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fix: prevent 401s when claude-code drops oauth-2025-04-20 from anthropic-beta #3

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fix: prevent 401s when claude-code drops oauth-2025-04-20 from anthropic-beta #3

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18 changes: 18 additions & 0 deletions src/server.js
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Original file line number Diff line number Diff line change
Expand Up @@ -194,6 +194,24 @@ async function forwardRequest(req, res, body, accountManager, upstream, retryCou
headers[key] = value;
}

// Defend against an upstream Claude Code regression: claude-code 2.1.121+
// intermittently drops `oauth-2025-04-20` from `anthropic-beta` when
// model-level betas are merged in. The Anthropic API then returns 401 with
// the misleading `"OAuth authentication is currently not supported"` body.
// teamclaude faithfully forwards what claude-code sent, so the failure
// surfaces here. Refs: anthropics/claude-code#54235, OpenClaw #41444.
// Idempotent (no-op if header already present); gated on isOAuth so
// x-api-key flows are untouched.
if (isOAuth) {
const REQUIRED_OAUTH_BETA = 'oauth-2025-04-20';
const betaKey = Object.keys(headers).find(k => k.toLowerCase() === 'anthropic-beta');
const existing = betaKey ? String(headers[betaKey]).split(',').map(s => s.trim()).filter(Boolean) : [];
if (!existing.includes(REQUIRED_OAUTH_BETA)) {
existing.unshift(REQUIRED_OAUTH_BETA);
headers[betaKey || 'anthropic-beta'] = existing.join(',');
}
}

if (isOAuth) {
headers['authorization'] = `Bearer ${account.credential}`;
} else {
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