Add streamable-http transport with required bearer-token auth - #25
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erikgaas wants to merge 2 commits into
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Add streamable-http transport with required bearer-token auth#25erikgaas wants to merge 2 commits into
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Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HEzsvsrhD291xoipP6X9KC
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marked this pull request as draft
July 29, 2026 18:49
…only Host check Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HEzsvsrhD291xoipP6X9KC
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Fixes #24. Stacked on #23 (base branch
mcp2-support), since HTTP mode needs the 2.x import; retarget tomainonce that merges.clikernel-mcpnow parses arguments (--transport,--host,--portviacall_parse); stdio stays the default and is unchanged. Forstreamable-httpthe tools are served throughMCPServer.streamable_http_app()under uvicorn, wrapped in a small ASGI middleware that requiresAuthorization: Bearer <token>on every HTTP request, compared withsecrets.compare_digest.run_mcprefuses to start HTTP without a token (token=or$CLIKERNEL_TOKEN), so a reachableexecuteendpoint can't exist unauthenticated.Notes on the choices: auth sits in ASGI middleware rather than the SDK's
token_verifier/AuthSettingsbecause those model an OAuth resource server (they require issuer and resource-server URLs), which is ceremony for a static personal token; the middleware is also identical across both SDK majors. uvicorn is imported lazily in the HTTP branch only, so stdio pays nothing for it, and it arrives withmcpin both majors.Test: one new
test_http_authstarts the server on a free port, asserts 401 for missing and wrong tokens, then runs a real client session (tools list, state persisting across calls). Green onmcp 1.29.0(25/25 suite) and on realmcp 2.0.0. Also verified by hand end to end:claude mcp add --transport http ... -H "Authorization: Bearer ..."reports Connected.Usage: