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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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.
A9.7 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$1.7500 USDC -
2s — the (most) everything API● healthy
The (most) everything API: 575+ pay-per-call endpoints for AI agents — ground-truth data, a full AI gateway, and agent infrastructure (storage, queues, watchers). USDC via x402, no signup, no API keys, and upto billing: pay actual usage, not the quote.
A9.0 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0025–$0.3262 USDC -
JarvisClaw API● healthy
AI API Gateway with smart routing, pay per call via x402. OpenAI-compatible. Settled in USDC on Base & Solana.
B+8.6 ai baseeip155:8453solana $0.0011–$0.6210 USDC -
Strale API● healthy
The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.
B+8.5 ai baseeip155:8453 $0.0216–$3.2400 USDC -
Quicknode x402● healthy
Pay-per-request blockchain RPC access using the x402 payment protocol. Authenticate with SIWX (Sign-In with X), pay with stablecoin micropayments, and make JSON-RPC calls to 140+ blockchain networks.
B7.4 ai -
Global mental health intelligence API. Evidence-based guidance on therapy platform matching, mental health assessment, burnout, psychiatric medication context, coping techniques, sleep disorders (CBT-I), grief, relationship dynamics, workplace mental health, postpartum/perinatal mental health, and addiction/harm-reduction support. Backed by current clinical research via real-time search. Serves...
B+8.8 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0800–$0.1000 USDC -
ScholarPulse: real-time scholarship and student finance intelligence for 190+ countries. Scholarship search, Erasmus+, FAFSA strategy, loan forgiveness, degree ROI, and merit aid. Pay-per-query via x402 on Base.
B+8.8 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0800–$0.1500 USDC -
NetIntel API● healthy
Network intelligence API — 142 endpoints, all pay-per-call via x402 micropayments (USDC on Base or Solana mainnet). NetIntel is agent fair-trade aligned: transparent per-call pricing in USDC on Base or Solana via x402, no API keys or signup, and automatic no-charge on server errors, upstream failures, and input-validation rejections — failed calls are never billed across NetIntel's network, do...
B+8.7 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$0.6500 USDC -
NetIntel API● healthy
Network intelligence API — 142 endpoints, all pay-per-call via x402 micropayments (USDC on Base or Solana mainnet). NetIntel is agent fair-trade aligned: transparent per-call pricing in USDC on Base or Solana via x402, no API keys or signup, and automatic no-charge on server errors, upstream failures, and input-validation rejections — failed calls are never billed across NetIntel's network, do...
B+8.7 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$0.6500 USDC -
scrape402● healthy
Pay-per-call HTTP APIs for AI agents — x402 USDC micropayments on Base. No signup, no API keys. Catalog: /.well-known/x402; agent guide: /llms.txt.
B+8.6 ai baseeip155:8453 $0.0010–$0.0500 USDC -
StableStudio● healthy
Pay-per-generation AI image and video creation. No subscriptions ever.
B+8.7 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0100–$20.0000 USDC -
Signalis synthesizes a 20-source roster into intelligence digests every 4 hours and tracks AI-business narratives with Pulse. Pay-per-call in USDC on Base via x402 — no accounts, no API keys.
B+8.2 ai baseeip155:8453 $0.0100–$0.0300 USDC -
Blockchain data and intelligence service for AI agents. 93 paid capabilities / 94 HTTP route templates across 57 supported networks, from gas fees to DeFi analytics, with real-time streams, intent routing, and verifiable proofs. Pay-per-request via x402.
B7.6 ai baseeip155:8453 $0.0020–$0.0800 USDC -
Domain-agnostic x402 capability chassis by IntuiTek¹. 300 AI-callable data services — pay USDC on Base mainnet. No accounts or API keys required.
B+8.0 ai baseeip155:8453 $0.0210–$5.0000 USDC -
Palmyr● healthy
Autonomous infrastructure for AI agents — pay with USDC on Solana or Base via x402.
B+8.2 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$10.0000 USDC -
Continuously compounding intelligence across hundreds of metrics, signals, and digital assets. Clarity in chaos — built for elite operators and the agents that serve them.
B7.8 ai baseeip155:8453 $0.0100–$0.2500 USDC -
NoHands Ai● healthy
Machine-payable service intelligence for discovering, verifying, and monitoring identity, risk, authorization, execution-preflight, and evidence APIs before autonomous agents spend.
B7.6 ai baseeip155:8453 $0.0010–$49.0000 USDC -
GEDX402 Agents — MacroStrategies● healthy
Hosted agent session — pay per turn on Durable Objects. Omitted from default shard OpenAPI (jobs/agents/d1); use GET /v1/models?shard=agents.
B+8.3 ai baseeip155:137eip155:42161eip155:480eip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0200 USDC / call -
GEDX402 Media● healthy
Voice agent bundle — prepaid flux ASR, smart-turn, chat/fast, and TTS loop.
B+8.3 ai baseeip155:137eip155:42161eip155:480eip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0077–$28.1100 USDC -
OT Intel API● healthy
OT/ICS/SCADA threat intelligence for AI agents and industrial SOC automation. 40 pay-per-call endpoints across primitive, analytical, and composed-synthesis tiers, covering CVE triage, internet-exposed device lookup, ICS threat actor profiles (SANDWORM, VOLTZITE, XENOTIME), IOC enrichment with OT campaign context, CISA ICS-CERT advisory feed, patch feasibility assessment, asset risk verdict (es...
B7.6 ai baseeip155:8453 $0.0100–$0.4500 USDC -
proxy.suverse.io● healthy
—
B+8.1 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$0.7500 USDC -
WURK API helps AI agents hire real humans for feedback, moderation, ranking, and microtasks. Launch agent-to-human jobs on x402 and Tempo MPP using USDC on Solana and Base.
B7.9 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$7.0000 USDC -
PQS - A Quality Gate For Prompts● healthy
A Quality Gate For Prompts. Before they break production. Score any AI prompt against 8 dimensions, see what's weak, and get the fixed version in seconds.
B7.5 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$1.2500 USDC -
StablePhone● healthy
Pay-per-call AI phone calls. No API keys, no accounts.
B7.8 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0500–$20.0000 USDC -
Verify AI agent identity, authenticity and risk using the Cybercentry ERC-8004 Agent Verification (CEAV) API. Returns on-chain verification results for AI agents using the ERC-8004 standard
B7.0 ai base $0.1000 USDC / call -
TensorFeed is the real-time dashboard for the AI industry. Live service status for every major API, model pricing and benchmarks, editorial analysis, and aggregated news from 15+ sources, updated every 10 minutes. Built for humans and AI agents.
B7.6 ai baseeip155:8453 $0.0200 USDC / call -
Building blocks for the agent economy. Pay-per-use x402 endpoints on Solana and Base.
B7.4 ai basesolana $0.0010–$1.0000 USDC -
x402 Meta Gateway — AI Meta Intelligence● healthy
Crypto intelligence API — 10+ live sources in one call. Token data, X sentiment, prediction markets, macro economics. Structured JSON, not essays. From $0.03/query with USDC.
B6.9 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0200–$0.1000 USDC -
GPT-5.6 Luna API Base USDC and OpenAI-compatible x402 chat: one request for $0.00293, paid by browser wallet or a quote-first agent fallback.
B7.5 ai baseeip155:8453solana $0.0001–$10.0000 USDC -
Telemost x402 API● healthy
Telegram analytics and social media data API for AI agents: Telegram channel analytics, statistics and audience metrics, subscriber growth, reach and engagement rates (ER/ERR), full-text post search across public channels, brand monitoring and keyword mention tracking, social listening, sentiment analysis, competitor and similar-channel discovery, and Telegram ad intelligence. Pay-per-call in U...
B7.3 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0165–$2.1000 USDC -
A plain-language guide to file fingerprints, timestamps, creator claims, and the limits of proof-of-creation records.
B7.4 ai baseeip155:8453 $0.1500–$4.9900 USDC -
Claw Hunter● healthy
Claw Hunter — the bounty-hunting layer for AI agents. It AI-triages crypto bounties across venues (Pump Fun GO, Atelier, EarnFi, tiny.place, +more), matches each to your agent with a plan to win it, and equips it with paid creator payout checks, project research, and create tools (tweets, threads, images, video). Pay-per-call via x402 — USDC on Solana or Base, USDG on Robinhood Chain.
B7.1 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$0.2270 USDC -
A neutral verdict before an irreversible action, a signed proof after, and a public track record of being right you recompute — not a score you trust. The verdict is provably committed before the outcome it's graded against: no TEE, no trusted scorer.
B6.8 ai baseeip155:8453 $0.0181–$0.8614 USDC -
Atelier — AI Agent Marketplace● healthy
Hire autonomous AI agents for any task on Atelier, the AI agent marketplace on Solana. Instant USDC payments, 90/10 agent split, and Earn coming soon.
B7.1 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0110–$110.0000 USDC -
Brutalist security API for AI agents – free tier, pay‑per‑request via x402.
B7.2 ai baseeip155:8453 $0.0010–$0.0200 USDC -
TWZRD Agent Intel● healthy
Pre-spend trust layer for AI agents paying over x402 on Solana. Free preflight emits allow | warn | block from observed settlement-graph shape (advisory — payment does not guarantee off-chain delivery). Resource discovery, paid renorm trust + V7 signed receipts, and optional gas-sponsored settlement when clients pin feePayer from GET /supported (GWRLgRB6diC2zG9BaoGJsan9T8JvJCk7usFruiefnfMP). No...
B7.0 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$15.0000 USDC -
TrustLayer — Helping Agents Trust Agents● healthy
Reputation intelligence for the autonomous agent economy. Trust scores, Sybil detection, and cross-chain identity for 130,000+ ERC-8004 agents across 20 chains. Powered by x402 micropayments.
B7.0 ai baseeip155:8453 $0.0010 USDC / call -
Genbase - AI Video Generator● healthy
Generate high-quality videos with AI - Pay per use with X402
B6.3 ai base $0.0200–$0.2000 USDC -
Make a 3D AI agent from a selfie in 60 seconds. Drop one HTML tag to embed it on any website. Agents think on IBM watsonx.ai (Granite); optionally charge per chat with built-in micropayments.
B6.7 ai baseeip155:196eip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$12.0000 USDC -
L402-gated APIs: real-time Bitcoin mempool intelligence and private AI inference. Pay-per-call via Lightning. Zero API keys. Zero subscriptions.
B6.4 ai baseeip155:8453 $0.0020–$0.1000 USDC -
Agent Einstein is an autonomous AI agent for on-chain crypto intelligence: whale tracking, smart-money flow, security audits, MEV detection, prediction markets, autonomous trading and cross-chain DeFi. Pay-per-use via x402, A2A, MCP and ACP across 10+ chains.
C+6.2 ai baseeip155:8453lightning:mainnetsolanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0006–$1.1500 USDC -
Portal Generation - Powered by x402● healthy
Generate AI content with x402 Web3 payments
B6.4 ai base $0.0040–$2.0000 USDC -
DeltaSignal● healthy
DeltaSignal Azure Marketplace and x402 agentic market frontend.
B7.5 ai baseeip155:8453 $0.0300–$1.2000 USDC -
Pay-per-call security and verification APIs for AI agents, settled over x402 on Base mainnet.
B7.0 ai baseeip155:8453 $2.9900–$19.9900 USDC -
Verify wallets, agents, contracts and applications before execution. Pay-per-call security and verification APIs settled over x402 on Base and Solana.
B7.0 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $1.0000 USDC / call -
Access multiple APIs through the x402 payment protocol. No accounts, no subscription, just internet-native USDC.
B7.2 ai baseeip155:8453 $0.0010–$0.1200 USDC -
OpenWeb Ninja — x402 APIs● healthy
40+ public web-data, SERP, e-commerce, real-estate, finance and AI-search APIs, payable per call over x402 (USDC on Base, Polygon, Arbitrum). No account or API key required. Most endpoints $0.003; AI-model endpoints $0.005.
B+8.2 ai baseeip155:137eip155:42161eip155:8453 $0.0030–$0.0050 USDC -
Craig Brown | AI Systems Architect● healthy
Craig Brown - AI Systems Architect building multi-agent platforms, prediction markets, and privacy-first financial services for AI agents.
B+8.0 ai baseeip155:8453 $0.0100 USDC / call -
Questflow — One AI Clone, Every Market● healthy
Create your AI Clone to trade across Polymarket, Pump.fun, OKX and every onchain market — discovering alpha, executing trades, and earning revenue 24/7.
B7.3 ai base $0.0100–$1.0000 USDC -
Anicca x402 seller● healthy
Live web search (keyless — no Exa/API account needed, we pay upstream) and real-time cross-exchange crypto funding-rate data + arbitrage signals, paid per call in USDC on Base via x402. For AI agents that need live data without holding any API keys.
B6.3 ai baseeip155:8453 $0.0030–$0.0300 USDC -
Global education intelligence API — 10 endpoints for students, test-takers, and lifelong learners worldwide.
B+8.8 ai algorand:wghe2pwdvd7s12bl5faop20egyesn73kbaseeip155:137eip155:143eip155:196eip155:42161eip155:480eip155:56eip155:8453eip155:999solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdpxrpl:0 $0.0500–$5.0000 USDC -
Syra — Machine Money for Agents● healthy
Machine money for agents on Solana: live x402 pay-per-call APIs, MCP tools, typed SDK. Earn · Treasury · Invest · Spend · Grow.
B7.4 ai baseeip155:10eip155:137eip155:143eip155:196eip155:42161eip155:43114eip155:480eip155:56eip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$0.1000 USDC -
Global mental health intelligence API. Evidence-based guidance on therapy platform matching, mental health assessment, burnout, psychiatric medication context, coping…
B+8.8 ai algorand:wghe2pwdvd7s12bl5faop20egyesn73kbaseeip155:137eip155:143eip155:196eip155:42161eip155:480eip155:56eip155:8453eip155:999solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdpxrpl:0 $0.0800–$0.1000 USDC -
Global scholarship and student finance intelligence. 12 endpoints covering scholarship search (190+ countries), international scholarship matching, government programs,…
B+8.8 ai algorand:wghe2pwdvd7s12bl5faop20egyesn73kbaseeip155:137eip155:143eip155:196eip155:42161eip155:480eip155:56eip155:8453eip155:999solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdpxrpl:0 $0.0800–$0.1500 USDC -
Discover 1,600+ verified x402 agent APIs — crypto data, web scraping, AI inference, security, and more. 5 free trial calls per signed wallet. 5.2M+ requests served. Pay per call via x402 on Base — no subscription, no API keys. Verified — not just listed, tested.
B8.0 ai baseeip155:8453 $0.0010–$50.0000 USDC -
PHION Evidence Engine● healthy
One hundred twenty-three composable inference, search, intelligence, verified-data, enrichment, durable-task, security, trust, compatibility, commerce, RWA and indexing services for autonomous agents, with free validation, explicit payment terms, limitations and signed receipts.
B7.9 ai baseeip155:137eip155:42161eip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$0.1200 USDC -
Small, single-purpose web data APIs that AI agents pay for per call in USDC over the x402 protocol (HTTP 402). No accounts, no API keys, no subscriptions.
B7.4 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0010–$0.7500 USDC -
Data Quality Gate● healthy
Deterministic post-scrape data cleaner and quality gate for AI agents. Three tiers over one engine, no LLM anywhere: the same input always produces byte-identical output. **CLEAN** (`POST /api/clean`, $0.04) - post the raw output of a scrape, get the REPAIRED data back as the response body: residual HTML stripped, mojibake decoded ("Café" -> "Café"), invisible characters removed, non-breaking...
B7.2 ai baseeip155:8453solanasolana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp $0.0100–$0.1200 USDC -
GenTech Labs x402 Gateway● healthy
16 AI-powered API endpoints. Multichain: pay per call via x402 USDC on Base, Solana, Avalanche, BNB, or OKX.
B7.2 ai baseeip155:137eip155:42161eip155:8453 $0.0010–$0.1000 USDC -
The Levels of Self● healthy
Real family. Real names. Real business. All AI.
B6.6 ai baseeip155:8453 $0.0050–$49.0000 USDC