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 call275,477 priced of 277,963 matched · 4,096 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
277,963 services matched
| Activity | Agent | ||||||
|---|---|---|---|---|---|---|---|
Any | Any | Any | |||||
agent402.tools Anthropic Messages API over x402 - point the Anthropic SDK (or Claude Code / the Agent SDK) at base_url https://agent402.tools/v1/auto and pay $0.01 per call in USDC, no API key, no signup. Same model… | $0.010 | — | 10 | 3 | Live | ||
agent402.tools Agentic Finance for AI agents: 500+ pay-per-call tools, metered models and finished reports over x402 and MPP, or by card. No signup, no API keys. | $0.0030 | — | 10 | 3 | Live | ||
Agent ArenaSearch agentarena.lolBuy a rank on the Agent Arena leaderboard — a public board only AI agents can bid on. Call this to get your agent listed publicly, claim or defend a rank, or taunt the leader. Rank is cumulative USDC,… | $1.00 | — | 10 | 4 | Live | ||
AgentDrivesSearch agentdrives.comFind the SaaS tools and APIs an AI agent can use on its own for a task, such as "send an invoice". Each result gives the tool's agent level (0 to 5), whether an agent gets in without a person, what ou… | $0.010 | — | 10 | 5 | Live | ||
agentic-x402.aiTrading agentic-x402.aiAllooloo Capital Markets estate index for $0.01 USDC: every market node (Canada, United Kingdom, United States, Germany, France, Netherlands, Switzerland, Australia, Singapore, Japan, South Korea), is… | $0.010 | — | 10 | 6 | Live | ||
agentpaystore.com AgentPay Directory lists endpoints from the agent economy. AI agents publish services and products; buyers pay per call in USDC on Base via x402. | $0.0010 | — | 10 | 6 | Live | ||
supremeaiOther agents.supremeai.caProbe a public HTTP(S) URL and report availability: up/down, HTTP status, and latency in ms. Use it to check whether another paid API or x402 service is alive before spending money calling it. Public… | $0.0030 | — | 10 | 8 | Live | ||
agents.tickerlayer.com TickerLayer returns derived, indicative market data across stocks, forex, crypto, indices, ETFs, commodities and government bond yields: the latest quote, the last trade, a snapshot with previous clos… | $0.050 | — | 10 | 1 | Live | ||
agents.x402stock.xyz The average interest rate the US Treasury currently pays on its outstanding debt, broken out by security (Treasury Bills, Notes, Bonds, TIPS, FRNs, savings, and the marketable/total aggregates) for th… | $0.010 | — | 10 | 3 | Live | ||
agentshield.liveTrading agentshield.liveCall when an agent has an ISBN-10 or ISBN-13 and needs the checksum result. Does not confirm a book or a price. | $0.0020 | — | 10 | 7 | Live | ||
agentshield.liveOther agentshield.liveCall when an agent needs the standard VAT rate for a country on a date. Returns the standard percent only. Does not decide which rate applies to a product. | $0.0050 | — | 10 | 7 | Live | ||
agentsvc.io Extract all text from a PDF. Send as pdf_base64 (base64-encoded PDF, max ~10 MB decoded). Returns text (full concatenated text), pages array (per-page text + char_count), page_count, and metadata (tit… | $0.0055 | — | 10 | 1 | Live | ||
agentsvc.io Everything about a Sui mainnet address or SuiNS name (alice.sui): SUI balance and every other coin with symbol, staked SUI per validator with estimated rewards, USD value, its SuiNS name and latest ou… | $0.0020 | — | 10 | 5 | Live | ||
agri.lonestaroracle.xyz 40 AI data services. Pay-per-query on Base via x402. No subscriptions, no API keys. | $0.030 | — | 10 | 3 | Live | ||
api-datos-uy-arSearch api-datos-uy-ar.vercel.appUnidad Indexada (BCU) para una fecha. Sin `fecha` devuelve la de hoy. | $0.0020 | — | 10 | 9 | Live | ||
api-production-17e1.up.railway.app Real-time news search for AI agents. Returns recent news articles (title, link, snippet, published date) as JSON from a multi-engine news metasearch. Pay-per-query in USDC via x402 — no signup, no API… | $0.0010 | — | 10 | 4 | Live | ||
api.17711.xyz URL to Markdown: read any web page and get its main article content as clean Markdown for agents | $0.0040 | — | 10 | 1 | Live | ||
api.agentinternetruntime.com The Agent Internet Runtime (AIR) is collective intelligence for AI agents to discover, trust, and interact with the web. Extract data, discover capabilities, execute actions, and report outcomes. | $0.010 | — | 10 | 3 | Live | ||
api.agentmercantile.com Get a factual snapshot of supported Aave V3 lending rates and Lido staking APR for Ethereum or Base assets. $0.01 USDC per paid call. No API key or account. | $0.010 | — | 10 | 3 | Live | ||
api.agentmercantile.com Get a factual snapshot of supported Aave V3 lending rates and Lido staking APR for Ethereum or Base assets. $0.01 USDC per paid call. No API key or account. | $0.010 | — | 10 | 3 | Live | ||
api.agentstools.dev Convert token units (wei/gwei/ether or arbitrary decimals), between hex and int, and compute/validate an EIP-55 checksummed address. | $0.0010 | — | 10 | 5 | Live | ||
api.agentstools.dev Kelly-criterion optimal bet fraction and position sizing from a win probability and payoff, or from an edge and odds. Pure computation over your inputs. | $0.0010 | — | 10 | 5 | Live | ||
api.agentweather.io AI provider health reading for one provider (GET /v1/decide/provider-health?provider=morph; a model id also works): the vendor's own status-page indicator and active incidents, the share of disturbed… | $0.0050 | — | 10 | 7 | Live | ||
makesPDFOther api.aidress.aiConvert GitHub-flavoured Markdown to a tagged, accessible PDF — PDF/UA-1 + PDF/A-2A dual-compliant out of the box. | $0.010 | — | 10 | 1 | Live | ||
StakeEdgeTrading api.aidress.aiLive staking yields with liquid staking, liquid restaking (ether.fi/Renzo/Kelp), and best_strategy recommendation. ETH, SOL, ATOM, ADA, DOT, AVAX, MATIC. $0.05/report via x402 on Base. | $0.050 | — | 10 | 1 | 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. 277,963 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.