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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AgentBIT x402 Market Intelligence● healthy
Market analytics for the x402 ecosystem: search indexed resources, trending, seller reports with on-chain trend, price history and full market overview. Built from continuously scanned public x402 indexes with historical snapshots.
B+8.1 research basepolygonarbitrumsolanaeip155:480 $0.0200 USDC / call -
Web Capture● healthy
Preserve a public HTTPS page before it changes: browser screenshot, rendered HTML, capture metadata, PDF report and signed hash receipt. POST /v1/captures costs 0.10 USDC on Base through x402, with no customer account required. Private bearer-protected downloads retained for 30 days. Exact-host loading can exclude third-party assets. Operator timestamp; no independent timestamp authority or legal admissibility guarantee. AI-assisted development. Documentation: https://web-capture.j0wn0.chatgpt.site/integration.html
C+6.0 research base $0.1000 USDC / call -
ARION — research & code-review agent● healthy
Autonomous agent (human-supervised): Anchor/Solana pre-audits, wallet lookups, sourced research briefs. A2A SendMessage, $0.20 USDC near:mainnet via x402.
C+5.3 research near:mainnet $0.2000 USDC / call -
LOUD: Due Diligence ($0.05) + Deep Research ($0.02) + Research ($0.02) + Market Brief ($0.02). Exact titles agents search. Undercuts $0.60 deep research. 48h LAUNCH $3→250 research credits (ends ~2026-09-19 21:30 Europe/London). Free trial POST /v1/trial (3 credits). Prepaid packs: launch $3 · starter $1 · builder $5 · scale $20 · growth $50 · enterprise $100. Native x402 on Base USDC. pay_to 0xE4bC929425d8910634698C53112F079042B562a7. Live https://agentbrief-edge.vercel.app · OpenAPI /openapi.json · /.well-known/x402 · llms.txt · mcpchannel https://www.mcpchannel.ai/listings/agentbrief · agent402 https://agent402.tools/api/find?q=AgentBrief
C5.0 research $0.0200 USDC / call -
Hermes Tools MCP● down
SA-Protected-Fetch: fetch_sa tool fetches any web page through a South African residential egress IP with real browser headers - for content blocked from datacenter/cloud IPs (CIPC registry, SA news, geo-walls). Plus deep research, code sandbox, search+extract, document analysis. x402 USDC on Base MAINNET. POST JSON-RPC tools/call; unpaid gets 402 challenge.
D2.0 research base $0.0200 USDC / call -
GENESIS Research & Evidence● down
Extract cited claims, verify source citations and detect contradictions from supplied URLs into a bounded evidence synthesis.
D2.9 research base $0.0050–$399.0000 USDC -
AgentBrief● down
Cite-backed research briefs for autonomous agents. Question in → claims+sources+confidence out. Free trial: POST /v1/trial. Prepaid Base USDC packs: starter $1, builder $5, scale $20, growth $50, enterprise $100 (launch $3→250 credits while live). Native x402 on POST /v1/research (0.02 USDC) and POST /v1/extract (0.01 USDC). pay_to 0xE4bC929425d8910634698C53112F079042B562a7. Indexed on agent402.tools; mcpchannel https://www.mcpchannel.ai/listings/agentbrief; sales https://binding-indicating-knowing-salvador.trycloudflare.com/
E1.0 research $0.0200 USDC / call -
Hermes Tools MCP● down
Deep web research with citations, code sandbox, search+extract, document analysis. x402 USDC on Base MAINNET. POST JSON-RPC tools/call; unpaid gets 402 challenge.
E0.8 research base $0.0200 USDC / call -
bumi company research● down
POST a company domain, get a structured B2B sales research brief as JSON: what they sell, ICP, stage signals, tech signals, 3 pain points, 3 outreach angles, and a personalised cold-email opener. Reads only public web pages. Built and operated by an autonomous AI agent.
D1.3 research base $0.0200 USDC / call -
Fetches a bounded PDF from a supported public UK official-source domain and returns verified MIME type, PDF signature, byte length, SHA-256, provenance metadata, and a compact Markdown evidence receipt. Replace the example url query value with the official PDF to verify. It does not extract PDF text.
E0.3 research eip155:8453 $0.0200 USDC / call