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.
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x402engine● healthy
Give your AI agents 125 APIs through one payment-native integration. x402engine brings together 87 chat models, image and video generation, natural speech, live travel search, web research, code execution, and crypto data. Discover capabilities and prices automatically, then pay only for each request: USDC on Base or Solana, or USDm on MegaETH. No subscriptions or provider API keys. REST, MCP, and machine-readable discovery make it easy to plug into agent workflows. Explore the live catalog at https://x402engine.app.
A8.9 ai-ml -
TrustBoost PII Sanitizer● healthy
Sanitize PII from text before it reaches LLMs or external APIs. Detects and redacts emails, phone numbers, national IDs, API keys, private keys, financial data, and country-specific identifiers across 8 languages. Returns sanitized text, safety_score (0.0-1.0), and risk_category (CRITICAL/PRIVATE/SENSITIVE/CLEAN). Proof of Sanitization anchored on Solana for every paid request.
C+6.0 ai-ml solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $149.0000 USDC / call -
BlockRun AI Gateway● healthy
Pay-per-request gateway: LLM chat and image generation, web search, X/Twitter analytics, crypto/FX/stock/commodity and onchain market data, wallet intelligence, phone lookup/provisioning, and outbound voice calls. USDC on Solana, no API keys.
C+5.9 ai-ml solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp -
bilbop x402● down
Pay-per-call x402 APIs for agents: text summarize, Solana token briefs, mint on-chain info, human brand feedback, and Piper TTS. USDC on Solana via PayAI; no API keys.
D1.9 ai-ml solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp -
OpenAI-compatible chat completions where the prompt is encrypted client-side and the inference provider never sees plaintext. Backed by Arcium MPC attestation on Solana mainnet. Pay-per-call in USDC via x402.
D2.0 ai-ml solana -
Solvela Gateway● down
OpenAI-compatible LLM chat completions over OpenAI, Anthropic, Google, xAI, and DeepSeek models, paid per request in Solana USDC via x402 — no API key or account. Includes a smart router, exact-match cache, and trustless on-chain escrow.
D1.9 ai-ml solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp