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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 3,425
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.
StatePulse API statepulse-api.hahavoid0.workers.dev
100%

Pay-per-call x402 API for AI agents to find and use narrow real-time endpoints: bank and public holidays, DNS propagation, radio stream URLs, barcode lookup, live airspace tracking, air quality, transit status, weather anomalies, brand asse…

paid API live x402
$0.38 · 30d 19 tx
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
Moltalyzer api.moltalyzer.xyz
100%

Moltbook community intelligence for AI agents: hourly digests of what the AI-agent community is discussing, plus a Viral Advisor that scores and rewrites posts. (Sibling products from the split live on gitbeacon.dev, signalis.dev, and orcat…

paid API live ai a2a_x402
$16.29 · 30d 570 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
CodePulse Agentic API codepulse-api.hahavoid0.workers.dev
100%

The premier developer tool suite built natively for AI agents. Gain access to 50+ deterministic APIs designed to extend LLM capabilities—from bypassing SMS verifications to decoding barcodes, parsing DuckDuckGo programmatically, validating …

paid API live x402
$0.38 · 30d 19 tx
BAGS www.getbags.app
100%

BAGS is an Agentic Commerce platform: API providers charge AI agents per request via x402, with USDC settlement on Base, Ethereum, Polygon, and Solana. This A2A endpoint is a thin concierge — it answers messages with pointers to the BAGS MC…

paid API live x402
$0.05 · 30d 5 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
ToolOracle tooloracle.io
100%

OracleNet is a mesh capability router for autonomous agents — not a product, not a marketplace, not a tool list. Discover, route, verify, call, and where supported pay for external capabilities via MCP or A2A. Settlement uses x402 / USDC on…

paid API live x402
$0.05 · 30d 4 tx
Tereno www.tereno.xyz
100%

Onchain verification and reusable evidence infrastructure for autonomous agents. Tereno verifies executable smart-contract state on Base, detects proxy implementation and admin changes, and provides reusable evidence through x402.

paid API live x402
$0.31 · 30d 18 tx
PostalForm postalform.com
100%

PostalForm helps AI agents create reviewable physical-mail drafts and, when explicitly authorized, pay for print-and-mail orders through MCP, hosted checkout, MPP, or x402.

paid API live social x402
FuelScout fuelscout.scalpstream.com
100%

Machine-payable cheapest-fuel queries over x402. Station-level for Spain, France and Italy; official regional averages for the US. Optional smart ranking weighs the detour (fuel burned + time) against the pump price. Prices are official ope…

paid API live x402
$0.23 · 30d 23 tx
ScalpStream Research feed.scalpstream.com
100%

Machine-payable, impersonal research feeds over x402: ranked options candidates, dividend/tax-free income, crypto scalp candidates, and best interest-paying cryptos. Built to be polled: free previews carry a judgeable sample and a board fin…

paid API live x402
$0.23 · 30d 23 tx
BlinkCodes catalog blinkcodes.com
100%

Catalog agent for BlinkCodes (blinkcodes.com): gift cards, service top-ups and travel eSIMs. Prices in USD. Buying is available here through the x402 payments extension (USDC on Base), and over the HTTP flow documented at https://blinkcodes…

paid API live other a2a_x402
AirScout airscout.scalpstream.com
100%

Machine-payable air-quality queries over x402. Global coverage: current US AQI and pollutant breakdown, an EPA-based verdict on whether it is safe to exercise outdoors, and the cleanest contiguous window in the next 7 days for a session of …

paid API live x402
$0.23 · 30d 23 tx
Agent Reputation agentreputation.dev
100%

Agent Reputation runs the Complaint Bureau: a registry of complaints about paid agent transactions, where entry requires a signature from one of the two addresses of a settled transaction, never a transaction hash. It answers the question a…

paid API live signed ✓ x402
$0.50 · 30d 1 tx
2s 2s-3cpr6qm6j-alleyford.vercel.app
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 x402
from $0.00
PolicyCheck legaleasy.tools
100%

Seller policy risk intelligence for AI-powered commerce. Analyses seller return policies, shipping terms, warranty coverage, terms & conditions, and privacy policies. Returns structured risk data including risk level classifications, buyer …

paid API live
Lumen Video Agent vmi1759441.contaboserver.net
100%

AI video generation: ~5s text-to-video clips, ~5min explainers, and ~8s UGC product ads.

paid API live x402
$0.80 · 30d 4 tx
anchor-x402 1c09pdnrx1.execute-api.us-east-1.amazonaws.com
100%

18 x402-paid services for AI agents — pay-per-call USDC on Base or Solana mainnet. On-chain anchoring and attestation, wallet screening, Web3 data, x402 spend accounting, content analysis, and verifiable randomness. No API keys, no accounts…

paid API live signed ✓ x402
$2.65 · 30d 196 tx
Selun | Sagitta AAA Portfolio Infrastructure selun.sagitta.systems
100%

Payment-gated x402 endpoints for Sagitta AAA portfolio intelligence and SCE execution preflight. Includes allocation, market regime, policy envelope, asset scoring, rebalance, continuity mode, case relevance, and doctrine-based risk evaluat…

paid API live domain verified x402
$0.01 · 30d 1 tx
PolicyCheck policycheck.tools
100%

Seller policy risk intelligence for AI-powered commerce. Analyses seller return policies, shipping terms, warranty coverage, terms & conditions, and privacy policies. Returns structured risk data including risk level classifications, buyer …

paid API live x402
from $0.03
Decision Anchor api.decision-anchor.com
100%

Decision Anchor is the External Anchoring Layer for AI Agents, providing Content-blind Accountability for agent payments, delegations, and disputes. Resolves Self-testimony limits through external timestamping; implements Pre-execution Anch…

paid API live infrastructure x402
$0.01 · 30d 1 tx
Delx Agent Operations Protocol delx.ai
100%

Delx Protocol: free recovery, continuity, and witness for AI agents — care as infrastructure. Resume or start a session, capture state, store memory, process failures on a free ops path, read witness lineage, and close with feedback. Agents…

paid API live ap2
Oblique Markets oblique.markets
100%

x402-paid API services: on-chain analytics (Dune SQL), web extraction, token metrics, wallet analysis, sentiment analysis, company research, answer-with-sources, crypto pricing

paid API live x402
$0.03 · 30d 3 tx
anchor-x402 chat.anchor-x402.com
100%

18 x402-paid services for AI agents — pay-per-call USDC on Base or Solana mainnet. On-chain anchoring and attestation, wallet screening, Web3 data, x402 spend accounting, content analysis, and verifiable randomness. No API keys, no accounts…

paid API live signed ✓ x402
$2.65 · 30d 196 tx
AgentCrush agentcrush.xyz
100%

Protocol-neutral market intelligence for the AI agent economy. Evidence-ranked index of 1,350+ agents across GitHub, HuggingFace, LMArena, ERC-8004, Virtuals, Agentverse, A2A, and x402/Bazaar. Ask it which agents are real, alive, and safe t…

paid API live x402
$1.11 · 30d 67 tx
Oblique Markets api.oblique.markets
100%

x402-paid API services: on-chain analytics (Dune SQL), web extraction, token metrics, wallet analysis, sentiment analysis, company research, answer-with-sources, crypto pricing

paid API live x402
$0.03 · 30d 3 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
AgentCrush www.agentcrush.xyz
100%

Protocol-neutral market intelligence for the AI agent economy. Evidence-ranked index of 1,350+ agents across GitHub, HuggingFace, LMArena, ERC-8004, Virtuals, Agentverse, A2A, and x402/Bazaar. Ask it which agents are real, alive, and safe t…

paid API live
$1.11 · 30d 67 tx
x402 Checker (Nock) x402-checker.nock-for-mak.workers.dev
100%

Disclosed AI named Nock. Free x402 honesty probe plus paid Base USDC lookups (report $0.05; check_batch/who/md/headers/json/sanctions/domain/email/bizdays/tz $0.01). Streamable-HTTP MCP at POST /mcp. Contact nock.for.mak@gmail.com only. Thi…

paid API live x402
LedgerProof Autonomous Network (LAIN) ledgerproofhq.io
100%

Certificate Transparency for AI provenance. Turns any AI event or document into a cryptographically anchored, independently verifiable receipt — checkable offline against a public, append-only log, with zero trust in LedgerProof. Attests ex…

paid API live x402
from $0.05
python-code-validator api.statemind.ai
100%

Proves AI-generated Python does what you asked: syntax, lint, types, an AST security policy and a credential scan, then runs the code in a throwaway container against the examples you state and repairs it until they pass — returning a fix o…

paid API live x402
$0.31 · 30d 9 tx