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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 1045–1080 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.
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
hash-hmac.underscoredone.com hash-hmac.underscoredone.com
65%

Give this API any text or binary data and it instantly returns its fingerprint under whichever hash algorithms you choose — SHA-256, SHA-512, MD5, BLAKE2, CRC32, and more. It also signs data with a secret key (HMAC) and, most importantly, s…

paid API x402
$30.68 · 30d 57 tx
json-suite.underscoredone.com json-suite.underscoredone.com
65%

Every AI agent and developer runs into broken or confusing JSON constantly. This tool handles all the most common JSON headaches in one place: check if JSON is valid (with exact error location), fix near-JSON that has typos or formatting mi…

paid API x402
$30.68 · 30d 57 tx
induction.aarei.ai induction.aarei.ai
65%

Screen an entity or alias name against the OFAC SDN list. Exact match on a normalised string only (trim, collapse whitespace, NFC, casefold). Returns 503 if the list has never loaded (deny-on-error policy).

paid API x402
$0.02 · 30d 1 tx
search.gedx402.com search.gedx402.com
65%

Open-web search — one x402 POST discovers SERP candidates, ranks with BGE embeddings, optional page snippets. $0.370 USDC per request. Pseudo-Exa via headless browser + semantic rank. Agent search: web search, exa, firecrawl, serp, semantic…

paid API x402
$3.68 · 30d 298 tx
dicta-notes.com dicta-notes.com
65%

Transcribe short audio fast: POST JSON with an audio_url (voicemail, call recording, voice memo, podcast clip — up to 15 min) and get Gemini-powered transcript JSON back with speaker-labeled, timestamped segments — any spoken language, auto…

paid API x402
$1.84 · 30d 13 tx
midway.lol midway.lol
65%

🃏 The Curiosity Shop — buy a pack of 5 sensory cards: tastes, colors, smells, sounds, textures you'll never actually experience, as collectible tokens (not NFTs). Rarity-weighted, 5th card Uncommon-or-better. Complete a sense for a soulboun…

paid API x402
$0.11 · 30d 13 tx
stem.x402.press stem.x402.press
65%

Ask a multi-domain question combining chemistry, physics, and math computation.

paid API x402
$5.89 · 30d 328 tx
space.x402.press space.x402.press
65%

Multi-source AI space reasoning via DeepSeek. Accepts any natural language question about celestial events, planets, moons, asteroids, comets, meteor showers, eclipses, satellites, ISS, rocket launches, space weather, stars, or deep-sky obj…

paid API x402
$5.89 · 30d 328 tx
zk.quickai.build zk.quickai.build
65%

Quick ZK Auth v1.0.1 — Semaphore ZK wallet ownership on Base plus USDC balance attestation at snapshot block (not ZK-hidden balance in v1). ERC-8004 bundles with x402 payment binding.

paid API x402
$0.23 · 30d 10 tx
earth.x402.press earth.x402.press
65%

Multi-source AI Earth intelligence via DeepSeek. Accepts any natural language question about Earth — weather, air quality, marine conditions, earthquakes, volcanoes, species, seasons, climate, polar ice, and tides.

paid API x402
$5.89 · 30d 328 tx
mortgage-amortization.underscoredone.com mortgage-amortization.underscoredone.com
65%

Give this API a loan amount, an interest rate, and a repayment term, and it hands back the precise monthly payment plus a complete schedule showing — for every single month — how much goes to interest, how much reduces the balance, and what…

paid API x402
$30.68 · 30d 57 tx
cors-header-checker.underscoredone.com cors-header-checker.underscoredone.com
65%

Sends a real request to any URL you provide, attaches an Origin header, and reads back all six standard cross-origin permission headers the server returns. Tells you whether cross-origin requests are enabled at all, whether your specific or…

paid API x402
$30.68 · 30d 57 tx
news.x402.press news.x402.press
65%

Ask for a triangulated news report on a topic, sourced from 125+ global outlets.

paid API x402
$5.89 · 30d 328 tx
entertainment.x402.press entertainment.x402.press
65%

Multi-source AI entertainment reasoning via DeepSeek. Accepts any natural language question about movies, TV, music, games, or events.

paid API x402
$5.89 · 30d 328 tx
x402endpoint-utiwoa54hq-uc.a.run.app x402endpoint-utiwoa54hq-uc.a.run.app
65%

Get a prepaid card for use inside the United States

paid API x402
$11476.42 · 30d 356 tx
stablevoice.dev stablevoice.dev
65%

Mint a browser recording URL for a StableUpload slot. The recordee speaks optional suggestedText; StableVoice transcodes the audio to MP3 and uploads it to the slot. Use the slot publicUrl as /api/speech referenceAudioUrl. Pass uploadUrlExp…

paid API x402
$0.68 · 30d 26 tx
stackbill.app stackbill.app
65%

Generate a finished, professional invoice PDF from JSON — recipient and line items in, a ready-to-send application/pdf out. Layouts: standard, legal, creative. Totals and tax are computed server-side so the numbers always add up. First paym…

paid API x402
$1.84 · 30d 13 tx
api.veritylayer.dev api.veritylayer.dev
65%

Fact-check a claim before your agent acts on, repeats, or ships it — verify a claim, is this true, catch hallucinations. Independent, fail-closed verification for AI agents: a verdict with calibrated 0-1 confidence, reasoning, and web-sourc…

paid API x402
$1.03 · 30d 14 tx
x402-market.kore-app.workers.dev x402-market.kore-app.workers.dev
65%

Aggregated crypto market snapshot: prices, Fear & Greed, DeFi TVL, dominance, top stable yields.

paid API x402
$0.37 · 30d 37 tx
vn-gold-fx-x402-production.up.railway.app vn-gold-fx-x402-production.up.railway.app
65%

World gold spot price XAU/USD in real time (delayed quote), plus conversion to VND per luong (Vietnamese tael, 37.5g) and per gram. Clean JSON for portfolio trackers, commodity bots and price alert agents.

paid API x402
$0.11 · 30d 21 tx
polynews.news polynews.news
65%

Grok-synthesized consensus forecast for candidate/party WINNER election markets (US and international). Blends live Polymarket odds (ground truth) with a polling average Grok synthesizes from multiple sources via web_search; returns per-can…

paid API x402
$6.90 · 30d 173 tx
api.xona-agent.com api.xona-agent.com
65%

Extract structured persona from X (Twitter) username. Analyzes posts, profile, and communication style to generate persona, style profile, content patterns, and avatar prompt. (Base Mainnet)

paid API x402
$4.09 · 30d 100 tx