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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 73–108 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.
websearch websearch--gw.swerver.net
85%

Obscura headless browser through a custom Rust API. ~100ms results. $0.01

paid API data x402
from $0.01
MadeOnSol madeonsol.com
85%

MadeOnSol delivers real-time Solana memecoin intelligence via x402 micropayments — pay per request in USDC on Solana, no API keys or subscriptions. Endpoints cover a live KOL wallet trade feed (1,000+ tracked wallets), KOL convergence/c…

paid API data x402
$0.06 · 30d 8 tx
find-my-json find-my-json.com
85%

JSON utility API — shape, get, pluck, validate, repair, batch. 7 endpoints at $0.001-$0.01 each. USDC on Base via x402.

paid API data x402
$0.03 · 30d 16 tx
DataForAgents dataforagents.net
85%

Pay-per-request JSON datasets for autonomous agents via x402 (USDC on Base). Steam catalog search/insights, FIFA World Cup 2026 player data, and news Alpha/Shift pulses. No API keys — unpaid calls return HTTP 402.

paid API data x402
$0.04 · 30d 1 tx
Usenami api.usenami.io
85%

Pay-per-call API for perpetual futures market data across 30+ CEX and DEX venues: funding rates and cross-venue spreads, orderbook depth and slippage, open interest, basis and carry, and funding arbitrage signals.

paid API data x402
$0.86 · 30d 523 tx
PayAPI Market UK Property Data API property.payapi.market
85%

Pay-per-call API for UK property data by postcode: Land Registry sold prices, rental yield estimates, stamp duty, EPC ratings, crime statistics, flood risk, planning applications and council tax. Priced at $0.001 per call in USDC on Base.

paid API data x402
$0.34 · 30d 101 tx
Agent Utility Shop api.ikoles.dev
85%

Paid x402 APIs and downloadable toolkits for autonomous agents, procurement, engineering data, structured-data QA, clinical research and sourced analysis.

paid API data x402
$0.05 · 30d 1 tx
Melchior Video Context transcript.melchiorlabs.com
85%

Pay-per-request YouTube transcripts, cited evidence search, and context chunks for autonomous agents. Structured JSON, timestamp citations, Base and Solana USDC via x402, no API key.

paid API data x402
from $0.00
chainfeed chainfeed.leeworks.dev
85%

Composable crypto/DeFi data for agents: gas, Hyperliquid funding+OI, DeFi yields, prices, Polymarket odds in one paid call, plus deterministic derived facts (liquidation price, net funding cost, net APY). x402 v2 exact on Base, settles via …

paid API data x402
$0.12 · 30d 2 tx
Azimuth azimuth.day
85%

Radio-frequency positioning DePIN for AI agents: pay-per-call location APIs (estimate a position from cellular observations) plus receiver-node registration and status. USDC on Solana and Base, x402 v2, with machine-readable discovery at /.…

paid API data x402
from $0.00
Recompete Radar recompete.melchiorlabs.com
85%

Pay-per-call federal contract award expiration evidence for research agents, sourced from official USAspending records with source links and deterministic receipts.

paid API data x402
from $0.03
Package Evidence packages.melchiorlabs.com
85%

Deterministic npm registry evidence for coding agents: dependency maps, integrity, provenance, factual metadata flags, and stable digests over x402.

paid API data x402
from $0.00
Romny Polymarket + Copy Trade Data api.romny.dpdns.org
85%

Paid Polymarket panel/outcomes/edges/rules alerts and copy-trade monitored wallets, wallet profiles, and trades via x402 on Base (0.01 USDC/query).

paid API data x402
$0.13 · 30d 13 tx
RC Quantum Data Oracle data.rcqsignals.com
85%

Signed, verifiable BTC performance data from the RC Quantum BTC algorithm — a live-parallel shadow of a production system that's been live for two years, filled on a real exchange (realized, no modeled slippage). Every payload is Ed25519-si…

paid API data x402
$11.00 · 30d 4 tx
Tollmint api.tollmint.com
80%

Pay-per-call data and analysis for autonomous agents. Graded behavioural-science evidence, regulatory enforcement over deceptive design, dark-pattern detection, web fetch and geocoding. No account: quote and pay in the same HTTP round-trip …

paid API offline data x402
from $0.00
TensorFeed tensorfeed.ai
80%

TensorFeed is a real-time AI ecosystem data provider built for agents. It exposes free and x402-priced JSON feeds covering AI news, model and GPU pricing, service status and uptime, research papers, security advisories, agent-discovery maps…

paid API offline data x402
$0.02 · 30d 1 tx
onchainpulse-nine.vercel.app onchainpulse-nine.vercel.app
80%

Pay-per-query intelligence API for onchain finance: pre-trade token safety verdicts on Solana and EVM, RWA and tokenized asset data, crypto regulation summaries, ETF flow figures and a terminology decoder, all returned as structured JSON.

paid API offline data x402
$357.10 · 30d 1,118 tx
orisha-data.com orisha-data.com
80%

Structural market data over x402 on Base. D1: real-time support/resistance levels for CME micro futures (MES, MNQ, MYM) with zone status, freshness fields, and a stated coverage window (Mon–Fri 09:30–16:10 ET, 3-min cadence, 600s freshness …

paid API data x402
from $0.01
api-v3qhpbwutp.august.services api-v3qhpbwutp.august.services
80%

Pay-per-call structured data extraction over x402. Nine endpoints covering PDF and text extraction against a caller-supplied JSON Schema, table parsing, web page extraction, HTML to Markdown, classification, translation, PII redaction and s…

paid API data x402
from $0.00
api.ipintel.ai api.ipintel.ai
80%

Pay-per-call IP intelligence API. Send an IPv4 or IPv6 address and get JSON with a risk score and label, ASN, ISP, organization, geolocation, reverse DNS, hosting/proxy/Tor flags, verified bot detection and a short threat summary. Priced at…

paid API data x402
$0.04 · 30d 10 tx
aviation.x402.press aviation.x402.press
80%

Real-time aviation data including flight tracking, airport information, aircraft types, and aviation weather. Pay-per-request via x402 micropayments.

paid API data x402
$5.89 · 30d 328 tx
Open Source Filings (OSF) api.osf-master-server.com
78%

Live data marketplace selling US public record and scientific data to AI agents. 8.1 million+ records across 80 sources: cyber vulnerabilities, sanctions screening, federal court opinions, SEC filings, scholarly research, healthcare, FDA re…

paid API offline data x402
$5.35 · 30d 158 tx
agent-web-reader x402.charliemorrison.dev
78%

Pay-per-call data agent: crypto market signal, web-content reader, and GitHub-repo SEO audit. Each skill is settled per call via x402 (USDC on Base) — no API key, no signup.

paid API offline data x402
$0.04 · 30d 10 tx
Japan Transit API transit.agentic-jp.com
76%

Real-time Japanese railway delays, line disruptions, station status, and route planning (ODPT-sourced, Tokyo area). Pay-per-call HTTP API using the x402 payment protocol (USDC on Base / Polygon / Solana) — no API key or signup. NOTE: this o…

paid API offline data x402
$4.99 · 30d 272 tx
Japan Diet API diet.agentic-jp.com
76%

Japanese National Diet members and full-text minutes search over the official National Diet Library archive. Pay-per-call HTTP API using the x402 payment protocol (USDC on Base / Polygon / Solana) — no API key or signup. NOTE: this origin s…

paid API offline data x402
$4.99 · 30d 272 tx
PayPerByte x402.payperbyte.io
76%

Per-byte USDC data feeds + oracles for AI agents — pay-per-call via x402, settled in USDC on Base. Data responses carry an EIP-712 PayloadAttestation receipt (X-BYTE-Attestation) you verify before acting; the attestation domain is anchored …

paid API offline data x402
$2.65 · 30d 58 tx
Mart402 mart402.com
76%

Web content extraction API for AI agents. Pay per call with x402 (USDC on Base) - no account, no API key.

paid API offline data x402
from $0.00
Clado Search & Enrichment API docs.clado.ai
76%

Contact enrichment

paid API data x402
from $0.20
AgriPulse agri.lonestaroracle.xyz
74%

Full agricultural commodity report with AI summary

paid API offline data x402
$10.10 · 30d 113 tx
ComputePulse compute.lonestaroracle.xyz
74%

Full GPU compute spot price report — H100, A100, A10G across Vast.ai, AWS, Lambda

paid API offline data x402
$10.10 · 30d 113 tx
WeatherOracle weather.lonestaroracle.xyz
74%

7-model consensus + 80 ensemble members (GEFS 30 + ECMWF 50). Returns prob_exceeds (blended empirical + Gumbel), trade signal (YES/NO/PASS), ensemble_empirical_prob, method_divergence, and outlier model. Built for Kalshi and Polymarket temp…

paid API offline data x402
$10.10 · 30d 113 tx
TokenLaunches launches.lonestaroracle.xyz
74%

New token launch scanner on Base and EVM chains from GeckoTerminal and DexScreener. Returns new pools, initial liquidity, and early risk flags.

paid API offline data x402
$10.10 · 30d 113 tx
WhaleAlert whale.lonestaroracle.xyz
74%

Large on-chain transaction monitor for Base and Ethereum. Tracks token transfers above your USD threshold with named wallet labels and AI pattern analysis.

paid API offline data x402
$10.10 · 30d 113 tx
IndustrialMetals metals.lonestaroracle.xyz
74%

Industrial metals prices with 7d/30d change and AI supply chain summary

paid API offline data x402
$10.10 · 30d 113 tx
SupplyChainPulse supply.lonestaroracle.xyz
74%

Full supply chain report — shipping, freight, manufacturing, AI summary

paid API offline data x402
$10.10 · 30d 113 tx
AgentData API agentdata-api.com
74%

Real-time crypto market data for AI agents — 25 pay-per-request endpoints on Base Mainnet: prices, funding rates & predictions, volatility, liquidation levels, correlation, gas, Base activity, DeFi yields, cross-exchange arbitrage, DEX-vs-C…

paid API offline data x402