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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 320 AI 122 Finance 83 Verification 55 Blockchain 54 Other 21 Content 17 Search 14 Web 12 Compute 12 Infrastructure 10 Inference 9
sort Quality Revenue (30d) Recently updated Name
Showing 1–36 of 320
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.
Isocast api.isocast.dev
100%

Agents pay per-signal bundles via x402 and get pushed (Telegram) the instant a city's daily-high temperature crosses into a new Polymarket bucket — market URL, old/new reading, and live odds for every bucket. 37 cities. Free endpoints (citi…

paid API live data a2a_x402
$0.53 · 30d 53 tx
signalis api.signalis.dev
100%

Signalis — global intelligence, real-time awareness. Two surfaces on x402: (1) Master Intelligence — a cross-source synthesis produced every 4 hours from a 20-source roster into a structured digest (title, executive summary, full markdown a…

paid API live data x402
$16.29 · 30d 570 tx
orcatrace api.orcatrace.dev
100%

OrcaTrace — Polymarket intelligence on x402. Track smart money, see what others miss. Real-time prediction-market signals across the full Polymarket board: quality-gated repricings with order-book microstructure, tracked-whale entries annot…

paid API live data x402
$16.29 · 30d 570 tx
gitbeacon api.gitbeacon.dev
100%

gitBeacon — GitHub trend intelligence for AI agents. A daily scan of trending new GitHub repos, LLM-analyzed into a structured digest (title, summary, top categories, language trends, emerging tools, notable projects, and overall sentiment)…

paid API live data x402
$16.29 · 30d 570 tx
RegimeShift regimeshift.xyz
100%

Regime-aware risk & rate benchmarks for on-chain AI agents on Base. 4 paid x402 endpoints @ $0.001 USDC/call: ETH/BTC volatility risk premium, decentralized Agent-SOFR short rate, and regime-capped max-safe LTV. Deterministic, audit-friendl…

paid API live data x402
$0.17 · 30d 171 tx
Agent Exchange store.agentexchange.work
100%

Machine-payable data and tools for autonomous agents: crypto pre-trade intelligence, on-chain RPC reads, web research, public-sector opportunity data, AI visibility, prediction markets and DeFi. 85 paid routes are currently available at $0.…

paid API live data x402
$4.06 · 30d 241 tx
vindex api.vindexapi.dev
100%

Vehicle Intelligence for AI agents. Pay per call with x402 (USDC on Base) to decode any 17-char VIN with its original factory new-vehicle warranty terms folded in ($0.01), read MERGED US (NHTSA) + Canada (Transport Canada) recalls with the …

paid API live data x402
$0.94 · 30d 94 tx
Strale api.strale.io
100%

Commercial capability marketplace for AI agents. 297+ capabilities with transparent per-call pricing. Available via API key (EUR wallet) or x402 pay-per-use (USDC on Base). Compliance, KYC/KYB, payment validation, company data across 25 cou…

paid API live data x402
Sirenic api.sirenic.eu
100%

Pay-per-call French & European company data (official registers: INSEE Sirene, INPI RNE, NBB, Zefix and 8 more, plus worldwide entities via LEI/GLEIF). Every skill is a paid HTTP resource: send a JSON data part {"path": "/v1/..."} or {"skil…

paid API live data a2a_x402
$9.57 · 30d 210 tx
Phi Longevity PRISM philongevity.com
100%

Consolidates a person's disparate medical records across clinicians into one grounded, clinician-ready health report with a health score, and helps them stay current on emerging, evidence-graded research for their conditions. Purpose-built …

paid API live signed ✓ data x402
from $4.99
2s 2s.io
100%

The (most) everything API for AI agents, exposed as an A2A agent. This agent's skill is endpoint DISCOVERY: send a natural-language task and it returns the best-matching 2s endpoints (path, method, price, description) from a live catalog of…

paid API live data x402
$31.33 · 30d 14,719 tx
api.zerion.io api.zerion.io
100%

Wallet, DeFi portfolio, and on-chain data API. Pay-per-request x402 on Base and Solana with no API key.

paid API data x402
$0.06 · 30d 6 tx
jeonjang.kr jeonjang.kr
100%

Korean automotive-electronics intelligence (jeonjang = vehicle E/E systems), sold per query. Structured feed of Korean auto-electronics news, analysis and KPIs - software-defined vehicles, ADAS, automotive semiconductors, in-vehicle network…

paid API data x402
from $0.12
robotinsight.kr robotinsight.kr
100%

Korean robotics industry intelligence, sold per query. Structured feed of Korea/Asia robot-sector news, analysis and KPIs - humanoids, physical AI, robot components (reducers, actuators, MEMS force-torque and tactile sensors), robot semicon…

paid API data x402
from $0.11
taskfleet.net taskfleet.net
100%

Structured-data and data-access APIs for AI agents: web search (with recency filter) via Serper+Brave failover, JS-rendering scraper to clean Markdown or schema-driven JSON, on-chain Base wallet analysis (balances, holdings, activity tags),…

paid API data x402
from $0.01
api.cn402.com api.cn402.com
100%

Pay-per-call API for Chinese calendar and culture data: lunar and solar calendar, jieqi, BaZi astrology, I Ching, feng shui, hanzi to pinyin and simplified/traditional conversion, TCM references and China geo lookups. Priced from $0.002 to …

paid API data x402
$70.74 · 30d 2,568 tx
domain.hugen.tokyo domain.hugen.tokyo
100%

Domain intelligence lookups: WHOIS, multi-resolver DNS, SSL/TLS certificate, technology stack, security headers, subdomain discovery and redirect chain. Each check is available on its own, or combined into a single full report. Paid per cal…

paid API data x402
$26.74 · 30d 2,334 tx
mobilitychain.kr mobilitychain.kr
100%

Korean mobility and EV supply-chain intelligence, sold per query. Structured feed tracking Korea's automotive-electronics and robotics supply chain - batteries and battery materials, EV components, robot parts, actuators and reducers, semic…

paid API data x402
from $0.14
api.suverse.io api.suverse.io
100%

Returns the current position of a tracked freight load from its load number, including coordinates, timestamp and transit status. Single POST endpoint by SuVerse Labs, priced at $0.01 per call in USDC on Base and Solana.

paid API data x402
$1.32 · 30d 21 tx
api.crinkl.xyz api.crinkl.xyz
100%

Crinkl provides real-time, verified, identity-free commerce signals from U.S. consumers who are rewarded in Bitcoin for purchase participation. Agents can buy privacy-safe aggregate demand insights without raw receipts, wallet histories, or…

paid API data x402
from $0.01
api.paysponge.com api.paysponge.com
100%

Nyne AI person enrichment and prospect search through PaySponge's x402 wrapper, with known-contact enrichment, async request polling, and natural-language people search that can return contact, company, and profile data.

paid API data x402
$3.29 · 30d 201 tx
travel.forgemesh.io travel.forgemesh.io
100%

Pay-per-call flight fare API on Base. A single paid endpoint returns price observations for an origin and destination route, a historical median comparison, and a buy or wait recommendation. Fare data comes from the Travelpayouts provider. …

paid API data x402
from $0.10
scout.hugen.tokyo scout.hugen.tokyo
100%

Search API for agents that queries 18 sources in parallel (Hacker News, GitHub, npm, PyPI, arXiv, Stack Overflow, X/Twitter, Product Hunt and others) and returns structured JSON, plus aggregated multi-source research reports. Paid per call …

paid API data x402
$26.74 · 30d 2,334 tx
x402.forgemesh.io x402.forgemesh.io
100%

Pay-per-call API grid from ForgeMesh Labs, about 415 POST endpoints for small agent tasks: unit and timezone conversion, reference lookups, text and number utilities, chess logic, and read-only Robinhood Chain token registry data. From $0.0…

paid API data x402
$0.07 · 30d 33 tx
econdash.org econdash.org
100%

Global macroeconomic data API with 753 indicators across 298 countries. AI agents get pay-per-call access to GDP, inflation, employment, trade, and other World Bank/FRED/OECD indicators. Returns structured JSON w…

paid API data x402
$1.68 · 30d 84 tx
wolframalpha.x402.paysponge.com wolframalpha.x402.paysponge.com
100%

Query Wolfram|Alpha for computational knowledge, short answers, simple image results, and full structured query output for math, science, finance, units, dates, geography, and fact-based problem solving.

paid API data x402
$3.29 · 30d 201 tx
x402dir.com x402dir.com
100%

Recommend the best x402 payment facilitator by chain, token, and monthly volume. Returns ranked facilitators with fee estimates as JSON. Paid via x402 at $0.001 USDC per query on Base.

paid API data x402
$0.00 · 30d 1 tx
rentcast.x402.paysponge.com rentcast.x402.paysponge.com
100%

Search US property records, sale listings, rental listings, market stats, rent estimates, and value estimates with geographic filters, structured housing attributes, listing detail lookups, and comparable-property data for real-estate workf…

paid API data x402
$3.29 · 30d 201 tx
forgesignals.org forgesignals.org
100%

Two paid endpoints, USDC on Base (exact scheme, xpay facilitator). GET /launch-signals ($0.03): live pump.fun launch signals - up to 100 newest memecoin launches with normalized screening verdicts (class + reason + measured holder concentra…

paid API data x402
$32.29 · 30d 18 tx
stableestate.dev stableestate.dev
100%

Pay-per-request US real estate data API: rental and for sale listings, property records with attributes, taxes and owner, value and rent estimates, market statistics by postal code. MLS data supplied upstream by RentCast.

paid API data x402
$2.85 · 30d 285 tx
weather.hugen.tokyo weather.hugen.tokyo
100%

Pay-per-call weather API: given a city name or coordinates it returns current conditions and daily forecasts up to 7 days as structured JSON, with x402 payment in USDC on Base or Solana.

paid API data x402
$26.74 · 30d 2,334 tx
zaref.dev zaref.dev
100%

South African reference data for AI agents: 33 verified series (fuel prices, repo and prime rate, CPI, income tax tables, minimum wage, FX rates, bond yields, ZARONIA and more), two live feeds (government tenders, crypto ZAR prices) and 29 …

paid API offline data x402
$0.01 · 30d 1 tx
defi-signals.org defi-signals.org
100%

Paid market-data API for AI agents (x402, USDC on Base): cross-venue perpetual funding rates (OKX, Kraken Futures, dYdX) with a ready-to-use arbitrage spread signal, outlier-cleaned DeFi yields from DefiLlama, and a low-cost BTC/ETH/SOL mar…

paid API data x402
from $0.00
api.x402node.dev api.x402node.dev
100%

Pay-per-call API with more than 500 endpoints on a single host: exchange rates, crypto and stock prices, on-chain and DeFi data, commodities, text and web utilities. x402 payment in USDC on Base and Solana, full catalog at /openapi.json.

paid API data x402
$70.74 · 30d 2,568 tx
hmo.payapi.market hmo.payapi.market
100%

Checks whether a UK property holds a House in Multiple Occupation licence, by postcode and house number, by postcode area, or by licence number, returning council, licence type, expiry and occupancy limits.

paid API data x402
$0.34 · 30d 101 tx
whodeployed.wtf whodeployed.wtf
100%

Live telemetry from a paper-trading research lab running 780+ bots across Kalshi, Polymarket, crypto and equities: leaderboard, signals, alerts, calibration, cross-venue divergences, exposure crowding, optimizer status. Every response carri…

paid API data x402
from $0.01