fix(oauth): plain HTTP token exchange to avoid 429#51
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soxfmr wants to merge 1 commit intomirrorange:mainfrom
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fix(oauth): plain HTTP token exchange to avoid 429#51soxfmr wants to merge 1 commit intomirrorange:mainfrom
soxfmr wants to merge 1 commit intomirrorange:mainfrom
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- Add create_plain_session() preferring httpx (no browser fingerprinting) - Add _token_request() using plain session with only Content-Type header to avoid 429 on console.anthropic.com/v1/oauth/token Co-Authored-By: Claude Opus 4.6 <[email protected]>
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Mar 25, 2026
Anthropic now rejects requests to console.anthropic.com/v1/oauth/token that carry browser fingerprinting headers (User-Agent, Origin, TLS JA3). Switch token exchange and refresh to use a plain httpx session instead of the chrome-impersonating client. Ref: mirrorange#51 Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
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Problem
The client reported
429from the the OAuth API:It seems this is related to the rate limit problem, but it is not. Anthropic has enforced a new policy for the requests rejecting some client fingerprinting headers (User-Agent, Origin, TLS JA3 etc.). You could check the reference URLs for more details.
Changes
We have taken the same approach of shahidshabbir-se/opencode-anthropic-oauth by creating a plain http session with the favored headers for the OAuth API.
References