Add auth session refresh endpoints

[DhruvPareek]

Summary

• Add OpenAPI paths for POST /auth/sessions/{id}/challenge and POST /auth/sessions/{id}/verify
• Add AuthSessionReauthRequest for the shared clientPublicKey body and reuse SignedRequestChallenge / AuthSession responses
• Wire the new session challenge/verify methods into Stainless and regenerate bundled specs

Validation

• npm run lint:openapi

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Project	Deployment	Actions	Updated (UTC)
grid-flow-builder	Ready	Preview, Comment	May 8, 2026 0:43am

[DhruvPareek]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• Add wallet privacy endpoint to OpenAPI #452
• Add auth session refresh endpoints #451 👈 (View in Graphite)
• Add OTP email update endpoint to OpenAPI #450
• Add passkey credentialId to auth challenge response #449
• Add passkey credentialId to auth credential list #448
• Align auth session request-id contract #445 : 1 other dependent PR (#446 )
• Align auth credential create contract #444
• main

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[github-actions]

✱ Stainless preview builds

This PR will update the grid SDKs with the following commit messages.

kotlin

feat(api): add issueChallenge and verifyChallenge methods to sessions

openapi

feat(api): add session reauthentication endpoints to auth/sessions

python

feat(api): add issue_challenge and verify_challenge methods to auth sessions

typescript

feat(api): add issueChallenge/verifyChallenge to auth sessions

Edit this comment to update them. They will appear in their respective SDK's changelogs.

✅ grid-python studio · code · diff

Your SDK build had at least one "note" diagnostic, but this did not represent a regression.
generate ✅ → build ✅ → lint ✅ → test ✅

pip install https://pkg.stainless.com/s/grid-python/e2b4290eeb0cbb55e1a9917783c1c203788ea189/grid-0.0.1-py3-none-any.whl

✅ grid-kotlin studio · code · diff

Your SDK build had at least one "note" diagnostic, but this did not represent a regression.
generate ✅ → build ✅ → lint ✅ → test ✅

✅ grid-typescript studio · code · diff

Your SDK build had at least one "note" diagnostic, but this did not represent a regression.
generate ✅ → build ❗ → lint ❗ → test ❗

✅ grid-openapi studio · code · diff

Your SDK build had at least one "note" diagnostic, but this did not represent a regression.
generate ✅

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Last updated: 2026-05-08 00:49:01 UTC