Agent Tools

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 API

Aggregated 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

/api/v1/stats /.well-known
Services indexed
22603
x402 APIs · MCP · agent tools
Healthy
9682
last health check < 6 h
Categories
227
crypto · agent · data · LLM …
Chains
81
base · solana · arbitrum · …

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.

  • x402watch
    ● healthy

    Wash-filtered intelligence layer for x402. 36k+ services indexed across Base, Solana, Polygon, and Arbitrum, AI-classified into 33 categories with 8-label buyer detection (organic_user, suspected_wash, self_test, developer, ai_agent, analytics_bot, exchange_user, verifier). 24h trends, anonymized case studies, daily CC0 datasets, x402-native paid API, and MCP server.

    D4.0 analytics-dashboards
  • agenteconomy.to
    ● healthy

    Real-time dashboard tracking the agentic economy across x402, ERC-8004, ERC-8183, and MPP protocols on 8 chains. Aggregated event counter, chain distribution, facilitator share, and time-series charts. Data refreshes every 6 hours.

    D4.0 analytics-dashboards
  • Demand Intel
    ● healthy

    Demand-side analytics + cross-rail supply intelligence for the x402 ecosystem. Cross-source demand signal aggregation across 32+ community, builder, content, financial, and jobs sources, weighted by family-count agreement and filtered by query-intent classification. Builder Intel deduplicates builders across CDP Bazaar, Agentic Market, and MPP via `provider_key`. `unified_supply` SQL view spans facilitators. Pulse dashboard with KPI rail, Signal Pipeline visualizer, and AI Executive Summary. Free partner preview, no payment required during preview phase.

    D4.0 analytics-dashboards
  • SmartFlow Observatory
    ● healthy

    Public observatory for the x402 endpoint network on Base. Canary probes, settlement tracing, weekly Atlas drill-downs. 22,251 endpoints catalogued. Companion to the [Mapper API](https://api.smartflowproai.com) and [Weekly Intel](https://smartflowproai.substack.com).

    D4.0 analytics-dashboards
  • Dune Analytics x402
    ● degraded

    Comprehensive on-chain metrics and visualizations including real-time transaction volumes, chain-by-chain analytics, facilitator comparison data, and revenue/fee metrics.

    D1.8 analytics-dashboards
  • CoinGecko x402 Category
    ● down

    Token tracking and market data featuring $180M+ tracked market cap, price charts, trading volumes, and ecosystem token listings.

    E0.0 analytics-dashboards