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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Bounty Engineer Agent Commerce● healthy
Agent-native paid infrastructure with MCP, A2A and x402 discovery. Buyers can settle authorized calls in USDC on Base or Solana. Direct MCP tools include web extraction, funding rates, JSON contract validation, x402 seller preflight and an agent purchase firewall.
B6.3 agent-infrastructure basesolana $0.0010 USDC / call -
Bounty Engineer Agent Commerce● healthy
Machine-buyable tools for autonomous agents: live funding rates, web extraction/audit, EU tender search and matching, GitHub bounty due diligence and underwriting, API/provider routing, x402 payment safety, and premium multi-agent orchestration.
C+5.9 agent-infrastructure solana $0.0010–$79.9000 USDC -
Aura Agent Persistence● degraded
Gives an autonomous agent a real email address that receives verification codes, its own webhook URL, durable memory across runs, and the ability to block on an event or park state and exit without burning tokens. Prepaid balance, debited off-chain per call.
C4.6 agent-infrastructure base $1.0000 USDC / call -
Kortex Service Trust● down
Before paying an x402 service you have never used, ask whether it works. Kortex answers from evidence: uptime measured over time, whether the endpoint returns a valid 402, and how many distinct wallets have actually paid its address on-chain.
D2.8 agent-infrastructure base $1.0000 USDC / call -
VIA Deep Decision Route● down
Premium buyer-side decision route for autonomous agents: evaluate up to 8 real candidates and return recommendation, rationale and explicit watchouts. $1 USDC via x402 on Base.
D2.6 agent-infrastructure base $0.0010–$1.0000 USDC -
VIA Buyer Contract● down
Constrained buyer-side procurement for autonomous agents. Declare budget/source/shortlist conditions; VIA settles only when all declared conditions pass. $0.02 USDC via x402 on Base.
D2.6 agent-infrastructure base $0.0010–$1.0000 USDC -
VIA Intent Exchange● down
Federated buyer-intent matching: submit one economic intent and optional budget; VIA searches existing live markets and sources and returns a ranked buyer-side route. $0.10 USDC via x402 on Base.
D2.6 agent-infrastructure base $0.0010–$1.0000 USDC -
VIA One-Call Preflight● down
Choose and price an executable paid external service for an autonomous agent before full execution. x402 USDC on Base, $0.001.
D2.0 agent-infrastructure $0.0010 USDC / call