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 call217,213 priced of 219,213 matched · 3,945 providers
$0.010
Median
$0.0020$0.050
- $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
219,213 services matched
| Activity | Agent | ||||||
|---|---|---|---|---|---|---|---|
Any | Any | Any | |||||
api.onesource.io 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 —… | $0.0030 | — | 139 | 136 | Live | ||
orbisapi.com Score agricultural supply chain blockchain traceability quality | $0.010 | — | 139 | 19 | Offline | ||
| $0.050 | — | 139 | 20 | Offline | |||
| $0.0050 | — | 139 | 22 | Offline | |||
| $0.0050 | — | 139 | 21 | Offline | |||
| $0.0050 | — | 139 | 22 | Offline | |||
orbisapi.com 15 common English idioms with meanings, surprising historical origins, and example sentences. | $0.0050 | — | 139 | 21 | Offline | ||
orbisapi.com Score materials database coverage for research applications | $0.0050 | — | 139 | 21 | Offline | ||
orbisapi.com Score artifact provenance documentation chain completeness | $0.0050 | — | 139 | 17 | Offline | ||
| $0.0050 | — | 139 | 21 | Offline | |||
| $0.0050 | — | 139 | 20 | Offline | |||
api.loyalspark.online Onchain loyalty protocol on Base L2. Launch B20 rewards, earn and redeem tokens, trade P2P, automate with AI agents via REST and MCP. | $0.0050 | — | 138 | 27 | Live | ||
laso.finance Convert stablecoins (USDC, USDT, DAI) to spendable prepaid cards and gift cards instantly. Works with Apple Pay & Google Pay. Multi-chain: Ethereum, Solana, Stellar, Arbitrum, Base, Polygon. | $0.0010 | — | 138 | 33 | Live | ||
| $0.0050 | — | 138 | 20 | Offline | |||
orbisapi.com Calculate predictive maintenance program ROI from data | $0.0050 | — | 138 | 20 | Offline | ||
orbisapi.com Calculate rail line passenger capacity from operations data | $0.0050 | — | 138 | 19 | Offline | ||
orbisapi.com Calculate station dwell time from boarding and alighting | $0.0050 | — | 138 | 19 | Offline | ||
orbisapi.com Calculate tailings storage volumes from production rates | $0.0050 | — | 138 | 18 | Offline | ||
api.agentstools.dev Free-text web search for AI agents: ranked title/url/snippet results fused across multiple engines (Brave, Google, DuckDuckGo, Mojeek, Startpage, Yahoo), with freshness filters (past day/week/month/ye… | $0.0030 | — | 137 | 11 | Live | ||
| $0.025 | — | 137 | 1 | Live | |||
orbisapi.com Score nuclear waste containment system integrity metrics | $0.0050 | — | 137 | 20 | Offline | ||
| $0.0050 | — | 137 | 22 | Offline | |||
orbisapi.com Score Maillard browning reaction intensity from color data | $0.0050 | — | 137 | 20 | Offline | ||
orbisapi.com Classify hiking and mtb trail difficulty from terrain data | $0.0050 | — | 137 | 17 | Offline | ||
| $0.0050 | — | 137 | 19 | Offline |
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. 219,213 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.