dunkirk.sh
get your claude code tokens here
feat: init package
+40
.gitignore
+40
.gitignore
···
1
+
# dependencies (bun install)
2
+
node_modules
3
+
4
+
# output
5
+
out
6
+
dist
7
+
*.tgz
8
+
9
+
# code coverage
10
+
coverage
11
+
*.lcov
12
+
13
+
# logs
14
+
logs
15
+
_.log
16
+
report.[0-9]_.[0-9]_.[0-9]_.[0-9]_.json
17
+
18
+
# dotenv environment variable files
19
+
.env
20
+
.env.development.local
21
+
.env.test.local
22
+
.env.production.local
23
+
.env.local
24
+
25
+
# caches
26
+
.eslintcache
27
+
.cache
28
+
*.tsbuildinfo
29
+
30
+
# IntelliJ based IDEs
31
+
.idea
32
+
33
+
# Finder (MacOS) folder config
34
+
.DS_Store
35
+
36
+
# Crush agent workspace
37
+
.crush
38
+
39
+
# Bun install cache
40
+
bun.lockb
+28
CRUSH.md
+28
CRUSH.md
···
1
+
# CRUSH.md
2
+
3
+
Build/Lint/Test
4
+
- Install: bun install
5
+
- Typecheck: bun x tsc --noEmit
6
+
- Run: bun run index.ts or bun index.ts
7
+
- Test all: bun test
8
+
- Test watch: bun test --watch
9
+
- Test single: bun test path/to/file.test.ts -t "name"
10
+
- Lint: bun x biome check --write || bun x eslint . (if configured)
11
+
12
+
Conventions
13
+
- Runtime: Bun (see CLAUDE.md). Prefer Bun APIs (Bun.serve, Bun.file, Bun.$) over Node shims. Bun auto-loads .env.
14
+
- Modules: ESM only ("type": "module"). Use extensionless TS imports within project.
15
+
- Formatting: Prettier/biome if present; otherwise 2-space indent, trailing commas where valid, semicolons optional but consistent.
16
+
- Types: Strict TypeScript. Prefer explicit types on public APIs; infer locals via const. Use unknown over any. Narrow with guards.
17
+
- Imports: Group std/bun, third-party, then local. Use named imports; avoid default exports for libs.
18
+
- Naming: camelCase for vars/functions, PascalCase for types/classes, UPPER_SNAKE for env constants.
19
+
- Errors: Throw Error (or subclasses) with actionable messages; never swallow. Use Result-like returns only if established.
20
+
- Async: Prefer async/await. Always handle rejections. Avoid top-level await outside Bun entrypoints.
21
+
- Logging: Use console.* sparingly; no secrets in logs. Prefer structured messages.
22
+
- Env/config: Read via process.env or Bun.env at startup; validate and fail fast.
23
+
- Files: Prefer Bun.file and Response over fs. Avoid sync IO.
24
+
- Tests: bun:test (import { test, expect } from "bun:test"). Keep tests deterministic, no network without mocking.
25
+
26
+
Repo Notes
27
+
- No Cursor/Copilot rules detected.
28
+
- Add ".crush" dir to .gitignore (keeps agent scratch files untracked).
+15
README.md
+15
README.md
+531
anthropic.sh
+531
anthropic.sh
···
1
+
#!/bin/sh
2
+
3
+
# Anthropic OAuth client ID
4
+
CLIENT_ID="9d1c250a-e61b-44d9-88ed-5944d1962f5e"
5
+
6
+
# Token cache file location
7
+
CACHE_DIR="${HOME}/.config/crush/anthropic"
8
+
CACHE_FILE="${CACHE_DIR}/bearer_token"
9
+
REFRESH_TOKEN_FILE="${CACHE_DIR}/refresh_token"
10
+
11
+
# Function to extract expiration from cached token file
12
+
extract_expiration() {
13
+
if [ -f "${CACHE_FILE}.expires" ]; then
14
+
cat "${CACHE_FILE}.expires"
15
+
fi
16
+
}
17
+
18
+
# Function to check if token is valid
19
+
is_token_valid() {
20
+
local expires="$1"
21
+
22
+
if [ -z "$expires" ]; then
23
+
return 1
24
+
fi
25
+
26
+
local current_time=$(date +%s)
27
+
# Add 60 second buffer before expiration
28
+
local buffer_time=$((expires - 60))
29
+
30
+
if [ "$current_time" -lt "$buffer_time" ]; then
31
+
return 0
32
+
else
33
+
return 1
34
+
fi
35
+
}
36
+
37
+
# Function to generate PKCE challenge (requires openssl)
38
+
generate_pkce() {
39
+
# Generate 32 random bytes, base64url encode
40
+
local verifier=$(openssl rand -base64 32 | tr -d "=" | tr "/" "_" | tr "+" "-" | tr -d "\n")
41
+
# Create SHA256 hash of verifier, base64url encode
42
+
local challenge=$(printf '%s' "$verifier" | openssl dgst -sha256 -binary | openssl base64 | tr -d "=" | tr "/" "_" | tr "+" "-" | tr -d "\n")
43
+
44
+
echo "$verifier|$challenge"
45
+
}
46
+
47
+
# Function to exchange refresh token for new access token
48
+
exchange_refresh_token() {
49
+
local refresh_token="$1"
50
+
51
+
local bearer_response=$(curl -s -X POST "https://console.anthropic.com/v1/oauth/token" \
52
+
-H "Content-Type: application/json" \
53
+
-H "User-Agent: CRUSH/1.0" \
54
+
-d "{\"grant_type\":\"refresh_token\",\"refresh_token\":\"${refresh_token}\",\"client_id\":\"${CLIENT_ID}\"}")
55
+
56
+
# Parse JSON response - try jq first, fallback to sed
57
+
local access_token=""
58
+
local new_refresh_token=""
59
+
local expires_in=""
60
+
61
+
if command -v jq >/dev/null 2>&1; then
62
+
access_token=$(echo "$bearer_response" | jq -r '.access_token // empty')
63
+
new_refresh_token=$(echo "$bearer_response" | jq -r '.refresh_token // empty')
64
+
expires_in=$(echo "$bearer_response" | jq -r '.expires_in // empty')
65
+
else
66
+
# Fallback to sed parsing
67
+
access_token=$(echo "$bearer_response" | sed -n 's/.*"access_token"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p')
68
+
new_refresh_token=$(echo "$bearer_response" | sed -n 's/.*"refresh_token"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p')
69
+
expires_in=$(echo "$bearer_response" | sed -n 's/.*"expires_in"[[:space:]]*:[[:space:]]*\([0-9]*\).*/\1/p')
70
+
fi
71
+
72
+
if [ -n "$access_token" ] && [ -n "$expires_in" ]; then
73
+
# Calculate expiration timestamp
74
+
local current_time=$(date +%s)
75
+
local expires_timestamp=$((current_time + expires_in))
76
+
77
+
# Cache the new tokens
78
+
mkdir -p "$CACHE_DIR"
79
+
echo "$access_token" > "$CACHE_FILE"
80
+
chmod 600 "$CACHE_FILE"
81
+
82
+
if [ -n "$new_refresh_token" ]; then
83
+
echo "$new_refresh_token" > "$REFRESH_TOKEN_FILE"
84
+
chmod 600 "$REFRESH_TOKEN_FILE"
85
+
fi
86
+
87
+
# Store expiration for future reference
88
+
echo "$expires_timestamp" > "${CACHE_FILE}.expires"
89
+
chmod 600 "${CACHE_FILE}.expires"
90
+
91
+
echo "$access_token"
92
+
return 0
93
+
fi
94
+
95
+
return 1
96
+
}
97
+
98
+
# Function to exchange authorization code for tokens
99
+
exchange_authorization_code() {
100
+
local auth_code="$1"
101
+
local verifier="$2"
102
+
103
+
# Split code if it contains state (format: code#state)
104
+
local code=$(echo "$auth_code" | cut -d'#' -f1)
105
+
local state=""
106
+
if echo "$auth_code" | grep -q '#'; then
107
+
state=$(echo "$auth_code" | cut -d'#' -f2)
108
+
fi
109
+
110
+
# Use the working endpoint
111
+
local bearer_response=$(curl -s -X POST "https://console.anthropic.com/v1/oauth/token" \
112
+
-H "Content-Type: application/json" \
113
+
-H "User-Agent: CRUSH/1.0" \
114
+
-d "{\"code\":\"${code}\",\"state\":\"${state}\",\"grant_type\":\"authorization_code\",\"client_id\":\"${CLIENT_ID}\",\"redirect_uri\":\"https://console.anthropic.com/oauth/code/callback\",\"code_verifier\":\"${verifier}\"}")
115
+
116
+
# Parse JSON response - try jq first, fallback to sed
117
+
local access_token=""
118
+
local refresh_token=""
119
+
local expires_in=""
120
+
121
+
if command -v jq >/dev/null 2>&1; then
122
+
access_token=$(echo "$bearer_response" | jq -r '.access_token // empty')
123
+
refresh_token=$(echo "$bearer_response" | jq -r '.refresh_token // empty')
124
+
expires_in=$(echo "$bearer_response" | jq -r '.expires_in // empty')
125
+
else
126
+
# Fallback to sed parsing
127
+
access_token=$(echo "$bearer_response" | sed -n 's/.*"access_token"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p')
128
+
refresh_token=$(echo "$bearer_response" | sed -n 's/.*"refresh_token"[[:space:]]*:[[:space:]]*"\([^"]*\)".*/\1/p')
129
+
expires_in=$(echo "$bearer_response" | sed -n 's/.*"expires_in"[[:space:]]*:[[:space:]]*\([0-9]*\).*/\1/p')
130
+
fi
131
+
132
+
if [ -n "$access_token" ] && [ -n "$refresh_token" ] && [ -n "$expires_in" ]; then
133
+
# Calculate expiration timestamp
134
+
local current_time=$(date +%s)
135
+
local expires_timestamp=$((current_time + expires_in))
136
+
137
+
# Cache the tokens
138
+
mkdir -p "$CACHE_DIR"
139
+
echo "$access_token" > "$CACHE_FILE"
140
+
echo "$refresh_token" > "$REFRESH_TOKEN_FILE"
141
+
echo "$expires_timestamp" > "${CACHE_FILE}.expires"
142
+
chmod 600 "$CACHE_FILE" "$REFRESH_TOKEN_FILE" "${CACHE_FILE}.expires"
143
+
144
+
echo "$access_token"
145
+
return 0
146
+
else
147
+
return 1
148
+
fi
149
+
}
150
+
151
+
# Check for cached bearer token
152
+
if [ -f "$CACHE_FILE" ] && [ -f "${CACHE_FILE}.expires" ]; then
153
+
CACHED_TOKEN=$(cat "$CACHE_FILE")
154
+
CACHED_EXPIRES=$(cat "${CACHE_FILE}.expires")
155
+
if is_token_valid "$CACHED_EXPIRES"; then
156
+
# Token is still valid, output and exit
157
+
echo "$CACHED_TOKEN"
158
+
exit 0
159
+
fi
160
+
fi
161
+
162
+
# Bearer token is expired/missing, try to use cached refresh token
163
+
if [ -f "$REFRESH_TOKEN_FILE" ]; then
164
+
REFRESH_TOKEN=$(cat "$REFRESH_TOKEN_FILE")
165
+
if [ -n "$REFRESH_TOKEN" ]; then
166
+
# Try to exchange refresh token for new bearer token
167
+
BEARER_TOKEN=$(exchange_refresh_token "$REFRESH_TOKEN")
168
+
if [ -n "$BEARER_TOKEN" ]; then
169
+
# Successfully got new bearer token, output and exit
170
+
echo "$BEARER_TOKEN"
171
+
exit 0
172
+
fi
173
+
fi
174
+
fi
175
+
176
+
# No valid tokens found, start OAuth flow
177
+
# Check if openssl is available for PKCE
178
+
if ! command -v openssl >/dev/null 2>&1; then
179
+
exit 1
180
+
fi
181
+
182
+
# Generate PKCE challenge
183
+
PKCE_DATA=$(generate_pkce)
184
+
VERIFIER=$(echo "$PKCE_DATA" | cut -d'|' -f1)
185
+
CHALLENGE=$(echo "$PKCE_DATA" | cut -d'|' -f2)
186
+
187
+
# Build OAuth URL
188
+
AUTH_URL="https://claude.ai/oauth/authorize"
189
+
AUTH_URL="${AUTH_URL}?response_type=code"
190
+
AUTH_URL="${AUTH_URL}&client_id=${CLIENT_ID}"
191
+
AUTH_URL="${AUTH_URL}&redirect_uri=https://console.anthropic.com/oauth/code/callback"
192
+
AUTH_URL="${AUTH_URL}&scope=org:create_api_key%20user:profile%20user:inference"
193
+
AUTH_URL="${AUTH_URL}&code_challenge=${CHALLENGE}"
194
+
AUTH_URL="${AUTH_URL}&code_challenge_method=S256"
195
+
AUTH_URL="${AUTH_URL}&state=${VERIFIER}"
196
+
197
+
# Create a temporary HTML file with the authentication form
198
+
TEMP_HTML="/tmp/anthropic_auth_$$.html"
199
+
cat > "$TEMP_HTML" << EOF
200
+
<!DOCTYPE html>
201
+
<html>
202
+
<head>
203
+
<title>Anthropic Authentication</title>
204
+
<style>
205
+
* {
206
+
box-sizing: border-box;
207
+
margin: 0;
208
+
padding: 0;
209
+
}
210
+
211
+
body {
212
+
font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
213
+
background: linear-gradient(135deg, #1a1a1a 0%, #2d1810 100%);
214
+
color: #ffffff;
215
+
min-height: 100vh;
216
+
display: flex;
217
+
align-items: center;
218
+
justify-content: center;
219
+
padding: 20px;
220
+
}
221
+
222
+
.container {
223
+
background: rgba(40, 40, 40, 0.95);
224
+
border: 1px solid #4a4a4a;
225
+
border-radius: 16px;
226
+
padding: 48px;
227
+
max-width: 480px;
228
+
width: 100%;
229
+
text-align: center;
230
+
backdrop-filter: blur(10px);
231
+
box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
232
+
}
233
+
234
+
.logo {
235
+
width: 48px;
236
+
height: 48px;
237
+
margin: 0 auto 24px;
238
+
background: linear-gradient(135deg, #ff6b35 0%, #ff8e53 100%);
239
+
border-radius: 12px;
240
+
display: flex;
241
+
align-items: center;
242
+
justify-content: center;
243
+
font-weight: bold;
244
+
font-size: 24px;
245
+
color: white;
246
+
}
247
+
248
+
h1 {
249
+
font-size: 28px;
250
+
font-weight: 600;
251
+
margin-bottom: 12px;
252
+
color: #ffffff;
253
+
}
254
+
255
+
.subtitle {
256
+
color: #a0a0a0;
257
+
margin-bottom: 32px;
258
+
font-size: 16px;
259
+
line-height: 1.5;
260
+
}
261
+
262
+
.step {
263
+
margin-bottom: 32px;
264
+
text-align: left;
265
+
}
266
+
267
+
.step-number {
268
+
display: inline-flex;
269
+
align-items: center;
270
+
justify-content: center;
271
+
width: 24px;
272
+
height: 24px;
273
+
background: #ff6b35;
274
+
color: white;
275
+
border-radius: 50%;
276
+
font-size: 14px;
277
+
font-weight: 600;
278
+
margin-right: 12px;
279
+
}
280
+
281
+
.step-title {
282
+
font-weight: 600;
283
+
margin-bottom: 8px;
284
+
color: #ffffff;
285
+
}
286
+
287
+
.step-description {
288
+
color: #a0a0a0;
289
+
font-size: 14px;
290
+
margin-left: 36px;
291
+
}
292
+
293
+
.button {
294
+
display: inline-block;
295
+
background: linear-gradient(135deg, #ff6b35 0%, #ff8e53 100%);
296
+
color: white;
297
+
padding: 16px 32px;
298
+
text-decoration: none;
299
+
border-radius: 12px;
300
+
font-weight: 600;
301
+
font-size: 16px;
302
+
margin-bottom: 24px;
303
+
transition: all 0.2s ease;
304
+
box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
305
+
}
306
+
307
+
.button:hover {
308
+
transform: translateY(-2px);
309
+
box-shadow: 0 8px 20px rgba(255, 107, 53, 0.4);
310
+
}
311
+
312
+
.input-group {
313
+
margin-bottom: 24px;
314
+
text-align: left;
315
+
}
316
+
317
+
label {
318
+
display: block;
319
+
margin-bottom: 8px;
320
+
font-weight: 500;
321
+
color: #ffffff;
322
+
}
323
+
324
+
textarea {
325
+
width: 100%;
326
+
background: #2a2a2a;
327
+
border: 2px solid #4a4a4a;
328
+
border-radius: 8px;
329
+
padding: 16px;
330
+
color: #ffffff;
331
+
font-family: 'SF Mono', Monaco, 'Cascadia Code', monospace;
332
+
font-size: 14px;
333
+
line-height: 1.4;
334
+
resize: vertical;
335
+
min-height: 120px;
336
+
transition: border-color 0.2s ease;
337
+
}
338
+
339
+
textarea:focus {
340
+
outline: none;
341
+
border-color: #ff6b35;
342
+
box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
343
+
}
344
+
345
+
textarea::placeholder {
346
+
color: #666;
347
+
}
348
+
349
+
.submit-btn {
350
+
background: linear-gradient(135deg, #ff6b35 0%, #ff8e53 100%);
351
+
color: white;
352
+
border: none;
353
+
padding: 16px 32px;
354
+
border-radius: 12px;
355
+
font-weight: 600;
356
+
font-size: 16px;
357
+
cursor: pointer;
358
+
transition: all 0.2s ease;
359
+
box-shadow: 0 4px 12px rgba(255, 107, 53, 0.3);
360
+
width: 100%;
361
+
}
362
+
363
+
.submit-btn:hover {
364
+
transform: translateY(-2px);
365
+
box-shadow: 0 8px 20px rgba(255, 107, 53, 0.4);
366
+
}
367
+
368
+
.submit-btn:disabled {
369
+
opacity: 0.6;
370
+
cursor: not-allowed;
371
+
transform: none;
372
+
}
373
+
374
+
.status {
375
+
margin-top: 16px;
376
+
padding: 12px;
377
+
border-radius: 8px;
378
+
font-size: 14px;
379
+
display: none;
380
+
}
381
+
382
+
.status.success {
383
+
background: rgba(52, 168, 83, 0.1);
384
+
border: 1px solid rgba(52, 168, 83, 0.3);
385
+
color: #34a853;
386
+
}
387
+
388
+
.status.error {
389
+
background: rgba(234, 67, 53, 0.1);
390
+
border: 1px solid rgba(234, 67, 53, 0.3);
391
+
color: #ea4335;
392
+
}
393
+
</style>
394
+
</head>
395
+
<body>
396
+
<div class="container">
397
+
<div class="logo">A</div>
398
+
<h1>Anthropic Authentication</h1>
399
+
<p class="subtitle">Connect your Anthropic account to continue</p>
400
+
401
+
<div class="step">
402
+
<div class="step-title">
403
+
<span class="step-number">1</span>
404
+
Authorize with Anthropic
405
+
</div>
406
+
<div class="step-description">
407
+
Click the button below to open the Anthropic authorization page
408
+
</div>
409
+
</div>
410
+
411
+
<a href="$AUTH_URL" class="button" target="_blank">
412
+
Open Anthropic Authorization
413
+
</a>
414
+
415
+
<div class="step">
416
+
<div class="step-title">
417
+
<span class="step-number">2</span>
418
+
Paste your authorization token
419
+
</div>
420
+
<div class="step-description">
421
+
After authorizing, copy the token and paste it below
422
+
</div>
423
+
</div>
424
+
425
+
<form id="tokenForm">
426
+
<div class="input-group">
427
+
<label for="token">Authorization Token:</label>
428
+
<textarea
429
+
id="token"
430
+
name="token"
431
+
placeholder="Paste your token here..."
432
+
required
433
+
></textarea>
434
+
</div>
435
+
<button type="submit" class="submit-btn" id="submitBtn">
436
+
Complete Authentication
437
+
</button>
438
+
</form>
439
+
440
+
<div id="status" class="status"></div>
441
+
</div>
442
+
443
+
<script>
444
+
document.getElementById('tokenForm').addEventListener('submit', function(e) {
445
+
e.preventDefault();
446
+
447
+
const token = document.getElementById('token').value.trim();
448
+
if (!token) {
449
+
showStatus('Please paste your authorization token', 'error');
450
+
return;
451
+
}
452
+
453
+
// Ensure token has content before creating file
454
+
if (token.length > 0) {
455
+
// Save the token as a downloadable file
456
+
const blob = new Blob([token], { type: 'text/plain' });
457
+
const a = document.createElement('a');
458
+
a.href = URL.createObjectURL(blob);
459
+
a.download = "anthropic_token.txt";
460
+
document.body.appendChild(a); // Append to body to ensure it works in all browsers
461
+
a.click();
462
+
document.body.removeChild(a); // Clean up
463
+
464
+
// Verify file creation
465
+
console.log("Token file created with content length: " + token.length);
466
+
} else {
467
+
showStatus('Empty token detected, please provide a valid token', 'error');
468
+
return;
469
+
}
470
+
471
+
document.getElementById('submitBtn').disabled = true;
472
+
document.getElementById('submitBtn').textContent = "Token saved, you may close this tab.";
473
+
showStatus('Token file downloaded! You can close this window.', 'success');
474
+
475
+
// setTimeout(() => {
476
+
// window.close();
477
+
// }, 2000);
478
+
});
479
+
480
+
function showStatus(message, type) {
481
+
const status = document.getElementById('status');
482
+
status.textContent = message;
483
+
status.className = 'status ' + type;
484
+
status.style.display = 'block';
485
+
}
486
+
487
+
// Auto-close after 10 minutes
488
+
setTimeout(() => {
489
+
window.close();
490
+
}, 600000);
491
+
</script>
492
+
</body>
493
+
</html>
494
+
EOF
495
+
496
+
# Open the HTML file
497
+
if command -v xdg-open >/dev/null 2>&1; then
498
+
xdg-open "$TEMP_HTML" >/dev/null 2>&1 &
499
+
elif command -v open >/dev/null 2>&1; then
500
+
open "$TEMP_HTML" >/dev/null 2>&1 &
501
+
elif command -v start >/dev/null 2>&1; then
502
+
start "$TEMP_HTML" >/dev/null 2>&1 &
503
+
fi
504
+
505
+
# Wait for user to download the token file
506
+
TOKEN_FILE="$HOME/Downloads/anthropic_token.txt"
507
+
508
+
for i in $(seq 1 60); do
509
+
if [ -f "$TOKEN_FILE" ]; then
510
+
AUTH_CODE=$(cat "$TOKEN_FILE" | tr -d '\r\n')
511
+
rm -f "$TOKEN_FILE"
512
+
break
513
+
fi
514
+
sleep 2
515
+
done
516
+
517
+
# Clean up the temporary HTML file
518
+
rm -f "$TEMP_HTML"
519
+
520
+
if [ -z "$AUTH_CODE" ]; then
521
+
exit 1
522
+
fi
523
+
524
+
# Exchange code for tokens
525
+
ACCESS_TOKEN=$(exchange_authorization_code "$AUTH_CODE" "$VERIFIER")
526
+
if [ -n "$ACCESS_TOKEN" ]; then
527
+
echo "$ACCESS_TOKEN"
528
+
exit 0
529
+
else
530
+
exit 1
531
+
fi
+314
bin/anthropic.ts
+314
bin/anthropic.ts
···
1
+
#!/usr/bin/env bun
2
+
3
+
import { serve } from "bun";
4
+
5
+
const PORT = Number(Bun.env.PORT || 8787);
6
+
const ROOT = new URL("../", import.meta.url).pathname;
7
+
const PUBLIC_DIR = `${ROOT}public`;
8
+
9
+
function notFound() {
10
+
return new Response("Not found", { status: 404 });
11
+
}
12
+
13
+
async function serveStatic(pathname: string) {
14
+
const filePath = PUBLIC_DIR + (pathname === "/" ? "/index.html" : pathname);
15
+
try {
16
+
const file = Bun.file(filePath);
17
+
if (!(await file.exists())) return null;
18
+
return new Response(file);
19
+
} catch {
20
+
return null;
21
+
}
22
+
}
23
+
24
+
function json(data: unknown, init: ResponseInit = {}) {
25
+
return new Response(JSON.stringify(data), {
26
+
headers: { "content-type": "application/json", ...(init.headers || {}) },
27
+
...init,
28
+
});
29
+
}
30
+
31
+
function authorizeUrl(verifier: string, challenge: string) {
32
+
const u = new URL("https://claude.ai/oauth/authorize");
33
+
u.searchParams.set("response_type", "code");
34
+
u.searchParams.set("client_id", CLIENT_ID);
35
+
u.searchParams.set(
36
+
"redirect_uri",
37
+
"https://console.anthropic.com/oauth/code/callback",
38
+
);
39
+
u.searchParams.set("scope", "org:create_api_key user:profile user:inference");
40
+
u.searchParams.set("code_challenge", challenge);
41
+
u.searchParams.set("code_challenge_method", "S256");
42
+
u.searchParams.set("state", verifier);
43
+
return u.toString();
44
+
}
45
+
46
+
function base64url(input: ArrayBuffer | Uint8Array) {
47
+
const buf = input instanceof Uint8Array ? input : new Uint8Array(input);
48
+
return Buffer.from(buf)
49
+
.toString("base64")
50
+
.replace(/=/g, "")
51
+
.replace(/\+/g, "-")
52
+
.replace(/\//g, "_");
53
+
}
54
+
55
+
async function pkcePair() {
56
+
const bytes = crypto.getRandomValues(new Uint8Array(32));
57
+
const verifier = base64url(bytes);
58
+
const digest = await crypto.subtle.digest(
59
+
"SHA-256",
60
+
new TextEncoder().encode(verifier),
61
+
);
62
+
const challenge = base64url(digest as ArrayBuffer);
63
+
return { verifier, challenge };
64
+
}
65
+
66
+
const CLIENT_ID = "9d1c250a-e61b-44d9-88ed-5944d1962f5e";
67
+
68
+
async function exchangeRefreshToken(refreshToken: string) {
69
+
const res = await fetch("https://console.anthropic.com/v1/oauth/token", {
70
+
method: "POST",
71
+
headers: {
72
+
"content-type": "application/json",
73
+
"user-agent": "CRUSH/1.0",
74
+
},
75
+
body: JSON.stringify({
76
+
grant_type: "refresh_token",
77
+
refresh_token: refreshToken,
78
+
client_id: CLIENT_ID,
79
+
}),
80
+
});
81
+
if (!res.ok) throw new Error(`refresh failed: ${res.status}`);
82
+
return (await res.json()) as {
83
+
access_token: string;
84
+
refresh_token?: string;
85
+
expires_in: number;
86
+
};
87
+
}
88
+
89
+
function cleanPastedCode(input: string) {
90
+
let v = input.trim();
91
+
v = v.replace(/^code\s*[:=]\s*/i, "");
92
+
v = v.replace(/^["'`]/, "").replace(/["'`]$/, "");
93
+
const m = v.match(/[A-Za-z0-9._~-]+(?:#[A-Za-z0-9._~-]+)?/);
94
+
if (m) return m[0];
95
+
return v;
96
+
}
97
+
98
+
async function exchangeAuthorizationCode(code: string, verifier: string) {
99
+
const cleaned = cleanPastedCode(code);
100
+
const [pure, state = ""] = cleaned.split("#");
101
+
const body = {
102
+
code: pure ?? "",
103
+
state: state ?? "",
104
+
grant_type: "authorization_code",
105
+
client_id: CLIENT_ID,
106
+
redirect_uri: "https://console.anthropic.com/oauth/code/callback",
107
+
code_verifier: verifier,
108
+
} satisfies Record<string, string>;
109
+
const res = await fetch("https://console.anthropic.com/v1/oauth/token", {
110
+
method: "POST",
111
+
headers: {
112
+
"content-type": "application/json",
113
+
"user-agent": "CRUSH/1.0",
114
+
},
115
+
body: JSON.stringify(body),
116
+
});
117
+
if (!res.ok) throw new Error(`code exchange failed: ${res.status}`);
118
+
return (await res.json()) as {
119
+
access_token: string;
120
+
refresh_token: string;
121
+
expires_in: number;
122
+
};
123
+
}
124
+
125
+
const memory = new Map<
126
+
string,
127
+
{ accessToken: string; refreshToken: string; expiresAt: number }
128
+
>();
129
+
130
+
const HOME = Bun.env.HOME || Bun.env.USERPROFILE || ".";
131
+
const CACHE_DIR = `${HOME}/.config/crush/anthropic`;
132
+
const BEARER_FILE = `${CACHE_DIR}/bearer_token`;
133
+
const REFRESH_FILE = `${CACHE_DIR}/refresh_token`;
134
+
const EXPIRES_FILE = `${CACHE_DIR}/bearer_token.expires`;
135
+
136
+
async function ensureDir() {
137
+
await Bun.$`mkdir -p ${CACHE_DIR}`;
138
+
}
139
+
140
+
async function writeSecret(path: string, data: string) {
141
+
await Bun.write(path, data);
142
+
await Bun.$`chmod 600 ${path}`;
143
+
}
144
+
145
+
async function readText(path: string) {
146
+
const f = Bun.file(path);
147
+
if (!(await f.exists())) return undefined;
148
+
return await f.text();
149
+
}
150
+
151
+
async function loadFromDisk() {
152
+
const [bearer, refresh, expires] = await Promise.all([
153
+
readText(BEARER_FILE),
154
+
readText(REFRESH_FILE),
155
+
readText(EXPIRES_FILE),
156
+
]);
157
+
if (!bearer || !refresh || !expires) return undefined;
158
+
const exp = Number.parseInt(expires, 10) || 0;
159
+
return {
160
+
accessToken: bearer.trim(),
161
+
refreshToken: refresh.trim(),
162
+
expiresAt: exp,
163
+
};
164
+
}
165
+
166
+
async function saveToDisk(entry: {
167
+
accessToken: string;
168
+
refreshToken: string;
169
+
expiresAt: number;
170
+
}) {
171
+
await ensureDir();
172
+
await writeSecret(BEARER_FILE, `${entry.accessToken}\n`);
173
+
await writeSecret(REFRESH_FILE, `${entry.refreshToken}\n`);
174
+
await writeSecret(EXPIRES_FILE, `${String(entry.expiresAt)}\n`);
175
+
}
176
+
177
+
let serverStarted = false;
178
+
179
+
async function bootstrapFromDisk() {
180
+
const entry = await loadFromDisk();
181
+
if (!entry) return false;
182
+
const now = Math.floor(Date.now() / 1000);
183
+
if (now < entry.expiresAt - 60) {
184
+
Bun.write(Bun.stdout, `${entry.accessToken}\n`);
185
+
setTimeout(() => process.exit(0), 50);
186
+
memory.set("tokens", entry);
187
+
return true;
188
+
}
189
+
try {
190
+
const refreshed = await exchangeRefreshToken(entry.refreshToken);
191
+
entry.accessToken = refreshed.access_token;
192
+
entry.expiresAt = Math.floor(Date.now() / 1000) + refreshed.expires_in;
193
+
if (refreshed.refresh_token) entry.refreshToken = refreshed.refresh_token;
194
+
await saveToDisk(entry);
195
+
memory.set("tokens", entry);
196
+
Bun.write(Bun.stdout, `${entry.accessToken}\n`);
197
+
setTimeout(() => process.exit(0), 50);
198
+
return true;
199
+
} catch {
200
+
return false;
201
+
}
202
+
}
203
+
204
+
await bootstrapFromDisk();
205
+
206
+
const argv = process.argv.slice(2);
207
+
if (argv.includes("-h") || argv.includes("--help")) {
208
+
Bun.write(Bun.stdout, `Usage: anthropic\n\n`);
209
+
Bun.write(Bun.stdout, ` anthropic Start UI and flow; prints token on success and exits.\n`);
210
+
Bun.write(Bun.stdout, ` PORT=xxxx anthropic Override port (default 8787).\n`);
211
+
Bun.write(Bun.stdout, `\nTokens are cached at ~/.config/crush/anthropic and reused on later runs.\n`);
212
+
process.exit(0);
213
+
}
214
+
215
+
serve({
216
+
port: PORT,
217
+
development: { console: false },
218
+
async fetch(req) {
219
+
const url = new URL(req.url);
220
+
221
+
if (url.pathname.startsWith("/api/")) {
222
+
if (url.pathname === "/api/ping")
223
+
return json({ ok: true, ts: Date.now() });
224
+
225
+
if (url.pathname === "/api/auth/start" && req.method === "POST") {
226
+
const { verifier, challenge } = await pkcePair();
227
+
const authUrl = authorizeUrl(verifier, challenge);
228
+
return json({ authUrl, verifier });
229
+
}
230
+
231
+
if (url.pathname === "/api/auth/complete" && req.method === "POST") {
232
+
const body = (await req.json().catch(() => ({}))) as {
233
+
code?: string;
234
+
verifier?: string;
235
+
};
236
+
const code = String(body.code ?? "");
237
+
const verifier = String(body.verifier ?? "");
238
+
if (!code || !verifier)
239
+
return json({ error: "missing code or verifier" }, { status: 400 });
240
+
const tokens = await exchangeAuthorizationCode(code, verifier);
241
+
const expiresAt =
242
+
Math.floor(Date.now() / 1000) + (tokens.expires_in ?? 0);
243
+
const entry = {
244
+
accessToken: tokens.access_token,
245
+
refreshToken: tokens.refresh_token,
246
+
expiresAt,
247
+
};
248
+
memory.set("tokens", entry);
249
+
await saveToDisk(entry);
250
+
Bun.write(Bun.stdout, `${entry.accessToken}\n`);
251
+
setTimeout(() => process.exit(0), 100);
252
+
return json({ ok: true });
253
+
}
254
+
255
+
if (url.pathname === "/api/token" && req.method === "GET") {
256
+
let entry = memory.get("tokens");
257
+
if (!entry) {
258
+
const disk = await loadFromDisk();
259
+
if (disk) {
260
+
entry = disk;
261
+
memory.set("tokens", entry);
262
+
}
263
+
}
264
+
if (!entry)
265
+
return json({ error: "not_authenticated" }, { status: 401 });
266
+
const now = Math.floor(Date.now() / 1000);
267
+
if (now >= entry.expiresAt - 60) {
268
+
const refreshed = await exchangeRefreshToken(entry.refreshToken);
269
+
entry.accessToken = refreshed.access_token;
270
+
entry.expiresAt =
271
+
Math.floor(Date.now() / 1000) + refreshed.expires_in;
272
+
if (refreshed.refresh_token)
273
+
entry.refreshToken = refreshed.refresh_token;
274
+
memory.set("tokens", entry);
275
+
await saveToDisk(entry);
276
+
}
277
+
return json({
278
+
accessToken: entry.accessToken,
279
+
expiresAt: entry.expiresAt,
280
+
});
281
+
}
282
+
283
+
return notFound();
284
+
}
285
+
286
+
const staticResp = await serveStatic(url.pathname);
287
+
if (staticResp) return staticResp;
288
+
289
+
return notFound();
290
+
},
291
+
error() {},
292
+
});
293
+
294
+
if (!serverStarted) {
295
+
serverStarted = true;
296
+
const url = `http://localhost:${PORT}`;
297
+
const tryRun = async (cmd: string, ...args: string[]) => {
298
+
try {
299
+
await Bun.$`${[cmd, ...args]}`.quiet();
300
+
return true;
301
+
} catch {
302
+
return false;
303
+
}
304
+
};
305
+
(async () => {
306
+
if (process.platform === "darwin") {
307
+
if (await tryRun("open", url)) return;
308
+
} else if (process.platform === "win32") {
309
+
if (await tryRun("cmd", "/c", "start", "", url)) return;
310
+
} else {
311
+
if (await tryRun("xdg-open", url)) return;
312
+
}
313
+
})();
314
+
}
+23
bin/open.ts
+23
bin/open.ts
···
1
+
#!/usr/bin/env bun
2
+
3
+
const PORT = Number(Bun.env.PORT || 8787);
4
+
5
+
async function open(url: string) {
6
+
const tryRun = async (cmd: string, ...args: string[]) => {
7
+
try {
8
+
await Bun.$`${[cmd, ...args]}`.quiet();
9
+
return true;
10
+
} catch {
11
+
return false;
12
+
}
13
+
};
14
+
if (process.platform === "darwin") {
15
+
if (await tryRun("open", url)) return;
16
+
} else if (process.platform === "win32") {
17
+
if (await tryRun("cmd", "/c", "start", "", url)) return;
18
+
} else {
19
+
if (await tryRun("xdg-open", url)) return;
20
+
}
21
+
}
22
+
23
+
await open(`http://localhost:${PORT}`);
+29
bun.lock
+29
bun.lock
···
1
+
{
2
+
"lockfileVersion": 1,
3
+
"workspaces": {
4
+
"": {
5
+
"name": "anthropic-api-key",
6
+
"devDependencies": {
7
+
"@types/bun": "latest",
8
+
},
9
+
"peerDependencies": {
10
+
"typescript": "^5",
11
+
},
12
+
},
13
+
},
14
+
"packages": {
15
+
"@types/bun": ["@types/bun@1.2.19", "", { "dependencies": { "bun-types": "1.2.19" } }, "sha512-d9ZCmrH3CJ2uYKXQIUuZ/pUnTqIvLDS0SK7pFmbx8ma+ziH/FRMoAq5bYpRG7y+w1gl+HgyNZbtqgMq4W4e2Lg=="],
16
+
17
+
"@types/node": ["@types/node@24.1.0", "", { "dependencies": { "undici-types": "~7.8.0" } }, "sha512-ut5FthK5moxFKH2T1CUOC6ctR67rQRvvHdFLCD2Ql6KXmMuCrjsSsRI9UsLCm9M18BMwClv4pn327UvB7eeO1w=="],
18
+
19
+
"@types/react": ["@types/react@19.1.9", "", { "dependencies": { "csstype": "^3.0.2" } }, "sha512-WmdoynAX8Stew/36uTSVMcLJJ1KRh6L3IZRx1PZ7qJtBqT3dYTgyDTx8H1qoRghErydW7xw9mSJ3wS//tCRpFA=="],
20
+
21
+
"bun-types": ["bun-types@1.2.19", "", { "dependencies": { "@types/node": "*" }, "peerDependencies": { "@types/react": "^19" } }, "sha512-uAOTaZSPuYsWIXRpj7o56Let0g/wjihKCkeRqUBhlLVM/Bt+Fj9xTo+LhC1OV1XDaGkz4hNC80et5xgy+9KTHQ=="],
22
+
23
+
"csstype": ["csstype@3.1.3", "", {}, "sha512-M1uQkMl8rQK/szD0LNhtqxIPLpimGm8sOBwU7lLnCpSbTyY3yeU1Vc7l4KT5zT4s/yOxHH5O7tIuuLOCnLADRw=="],
24
+
25
+
"typescript": ["typescript@5.9.2", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-CWBzXQrc/qOkhidw1OzBTQuYRbfyxDXJMVJ1XNwUHGROVmuaeiEm3OslpZ1RV96d7SKKjZKrSJu3+t/xlw3R9A=="],
26
+
27
+
"undici-types": ["undici-types@7.8.0", "", {}, "sha512-9UJ2xGDvQ43tYyVMpuHlsgApydB8ZKfVYTsLDhXkFL/6gfkp+U8xTGdh8pMJv1SpZna0zxG1DwsKZsreLbXBxw=="],
28
+
}
29
+
}
+12
crush.json
+12
crush.json
+35
package.json
+35
package.json
···
1
+
{
2
+
"name": "anthropic-api-key",
3
+
"version": "0.1.0",
4
+
"description": "CLI to fetch Anthropic API access tokens via OAuth with PKCE using Bun.",
5
+
"type": "module",
6
+
"private": false,
7
+
"license": "MIT",
8
+
"author": "taciturnaxolotl",
9
+
"repository": {
10
+
"type": "git",
11
+
"url": "https://github.com/taciturnaxolotl/anthropic-api-key.git"
12
+
},
13
+
"bugs": {
14
+
"url": "https://github.com/taciturnaxolotl/anthropic-api-key/issues"
15
+
},
16
+
"homepage": "https://github.com/taciturnaxolotl/anthropic-api-key#readme",
17
+
"bin": {
18
+
"anthropic": "dist/anthropic.js"
19
+
},
20
+
"exports": {
21
+
".": "./dist/anthropic.js"
22
+
},
23
+
"files": [
24
+
"dist",
25
+
"public"
26
+
],
27
+
"scripts": {
28
+
"build": "bun build bin/anthropic.ts --outdir=dist --target=bun --sourcemap=external",
29
+
"prepare": "bun run build"
30
+
},
31
+
"devDependencies": {
32
+
"@types/bun": "latest",
33
+
"typescript": "^5"
34
+
}
35
+
}
+181
public/index.html
+181
public/index.html
···
1
+
<!doctype html>
2
+
<html>
3
+
<head>
4
+
<meta charset="utf-8" />
5
+
<meta name="viewport" content="width=device-width, initial-scale=1" />
6
+
<title>Anthropic Auth</title>
7
+
<style>
8
+
body {
9
+
font-family:
10
+
system-ui,
11
+
-apple-system,
12
+
Segoe UI,
13
+
Roboto,
14
+
Ubuntu,
15
+
Cantarell,
16
+
Noto Sans,
17
+
sans-serif;
18
+
background: #0f0f10;
19
+
color: #fff;
20
+
margin: 0;
21
+
display: flex;
22
+
min-height: 100vh;
23
+
align-items: center;
24
+
justify-content: center;
25
+
}
26
+
.card {
27
+
background: #1a1a1b;
28
+
border: 1px solid #2b2b2c;
29
+
border-radius: 14px;
30
+
padding: 28px;
31
+
max-width: 560px;
32
+
width: 100%;
33
+
}
34
+
h1 {
35
+
margin: 0 0 8px;
36
+
}
37
+
p {
38
+
color: #9aa0a6;
39
+
}
40
+
button,
41
+
a.button {
42
+
background: linear-gradient(135deg, #ff6b35, #ff8e53);
43
+
color: #fff;
44
+
border: none;
45
+
border-radius: 10px;
46
+
padding: 12px 16px;
47
+
font-weight: 600;
48
+
cursor: pointer;
49
+
text-decoration: none;
50
+
display: inline-block;
51
+
}
52
+
textarea {
53
+
width: 100%;
54
+
min-height: 120px;
55
+
background: #111;
56
+
border: 1px solid #2b2b2c;
57
+
border-radius: 10px;
58
+
color: #fff;
59
+
padding: 10px;
60
+
}
61
+
.row {
62
+
margin: 16px 0;
63
+
}
64
+
.muted {
65
+
color: #9aa0a6;
66
+
}
67
+
.status {
68
+
margin-top: 8px;
69
+
font-size: 14px;
70
+
}
71
+
</style>
72
+
</head>
73
+
<body>
74
+
<div class="card">
75
+
<h1>Anthropic Authentication</h1>
76
+
<p class="muted">
77
+
Start the OAuth flow, authorize in the new tab, then paste the
78
+
returned token here.
79
+
</p>
80
+
81
+
<div class="row">
82
+
<a
83
+
id="authlink"
84
+
class="button"
85
+
href="#"
86
+
target="_blank"
87
+
style="display: none"
88
+
>Open Anthropic Authorization</a
89
+
>
90
+
</div>
91
+
92
+
<div class="row">
93
+
<label for="code">Authorization code</label>
94
+
<textarea
95
+
id="code"
96
+
placeholder="Paste the exact code shown by Anthropic (not a URL). If it includes a #, keep the part after it too."
97
+
></textarea>
98
+
</div>
99
+
100
+
<div class="row">
101
+
<button id="complete">Complete Authentication</button>
102
+
</div>
103
+
104
+
<div id="status" class="status"></div>
105
+
</div>
106
+
107
+
<script>
108
+
let verifier = "";
109
+
const statusEl = document.getElementById("status");
110
+
111
+
function setStatus(msg, ok) {
112
+
statusEl.textContent = msg;
113
+
statusEl.style.color = ok ? "#34a853" : "#ea4335";
114
+
}
115
+
116
+
(async () => {
117
+
setStatus("Preparing authorization...", true);
118
+
const res = await fetch("/api/auth/start", { method: "POST" });
119
+
if (!res.ok) {
120
+
setStatus("Failed to prepare auth", false);
121
+
return;
122
+
}
123
+
const data = await res.json();
124
+
verifier = data.verifier;
125
+
const a = document.getElementById("authlink");
126
+
a.href = data.authUrl;
127
+
a.style.display = "inline-block";
128
+
setStatus(
129
+
'Ready. Click "Open Authorization" to continue.',
130
+
true,
131
+
);
132
+
})();
133
+
134
+
const completeBtn = document.getElementById("complete");
135
+
document
136
+
.getElementById("complete")
137
+
.addEventListener("click", async () => {
138
+
if (completeBtn.disabled) return;
139
+
completeBtn.disabled = true;
140
+
const code = document.getElementById("code").value.trim();
141
+
if (!code || !verifier) {
142
+
setStatus(
143
+
"Missing code or verifier. Click Start first.",
144
+
false,
145
+
);
146
+
completeBtn.disabled = false;
147
+
return;
148
+
}
149
+
const res = await fetch("/api/auth/complete", {
150
+
method: "POST",
151
+
headers: { "content-type": "application/json" },
152
+
body: JSON.stringify({ code, verifier }),
153
+
});
154
+
if (!res.ok) {
155
+
setStatus("Code exchange failed", false);
156
+
completeBtn.disabled = false;
157
+
return;
158
+
}
159
+
setStatus("Authenticated! Fetching token...", true);
160
+
const t = await fetch("/api/token");
161
+
if (!t.ok) {
162
+
setStatus("Could not fetch token", false);
163
+
completeBtn.disabled = false;
164
+
return;
165
+
}
166
+
const tok = await t.json();
167
+
setStatus(
168
+
"Access token acquired (expires " +
169
+
new Date(tok.expiresAt * 1000).toLocaleString() +
170
+
")",
171
+
true,
172
+
);
173
+
setTimeout(() => {
174
+
try {
175
+
window.close();
176
+
} catch {}
177
+
}, 500);
178
+
});
179
+
</script>
180
+
</body>
181
+
</html>
+1
src/server.ts
+1
src/server.ts
···
1
+
export {};
+29
tsconfig.json
+29
tsconfig.json
···
1
+
{
2
+
"compilerOptions": {
3
+
// Environment setup & latest features
4
+
"lib": ["ESNext"],
5
+
"target": "ESNext",
6
+
"module": "Preserve",
7
+
"moduleDetection": "force",
8
+
"jsx": "react-jsx",
9
+
"allowJs": true,
10
+
11
+
// Bundler mode
12
+
"moduleResolution": "bundler",
13
+
"allowImportingTsExtensions": true,
14
+
"verbatimModuleSyntax": true,
15
+
"noEmit": true,
16
+
17
+
// Best practices
18
+
"strict": true,
19
+
"skipLibCheck": true,
20
+
"noFallthroughCasesInSwitch": true,
21
+
"noUncheckedIndexedAccess": true,
22
+
"noImplicitOverride": true,
23
+
24
+
// Some stricter flags (disabled by default)
25
+
"noUnusedLocals": false,
26
+
"noUnusedParameters": false,
27
+
"noPropertyAccessFromIndexSignature": false
28
+
}
29
+
}