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 call25 priced of 279,901 matched · 18 providers · across this page only
$0.0050
Median
$0.0010$0.110
$0.0010
p25
$0.021
p75
$0.0010
low
$0.150
high

The box is the middle half of the market, $0.0010 to $0.021; 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
279,901 services matched
ActivityAgent
Any
Any
Any
x402.ochinimus.app
Crypto market data, Solana pre-trade checks, sanctions screening, papers, utilities and language tasks (OCR, translate, summarize, extract, classify, transcribe) for AI agents. Pay per call in USDC vi…
$0.0010—106Live
x402.orthogonal.com
Discover, call, and pay for the tools your agent needs: company data, the live web, and email, through one integration. $10 free credits, pay per call, no subscription.
$0.0010—107Live
x402.orthogonal.com
Discover, call, and pay for the tools your agent needs: company data, the live web, and email, through one integration. $10 free credits, pay per call, no subscription.
$0.021—103Live
x402.orthogonal.com
Discover, call, and pay for the tools your agent needs: company data, the live web, and email, through one integration. $10 free credits, pay per call, no subscription.
$0.021—101Live
x402.orthogonal.com
Generates a comprehensive scouting report for a company including news, founders, funding, media links, and historical headcount.
$0.120—102Live
x402.orthogonal.com
Search and filter companies using Elasticsearch or SQL queries. Find companies by industry, size, location, funding, and more. | ERROR: Unable to calculate price.
$0.110—102Live
$0.020—103Live
Otto AISearch
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.
$0.0030—103Live
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.
$0.0030—104Live
Otto AIInference
x402.ottoai.services
64 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base, Polygon, or Solana. Permit2-ready, SIWX for repeat access. From $0.001 per call.
$0.150—103Live
Otto AISearch
x402.ottoai.services
68 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base, Polygon, or Solana. Permit2-ready, SIWX for repeat access. From $0.001 per call.
$0.0010—106Live
x402.swaphunt.dev
Tools for crypto research and execution. Find arbitrage opportunities, track liquidity patterns.
$0.0050—105Live
x402.swaphunt.dev
Tools for crypto research and execution. Find arbitrage opportunities, track liquidity patterns.
$0.0030—106Live
x402.tbs-digital.com
TBS Digital — Studio web indépendant à Bordeaux. Applications sur mesure depuis 2019.
$0.0010—1010Live
x402.tbs-digital.com
Forward geocoding for AI agents: turn a place name or address into coordinates. Returns the best-match latitude, longitude, country and ISO country code, administrative regions (admin1/admin2), popula…
$0.0010—106Live
$0.010—103Live
x402dir.com
x402dir facilitator recommender: pick the best x402 payment facilitator by chain, token, and monthly volume. Returns ranked facilitators with fee estimates (JSON).
$0.0010—108Live
x402factory.ai
x402Factory.ai: Building blocks for the agent economy. Pay-per-use x402 endpoints on Solana and Base.
$0.0010—106Live
x402stock.xyz
Pay-per-call market and economic data API for AI agents: US stocks, ETFs and options, forex, crypto and on-chain perps, energy commodities, US and global macro (Fed, CPI, jobs, GDP, Treasury, World Ba…
$0.030—102Live
x402tap.com
20 monetized x402 APIs for AI agents — crypto, DeFi, on-chain data, prediction markets, weather, and web search. No API keys, no signup — pay per call in USDC.
$0.010—107Live
zoningverdict.com
Address-to-zoning lookup for published municipalities. Coverage: 63 municipalities in 6 states. Resolves a street address to supported municipality and, where GIS is verified, zoning district_code wit…
$0.010—108Live
138-197-15-135.sslip.io
Block number, timestamp, hash, tx count, gas used/limit and base fee for the latest (or given) block on Base, Ethereum, Arbitrum or Optimism. Deterministic, no LLM.
$0.0010—94Live
2sSearch
2s.io
Search US trademarks by wordmark text, owner name, or goods/services — the text search the USPTO offers no public API for. Pass `query` for full-text search (ranked best-match first), or `serial` / `r…
$0.0060—92Live
402.com.tr
A pay-per-call API marketplace powered by x402 and Base Builder Codes. Every payment is attributed onchain via ERC-8021.
$0.040—94Live
402.com.tr
🆕 The receipt for a Base transaction: success or reverted, block, gas used, effective gas price, the fee in wei and ETH, how many logs it emitted and which contracts emitted them. A contract deployme…
$0.0020—97Live

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. 279,901 catalog entries indexed.

Open skill.md
Show 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.