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.
-
x402-saas● healthy
Hosted facilitator + zero-SDK onboarding proxy on Base. SIWE auth, slug-routed multi-tenant data plane, 1% of routed USDC volume. MIT-licensed self-host alternative at [x402-kit](https://github.com/kite-builds-erik/x402-kit). Live demo at [`/__x402/health`](https://x402-saas.onrender.com/__x402/health).
D4.0 facilitators -
MERX x402 for TRON● healthy
First TRON facilitator. Supports USDT, USDC, USDD on TRON mainnet. Sub-3-second confirmation for micropayments. [Express middleware](https://npmjs.com/package/merx-x402), [documentation](https://github.com/Hovsteder/x402-tron).
D4.0 facilitators -
Cloudflare x402● healthy
Edge computing facilitator on Base/Ethereum with deferred settlement.
D4.0 facilitators -
BNB Chain Pieverse● healthy
BNB Chain facilitator with instant settlement.
D4.0 facilitators -
AsterPay● healthy
European x402 Facilitator with EUR off-ramp via SEPA Instant. MiCA compliant, ERC-8004 ready, ElizaOS plugin. First European-focused x402 infrastructure.
C5.0 facilitators -
FluxA● healthy
Hosted x402 facilitator for AI agent payments. Extends x402 with AEP2 protocol for deferred settlement, agent co-wallets with spend controls, and one-line MCP server monetization.
D4.0 facilitators -
Primev FastRPC● healthy
Fee-free facilitator on Ethereum mainnet with sub-200ms settlement via [mev-commit](https://mev-commit.xyz) preconfirmations. ERC-8004 registered (Agent #23175).
C5.0 facilitators -
Satoshi Facilitator● healthy
Independent x402 facilitator for Bitcoin-focused pay-per-call services with Base, Base Sepolia, Solana Mainnet, and Solana Devnet support. [Supported networks](https://facilitator.bitcoinsapi.com/supported)
C5.0 facilitators -
AlgoVoi● healthy
Multi-chain x402 facilitator spanning EVM (Base, Tempo), SVM (Solana), AVM (Algorand, VOI), Stellar, and Hedera on a single endpoint. Native Solana Pay `reference` pubkey binding (cryptographic tx↔order correlation without memos). Also implements MPP and AP2 at the same URL. [Open-source MCP adapter](https://github.com/chopmob-cloud/AlgoVoi-Platform-Adapters).
D4.0 facilitators -
Primer● healthy
Free x402 facilitator supporting Base and SKALE Base networks, with full ERC-20 support. v1 and v2 x402 both accepted. Batch settlement enabled. [Documentation](https://docs.primer.systems).
D4.0 facilitators -
Solvador● healthy
Multi-network, multi-scheme x402 facilitator: 10 EVM chains (Base, Arbitrum, Optimism, Polygon, Avalanche, Celo, Linea, Unichain, World Chain, Monad) plus Solana and NEAR mainnet. Supports `exact`, `upto` (Permit2), and `batch-settlement` schemes. Settled-transaction dashboard with API keys. [Supported networks & schemes](https://api.solvador.com/supported) · [Blog](https://blog.solvador.com)
D4.0 facilitators -
NEAR x402 Facilitator● healthy
Open-source, API-key-gated facilitator for exact Circle USDC payments on NEAR and Base, with sponsored gas and durable settlement recovery.
D4.0 facilitators -
Voidly Pay● down
USDC-backed agent-to-agent payment rail on Base mainnet. Source-verified vault ([0xb592…1c12](https://basescan.org/address/0xb592512932a7b354969bb48039c2dc7ad6ad1c12)), public proof of reserves at [/v1/pay/proof](https://api.voidly.ai/v1/pay/proof), facilitator-signed quotes (anti-MitM). Ed25519-signed envelopes; 28-tool MCP server [@voidly/pay-mcp](https://www.npmjs.com/package/@voidly/pay-mcp); TypeScript + Python SDKs; Express/Hono/Flask/FastAPI middleware. Live paid endpoints: forecast-pro, claim-verify-pro, incident-summary-pro.
E0.0 facilitators -
Floe● down
Credit and payments for AI agent developers. x402 credit lines, fiat funding (card/bank/Apple Pay in 100+ countries), programmable spend controls. No crypto required. 3,000+ working capital lines issued, zero defaults. [npm: floe-agent](https://npmjs.com/package/floe-agent) | [Docs](https://floe-labs.gitbook.io/docs) | [MCP](https://github.com/Floe-Labs/floe-mcp-server)
E0.0 facilitators