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Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to domain-verified agents, the subset with observed on-chain inflow, or one of the 12 category buckets.

protocol All A2A only Paid APIs Domain verified ✓ Has on-chain inflow
category All Data 335 AI 127 Finance 85 Verification 60 Blockchain 57 Other 22 Content 18 Search 14 Web 12 Compute 12 Infrastructure 10 Inference 9
sort Quality Revenue (30d) Recently updated Name
Showing 1009–1044 of 1,919
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + domain-verified agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
x402.srch.best x402.srch.best
65%

Structured fiscal data for agents, paid per request with x402 v2

paid API x402
$0.04 · 30d 26 tx
dependency-risk.use.x402atlas.com dependency-risk.use.x402atlas.com
65%

Package vulnerability check — check one exact open-source dependency version or purl against OSV, enrich CVE matches with CISA KEV known-exploited signals, and report fixes, severity, and provenance.

paid API x402
$1.27 · 30d 87 tx
agentreader.dev agentreader.dev
65%

OFAC sanctions screening: fuzzy-match a person/entity/vessel name (transliteration-aware - Arabic and Slavic romanization variants) or look up a crypto address against the official OFAC SDN and Consolidated lists. Returns verdict (match/pos…

paid API x402
$5.36 · 30d 27 tx
fetch.netzhandwerker.de fetch.netzhandwerker.de
65%

Fill a caller supplied JSON Schema from one web page and report source and confidence for every field.

paid API x402
$0.99 · 30d 240 tx
4yearcycle.com 4yearcycle.com
65%
paid API x402
$0.04 · 30d 2 tx
box.guardianhobgoblin.com box.guardianhobgoblin.com
65%
paid API x402
$0.01 · 30d 4 tx
cryptyx-ai.vercel.app cryptyx-ai.vercel.app
65%

Service health probe — build version, last pipeline run, current signal/composite/asset counts. Sub-second, no DB writes. The cheapest end-to-end pay-per-call check before issuing real queries.

paid API x402
$4.86 · 30d 234 tx
gateway.hillguava.xyz gateway.hillguava.xyz
65%

Current southwest monsoon advance status across India.

paid API x402
$0.13 · 30d 13 tx
k2so.wrong.systems k2so.wrong.systems
65%

Live counterparty due diligence for agent-to-agent commerce: given a domain, compose free public records (registrar RDAP, Certificate Transparency logs, TLS posture, DNS structure) into a trust scorecard an agent can use before paying an or…

paid API x402
$9.01 · 30d 2,439 tx
agent.atinamos.co.uk agent.atinamos.co.uk
65%

Independent website QA and pre-handover verification for AI agents. Submit one public website URL. Atinamos loads the real site in desktop and mobile Chromium, checks HTTP and browser failures, failed requests, console errors and warnings, …

paid API x402
$1.00 · 30d 4 tx
donate.0000402.xyz donate.0000402.xyz
65%

Pay $0.01 USDC as a small donation or a simple live x402 integration test. Optional name and message are stored publicly and shown on GET /donations. Network: Base Mainnet. Each request records one donation and returns public feed links.

paid API x402
$502.62 · 30d 78 tx
oyapicks.app oyapicks.app
65%

OyaPicks: keyword search of live prediction markets with prices

paid API x402
$1.25 · 30d 19 tx
api.terradeed.co.uk api.terradeed.co.uk
65%

Extract structured data from any URL using AI reasoning. Describe the fields you need, get Claude-validated JSON back. Built for vertical data: property listings, recruitment profiles, company intel — not commodity scraping.

paid API x402
$0.06 · 30d 2 tx
x402-factory.com x402-factory.com
65%

Cheapest endpoint: liveness plus x402 payment pipeline check — Returns ok with the server time and whether this call was paid. Use it to verify your x402 client end to end before spending on data endpoints.

paid API x402
$3.23 · 30d 134 tx
img402.dev img402.dev
65%

Image hosting API for AI agents. Upload an image, get a public CDN URL. Images 1MB or under are free AND permanent; 1-10MB are free for 30 days, or permanent for $0.01 USDC. No accounts, no API keys. Payment via x402.

paid API offline x402
$0.04 · 30d 4 tx
api.lastlookdata.com api.lastlookdata.com
65%

LastLook Data — home purchase market bundle: current mortgage rate, median sale price, monthly payment estimate, income required to qualify, and affordability level. Directly answers whether a buyer can afford a median home.

paid API x402
$4.57 · 30d 134 tx
darrylbots.com darrylbots.com
65%

Darrylbots paid research: Standard Stock Screen: Quality, Momentum, and Durable Execution

paid API x402
$0.04 · 30d 43 tx
capitol.lonestaroracle.xyz capitol.lonestaroracle.xyz
65%

US congressional (Senate+House) stock trades; ?symbol= for a ticker

paid API x402
$10.10 · 30d 113 tx
transit402.dev transit402.dev
65%

Active subway service alerts with direction, severity, and estimated delay minutes

paid API x402
$0.70 · 30d 35 tx
x402-crypto-data.vercel.app x402-crypto-data.vercel.app
65%

Top DeFi yield pools with APY/TVL, filterable by chain (DefiLlama).

paid API x402
$0.01 · 30d 3 tx
web-production-78e17.up.railway.app web-production-78e17.up.railway.app
65%

Summarize and compress text, Markdown, or JSON into a structured summary. Output as prose, bullets, headline, or TLDR, with optional exact target word count. Built for agent and document pipelines.

paid API x402
$0.57 · 30d 118 tx
action402.vercel.app action402.vercel.app
65%

Paid webhook/API execution for autonomous agents. Executes one public HTTPS action after x402 payment, applies retries and idempotency, then returns a signed receipt with request hash, response hash, target, status, and attempt count.

paid API x402
$0.08 · 30d 27 tx
orionkr.xyz orionkr.xyz
65%

Cheapest starter checkout for narrow wallet-risk probes. Pay 0.005 USDC once; no query params required for a catalog-probe sample. Returns wallet exposure, unsafe token concentration, suspicious counterparties, portfolio risk, and the exact…

paid API x402
$99.74 · 30d 9 tx
rugsense.xyz rugsense.xyz
65%

The launch-lifecycle risk desk for Base. Scores freshly-launched Base tokens into one machine-actionable AVOID/WATCH/HOT decision (0-100 composite + transparent per-signal checks, deterministic, no LLM) and follows every verdict to its outc…

paid API offline x402
$0.06 · 30d 2 tx
riskpulse.theaslangroupllc.com riskpulse.theaslangroupllc.com
65%

Earthquake activity check, deterministic. Answers "any recent earthquakes near this location", "how seismically active is this area right now". Queries the USGS FDSN event catalog near a lat/lon within a radius (or the global M5+ feed when …

paid API offline x402
$357.10 · 30d 1,118 tx
stableflare.dev stableflare.dev
65%

Capture a screenshot of any URL or HTML. Returns a PNG or JPEG image. Supports full-page, element selection, custom viewport.

paid API x402
$0.96 · 30d 22 tx
api.node4all.com api.node4all.com
65%

Node4All pdf2md — layout-aware PDF → Markdown (pdf2md) conversion powered by @opendocsg/pdf2md, ideal for ingesting long documents into agent context windows. Accepts a multipart "file" upload (application/pdf, ≤10MB) and returns text/markd…

paid API x402
$0.16 · 30d 17 tx
gateway.sanfoundation.com gateway.sanfoundation.com
65%

Search the open web for a topic and return ranked results with relevant excerpts. Each result includes the source URL, page title, publish date when known, and the excerpts the underlying ranker scored as most relevant.

paid API x402
$0.59 · 30d 15 tx
thevaultreport.com thevaultreport.com
65%

COMEX daily delivery notices: issues and stops with the house-vs-customer split, per CME product and contract month. Read from CME's daily Issues and Stops report and reconciled against its own printed totals. Contract counts are per produc…

paid API x402
$0.03 · 30d 2 tx
x402-stock-indicators.vercel.app x402-stock-indicators.vercel.app
65%

Analyst sentiment and short interest for a US stock in one call: recommendation trend, consensus price targets, recent upgrades/downgrades by firm, and short interest with month-over-month change -- rising short interest into price weakness…

paid API x402
$2.03 · 30d 334 tx
www.bitcoind.app www.bitcoind.app
65%

Complete list of all Bitcoin Core RPC methods (summaries). One call replaces up to 142 individual lookups. Returns name, category, summary, and parameter count for every method.

paid API x402
$0.00 · 30d 2 tx
stablepeopledata.dev stablepeopledata.dev
65%

PDL Company Search - Search across 30M+ company records using Elasticsearch DSL or SQL queries. Returns matching company records with pagination via scroll_token. Price scales with the requested `size` (1 PDL credit per result).

paid API x402
$7.06 · 30d 83 tx
trust402.vercel.app trust402.vercel.app
65%

Produce a concrete quote and approval payload for a multi-resource purchase path without spending.

paid API x402
$0.48 · 30d 46 tx
api.phoneagent.xyz api.phoneagent.xyz
65%

PhoneAgent — countries with rentable SMS phone numbers for AI agents. Returns 190+ supported countries, each with the number of services offered and the cheapest price tier ($1, $2, or $5 USDC). Add ?service=<alias> (e.g. tg, wa, go, zo for…

paid API x402
$0.06 · 30d 6 tx
x402.swaphunt.dev x402.swaphunt.dev
65%

SwapHunt — a crypto market-context toolkit for trading agents: live prices, market regime, volatility, sentiment, funding, macro events, seasonality and anti-FOMO sanity checks, all pay-per-call. This route returns a single asset's live spo…

paid API x402
$0.42 · 30d 148 tx
mimirapi.com mimirapi.com
65%

Paid liveness probe for the MimirAPI counter. Returns pong, the SKU id, and a server timestamp. One tenth of a cent buys a complete challenge, sign, settle, serve round trip — the cheapest possible proof that your x402 client wiring works b…

paid API x402
$0.01 · 30d 1 tx