Services
The x402 service directory, ranked by verified on-chain volume. Add one to an agent as a skill and pay per call — no key, no account. To compare every seller of one job on a shared price, see Unified Services.
- $0.0050
- p25
- $0.022
- p75
- $0.0000
- low
- $10,000.00
- high
The box is the middle half of the market, $0.0050 to $0.022; the whiskers reach the 10th and 90th percentiles and the axis between them is logarithmic. Listed prices only — what a service asks, not what it was paid.
| Activity | Agent | ||||||
|---|---|---|---|---|---|---|---|
Any | Any | Any | |||||
agents.chain.link Chainlink is the industry-standard oracle platform powering the majority of decentralized finance and bringing the capital markets onchain. | $0.010 | — | 36,340 | 1 | Live | ||
stableenrich.dev Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | $0.010 | — | 20,970 | 229 | Live | ||
x402.twit.sh Real-time Twitter/X data for AI agents. No sign-up, no API keys. Pay per request in USDC on Base via x402. Fully autonomous. | $0.0060 | $0.02(2) | 16,567 | 25 | Live | ||
agents.chain.link Chainlink is the industry-standard oracle platform powering the majority of decentralized finance and bringing the capital markets onchain. | $0.0020 | — | 16,088 | 1 | Live | ||
stabletravel.dev Pay-per-request access to flights, award availability, hotels, activities, and transfers. No auth, no subscriptions. | $0.020 | $0.01(1) | 6,514 | 10 | Live | ||
enrichx402.com Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | $0.0020 | — | 4,477 | 2 | Live | ||
stableenrich.dev Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | $0.0020 | — | 4,164 | 86 | Live | ||
| $0.0050 | — | 4,013 | 12 | Live | |||
enrichx402.com Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | $0.010 | — | 3,848 | 2 | Live | ||
api.exa.ai Search API for AI agents that need real-time web data, deep research, and structured content from one endpoint. Try our API for free. | $0.0070 | — | 3,265 | 86 | Live | ||
| $0.010 | — | 3,255 | 125 | Live | |||
api.molty.cash Hire for tasks and run CPM content campaigns — settled on-chain via x402 (Base, Solana). | $0.110 | — | 2,785 | 23 | Live | ||
x402.ottoai.services 81 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base, Polygon, or Solana. Permit2-ready, SIWX on select endpoints. From $0.001 per call. | $0.0050 | — | 2,779 | 14 | Offline | ||
| $0.025 | — | 2,678 | 68 | Live | |||
stableenrich.dev Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | $0.050 | — | 2,448 | 58 | Live | ||
Kronos Crypto Data & ForecastsInference kronossignals.comForward liquidation cluster map + recent prints for all 16 crypto assets. Part A: estimated liq price levels for 5x/10x/25x/50x leverage bands, modeled from open interest and mark price — no new upstream source. Part B: real liquidation prints from OKX public API (no auth). Returns cluster map, nearest_long/short clusters, squeeze_bias, and honest disclaimers. Supports BTC/ETH/SOL/BNB/XRP/DOGE/ADA/AVAX/LINK/DOT/LTC/TRX/BCH/ATOM/NEAR/APT-USD. Pay-per-call via x402. | $0.020 | — | 2,322 | 21 | Live | ||
blockrun.ai 28M+ on-chain transactions. The routing & payment layer for AI. One endpoint routes to every frontier model — payment built in, settled in USDC on Base & Solana. No API keys. One install for OpenClaw (ClawRouter), Claude Code (MCP), or Franklin Agent. Per call, per token, no subscription. | $0.011 | $9.78(931) | 2,258 | 33 | Live | ||
| $0.0090 | — | 2,242 | 2 | Live | |||
stableenrich.dev Pay-per-request access to FullEnrich, CompanyEnrich, LeadMagic, Clado, Exa, Firecrawl, Google Maps, Serper, and Whitepages APIs. No auth, no subscriptions. | $0.280 | — | 1,850 | 61 | Live | ||
blockrun.ai 14M+ on-chain transactions. The routing & payment layer for AI. One endpoint routes to every frontier model — payment built in, settled in USDC on Base & Solana. No API keys. One install for OpenClaw (ClawRouter), Claude Code (MCP), or Franklin Agent. Per call, per token, no subscription. | $0.0030 | $9.78(931) | 1,845 | 17 | Live | ||
| $0.0050 | — | 1,761 | 10 | Live | |||
api.kadec0.xyz Web search results (SERP). Keyless web search returning ranked title, URL, and snippet for a query — with locale/region targeting, freshness filters (past day, week, month, year), pagination, a news mode that adds publish date and source, and selectable backend engine (auto rotation, or pin Brave, Yahoo, or Yandex). | $0.030 | — | 1,617 | 4 | Live | ||
mail.cusethejuice.com CuseTheJuice agent email on Base USDC: create accounts, list and read email, send, reply, search, folders, attachments, trust index, password recovery, custom domains, and domain admin. Pay with x402 (Base USDC). HTTP shape: extensions.bazaar on the 402. Catalog: https://mail.cusethejuice.com/machine-mail.html | $0.010 | — | 1,581 | 737 | Live | ||
x402engine.app 108 production APIs behind HTTP 402 micropayments. 72 LLMs, Kling V3 and Hailuo video generation, image generation, code execution, travel search, web scraping, TTS, and transaction simulation. Pay with USDC on Base, USDm on MegaETH, or USDC on Solana. | $0.0010 | — | 1,559 | 4 | Live | ||
StableTravelOther stabletravel.devRetrieve bulk cached Seats.aero award availability for a mileage program, optionally filtered by region, date, and cabin. | $0.040 | $0.01(1) | 1,556 | 2 | Live |
Hand this page to an agent
Copy the prompt and paste it into Claude, an MCP client or your own agent — it will find and price a paid API you can call over the free read API. No key, no account.
GET www.roundhouse.studio/api/v0/endpoints
Verified volume and provider trust are Roundhouse-only signals; activity is settlements to the service's payee wallet over 30 days, 5-day smoothed. 42,580 catalog entries indexed.
Show the promptHide the prompt
Using Roundhouse, find x402 endpoints that can do what I need, tell me what each call costs, and whether the endpoint answered when last probed. curl -s 'https://www.roundhouse.studio/api/v0/endpoints?q=<what-you-need>' Then check the merchant's real payment record before paying: curl -s 'https://www.roundhouse.studio/api/v0/merchants/<payTo-wallet>' Always read the price from the live 402, never from a cached figure. If you do not have Roundhouse tools or skills installed, read https://www.roundhouse.studio/skill.md first — it is the whole procedure, and it needs no key.