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SEP-2243 HTTP Standardization #2243

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Merged
kurtisvg merged 33 commits into from
Apr 15, 2026
Merged

SEP-2243 HTTP Standardization #2243

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b5837fb
Convert proposal from Google Doc to markdown doc in seps folder
mikekistler Feb 4, 2026
a86b856
Fix markdownlint and cspell issues
mikekistler Feb 4, 2026
2a1b11b
Add literal examples
mikekistler Feb 4, 2026
0ca096c
Add rationale for location of custom header metadata
mikekistler Feb 4, 2026
30afbb4
Define value encoding rules
mikekistler Feb 4, 2026
4a3bff5
Add section on Edge Cases & Conformance Tests
mikekistler Feb 4, 2026
baff541
Clarify requirement on clients to support custom headers
mikekistler Feb 4, 2026
caf47f4
Define JSON RPC error code for header mismatch errors
mikekistler Feb 4, 2026
22e3b54
Add clear error handling for missing custom headers
mikekistler Feb 4, 2026
ac3c345
Added tradeoffs on passing metadata in headers vs path
mikekistler Feb 4, 2026
e797a60
Added section on options for header number/size limits
mikekistler Feb 4, 2026
563a659
Address PR review comments
mikekistler Feb 13, 2026
a8b84a1
Apply suggestion from @mikekistler
mikekistler Feb 17, 2026
35bf6fa
Collapse Mcp-Tool-Name, Mcp-Resource, Mcp-Prompt-Name into Mcp-Name
mikekistler Feb 27, 2026
3f3b37c
Specify Base64 encoding is of UTF-8 representation
mikekistler Feb 27, 2026
aabbb54
Add rationale for encoding approach with alternatives evaluation
mikekistler Feb 27, 2026
d49bc73
Drop caching as advantage of path-based routing
mikekistler Feb 27, 2026
ac3ebcb
Clarify client behavior for setting standard and custom headers
mikekistler Feb 27, 2026
042cfc6
Allow intermediaries to reject invalid requests without JSON-RPC erro…
mikekistler Feb 27, 2026
3b08ec8
Add security guidance for trusting header values
mikekistler Feb 27, 2026
9a6109c
Add rationale for scoping x-mcp-header to tools only
mikekistler Feb 27, 2026
7a35a75
Remove limit on header value size
mikekistler Mar 5, 2026
2670ec0
Rename sep file to match PR number
mikekistler Mar 5, 2026
6b42ef7
Fix render-seps check
mikekistler Mar 24, 2026
4cb526d
Fix format check
mikekistler Mar 24, 2026
7430fca
First draft of spec updates for SEP #2243
mikekistler Mar 24, 2026
6b127b8
Add changelog entry for SEP 2243
mikekistler Mar 24, 2026
8e63210
Clarify that Mcp-Method header is required for notifications and add …
mikekistler Mar 27, 2026
1598c80
Merge branch 'main' into mdk/http-standardization-sep
mikekistler Mar 29, 2026
1517efe
Address PR review comments.
mikekistler Apr 6, 2026
6eea005
Apply suggestion from @mikekistler
mikekistler Apr 6, 2026
91ef749
Fix Render SEPs and Prettier PR checks
mikekistler Apr 7, 2026
0a7e5a0
Merge branch 'main' into mdk/http-standardization-sep
mikekistler Apr 15, 2026
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773 changes: 773 additions & 0 deletions docs/community/seps/2243-http-standardization.mdx
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6 changes: 6 additions & 0 deletions docs/docs.json
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Original file line number Diff line number Diff line change
Expand Up @@ -421,6 +421,12 @@
"seps/2207-oidc-refresh-token-guidance",
"seps/2260-Require-Server-requests-to-be-associated-with-Client-requests"
]
},
{
"group": "Draft",
"pages": [
"seps/2243-http-standardization"
]
}
]
},
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