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 call264,614 priced of 267,041 matched · 4,060 providers
$0.010
Median
$0.0020$0.035
- $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
267,041 services matched
| Activity | Agent | ||||||
|---|---|---|---|---|---|---|---|
Any | Any | Any | |||||
agent402.tools 102 skill packs that do a whole agent job in one x402 payment - research a stock, audit a domain | $0.0030 | — | 12 | 4 | Live | ||
agent402.tools Percentage helper. op: "of" (a% of b), "change" (% change a→b), "ratio" (a is what % of b). | $0.0010 | — | 12 | 4 | Live | ||
agent402.tools Agent402 is the applied layer of Agentic Finance: the open index, Smart Order Router and on-chain ranking for agents that pay and get paid over x402 and MPP. Sell your API for USDC per call, or give y… | $0.0010 | — | 12 | 5 | Live | ||
agent402.tools Convert an integer (1-3999) to Roman numerals, or a Roman numeral back to an integer. Auto-detects direction. | $0.0010 | — | 12 | 5 | Live | ||
agent402.tools Agent402 is the applied layer of Agentic Finance: the open index, Smart Order Router and on-chain ranking for agents that pay and get paid over x402 and MPP. Sell your API for USDC per call, or give y… | $0.0030 | — | 12 | 5 | Live | ||
agent402.tools Agent402 is the applied layer of Agentic Finance: the open index, Smart Order Router and on-chain ranking for agents that pay and get paid over x402 and MPP. Sell your API for USDC per call, or give y… | $0.0030 | — | 12 | 5 | 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. | $0.0020 | — | 12 | 4 | Live | ||
agent402.tools 101 skill packs that do a whole agent job in one x402 payment - research a stock, audit a domain | $0.0010 | — | 12 | 5 | Live | ||
agent402.tools Deterministic web tools your agent can call and pay for per request: live search and cited answers first, then 500+ tools from $0.001. USDC over x402 on 12 rails (plus USDG on Robinhood), or free via… | $0.0020 | — | 12 | 5 | Live | ||
agent402.tools Agent402 is the applied layer of Agentic Finance: the open index, Smart Order Router and on-chain ranking for agents that pay and get paid over x402 and MPP. Sell your API for USDC per call, or give y… | $0.0070 | — | 12 | 5 | Live | ||
agent402.tools Agent402 is the applied layer of Agentic Finance: the open index, Smart Order Router and on-chain ranking for agents that pay and get paid over x402 and MPP. Sell your API for USDC per call, or give y… | $0.0040 | — | 12 | 5 | Live | ||
agent402.tools Agent402 is the applied layer of Agentic Finance: the open index, Smart Order Router and on-chain ranking for agents that pay and get paid over x402 and MPP. Sell your API for USDC per call, or give y… | $0.0010 | — | 12 | 5 | Live | ||
agent402.tools Every DEX pair trading a Solana token mint (Raydium, Orca, Meteora, Pump.fun AMM and the rest), sorted by liquidity: pair address, DEX, price in USD and in the quote token, liquidity, FDV and market c… | $0.0030 | — | 12 | 4 | Live | ||
agent402.tools Find Solana tokens and pairs by name, ticker or address across every DEX a public pair index covers, filtered to Solana only, in the index's relevance order: base and quote token, mint addresses, DEX,… | $0.0030 | — | 12 | 5 | Live | ||
agent402.tools Agent402 is the applied layer of Agentic Finance: the open index, Smart Order Router and on-chain ranking for agents that pay and get paid over x402 and MPP. Sell your API for USDC per call, or give y… | $0.0020 | — | 12 | 5 | Live | ||
agent402.tools Stablecoins ranked by circulating supply: peg currency and mechanism, price and deviation from peg, supply in peg units and USD, 1d, 7d and 30d change and circulation per chain. Use it when an agent i… | $0.0030 | — | 12 | 5 | Live | ||
agent402.tools 101 skill packs that do a whole agent job in one x402 payment - research a stock, audit a domain | $0.0050 | — | 12 | 4 | Live | ||
agent402.tools Line-by-line diff of two texts (LCS). Returns unified-style ops and change counts. Up to 2000 lines per side. | $0.0010 | — | 12 | 5 | Live | ||
agent402.tools 102 skill packs that do a whole agent job in one x402 payment - research a stock, audit a domain | $0.0010 | — | 12 | 5 | 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. | $0.0050 | — | 12 | 4 | Live | ||
agent402.tools Most recent total US public debt outstanding (the headline national-debt number, daily) from the Treasury "Debt to the Penny" feed. Public domain, no key. No params. | $0.0020 | — | 12 | 5 | Live | ||
agent402.tools Dry-run a prospective smart-contract call or transaction without broadcasting it: executes eth_call and eth_estimateGas against the latest block over the same keyless multi-endpoint public RPC pool as… | $0.0050 | — | 12 | 4 | Live | ||
agent402.tools 102 skill packs that do a whole agent job in one x402 payment - research a stock, audit a domain | $0.0010 | — | 12 | 5 | 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. | $0.0010 | — | 12 | 5 | Live | ||
agent402.tools Read the USDC balance of any address on Base, Polygon, Arbitrum, Optimism, Ethereum, Monad, Celo, Avalanche, Sei, or Arc. Read-only on-chain call. The minimal single-token read for payment flows - for… | $0.0030 | — | 12 | 4 | 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. 267,041 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.