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API Change Feed MCP Server

by changefeed Your server? Claim it
answering

API Change Feed is answering right now. Last checked 8 min ago. It exposes 6 tools.

What broke since your version, for 60 popular APIs/SDKs. Free quick check; full reports via x402.

Uptime history 24 hours of history
24 hours agonow
100.0%
Uptime 24h
89 of 89 checks
6
Tools
read from the server
473 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

Today is the operative word: we check API Change Feed every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 8 min ago.

run in your terminal
claude mcp add api-change-feed --transport http https://changefeed.dev/mcp
Settings → Connectors → Add custom connector, then paste this address
https://changefeed.dev/mcp
~/.codex/config.toml
[mcp_servers.api-change-feed]
url = "https://changefeed.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "api-change-feed": {
      "url": "https://changefeed.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "api-change-feed": {
      "type": "http",
      "url": "https://changefeed.dev/mcp"
    }
  }
}

Available tools 6

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

changes
get_changes
Normalized change records (breaking, deprecation, security, release) for one tracked API/SDK or all of them, filterable by date and kind. Costs $0.005 (x402, USDC).
digest
digest
Everything breaking, deprecated or security-related across all tracked sources since a date, grouped by source. Costs $0.02 (x402, USDC).
preview
preview_changes
Latest five breaking/deprecation/security headlines across all sources, to check freshness. Free.
quick
quick_check
Free. Before writing code against a library you may know only from older training data, check whether it changed since that version: verdict, major versions crossed, how many breaking changes, deprecations and security fixes, and the top three breaking headlines. Call upgrade_check (paid) for the full details with evidence.
sources
list_sources
List the 60 APIs/SDKs we track and the package names to query them by. Free.
upgrade
upgrade_check
What changed in a package since the version your code targets: breaking changes, deprecations, security fixes and major versions crossed, with the sentence that triggered each label. Call this before writing code against a library you may know only from older training data. Costs $0.01 (x402, USDC).

Endpoints

URLTransportStateLatencyChecked
https://changefeed.dev/mcp streamable-http answering 666 ms 8 min ago

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API Change Feed — questions

Answers built from our own checks of this server.

What can API Change Feed do?
It exposes 6 tools, read directly from the server on our last check. Among them: digest, get_changes, list_sources, preview_changes, quick_check, upgrade_check. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is API Change Feed working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 89 of 89 checks got a reply (100.0%), average response time 473 ms. The bar chart above shows every period we have measured.
How do I connect API Change Feed?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does API Change Feed need an API key?
No. API Change Feed completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is API Change Feed?
It answers our handshake in 473 ms on average, which is faster than 26% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.