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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 549 AI 305 Verification 252 Finance 119 Blockchain 95 Other 51 Content 44 Web 30 Media 24 Compute 22 DevTools 21 Travel 19
sort Quality Revenue (30d) Recently updated Name
Showing 73–95 of 95
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.
svm402.com svm402.com

Solana token analytics: discovery of newly active tokens, token analysis and safety checks, holder checks, prices and quotes, and trading pattern analysis per token.

paid API blockchain x402
$1.82 · 30d 106 tx
defi.hugen.tokyo defi.hugen.tokyo

DeFi data and token security API. Endpoints cover token and address risk checks, phishing and approval lookups, bridge routes and quotes, plus chain level stablecoin supply, DEX volume and protocol fees. JSON over GET, $0.01 per call in USD…

paid API blockchain x402
$6.85 · 30d 889 tx
whale.hugen.tokyo whale.hugen.tokyo

Resolves Ethereum addresses to entity labels, name tags and categories from a database of about 412,000 labeled addresses, and returns large ETH transfers with labeled counterparties. Paid per call in USDC on Base.

paid API blockchain x402
$6.85 · 30d 889 tx
twin.unykorn.org twin.unykorn.org

Utility endpoints from the Genesis402 / UnyKorn operator network: Bitcoin and EVM block lookups, mempool data, script types, EIP-712 hashing, HMAC, JSON canonicalization and CSV/JSON conversion.

paid API blockchain x402
$14.85 · 30d 1,024 tx
x402.professorsausages.com x402.professorsausages.com

Token safety & rug-pull/honeypot risk check — scans an ERC-20's bytecode & ownership on Base/Ethereum for mint, blacklist, pause, fee traps Pay-per-call USDC on Base via x402; free agent-readable help doc at the base path.

paid API blockchain x402
$2.46 · 30d 114 tx
api.utilia.ink api.utilia.ink

Machine-payable Solana transaction intelligence for autonomous agents: live priority-fee quantiles, transaction simulation, confirmed-transaction diagnostics, and token mint risk analysis. Every response is deterministic structured JSON, pa…

paid API blockchain x402
from $0.0020
merchant-production-c224.up.railway.app merchant-production-c224.up.railway.app

Buy Sepolia and Hoodi testnet ETH with Base or Solana mainnet USDC through x402. Intended for wallet, smart contract, validator, and AI agent testing. Testnet ETH has no monetary value.

paid API blockchain x402
$807.28 · 30d 87 tx
agent.pocket.network agent.pocket.network

Pocket Network gateway: pay-per-call RPC access to many chains (Ethereum, Base, NEAR, Osmosis, Akash and others) plus web search, extraction and text analysis tools.

paid API blockchain x402
$50.75 · 30d 10,150 tx
api.mach.gallery api.mach.gallery

MACH Base — 17 live Base mainnet data capabilities for autonomous agents, paid per call in USDC over x402 v2; no account, API key or subscription.

paid API blockchain x402
$0.14 · 30d 28 tx
api.x402risk.com api.x402risk.com

Pay-per-call token risk check for Base. POST a Base ERC-20 contract address, get deterministic JSON: owner/renounced, EIP-1967 proxy, heuristic mint/pause/blacklist/fee functions, on-chain Uniswap v2/v3 + Aerodrome liquidity, top-holder con…

paid API blockchain x402
$0.09 · 30d 8 tx
bridge-api.argosbot.io bridge-api.argosbot.io

Look up bridges, create ownerless wrappers and bridge tokens between Arc and Base using Circle CTS and CCTP infrastructure. External wallets sign blockchain transactions; resumable jobs track preparation, delivery and finality.

paid API blockchain x402
$0.01 · 30d 1 tx
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