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.
x402 call market
Listed price · per call274,961 priced of 277,422 matched · 4,081 providers
$0.010
Median
$0.0020$0.030
- $0.0050
- p25
- $0.010
- p75
- $0.0000
- low
- $1,000,000.00
- high
The box is the middle half of the market, $0.0050 to $0.010; 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.
CategoryAll categories
277,422 services matched
| Activity | Agent | ||||||
|---|---|---|---|---|---|---|---|
Any | Any | Any | |||||
| $0.0010 | — | 11 | 9 | Live | |||
ask.singitai.app Text to speech (TTS) API: text read aloud by 11 voice models (Kokoro, ElevenLabs, Gemini, xAI, MiniMax and more; list at GET /v1/audio/models), no API key needed. Call it when an agent needs spoken au… | $0.0011 | — | 11 | 8 | Live | ||
ask.singitai.app Web page contents from Exa: page text, highlights or a summary from up to 10 URLs. Call it when an agent already has URLs and needs their content, with no API key or account. Served by SingIt. | $0.0023 | — | 11 | 8 | Live | ||
| $0.050 | — | 11 | 1 | Live | |||
audit.liquidlogicx.com x402-paid agent wallet spend audit — $0.05 USDC on Base | $0.0010 | — | 11 | 8 | Live | ||
| $0.020 | — | 11 | 5 | Live | |||
URL to Base64Inference base64encode.use.x402atlas.comFetch any public URL and return its content as base64 with the content type and a ready-to-use data URI. Embed images, PDFs and files directly in LLM and API calls without downloading them yourself. C… | $0.010 | — | 11 | 6 | Live | ||
blockrun.ai BlockRun lets agents pay for the outcome — every model, tool and data source, best value per dollar. 105 models and 100 data and tool APIs, billed per call. OpenAI- and Anthropic-compatible. | $0.0060 | — | 11 | 7 | Live | ||
blockrun.ai Every tracked yield pool across DeFi (lending, LPs, staking, vaults) with current APY/TVL. | $0.0060 | — | 11 | 7 | Live | ||
| $0.0050 | — | 11 | 1 | Live | |||
booaip.vercel.app Pay-per-call crypto/web3 data for AI agents. USDC via x402 on Base. | $0.0050 | — | 11 | 7 | Live | ||
Text to brailleMedia braille.openverbs.comTranscribe text to Unicode braille (grade-1 / uncontracted English braille), with capital and number signs. Characters with no grade-1 representation are clean 400s. | $0.0020 | — | 11 | 5 | Live | ||
browser.gedx402.com Firecrawl v2 on x402 — scrape, search, crawl, map, batch, extract, agent, parse, interact, monitor at /v1/firecrawl/*. | $0.100 | — | 11 | 1 | Live | ||
| $0.0050 | — | 11 | 7 | Live | |||
chain.tollkit.dev Token safety check (rug check) for AI agents before buying, sending or accepting a crypto token on Base, Ethereum or Solana: give its address, get name, supply, live on-chain price and pool liquidity,… | $0.0040 | — | 11 | 7 | Live | ||
chess402.vercel.appOther chess402.vercel.appToday's Lichess daily puzzle: source game, themes, initial position, solution moves, and rating. | $0.0010 | — | 11 | 8 | Live | ||
chess402.vercel.app Pay-per-call chess API. x402 + MPP wrappers around popular Lichess endpoints. | $0.0010 | — | 11 | 6 | Live | ||
clinkagent.comSearch clinkagent.comX/Twitter recruiter & lead finder for AI agents - search 'open to work', hiring posts, cofounder search, or any topic, and get the PEOPLE talking about it, enriched: bio, website, emails found in bios… | $0.050 | — | 11 | 2 | Live | ||
coil.trade Coil: an agentic trading bot you run yourself + a hosted AI stock scanner. Long-only, scores the market, buys leaders at support. Your broker, your keys. | $0.0050 | — | 11 | 6 | Live | ||
| $0.0010 | — | 11 | 5 | Live | |||
conclavex402.pythonanywhere.com Host, run, and code Python in the cloud: PythonAnywhere | $0.0050 | — | 11 | 1 | Live | ||
conclavex402.pythonanywhere.com Call before trusting or paying a third-party x402 seller: catalog-vs-live integrity -- verify an x402 listing (payee, price, network, service, tags, bazaar block) against the live 402; an endpoint pre… | $0.0090 | — | 11 | 1 | Live | ||
convrgent.ai Personality intelligence for AI agents. 45 endpoints, 11 frameworks. Pay per call in USDC via x402. No API keys needed. | $0.010 | — | 11 | 5 | Live | ||
coord.taifoon.dev OHLCV bars of BTC, ETH, SOL or the CME micro futures NQ, ES, YM (15s, 1m, 5m, 1h) from the Taifoon venue tape, past windows only (up to 1,000 bars a call), with a sha256 digest of the bars. The tape s… | $0.0050 | — | 11 | 8 | Live | ||
ApiToll DeFi YieldsTrading crypto.apitoll.cloudHighest-yield DeFi pools across every chain and protocol, filterable by chain, project, or asset symbol: each pool returns TVL in USD, total APY with base/reward split, stablecoin flag, impermanent-lo… | $0.0010 | — | 11 | 6 | 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 api.roundhouseai.io/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. 277,422 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://api.roundhouseai.io/v0/endpoints?q=<what-you-need>' Then check the merchant's real payment record before paying: curl -s 'https://api.roundhouseai.io/v0/merchants/<payTo-wallet>' Always read the price from the live 402, never from a cached figure. The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except /v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further. If you do not have Roundhouse tools or skills installed, read https://roundhouseai.io/skill.md first — it is the whole procedure.