Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
One change · mcp

Client Registration changed

specification/draft/basic/authorization/client-registration

Nearest release: v2.1.280, published 2 hours after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 22 Sep 2026 13:08 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 22 Sep 2026 13:37 UTC.

Upstream edited
Recorded here
Lines+2added
Lines−2removed
From line 58 where the diff opens
First seen 26 Aug 2026 this site's first read of the page
Recorded edits2to this page, all time

The whole hunk

from line 58, old and new numbered
/
lines
from line 58
5858 "logo_uri": "https://app.example.com/logo.png",
5959 "redirect_uris": [
6060 "http://127.0.0.1:3000/callback",
61 "http://localhost:3000/callback"
61 "http://[::1]:3000/callback"
6262 ],
6363 "grant_types": ["authorization_code"],
6464 "response_types": ["code"],
from line 81
8181 Note over Client,Metadata: Client hosts metadata at<br/>https://app.example.com/oauth/metadata.json
8282 
8383 User->>Client: Initiates connection to MCP Server
84 Client->>Server: Authorization Request<br/>client_id=https://app.example.com/oauth/metadata.json<br/>redirect_uri=http://localhost:3000/callback
84 Client->>Server: Authorization Request<br/>client_id=https://app.example.com/oauth/metadata.json<br/>redirect_uri=http://127.0.0.1:3000/callback
8585 
8686 Server->>User: Authentication prompt
8787 User->>Server: Provides credentials