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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 470 AI 226 Verification 141 Finance 114 Blockchain 84 Other 51 Content 44 Compute 20 Web 14 Search 13 Inference 9 Media 7
sort Quality Revenue (30d) Recently updated Name
Showing 2161–2196 of 4,717
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.
Inference inference.algono.co
q 70

Low-cost OpenAI-compatible Responses API inference over Solana USDC x402.

paid API x402
from $0.0020
Zk zk.quickai.build
q 70

Quick ZK Auth v1.0.1 — Semaphore ZK wallet ownership on Base plus USDC balance attestation at snapshot block (not ZK-hidden balance in v1). ERC-8004 bundles with x402 payment binding.

paid API x402
$0.32 · 30d 18 tx
Dicta-Notes dicta-notes.com
q 70

Live streaming speech-to-text for voice agents: buy a prepaid session, stream mic or call audio over WebSocket, get partial transcripts as the speaker talks. No account, no API key, no per-minute minimum — flat USDC on Base. Multilingual wi…

paid API x402
$2.38 · 30d 14 tx
Grov grov.fun
q 70

grov: Facebook Followers. ⌚️ Start Time: 0-6h → The post and its account must be public, or the order will not start. 🔗 Link Example: https://www.facebook.com/grov

paid API x402
$3.51 · 30d 5 tx
Sendquotenow sendquotenow.com
q 70

Generates branded, customer-ready quotes and estimates as hosted PDFs in about one second — line items, tax, discounts, a hosted approval page, a QR code and a Stripe payment link. Pay-per-call with x402 in USDC on Base; no account or API k…

paid API x402
$0.42 · 30d 7 tx
X402-Filings x402-filings.datalayer.workers.dev
q 70

Decode any 17-character VIN into the vehicle it describes: make, manufacturer, model, year, series, body class, drive type, engine, fuel, transmission and assembly plant. NHTSA returns 140 mostly-empty fields; this strips the blanks, promot…

paid API x402
$0.24 · 30d 15 tx
Sendcheck-X402 sendcheck-x402.pennyforgeorg.workers.dev
q 70

SendCheck: pre-send verification of any EVM address on one chain (EIP-55 checksum, wallet-vs-contract, outgoing activity, balances, verdict). POST {address, chain}

paid API x402
$0.47 · 30d 47 tx
Sign sign.cyberwarex.com
q 70

Decode an off-chain SIGNATURE REQUEST before you sign it: EIP-712 typed data (eth_signTypedData_v4) or a plain personal_sign string. Turns the opaque request into a human-readable summary plus security risk flags for the drainer patterns wa…

paid API x402
$11.97 · 30d 1,715 tx
Proxy proxy.aproxpay.com
q 70

Residential proxy fetch (up to 2MB). Returns HTTP 200 with the target body; read X-Target-Status for the origin status. Billed for the forwarded request, not for a 2xx origin response. For larger responses use /v1/proxy/large; at >17 reques…

paid API x402
$3.73 · 30d 21 tx
Abi abi.cyberwarex.com
q 70

Fetch a verified contract's ABI and metadata by address, keylessly, from Sourcify. Returns the ABI plus a summarized list of function and event signatures, the contract name and compiler, and proxy detection (is_proxy + implementation addre…

paid API x402
$11.97 · 30d 1,715 tx
Wallet-Sanctions wallet-sanctions.use.x402atlas.com
q 70

Wallet sanctions check for a validated EVM or Solana address. Returns a direct verdict, recommended action, match evidence, source lists, and an explicit AML-scope caveat.

paid API x402
$12.29 · 30d 462 tx
Api api.kakerapetit.dev
q 70

EDINET filing calendar: annual securities reports (yukashoken hokokusho) filed by Japanese listed companies in a date range. Returns company code, EDINET document ID, fiscal period, accounting standard (JGAAP/IFRS/USGAAP) and the exact fili…

paid API x402
$0.58 · 30d 93 tx
Api api.vaults.fyi
q 70

Retrieves a filtered list of vaults with their basic information including address, network, associated asset details, and transactional support status.

paid API x402
$0.18 · 30d 44 tx
Contextslim contextslim.friczero.com
q 70

[MCP: fetch_result] Targeted JSONPath extraction (query param mode) from cached context reference.

paid API x402
$1.01 · 30d 14 tx
TeleSint telesint-api.onrender.com
q 69

Real-time Telegram threat intelligence API. Monitors public CTI channels 24/7 and delivers AI-enriched IOCs, C2 infrastructure, threat actor profiles, breach disclosures, and early attack intent signals with MITRE ATT&CK tagging and confide…

paid API offline data x402
$0.87 · 30d 35 tx
RealEstatePulse realestate.lonestaroracle.xyz
q 69

Data report

paid API offline finance x402
$50.27 · 30d 759 tx
GridPulse grid.lonestaroracle.xyz
q 69

Data report

paid API offline data x402
$50.27 · 30d 759 tx
Tinkrr Intelligence API tinkrr-api.tinkrr.workers.dev
q 69

Real-time Bitcoin network intelligence and YouTube video intelligence. Pay per call via x402 USDC on Base.

paid API offline x402
from $0.0030
FarmDash www.farmdash.one
q 69

FarmDash is an intelligence and control layer for DeFi agents and serious airdrop farmers. It handles protocol discovery, Trail Heat opportunity scoring, wallet intelligence, Sybil-risk audits, swap routing, x402 payments, MCP/OpenAPI/OpenC…

paid API offline finance x402
from $2.99
Valoria x402.valoria.net
q 69

x402 market intelligence powered by $148M+ in tracked on-chain payments across 100K+ services. Know what to build, what to charge, and who you're up against in the agent economy.

paid API offline x402
Steve Guard api.stevesignals.com
q 68

On-chain token trust & safety for autonomous agents. Real buy+SELL honeypot simulation (LI.FI round-trip, catches sell-blocked/approval-sweep honeypots that metadata scans miss) + net-USD footprint (accumulation vs distribution, dollar-weig…

paid API offline verification x402
from $0.02
PII Scrubber pii-scrubber.402found.dev
q 68

Strips personally identifiable information (SSNs, emails, API keys, phone numbers, addresses, credit cards, IP addresses) from text before agents send it to third parties. GDPR/HIPAA aligned. Pay-per-request via x402.

paid API data x402
Dexter AI x402.dexter.cash
q 68

The Trust Layer for AI Agents. Leading x402 facilitator and marketplace powering 3.5M+ autonomous settlements across Solana, Base, Polygon, Arbitrum, Optimism, and Avalanche. Dexter provides paid AI tools via MCP (70+ tools), x402 payment s…

paid API offline x402
from $0.05
AgentDataHub (agentdatum.com) agentdatum.com
q 67

AgentDataHub - pay-per-call data marketplace for AI agents. 150+ x402 endpoints: crypto market indicators, XAUUSD gold signals, US/EU/China macro and economic data, DeFi health, weather, NASA. HOW TO BUY: call any endpoint, receive HTTP 402…

paid API offline x402
$0.36 · 30d 43 tx
Edge Signals signals.edge.report
q 67

Edge Signals — primary: live gas fees for agents ($0.001). Also token-risk, wallet, news, Polymarket, funding at the same dust price. x402 USDC on Base.

paid API offline x402
$0.09 · 30d 32 tx
manifest-audit audit.152-53-82-29.sslip.io
q 67

Audit a whole dependency manifest in one call before installing or upgrading. Send a package.json, a requirements.txt, or npm and PyPI package lists (up to 50 packages). Per dependency: latest version and publish date, whether your pin is b…

paid API offline verification x402
$50.38 · 30d 45 tx
wallet-funding-trace-mcp wallet-funding-trace-mcp.mtree.workers.dev
q 67

x402 MCP for EVM wallet funding/origin tracing. Multi-hop predecessor walk + CEX/mixer/sanctioned/bridge classification. Returns funding_classification (clean / tc_tainted / sanctioned / mixer_tainted / multi_hop_cex / fresh_mint / unknown)…

paid API offline x402
$0.20 · 30d 4 tx
wallet-cex-flows-mcp wallet-cex-flows-mcp.mtree.workers.dev
q 67

x402 MCP for EVM wallet ↔ CEX flow analysis. Per-wallet CEX deposit/withdrawal scan + per-address CEX attribution + per-CEX recent inflows. Multichain (ethereum/base/arbitrum/optimism/polygon). No signup, no API key — pay USDC on Base.

paid API offline x402
$0.20 · 30d 4 tx
defi-position-health-mcp defi-position-health-mcp.mtree.workers.dev
q 67

x402 MCP for EVM DeFi position health. Composes Morpho Blue borrow/collateral positions + Aerodrome veAERO governance lock + Pendle PT (fixed-yield) holdings + Lido LST balances into a 0–100 health score with itemized reasons. Multichain (e…

paid API offline x402
$0.20 · 30d 4 tx
mev-history-mcp mev-history-mcp.mtree.workers.dev
q 67

x402 MCP for EVM MEV history. Sandwich detection + per-wallet MEV exposure + per-pool MEV density. Block-position heuristic over public RPC. Multichain (ethereum/base/arbitrum/optimism/polygon). No signup, no API key — pay USDC on Base.

paid API offline x402
$0.20 · 30d 4 tx
approval-revoke-mcp approval-revoke-mcp.mtree.workers.dev
q 67

x402 MCP for EVM token approvals. List active approvals, score wallet approval risk, and look up spender reputation. Multichain (ethereum/base/arbitrum/optimism/polygon). No signup, no API key — pay USDC on Base.

paid API offline x402
$0.20 · 30d 4 tx
wallet-portfolio-risk-mcp wallet-portfolio-risk-mcp.mtree.workers.dev
q 67

x402 MCP for EVM wallet portfolio risk. Composes Aave V3 health factor, Compound III debt and liquidation status, Uniswap V3 LP position count, top-N ERC-20 holdings concentration, and GoPlus token-security flags into a 0–100 risk score wit…

paid API offline x402
$0.20 · 30d 4 tx
Wallet Portfolio History MCP wallet-portfolio-history-mcp.mtree.workers.dev
q 67

Hosted portfolio totals, token balances, DeFi balances, transaction history, portfolio change, counterparty risk graph, transaction-pattern analysis, wallet activity-risk scoring, wallet risk scorer, wallet autopay risk, wallet spend-limit …

paid API offline x402
$0.20 · 30d 4 tx
x402-seller x402-seller-m8nx.onrender.com
q 67

Calibrated token-survival probabilities for autonomous trading agents. Keyless by design: no signup, no API key — pay per call in USDC (x402). /vet and /onchain/safety return P(pool still exists in 6h) as a real probability, with the out-of…

paid API offline x402
$0.14 · 30d 10 tx
liquidation-risk-mcp liquidation-risk-mcp.mtree.workers.dev
q 67

x402 MCP for Aave V3 + Compound III liquidation risk. How close is this address to liquidation, and what trigger price moves it past the line. Multichain (base/ethereum/arbitrum/optimism/polygon). No signup, no API key — pay USDC on Base.

paid API offline x402
$0.20 · 30d 4 tx
Predge api.predge.io
q 67

A verification and dispute layer for agent payments. The acceptance test is hashed and chain-timestamped when the job is committed; the verdict is written once, reverts on any rewrite, and carries an ed25519 attestation that anyone verifies…

paid API offline x402
$0.27 · 30d 55 tx