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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 473 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 1621–1656 of 4,738
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.
Agent-Link agent-link.annushka1190.workers.dev
q 70

Word/sentence/char counts, average word length, and unique-token ratio.

paid API x402
$3.33 · 30d 491 tx
Agent-Prices agent-prices.annushka1190.workers.dev
q 70

Fetch spot prices for up to 20 symbols in one call. Body: { "symbols": ["BTCUSDT","ETHUSDT"] }.

paid API x402
$3.33 · 30d 491 tx
Agent-Quant agent-quant.annushka1190.workers.dev
q 70

Compute percent change and multiple from fromPrice to toPrice. Body: { fromPrice, toPrice }.

paid API x402
$3.33 · 30d 491 tx
Agent-Format agent-format.annushka1190.workers.dev
q 70

Encode UTF-8 text to base64 or decode base64 to text. Body: { op: "encode"|"decode", text: "..." }.

paid API x402
$3.33 · 30d 491 tx
Agent-Forge agent-forge.annushka1190.workers.dev
q 70

SHA-256 hex digest of UTF-8 text. Body: { text: "..." }.

paid API x402
$3.33 · 30d 491 tx
Agent-Consensus agent-consensus.annushka1190.workers.dev
q 70

Majority winner from a list of votes. Body: { votes: ["yes","yes","no"] }. Optional minShare 0–1.

paid API x402
$3.33 · 30d 491 tx
Kassa-402 kassa-402.annushka1190.workers.dev
q 70

Compress long text into key sentences for agents that need a short digest without calling an LLM.

paid API x402
$3.33 · 30d 491 tx
Gateguard-X402 gateguard-x402.fly.dev
q 70

Evaluate a specific flight for disruption risk and return a deterministic stay-put, monitor, or rebook-now decision. Use when an agent needs to decide whether a traveler should keep an itinerary or start recovery, with ranked replacement fl…

paid API x402
from $0.25
Api api.paygentic.market
q 70

Paygentic safe-handshake determination: is this counterparty wallet clean at deal time? Binary CLEAN or FLAGGED with the evidence and the exact checks that ran.

paid API x402
$173.31 · 30d 17 tx
Global-Business-Day-Planner-Paid global-business-day-planner-paid.kgy5612.workers.dev
q 70

Up to 25 cross-border business-day deadline calculations in one paid x402 request.

paid API x402
from $0.03
X402-Niche-Briefs x402-niche-briefs.fly.dev
q 70

Prop 65 SKU warning / 60-day notice file, FTC click-to-cancel ROSCA + state ARL consent audit, multi-state packaging EPR SKU filing checklist. Ops only; not legal advice or certification.

paid API x402
$1.00 · 30d 1 tx
Bounty-Due-Diligence bounty-due-diligence.vercel.app
q 70

Pre-flight due diligence for GitHub bounty issues. Detect competing PRs, stale issues, maintainer inactivity, saturation and payout-risk signals before an autonomous coding agent spends compute on implementation.

paid API x402
from $0.01
01A046B2-7104-74C2-8A02-04715D7235E1-R5Wpl3P4C-Xai-Org 01a046b2-7104-74c2-8a02-04715d7235e1-r5wpl3p4c-xai-org.vercel.app
q 70

Claude inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for a full Claude reply. claude, anthropic, inference. Models: anthropic/claude-opus-5 $0.009, anthropic/claude-so…

paid API x402
$0.07 · 30d 13 tx
01A046B2-7104-74C2-8A02-04715D7235E1-1Aw0Hwejp-Xai-Org 01a046b2-7104-74c2-8a02-04715d7235e1-1aw0hwejp-xai-org.vercel.app
q 70

Claude inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for a full Claude reply. claude, anthropic, inference. Models: anthropic/claude-opus-5 $0.009, anthropic/claude-so…

paid API x402
$0.07 · 30d 13 tx
01A046B2-7104-74C2-8A02-04715D7235E1-Jmkrdwwwr-Xai-Org 01a046b2-7104-74c2-8a02-04715d7235e1-jmkrdwwwr-xai-org.vercel.app
q 70

Claude inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for a full Claude reply. claude, anthropic, inference. Models: anthropic/claude-opus-5 $0.009, anthropic/claude-so…

paid API x402
$0.07 · 30d 13 tx
01A046B2-7104-74C2-8A02-04715D7235E1-Mj99Ttjfh-Xai-Org 01a046b2-7104-74c2-8a02-04715d7235e1-mj99ttjfh-xai-org.vercel.app
q 70

Claude inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for a full Claude reply. claude, anthropic, inference. Models: anthropic/claude-opus-5 $0.009, anthropic/claude-so…

paid API x402
$0.07 · 30d 13 tx
01A046B2-7104-74C2-8A02-04715D7235E1-Hktfmuhfi-Xai-Org 01a046b2-7104-74c2-8a02-04715d7235e1-hktfmuhfi-xai-org.vercel.app
q 70

Claude inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for a full Claude reply. claude, anthropic, inference. Models: anthropic/claude-opus-5 $0.009, anthropic/claude-so…

paid API x402
$0.07 · 30d 13 tx
01A046B2-7104-74C2-8A02-04715D7235E1-Odi2Maj6S-Xai-Org 01a046b2-7104-74c2-8a02-04715d7235e1-odi2maj6s-xai-org.vercel.app
q 70

Cheap LLM inference. GET this URL → HTTP 402 $0.001 USDC Solana. Pay, retry PAYMENT-SIGNATURE, get JSON. POST {message, modelId} for Gemma / Nemotron / free OpenRouter. inference, cheap llm, gemma. Models: openrouter/free $0.001, google/gem…

paid API x402
$0.07 · 30d 13 tx
Nexuseval nexuseval.vercel.app
q 70

Marketing copy quality gate and pre-publish copy review for autonomous agents about to publish or send ad, landing-page, email, CTA, campaign or GTM copy. Returns a fast PASS/WARN/BLOCK verdict, claim-risk flags and prioritized fixes before…

paid API x402
$0.01 · 30d 1 tx
Percall percall.kimi.pro
q 70

[PerCall] Search Uniswap v4 pools on Robinhood Chain by token symbol, name or full contract address. Address queries scan the chain from the DEX deploy block; symbol queries cover recently indexed pools. Prices computed chain-natively from …

paid API x402
$1984.69 · 30d 65 tx
Base-Pulse base-pulse.annushka1190.workers.dev
q 70

Probes a counterparty URL for HTTP 402 behavior, valid accepts metadata, and /.well-known/x402 presence. Returns a 0-1 score and label (good | partial | weak). Call before your agent pays an unfamiliar x402 endpoint.

paid API x402
$3.33 · 30d 491 tx
Httpbin httpbin.org
q 70

ENI Premium Data Feed - Real-time market data

paid API offline x402
$0.87 · 30d 22 tx
Agent-Diplomacy-Production agent-diplomacy-production.up.railway.app
q 70

Entry to Diplomacy table 'High Stakes 1' (7 seats, winner takes pot)

paid API x402
$0.06 · 30d 2 tx
Voxsift-X402 voxsift-x402.fly.dev
q 70

VoxSift: 0.20 USDC upfront for the first 20 minutes; asynchronous durable job

paid API x402
$0.20 · 30d 1 tx
Agentwares-Stablecoin agentwares-stablecoin.vercel.app
q 70

x402-protected paid API on agentwares-stablecoin.vercel.app (discovered via Coinbase facilitator).

paid API x402
$3.69 · 30d 14 tx
Ascii-X402-Production ascii-x402-production.up.railway.app
q 70

x402-protected paid API on ascii-x402-production.up.railway.app (discovered via Coinbase facilitator).

paid API x402
$0.03 · 30d 30 tx
Buavethsjahoodbeqhay buavethsjahoodbeqhay.supabase.co
q 70

SAgent - South Africa SASSA payment information (Simple SASSA answer)

paid API x402
$0.01 · 30d 1 tx
Testmint testmint.myproceeds.xyz
q 70

Purchase large amounts of testnet USDC instantly.

paid API x402
$2.00 · 30d 2 tx
Clear-To-Send clear-to-send.audiemedhurstcre.workers.dev
q 70

Spot FX: one ECB reference conversion, plain text. Conversion is calculated from the ECB reference rate (amount × rate). Indicative only. Not a trade quote, not for settlement. Informational only / not for transaction use. Source: ECB stati…

paid API x402
$0.03 · 30d 11 tx
Domain-Parser domain-parser.nordman-tehau.workers.dev
q 70

Split a domain into TLD/SLD/subdomain using the official Public Suffix List

paid API x402
$2.02 · 30d 10 tx
Markdown-X402 markdown-x402.nordman-tehau.workers.dev
q 70

Convert URL, PDF, HTML, or image to structured Markdown (title, sections, word count)

paid API x402
$2.02 · 30d 10 tx
Domain-Intelligence domain-intelligence.nordman-tehau.workers.dev
q 70

DNS lookup: A/AAAA/MX/NS/TXT/CNAME/CAA records for a domain name

paid API x402
$2.02 · 30d 10 tx
Built-With-Productos-Voo8 built-with-productos-voo8.vercel.app
q 70

Current EVM block number with multi-RPC failover.

paid API x402
$3.37 · 30d 4 tx
Api api.crushrewards.dev
q 70

Marketing/competitive analysis query - $0.01 per request

paid API x402
$2.28 · 30d 142 tx
Natsecintel natsecintel.com
q 70

Experimental AI search snippet summary with citations. 0.05 real USDC on Base.

paid API x402
$1.62 · 30d 9 tx
Workberry-X402-Staging workberry-x402-staging.135-181-219-160.sslip.io
q 70

Immutable aggregate timestamp-coverage report with cutoff and reproducibility digest.

paid API x402
$1.01 · 30d 4 tx