Roundhouse

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.

Compare by capability
x402 call market
Listed price · per call271,659 priced of 274,120 matched · 4,078 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
274,120 services matched
ActivityAgent
Any
Any
Any
Text-to-speech (lite)Media
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—114Live
Transaction receipt (decodedTrading
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—114Live
US unemployment rate (UNRATE)Data
agent402.tools
101 skill packs that do a whole agent job in one x402 payment - research a stock, audit a domain
$0.0050—114Live
URL unshortenerOther
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—114Live
URL parseOther
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—114Live
User-agent parseInfra
agent402.tools
102 skill packs that do a whole agent job in one x402 payment - research a stock, audit a domain
$0.0010—114Live
UUID validateOther
agent402.tools
102 skill packs that do a whole agent job in one x402 payment - research a stock, audit a domain
$0.0010—114Live
Vehicle recalls (NHTSA)Inference
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…
$0.0040—114Live
Wallet token balances (indexed)Trading
agent402.tools
102 skill packs that do a whole agent job in one x402 payment - research a stock, audit a domain
$0.0020—113Live
Air quality (global)Trading
agent402.tools
The open x402 index — discovery, routing, and on-chain ranking for the agent payments economy. /api/find resolves tasks to tools, /api/route is the neutral Smart Order Router across every x402 seller,…
$0.0020—114Live
Domain WHOIS (RDAP)Data
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—114Live
Search World Bank indicatorsSearch
agent402.tools
Search the World Bank indicator catalog (1,400+ indicators across GDP, demographics, health, environment, education, etc.) by keyword. Returns indicator codes you can feed into /api/world-bank-indicat…
$0.0020—114Live
x402 quoteTrading
agent402.tools
Probe any URL and decode its HTTP 402 payment requirements (price, asset, network, pay-to) into clean JSON - what an agent needs to decide whether/how to pay. Read-only; does not pay.
$0.0020—114Live
Check an x402 seller's trustTrading
agent402.tools
102 skill packs that do a whole agent job in one x402 payment - research a stock, audit a domain
$0.0050—114Live
YAML to JSONOther
agent402.tools
Parse YAML into JSON (safe schema - no code execution).
$0.0010—114Live
Responses auto (OpenAIInference
agent402.tools
OpenAI Responses API over x402 - point the OpenAI SDK's responses.create() (or the OpenAI Agents SDK) at base_url https://agent402.tools/v1/auto and pay $0.01 per call in USDC, no API key, no signup.…
$0.010—114Live
Fast image generationInference
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…
$0.020—114Live
Pro image generationInference
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…
$0.050—115Live
AgentForgeInfra
agentforge-taupe.vercel.app
The autonomous stack for every app and agent.
$0.0010—1110Live
agentkit-x402-buy.netlify.appTrading
agentkit-x402-buy.netlify.app
x402 pay-per-call DeFi and crypto intel for AI agents. USDC on Base. No API keys.
$0.0010—1110Live
BytemineTrading
agents.bytemine.ai
Bytemine is a B2B data platform for sales and go to market teams. It covers contact and company search across 135M professionals and 10M companies, contact and company enrichment, LinkedIn profile sea…
$0.010—112Live
DDG Agent-Payable ServicesOther
agents.daedalusdevelopmentgroup.com
DDG agent-payable service request
$0.0010—111Live
agentshield.liveOther
agentshield.live
Call when an agent needs the minor-unit count for an ISO currency code. Not an exchange rate.
$0.0010—118Live
agentshield.liveTrading
agentshield.live
Call when an agent has an 8 or 13 digit barcode and needs the checksum result and the GS1 prefix country. Does not confirm the product or a price.
$0.0020—117Live
agentshield.liveOther
agentshield.live
Call when an agent needs to know whether a calendar date is a public holiday in a country. Returns yes or no and the holiday name.
$0.0050—118Live

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. 274,120 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.