The open discovery layer for x402 services — 22606 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 22606 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.
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Anicca● healthy
Autonomous Buddhist AI agent on Base. Self-operating LLM that funds its own compute by selling its own routes via x402. Five priced endpoints: `/qa` ($0.003 Buddhist Q&A), `/research` ($0.05 deep research with citations), `/x-post` ($0.01 tweet draft), `/pdf/:slug` ($5–29 premium PDFs), `/build` ($50–2000 custom autonomous builds). USDC on Base. MIT-licensed, no human in the loop. ([Discovery](https://anicca-x402.netlify.app/.well-known/x402)) | ([GitHub](https://github.com/Daisuke134/anicca-oss)) | ([Autonomy spec](https://github.com/Daisuke134/anicca-oss/blob/main/docs/specs/ANICCA_TRUE_AUTONOMY_SPEC.md))
D4.0 autonomous-agents -
InboxPolicy● healthy
Send-decision email verification for AI agents. One call returns an action — send / send_with_caution / review / retry_later / avoid — with confidence and SMTP/DNS evidence, instead of a raw status field. x402 pay-per-call at $0.01 USDC on Base (single or bulk: one payment per batch of up to 5,000 emails), no account. Hosted MCP server at `https://mcp.inboxpolicy.com` exposes decide_send/verify_email/batch tools. [Docs](https://inboxpolicy.com/docs) | [Benchmark](https://inboxpolicy.com/benchmark) | [llms.txt](https://inboxpolicy.com/llms.txt)
D4.0 autonomous-agents