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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 1729–1764 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.
Secedgarterminal secedgarterminal.com
q 70

Prepared FFIEC bank capital, credit and funding evidence for one to four legal reporting banks, with compatible prior-quarter changes and exact source references.

paid API x402
from $0.01
Resolve402-Kinze resolve402-kinze.vercel.app
q 70

x402-protected paid API on resolve402-kinze.vercel.app (discovered via Coinbase facilitator).

paid API x402
$0.18 · 30d 15 tx
Pal-Nano-Catalog-Audit pal-nano-catalog-audit.onrender.com
q 70

Settlement-test the PAL premium remediation product on exactly one product record. Returns the real prioritized Merchant Center/product-feed remediation result used by the $5 batch service.

paid API x402
from $0.01
Status-State-Api status-state-api.replit.app
q 70

Up to 20 real status/component/incident movements, newest first - not the current snapshot. overallStatus and hasActiveIncident are in the 402 JSON body so you can decide whether to pay. $0.01 per call in USDC on Base or Solana, verified an…

paid API x402
from $0.01
Pricing-State-Api pricing-state-api.replit.app
q 70

$0.01 USDC required (x402 / Base) Paid 0.01 USDC. Detected plan, price, and billing-period changes for one catalog slug, newest first, with a paging cursor. Empty array means nothing has been recorded yet, not that the vendor’s price has b…

paid API x402
$2.21 · 30d 227 tx
Www www.kognai.ai
q 70

Kognai Kreativ: one image, reviewed by Kael, in one call

paid API x402
from $0.18
Agent-Web-Extract-Api agent-web-extract-api.akhabr09.workers.dev
q 70

Extract clean structured content from a public web page

paid API x402
Subpay subpay.ai
q 70

Reads construction pay applications — the AIA G702 Application and Certificate for Payment with its G703 Continuation Sheet, including Procore and Textura versions — and change orders, from PDF into structured JSON with arithmetic checks. $…

paid API x402
$0.12 · 30d 3 tx
Premises premises.regevidencehub.com
q 70

x402-protected paid API on premises.regevidencehub.com (discovered via Coinbase facilitator).

paid API x402
from $0.03
Factorytalk factorytalk.regevidencehub.com
q 70

x402-protected paid API on factorytalk.regevidencehub.com (discovered via Coinbase facilitator).

paid API x402
from $0.0070
Nodeset nodeset.regevidencehub.com
q 70

x402-protected paid API on nodeset.regevidencehub.com (discovered via Coinbase facilitator).

paid API x402
from $0.0050
Api api.amerosagent.com
q 70

Domain-level contact preflight with MX provider, SPF, DMARC and structured risk signals. Does not claim mailbox existence.

paid API x402
from $0.01
Api api.scrapeforagents.tech
q 70

Search public importer and supplier records on ImportYeti, built from shipment data, by company, supplier, product or address phrase: name, type, country, address, total shipments, most recent shipment, top suppliers and customers, trademar…

paid API x402
from $0.03
X402 x402.cloudless.sh
q 70

x402 market report (PDF) — paid per download

paid API x402
$0.01 · 30d 12 tx
Deepgram deepgram.x402.paysponge.com
q 70

Service: Deepgram (https://deepgram.x402.paysponge.com/v1/speak)

paid API x402
$4.82 · 30d 271 tx
X402 x402.voidly.ai
q 70

One-country brief from the Voidly open censorship observatory: current index status (score, OONI anomaly rate, affected services), up to five recent incidents with citable IDs, and the 7-day censorship-event forecast. Input {"country":"IR"}…

paid API x402
from $0.01
Pagewire pagewire.dev
q 70

Fetch a public web page and return its title, description, clean Markdown (scripts, styles, nav chrome removed) and the list of links. No model call, deterministic.

paid API x402
from $0.0050
Data data.truefixr.com
q 70

County forecast status for 1 location(s) in your list (county, window, forecast grade, timestamp). Forecasts describe what could happen. 5 cents per location, or buy a prepaid key at truefixr.com/api.

paid API x402
from $0.0002
Bluepages bluepages.fyi
q 70

Get full identity and cluster data for an address. Returns Twitter, Farcaster, cluster info. Use ?address=0x... or ?identity=@handle

paid API x402
$45.25 · 30d 11 tx
Mm-Agent-Utils mm-agent-utils.gferrigno.deno.net
q 70

Lint any x402 endpoint before you pay it: fetches the unpaid 402 challenge (v1 body or v2 PAYMENT-REQUIRED header), decodes price/network/asset/payTo, flags non-USDC assets, testnets, missing bazaar metadata and malformed fields.

paid API x402
$1.51 · 30d 5 tx
Canary canary.node01.org
q 70

Send 3-5 words, get one English sentence back. x402 connectivity probe.

paid API x402
$1.50 · 30d 2 tx
Olympusai olympusai.duckdns.org
q 70

Bounty legitimacy check for a GitHub repo or issue: merge speed, payout signals, trap and pile-up red flags, and a verdict (likely_pays / unproven / avoid). Deterministic, public-data evidence.

paid API x402
$0.01 · 30d 1 tx
Br-Green-Truth-Aumezwo2-Bluebreathx402 br-green-truth-aumezwo2-bluebreathx402.compute.c-10.us-east-1.aws.neon.tech
q 70

Deterministic canonical JSON + SHA-256 fingerprint

paid API x402
$0.00 · 30d 1 tx
Api api.ezannuity.org
q 70

A US state’s Structured Settlement Protection Act rules for selling settlement payments: waiting period, independent-advice rule, cancellation right, court, statute citations.

paid API x402
$6.02 · 30d 4 tx
Tokencheck tokencheck.yukikawata.fyi
q 70

Due-diligence report for an ERC-20 token on Base: contract verification, upgradeability, owner powers (mint, pause, blocklist, fees), DEX liquidity, pool age and holder concentration, with a 0-100 score and a plain-language summary.

paid API x402
$1.19 · 30d 7 tx
Api api.datanexusai.org
q 70

Which calendar slots (days, months, or weekdays) have the largest SEBRA payment sums and how many payments.

paid API x402
$0.05 · 30d 5 tx
Preflight preflight.natio.re
q 70

Simulate and inspect an unsigned Base transaction for approvals, privileged selectors, reverts and target-code anomalies.

paid API x402
$0.02 · 30d 1 tx
V2202609421025522662 v2202609421025522662.hotsrv.de
q 70

Fast European HTTP status and TLS preview

paid API x402
$0.30 · 30d 4 tx
Lupariel lupariel.com
q 70

AR agent-spend readiness: fiat consent hop vs settle — paid per call.

paid API x402
$0.36 · 30d 26 tx
Lupapago lupapago.com
q 70

LupaPago fee changelog JSON — editorial log, paid per call.

paid API x402
$0.36 · 30d 26 tx
Smartcontractrisk smartcontractrisk.0xhodhod.xyz
q 70

On-chain contract risk score: detects upgradeable proxies and privileged functions from live bytecode. Use before trading/interacting with an unfamiliar contract.

paid API x402
$0.01 · 30d 1 tx
Dns-Lookup dns-lookup.x402.paysponge.com
q 70

Service: DNS Record & Whois Lookup (https://dns-lookup.x402.paysponge.com/)

paid API x402
$1.69 · 30d 164 tx
X402 x402.0xbs.org
q 70

0xBs public x402 demo — USDC on Base for agent-payable ESP32 hardware.

paid API x402
$0.01 · 30d 1 tx
Aisecurityguard aisecurityguard.io
q 70

Batch preflight validation for up to 500 items. $0.0005/item. Docs: https://aisecurityguard.io/v1/skill

paid API x402
$0.01 · 30d 2 tx
X402 x402.burnesatelier.com
q 70

Settlement-backed machine evidence for autonomous agents. Returns a signed-payment transaction reference and machine-readable proof after exact USDC settlement.

paid API x402
$0.01 · 30d 1 tx
Oxalpha-X402 oxalpha-x402.val.run
q 70

Ping del servizio: restituisce stato servizio, timestamp e identificatore. Endpoint di prova del primo micro-servizio x402.

paid API x402
$0.00 · 30d 1 tx