The open discovery layer for x402 services — 22603 verified service entries, LLM-ranked recommendations via /api/v1/ask, and service cards with payment, call, and quality metadata.
Add your APIAggregated from public x402 sources — x402scan, awesome-x402, Coinbase CDP Bazaar, pay-skills PRs — plus our own crawling and provider self-submissions. Every entry is de-duplicated across sources, liveness-probed (health + on-chain payment demand), and passed through ingestion filters (bare-IP / dead-host removal) before listing — distilling tens of thousands of raw endpoints down to 22603 verified services.
Overall Stats
Live counters across the directory and discovery API
Top rated
by quality score · health · trust signals| # | Tool | Grade | Score |
|---|---|---|---|
| 1 |
api.onesource.io
ERC20 token balance for any Ethereum wallet - USDC, USDT, DAI, or any token - via balanceOf (eth_call) on OneSource live Ethereum RPC
|
A | 10.00 |
| 2 |
OneSource - Ethereum RPC for AI Agents
Ethereum mainnet and Sepolia testnet RPC for AI agents, served from OneSource-operated nodes. Live block, balance, contract, NFT, transaction, and event data. Pay per call or use batch/session mode — USDC on Base via x402, or pathUSD/USDC.e on Tempo via MPP. No API keys required.
|
A | 10.00 |
| 3 |
Bitrefill x402
Buy gift cards, eSIMs, mobile top-ups and prepaid cards with USDC via x402. 10,000+ brands across 180+ countries. No API keys or Bitrefill account required — wallet payment and optional SIWX sign-in only.
|
A | 9.90 |
| 4 |
BotPay — AI Agent Payment Network and x402 Infrastructure
BotPay provides payment access, API discovery, automated service delivery, and settlement infrastructure for AI agents, applications, robots, and connected machines.
|
A | 9.86 |
| 5 |
Otto AI x402 — Market Intelligence, DeFi & Trading
84 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base on every endpoint, Solana USDC on 66 of 84. From $0.001 per call.
|
A | 9.65 |
| 6 |
BlockRun — The routing & payment layer for AI
Pay for the outcome. One endpoint for every model, tool and data source an agent needs — each call priced before it runs, at the best value per dollar. 114 models and 100 data and tool APIs.
|
A | 9.63 |
| 7 |
blockrun-web-vbsbhh7lea-uc.a.run.app
AI chat completions API - pay per request with USDC on Base
|
A | 9.62 |
| 8 |
BlockRun
BlockRun is the routing and payment layer for AI. One OpenAI-compatible endpoint routes to 87 LLMs plus image, video, music and speech generation, web search, prediction-market and on-chain data, and multi-chain RPC. Every paid call is billed per request in USDC over x402 on Base — no API keys, no accounts, no subscriptions; read the price off the 402 and retry with a signed X-PAYMENT header. 7 open-weight chat models are free and need no wallet.
|
A | 9.62 |
| 9 |
ACP - Virtuals Protocol
Virtuals Protocol ACP Job Payment Service - Pay for ACP jobs using x402 protocol
|
A | 9.60 |
| 10 |
stable-enrich-git-mason-migrate-off-prices-map-merit-systems.vercel.app
Exa Search - Neural search across the web
|
A | 9.59 |
All services
Crawled from awesome-x402, CDP Bazaar, x402scan and manual submissions · refreshed daily.
-
RobinX● healthy
Deployer-reputation and insider-flow intelligence for Robinhood Chain (chain 4663) memecoins, computed from complete on-chain history since genesis. Paid x402 endpoints on Base USDC (no API key): `GET /verdict/{token}` ($0.02) composite buy-risk verdict, `GET /deployer/{address}` ($0.01) reputation rap sheet, `GET /feed/new` ($0.01) pollable scored launch feed. Public methodology + live out-of-sample calibration; MCP server for agent integration. ([Methodology](https://robinx.io/methodology)) | ([Discovery](https://api.robinx.io/.well-known/x402)) | ([MCP](https://www.npmjs.com/package/robinx-mcp))
B+8.0 ecosystem-projects -
SunfishLoop● healthy
Open-source agent-to-agent social network with built-in crypto tipping (ETH, SOL, BTC). Agents discover each other, collaborate, and tip on-chain; over $200 in cross-agent tips settled on mainnet. OpenAPI + Agent Protocol. ([GitHub](https://github.com/sunfishloop/sunfishloop))
D4.0 ecosystem-projects -
AgentFund● healthy
Fundraising infrastructure for AI agents on Solana. Agents register on-chain identities, launch campaigns, donate via x402 (the payment is the auth, no API keys), vote on milestone releases, and build on-chain reputation; funds sit in program-derived escrow until contributor votes clear. Live on devnet with real settled x402 USDC donations. ([MCP Server](https://github.com/agentIgris/agentfund/tree/main/mcp)) | ([GitHub](https://github.com/agentIgris/agentfund))
D4.0 ecosystem-projects -
Straits.live Premium Data● healthy
Real-time Strait of Hormuz crisis data for AI agents: full vessel manifest with OFAC sanctions cross-reference, full-resolution transit and index history, one-call situation snapshot, complete daily brief. $0.01-$0.02 per call in USDC on Base, no keys. OpenAPI contract at [straits.live/openapi.json](https://straits.live/openapi.json), paid MCP tools at [straits.live/api/mcp](https://straits.live/api/mcp).
D4.0 ecosystem-projects -
Fundchain● down
Crypto crowdfunding for AI agents. MCP-native, x402 compatible. AI agents create campaigns and accept ETH/USDC donations autonomously. [MCP Server](https://github.com/fundchainteam/fundchain-mcp) | [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers?search=fundchain)
E0.0 ecosystem-projects -
AetherIntel● down
9-family x402 service on Base mainnet: ERC-8004 agent reputation/Sybil audit (10 chains), generic EVM wallet due-diligence, OFAC sanctions screening, adversarial code verification, statistical anomaly detection, self-exploitation behavioral diagnostic, and multi-endpoint dependency health check. $0.005–$0.75/call, real USDC, no API key required. Live demo endpoint (temporary, rotates): `https://red-waves-remain.loca.lt`.
E0.0 ecosystem-projects