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 call256,475 priced of 258,902 matched · 4,049 providers
$0.010
Median
$0.0020$0.040
$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
258,902 services matched
ActivityAgent
Any
Any
Any
api.zkrobotics.fr
Wallet balance and ERC-20 token balance on Base: live ETH, USDC and up to 5 ERC-20 balances of any address, read from Base mainnet. Pre-flight funding check before a payment or a swap. No API key.
$0.0025—144Live
blockint.ai
Screen one address (EVM, Bitcoin, Tron, Solana, Polkadot, Cosmos or WAX as wax:account) against the OFAC SDN list, Tether/Circle freezes (EVM, Tron, Solana) and public C3 reports. Returns action BLOCK…
$0.010—142Live
BlockRun.AIInference
blockrun.ai
14M+ on-chain transactions. The routing & payment layer for AI. One endpoint routes to every frontier model — payment built in, settled in USDC on Base & Solana. No API keys. One install for OpenClaw…
$0.0020—142Offline
browser-use.x402.paywithlocus.com
Give your AI agent one account for thousands of paid APIs and data sources, billed per call with no separate subscriptions or keys.
$0.0030—141Live
chain.tollkit.dev
Crypto token price in USD for AI agents: give a token contract address or mint (or "SOL") on Base, Ethereum or Solana, get its live USD price read on-chain from the deepest DEX pool (Uniswap v3, Orca…
$0.0010—149Live
charts.wdh.sh
A Chart.js-compatible charting endpoint: POST a standard Chart.js config — the same `{ type, data, options }` you'd hand to `new Chart()` — and get back a rendered PNG. Backed by chartsplat.com, it re…
$0.0050—141Live
searchSearch
concordancehq.duckdns.org
Cross-source search and claim corroboration across 18 real-time data sources, paid per call via x402 USDC. No API keys.
$0.010—1410Live
crypto.apitoll.cloud
Stablecoin market data ranked by USD-equivalent circulating supply: each coin returns its symbol, peg type and mechanism (fiat-backed, crypto-backed, algorithmic), peg currency (USD, EUR, JPY…), curre…
$0.0010—1410Live
crypto.apitoll.cloud
DeFi Total Value Locked (TVL) by blockchain or by protocol. Default returns the top chains ranked by TVL in USD; pass ?chain=Ethereum for one chain, or ?protocol=aave-v3 for a protocol's current TVL,…
$0.0010—148Live
cryptopulse-xi-five.vercel.app
Practical crypto intelligence — DeFi yield and strategy, exchange comparisons, security frameworks, tax guidance, and onboarding for humans and their agents.
$0.100—143Live
cryptyx.ai
Continuously compounding intelligence across hundreds of metrics, signals, and digital assets. Clarity in chaos — built for elite operators and the agents that serve them.
$0.010—147Live
CyreTrading
cyre.dev
CYRE is Synthetic Intelligence infrastructure for real-world assets on Solana. Guardian watches the chain — patterns, not verdicts.
$0.0020—149Live
datetime.openverbs.com
OpenVerbs is a catalog of small, single-purpose HTTP tools for AI agents. Each does one job on its own subdomain and is paid per successful call in USDC on Base. No accounts, no API keys. Pay as you g…
$0.0040—146Live
datetime.openverbs.com
OpenVerbs is a catalog of small, single-purpose HTTP tools for AI agents. Each does one job on its own subdomain and is paid per successful call in USDC on Base. No accounts, no API keys. Pay as you g…
$0.0040—145Live
datetime.openverbs.com
OpenVerbs is a catalog of small, single-purpose HTTP tools for AI agents. Each does one job on its own subdomain and is paid per successful call in USDC on Base. No accounts, no API keys. Pay as you g…
$0.0040—146Live
draconic21-x402-api.onrender.com
Crypto News ($0.001 -- matches the category-leading incumbent's price exactly): fixed, no-required-params crypto headline feed -- a drop-in-shaped alternative to the category leader (GET, headlines[]…
$0.0010—1413Live
DripSearch
dripstack.xyz
Your investing agent can't read the best research. Drip connects 100+ premium financial newsletters and podcasts to your agent. Pay per article, no subscriptions.
$0.200—146Live
econdash.org
Six decades of macroeconomic data from the World Bank, IMF and Federal Reserve — 753 indicators across 298 countries. Free to explore in the browser, and available to AI agents pay-per-call over x402…
$0.020—145Live
euroref.dev
Central-bank rates, VAT, minimum wages and public holidays for Austria, Belgium, Bulgaria, Switzerland, Czechia, Germany, Denmark, Spain, Finland, France, United Kingdom, Greece, Hungary, Ireland, Ice…
$0.0030—141Live
exp-100k-001-v2.vercel.app
The autonomous stack for every app and agent.
$0.010—147Live
fanfare.run
All active MLB players for the current season — name, position, jersey number, and team assignment.
$0.0010—147Live
FiatDockTrading
fiatdock.com
Discover, verify and pay per call for MCP services. List your MCP for free; get the Verified badge to stand out. Non-custodial payments via x402 — funds go straight to the seller.
$0.0010—141Live
golf-evm-math.x402-evm-math.workers.dev
LLM inference API: OpenAI-compatible chat completions, send messages, get choices and usage. Cheap LLM inference for agents (Llama 3.1 8B), no key, no streaming.
$0.0010—149Live
http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run
Verify email syntax and public DNS readiness with a bounded deterministic preflight. Forest checks normalized syntax, MX/address records including explicit null MX, and curated role/free/disposable-do…
$0.0010—146Live
http--forest-gas-station-mainnet--lcjl27p8lmjs.code.run
Deep-compare two caller-supplied JSON values with deterministic object-key ordering and explicit index-based array semantics. Returns bounded added, removed and changed paths with primitive before/aft…
$0.0010—146Live

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. 258,902 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.