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apiwatch

by ReignVenturesversion 1.1.0i★ 0iRuns in the cloud
Registry nameio.github.ReignVentures/apiwatch

How to install

What it does

Is this model or API still safe to call? Retirement and breaking change dates, with the fix.

  • Connects Runs in the cloud
  • Account or key No key needed
  • Category Other

Install

Pick the AI app you use, then copy the settings.

Passed 5/5 checks · What you ask goes through the maker’s server (apiwatch.reignventures.co)

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude · about 2 min

No key, nothing to install · Set it up once on claude.ai or the desktop app, then use it in chat · free accounts can add 1 · on Team/Enterprise an Owner adds it

  1. Open Claude’s Connectors page

    CustomizeConnectors

    CustomizeConnectors1+ Add2https://…3Add4

  2. Click “+ Add” → “Add custom connector” and fill in these 2 fields

    Copy each value into the field with the same name in Claude, then click Continue

    Name · Nameapiwatch
    Remote MCP server URL · Addresshttps://apiwatch.reignventures.co/mcp

    Leave Authentication as Claude detected it, then click Add

  3. Turn it on in a chat

    +Connectorsapiwatch

  4. Try it

    Use apiwatch and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using apiwatch or shows a apiwatch tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with ChatGPT on business plans only

ChatGPT Business, Enterprise or Edu on the web, added by a workspace admin or owner · On Free, Plus or Pro: your ChatGPT plan cannot connect MCP yet

  1. Open ChatGPT’s add-MCP page on the web

    Plugins+Add custom MCP server

    ChatGPTPlugins1+2https://…3Create4

  2. Fill in the name and address

    Enter a name, paste the address under Connection, tick the risk warning and click Create as a plugin

    Name · Nameapiwatch
    Connection · Addresshttps://apiwatch.reignventures.co/mcp

  3. Pick apiwatch in a chat

    Start a new chat and pick apiwatch from your plugins before typing

  4. Try it

    Use apiwatch and tell me what you can do for me, then show me one thing

    ✓ If ChatGPT says it is using apiwatch or shows a apiwatch tool in the answer, you are connected

Menu names checked against OpenAI’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Claude Code · about 2 min

No key, nothing to install

  1. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  2. Paste this command and press Enter

    claude mcp add --transport http --scope user apiwatch https://apiwatch.reignventures.co/mcp

  3. Type /mcp in Claude Code

    You should see apiwatch listed as connected

  4. Try it

    Use apiwatch and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using apiwatch or shows a apiwatch tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor · about 2 min

No key, nothing to install

  1. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  2. Open the AI chat in Cursor in Agent mode

  3. Try it

    Use apiwatch and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using apiwatch or shows a apiwatch tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code · about 2 min

No key, nothing to install

  1. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  2. Open the AI chat in VS Code in Agent mode

  3. Try it

    Use apiwatch and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using apiwatch or shows a apiwatch tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

Address for apps that connect over the web

Addresshttps://apiwatch.reignventures.co/mcp

JSON settings are under “For developers” below

Stuck? Ask people who use apiwatch💬 Discussion →
For developers: Terminal commands and JSON settings

Over the web

Claude Code

claude mcp add --transport http --scope user apiwatch https://apiwatch.reignventures.co/mcp

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "apiwatch": {
      "url": "https://apiwatch.reignventures.co/mcp"
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "apiwatch": {
      "type": "http",
      "url": "https://apiwatch.reignventures.co/mcp"
    }
  }
}

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

Downloads per weeki
Not on npm/PyPI
Connection
Runs in the cloud
Transport
streamable-http
Latest versioni
1.1.0
Categoryi
Other
Published to registryi
Oct 26, 2026
Code last changedi
Nov 12, 2026
Maker
ReignVentures
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Connect over the internet in

ClaudeChatGPTGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatOpen WebUIRaycast

All apps, with pros and cons →

Related guides

Guide 85 checks before you install an MCPAbout 2 minutes each: check its page on our site and the permission request in your AI app before you say yes.4 min read

What it can do

Tool names and descriptions exactly as the server reported them on Nov 12, 2026. The maker wrote them, not us; we show them as plain text.

  • check_model

    Look up one AI model id (for example gpt-4o-2024-05-13 or claude-sonnet-4-5) in apiwatch's reviewed feed of vendor changes before you use it in code. Returns a one line answer (when it stops working, changes behavior, or its deprecation key date) and each matching record with the

  • check_identifiers

    Look up many identifiers at once before shipping code: model ids, API endpoints (/v1/assistants), MCP tool names, SDK methods or field names. For each one, a one line answer and the ids of matching records, plus the records themselves. A record scoped to some code (for example on

  • list_upcoming

    List the dated changes in apiwatch's feed from today forward, soonest first: model retirements, breaking API changes, silent behavior changes and deprecation key dates. Use it to plan migrations. Optionally limit to the next N days (default 90, max 365) or one vendor. Max 50 reco

  • search_changes

    Search apiwatch's feed of reviewed vendor changes by text: a case-insensitive match on each record's summary, vendor and signatures (the strings to look for in code). Use it when you know a product or feature name but not the exact id. Newest key date first; default 20 results, m

  • get_record

    Get one apiwatch record in full, as published: what changes, what to do, the strings to search for, ids it does not cover, where it applies, the vendor source and when it was reviewed. Use an id from another tool's result.

  • list_watched_mcp_servers

    List the public MCP servers whose tools apiwatch checks every 6 hours (tools/list only, no login, no tool calls), with each one's status (answering, needs a login, not reachable), tool count, last check and last observed change. Use it to see which servers mcp_server_changes can

  • mcp_server_changes

    Before you rely on a public MCP server's tools, ask whether apiwatch saw them change: tools removed or renamed, new required parameters, rewritten descriptions, changed safety hints. Give a watched server's slug, URL or registry name. Returns a one line answer and the confirmed c

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 13, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account ReignVentures, which owns the repo

  • ✓ Pass

    Still maintained

    Code last changed yesterday

  • ✓ Pass

    Has a licence

    Uses MIT

  • ✓ Pass

    Endpoint responds

    Responded in 80 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 7 tool descriptions and found no hidden instructions to the AI

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

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User reviews

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Compared with others in Otheri

  • More stars than 0% of the other 19407 servers in this category
  • Published to the registry more recently than 70% of the other 19407 servers in this category
  • Basic checks equal to or better than 100% of the other 19407 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is apiwatch safe?

It passed 5 of 5 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed yesterday, and the latest version (1.1.0) reached the registry 18 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT Business and above.

What can I use instead?

In the same category: World Monitor, Claude Flow, Windmill

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

World Monitor

Real-time global intelligence on conflict, markets, energy, trade, shipping and cyber. 104 tools.

by koala73Widely used★ 90.5KUpdated yesterday

Runs in the cloud✓ service owner · worldmonitor.app
Install

Claude Flow

AI orchestration with hive-mind swarms, neural networks, and 87 MCP tools for enterprise dev.

by ruvnetWidely used↓ 13.5K/wk★ 81.5KUpdated 14 months ago

Runs on your computer
Install

Windmill

Run Windmill scripts and flows and manage jobs, schedules, resources and variables.

by windmill-labsWidely used★ 18.5KUpdated yesterday

Runs in the cloud
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

apiwatch

Know when an API, model, or MCP server you depend on changes, and exactly which lines of your code it breaks.

Vendors retire models, rename MCP tools, and change API behavior on a schedule you don't control. Most of these changes are announced in a changelog nobody on your team reads. apiwatch reads them for you, and its GitHub Action points at the exact lines they land on, before the shutoff date.

  • The feed: reviewed records of breaking, silent, and deprecation changes from OpenAI, Anthropic, Google, Stripe, Twilio, Notion, Atlassian, GitHub, xAI, and more. Every record cites the vendor's own page and is rechecked daily. Browse it at [apiwatch.reignventures.co](https://apiwatch.reignventures.co) (Atom and JSON Feed included).
  • The scan: finds the call sites each change lands on in your repo. It is token aware (gpt-4 does not match gpt-4o), follows constants, reads notebooks, and separates real uses from entries in model lists.
  • The brief: for each hit, what changed, where, a suggested fix, and acceptance criteria you can hand to a coding agent.
  • The probe: baseline a live JSON endpoint or an MCP server's tools/list and get told when it drifts, no spec required.

What it caught

The feed holds 137 reviewed changes, each checked against the vendor's own page.

  • By vendor: Google 33, Stripe 30, OpenAI 26, Anthropic 17, Notion MCP 8, Notion 6, Atlassian Rovo MCP 4, GitHub MCP Server 4, xAI 4, Twilio 3, Greenhouse 1, MCP specification 1
  • By severity: breaking 100, silent 25, deprecation 12

Next dates (everything in the next 180 days):

GitHub Action

name: apiwatch

on: [push, pull_request] jobs: scan: runs-on: ubuntu-latest permissions: { contents: read, pull-requests: write } steps:

  • uses: actions/checkout@v4
  • uses: ReignVentures/apiwatch@v1 with: fail-on-breaking: "true" # fail CI when a breaking or silent change touches your code comment: "true" # keep one up to date report comment on pull requests only-changed: "true" # on PRs, gate only on the files the PR changes

Every run writes a short report to the job summary: which changes touch your code, how severe, whether the date is past or coming, and links to each location. Add SARIF upload to see hits as code scanning annotations:

      - uses: github/codeql-action/upload-sarif@v3

if: always() with: { sarif_file: apiwatch.sarif }

Tip: add a schedule: trigger (for example daily) so you hear about new changes even when nobody is pushing.

CLI

pip install git+https://github.com/ReignVentures/apiwatch

apiwatch scan . --fail-on-breaking --markdown report.md apiwatch probe docs "mcp:stdio:npx -y @modelcontextprotocol/server-everything" apiwatch probe docs mcp:https://example.com/mcp --header 'Authorization: Bearer $TOKEN' --fail-on-drift

Scans run locally with no network calls. Your code never leaves your machine or your CI runner.

To leave generated or copied files out of a scan, add a .apiwatchignore file at the repository root: one glob per line (agents/*.json), a trailing / for a directory (generated/), # for comments. Translation folders (locales/, i18n/) are skipped by default.

MCP server

AI agents can ask the feed directly while they work: does this model id or API have a published change, when, and what replaces it? One public URL, no install, no account: https://apiwatch.reignventures.co/mcp (Streamable HTTP, both the 2026-07-28 and the earlier initialize protocol eras).

claude mcp add --transport http apiwatch https://apiwatch.reignventures.co/mcp

Tools: check_model, check_identifiers, list_upcoming, search_changes, get_record. It answers only from the reviewed records the site publishes, stores nothing it is sent, and says "no record" (never "safe") for an id it doesn't know. Setup for other clients: https://apiwatch.reignventures.co/mcp-server

Two more tools, list_watched_mcp_servers and mcp_server_changes, answer from apiwatch's history of observed tool changes on some public MCP servers (https://apiwatch.reignventures.co/mcp-servers/): tools removed or renamed, new required parameters, rewritten descriptions, changed hints. They never return a server's own tool descriptions.

How records are verified

A record is published only after a reviewer that did not write it checks every field against the vendor's primary source, and an automated check confirms the quoted evidence is still on that page. The full rules are in docs/REVIEW.md. If a vendor edits or removes the page, the record comes off the site until it is reviewed again.

Found a change we missed, or a record that's wrong? Open an issue with a link to the vendor's page.

apiwatch Pro

Pro watches every repository in your GitHub organization each night, with nothing to add to your workflows, and opens an issue when a new change lands on your code. $19 per month. See how Pro works.

License

MIT. Built by Reign Ventures LLC.