codemode — Give your AI agent access to any API in ~1,000 tokens

How it works

Search. Execute. Done.

Your AI writes code to query API specs and make calls. No tool bloat, no context waste.

1

Ask your AI anything "Find the endpoint to create a GitHub repo"

2

search() — AI queries the spec Writes JS to search the preprocessed OpenAPI spec. Returns matching endpoints and schemas. No network access.

3

execute() — AI makes the call Writes JS to call the API via a sandboxed proxy. Host allowlist + auth injection. Returns the result.

	Traditional MCP	codemode
Tools per API	100–500+	2
Tokens used	100K–1M+	~1,000
Adding a new API	Build a new MCP server	Point at an OpenAPI spec

Supported APIs

56 APIs, ready to go

From GitHub to Stripe to obscure weather APIs. If it has an OpenAPI spec, codemode can run it.

Tier 1 — Core 15 APIs

GitHub

Stripe

OpenAI

Anthropic

Gmail

Google Cal

Google Drive

Sheets

Slack

Discord

Notion

Twilio

SendGrid

AWS

Cloudflare

Vercel

Supabase

Firebase

Tier 2 — Popular 12 APIs

Shopify

HubSpot

Salesforce

Jira

Linear

Airtable

Figma

Spotify

X (Twitter)

YouTube

Tier 3 — Developer Tools 10 APIs

Docker Hub

npm

PyPI

Postman

Sentry

Datadog

PagerDuty

Grafana

MongoDB Atlas

Elasticsearch

Tier 4 — Services 14 APIs

OpenWeather

NewsAPI

CoinGecko

Alpha Vantage

Unsplash

Giphy

Mapbox

Google Maps

Calendly

Zoom

Intercom

Zendesk

Mailchimp

ConvertKit

Quick start

Up and running in 30 seconds

Add to your MCP config and go. Your AI gets full API access immediately.

// ~/.claude/mcp.json
{
  "servers": {
    "github": {
      "url": "https://universal-codemode-mcp.regfric.workers.dev/mcp?api_id=github",
      "headers": { "x-api-key": "your_github_token" }
    }
  }
}

// Settings → MCP → Add server

URL:  https://universal-codemode-mcp.regfric.workers.dev/mcp?api_id=github

Header:  x-api-key: your_github_token

# Install globally
npm install -g universal-codemode-mcp

# Run with any supported API
universal-codemode-mcp serve --spec github

// Add to Claude Code as a local server
{
  "servers": {
    "github": {
      "command": "universal-codemode-mcp",
      "args": ["serve", "--spec", "github"],
      "env": { "UCMCP_AUTH_VALUE": "your_github_token" }
    }
  }
}

Your API keys never touch our servers. Credentials are injected into outbound calls and discarded immediately.

Architecture

How it fits together

A Cloudflare Worker sandboxes all code execution. Your credentials stay safe.

Give your AI agent access to any API in ~1,000 tokens.