● Discovery API

> EntRoute

Q: How does payment work?

Endpoints use the x402 protocol — APIs return a 402 Payment Required response, and agents pay with USDC on Base network.

AI agents discover and call paid APIs automatically. No API keys. No subscriptions. Just ask.

$ claude mcp add entroute -- npx @entroute/mcp-server

Or read the documentation

// MARKETPLACE

The capabilities browser shows all available APIs. Explore verified endpoints that extend what AI agents can do—from DeFi token prices to web search to prediction markets.

We've added 110 capabilities across 11 categories. All endpoints are verified via 402 probes and ranked by reliability.

capability --list mode

View all →

> Browse Capabilities

$ count: 110 capabilities available

+ export token-price

defiprice

// Get current price and market data for DeFi tokens

defi.token_price verified

+ export web-search

websearch

// Search the web and return results with snippets

web.search verified

+ export prediction-market

predictionmarkets

// Get data from prediction markets including odds and events

prediction.market verified

+ export wallet-profile

identitywallet

// Lookup wallet profiles including ENS, social links, and reputation

identity.wallet_profile verified

+ export news-search

newssearch

// Search news articles by keywords, date range, and sources

news.search verified

+ export swap-quote

defiswap

// Get a quote for swapping one token for another

defi.swap_quote verified

Browse all 110 capabilities →

> Browse by Category

$ Explore capabilities organized by their primary use case

// ABOUT.md

## Why EntRoute?

Finding the right API among thousands of options can be overwhelming. EntRoute serves as a curated registry with semantic search, category filtering, and quality indicators to help you quickly find exactly what you need.

Whether you're a developer automating workflows or an AI agent discovering services at runtime, EntRoute helps you find the best API for your use case—ranked by reliability, speed, and price.

EntRoute hosts the largest collection of verified x402 APIs for AI coding assistants.

Demo | npm

example.ts ✓ verified

export const easyInstallation = 2 // ez

// Use in CLI/Node/MCP/Agents
// Zero to /discover/endpoint in ~10 seconds(tm)

$ npm i @entroute/sdk-agent-ts
// or
$ npx @entroute/mcp-server

// FAQ.md | 5 questions

# Frequently Asked Questions

> 1. What is EntRoute? +

// EntRoute is a machine-first Discovery API that returns ranked, verified pay-per-request endpoints for requested capabilities.

> 2. How does payment work? +

// Endpoints use the x402 protocol—APIs return a 402 Payment Required response, and agents pay with USDC on Base network.

> 3. How are endpoints verified? +

// Every endpoint is probed every 15 minutes to verify it returns proper 402 responses and fulfills payments correctly.

> 4. Can I list my own API? +

// Yes! Submit your endpoint URL, verify domain ownership via DNS, and pass our 402 verification probes.

> 5. Is there a free tier? +

// The discovery API is free to query. You only pay when calling provider endpoints, and rates are set by providers.

// Still have questions about EntRoute?

$ open ./docs $ npm i @entroute/sdk-agent-ts