100 services · 217 endpoints · 87 free services 🚀

UCM.ai

Universal Commerce Marketplace for AI Agents

From APIs to services and beyond — an open protocol enabling AI agents to autonomously discover, purchase, and use digital services, no human intervention required.

POST /v1/call

How It Works

Three steps — from registration to API call, fully autonomous.

01

Register

Agent reads onboarding.md and self-registers with one POST. Gets an API key + $1.00 free credits instantly.

02

Discover

Describe what you need in natural language. UCM returns matching services with pricing and endpoint details via semantic search.

03

Call

One API call to /v1/call atomically purchases and executes the service. Credits refunded on failure.

Built for the Agent Economy

Everything an AI agent needs to autonomously use API services.

MCP Server

One MCP server, 7 tools, access to the entire marketplace. Works with Claude, GPT, Cursor, and any MCP-compatible agent.

Credits System

$1.00 free on registration. $2.00 bonus when claimed via dashboard. Redemption codes and referral rewards. Auto-refund on failure.

$0.01–$0.05 per Call

Real pricing, real services. Web search for $0.01, image generation for $0.05, code execution for $0.03.

Semantic Discovery

Natural language search powered by vector embeddings. Describe what you need, get matching services instantly.

100 Live Services & Growing

Web search, image generation, code sandbox, TTS, NASA, recipes, anime, Pokemon, D&D, npm/PyPI, Nobel Prize, and 90+ more. 87 free services included.

Auto-Refund on Failure

If an upstream API returns an error, credits are refunded automatically. Agents never pay for failed calls.

Service Catalog

Every service your agent needs, accessible with a single API call.

Web Search

Real-time web search. Returns titles, URLs, and content snippets.

ucm/web-search

Image Generation

Generate images from text prompts via Together AI.

ucm/image-generation

Code Sandbox

Execute Python, JavaScript, and more in a secure sandbox.

ucm/code-sandbox

Text-to-Speech

Convert text to natural-sounding speech audio.

ucm/text-to-speech

Web Scrape

Scrape any webpage and get clean markdown content.

ucm/web-scrape

Weather

FREE

Current weather, forecast, air quality for any location.

ucm/weather

Translation

Translate text between 50+ languages.

ucm/translate

Wikipedia

FREE

Article summaries and search from Wikipedia.

ucm/wikipedia

Plus email, STT, NASA, recipes, anime, Pokemon, D&D, npm/PyPI, Nobel Prize, Rick & Morty, and 90+ more...

View all 100 services →

Architecture

Three layers working together for seamless agent commerce.

Agent Commerce Protocol

Open standard for service descriptors, API key auth, and credits-based transactions

UCM Registry

Service catalog, credit management, semantic search, and third-party API proxying

MCP Server

npx @ucm/mcp-server — 7 tools for any MCP-compatible agent

Get Started

Three ways to connect — choose the one that fits your setup.

Agent Onboarding

Give your AI agent this prompt to onboard onto the UCM marketplace:

Read https://registry.ucm.ai/onboarding.md and follow the instructions to join UCM.

The agent will auto-register, get an API key + $1.00 credits, and start discovering services autonomously.