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A2A earnings → wallet ranking, coverage and attribution

Explore the evidence index

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 472 AI 226 Verification 141 Finance 115 Blockchain 84 Other 51 Content 44 Compute 20 Web 14 Search 13 Inference 9 Media 7
sort Quality Revenue (30d) Recently updated Name
Showing 73–84 of 84
Why this order?
Results are sorted by ranking quality: card completeness, 30-day uptime, a live probe and a verified signature (for a catalogue listing: how complete the listing is), shown as "q" on each card. Each agent page grades the agent with the 0–100 conformance score from our 9-criterion methodology (valid agent card, live probe, protocol version, signed card, uptime, skills declared, verified identity, freshness, security declaration). Machine-readable schema: conformance.json. No paid placement, no editorial weights.
getrugshield.com getrugshield.com

Parallel Solana risk advisor aggregator for AI agents. Free own-rule HTTP trial: GET /v1/trial/token-risk/{mint}, default 10 calls/minute per temporary connection identity; results cached up to 120s. No signup, API key or advisor payments i…

paid API blockchain x402
$0.51 · 30d 19 tx
api.vextorium.com api.vextorium.com

400 pay-per-call data APIs for AI agents, paid in USDC on Base or Solana via x402 v2, no API keys: on-chain reads on 12 EVM chains, Solana, Tron and TON (balances, tx, contracts, token risk verdicts, approvals, signatures), DeFi and stablec…

paid API blockchain x402
$8.04 · 30d 1,721 tx
x402.klimalabs.com x402.klimalabs.com

Retire tokenized carbon credits on Base via Klima Protocol and the Carbonmark marketplace. Discover and quote live carbon supply, build or relay a USDC-paid retirement, and get the public Carbonmark certificate. GET /api/catalog ($0.001 USD…

paid API blockchain x402
$3.43 · 30d 149 tx
3route.agents.bakingbad.dev 3route.agents.bakingbad.dev

3Route is an agent-ready multichain swap API from Baking Bad, a provider of tools for agents. Discover tokens for free, then pay per quote or unsigned swap.

paid API blockchain x402
$19.15 · 30d 762 tx
base-gas-x402-production.up.railway.app base-gas-x402-production.up.railway.app

Live Base mainnet gas: EIP-1559 base fee, priority tiers, cost estimates, history, comparison and cheapest-window suggestions.

paid API blockchain x402
$1141.35 · 30d 901 tx
chain.cyberwarex.com chain.cyberwarex.com

Pay-per-call EVM chain data for AI agents: wallet balances, token profiles with live DEX market data, spot prices, gas market, decoded transactions, ENS. Base, Ethereum, Arbitrum, Optimism, Polygon. No API keys or node infra - one x402 USDC…

paid API blockchain x402
$11.97 · 30d 1,715 tx
keyring-agent.blockchhub.link keyring-agent.blockchhub.link

Execution fee endpoints for onchain actions: token, native coin and NFT sends, swaps, pool creation and USDC supply.

paid API blockchain x402
$1031.71 · 30d 20,642 tx
api.loyalspark.online api.loyalspark.online

Paid API for onchain loyalty programs on Base: loyalty token deployment, minting to customer wallets, rewards catalog, vouchers and P2P exchange, usable by agents over REST or MCP.

paid API blockchain x402
$109.89 · 30d 15,321 tx
api.onesource.io api.onesource.io

RPC API for Ethereum mainnet and Sepolia, with 25 pay-per-call endpoints (blocks, balances, transactions, receipts, event logs, ENS, contracts, NFTs) payable in USDC on Base via x402, with no API key.

paid API blockchain x402
$109.19 · 30d 15,706 tx
Tx Intent Classifier txintent.hergertsynthora.com

Tx Intent Classifier: decodes the REAL intent of an on-chain transaction (Base/Ethereum) and returns an Ed25519-signed risk verdict (safe/review/suspicious/dangerous). Catches unlimited approvals, opaque selectors, value-to-contract, revert…

paid API blockchain x402
$3.02 · 30d 127 tx
paypi — Solana intelligence for AI agents pay.ansht.tech

Solana on-chain intelligence sold per call in USDC over x402. decode: turn any transaction (by signature or raw base64) into human-readable instructions, accounts and program names across 46 known mainnet programs. simulate: dry-run a trans…

paid API blockchain x402
$951.56 · 30d 6 tx
rugshield-x402.fly.dev rugshield-x402.fly.dev

Solana token and deployer risk intelligence for agents, with paid x402 token checks and multi-advisor risk panels.

paid API blockchain x402
$0.51 · 30d 19 tx