AINumbers MCP Apps Server

Live endpoint: https://mcp.ainumbers.co/mcp (streamable HTTP, no auth)

An MCP Apps (SEP-1865) server that renders AINumbers.co fintech tools as interactive widgets inside Claude, ChatGPT, M365 Copilot, VS Code, and any other MCP Apps host. Published in the Official MCP Registry as co.ainumbers/tools.

Tools

Fifteen flagship tools render as widgets — the actual single-file AINumbers tool, served as a text/html;profile=mcp-app resource, driven by the AIN Bridge (prefill → run → Policy Mandate export):

Plus list_ainumbers_tools — catalog search across all 420+ tools, returning deep-links; prefill-enabled tools accept #in=<base64url(JSON of {element_id: value})>[&run=1] for one-click invocation.

All 16 tools are read-only (readOnlyHint: true), no account, no auth, zero PII — inputs are processed transiently and never stored.

Connect it

• Claude: Settings → Connectors → Add custom connector → https://mcp.ainumbers.co/mcp
• Inspector: npx @modelcontextprotocol/inspector → Streamable HTTP → same URL
• Production runs on Cloudflare Workers (/healthz reports runtime: cloudflare-workers) — no cold starts.

Develop

npm install
node generate.mjs   # re-vendor tool HTML + manifests + catalog from ../repo into ./data
npm start           # http://localhost:3300/mcp  (+ /healthz) — Node/express variant (server.mjs)
npx wrangler deploy # deploy the Cloudflare Workers variant (worker.mjs)

pilot.mjs is the single source of truth for the widget tool set. After changing any pilot tool in the AINumbers repo, run node generate.mjs, commit data/, and push; run npx wrangler deploy to update production.

Docs: ainumbers.co/mcp.html (privacy, terms, support).

All tool content is client-side, deterministic, zero PII — © Post Oak Labs, CC BY 4.0. See README-SPEC.md for architecture and history.