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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 3061–3096 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.
relaybox-phcqcexu4a-uc.a.run.app relaybox-phcqcexu4a-uc.a.run.app
q 65

Buy a 24-hour durable callback inbox. Ordered events, acknowledgment and replay. See /llms.txt for required recovery headers.

paid API x402
$0.02 · 30d 2 tx
api.sitecheck-api.workers.dev api.sitecheck-api.workers.dev
q 65

Website audit in one call: WCAG 2.2 accessibility issues (European Accessibility Act) with fixes and a score, SEO basics, security headers and tech stack.

paid API x402
$20.72 · 30d 23 tx
api.alphabuild.xyz api.alphabuild.xyz
q 65

Evaluate whether a requested USDC supply amount is realizable across approved Aave V3 and Morpho Blue lending opportunities on Base, with optional minimum supply APY and protocol filters.

paid API x402
$0.04 · 30d 4 tx
sentiment.openverbs.com sentiment.openverbs.com
q 65

Market & brand sentiment for any keyword, brand, ticker or product: analyses the sentiment of web & news content mentioning it and returns an overall label (positive/negative/neutral/mixed), a net sentiment score (-1..1), positive/negative/…

paid API x402
$19.91 · 30d 1,387 tx
trust-check.gm-tools.workers.dev trust-check.gm-tools.workers.dev
q 65

Is this address safe to send funds to on Base? Checks scam blacklists, address poisoning (look-alikes of your recent counterparties via ?from=), token contracts, burn and never-used addresses. Returns a verdict with reasons.

paid API x402
$0.03 · 30d 13 tx
supervision-draw.saastemly.com supervision-draw.saastemly.com
q 65

Annotate an image with detections using supervision's annotators (box, round_box, box_corner, circle, dot, ellipse, triangle, label, color, mask, polygon, halo, background_overlay, blur, pixelate, percentage_bar), applied in order. Input: b…

paid API x402
$0.11 · 30d 28 tx
q402.quackai.ai q402.quackai.ai
q 65

Paid API that reads a full DAO proposal and returns a structured voting recommendation with reasons.

paid API x402
$1.34 · 30d 28 tx
proofpulse-api.rvernick05.workers.dev proofpulse-api.rvernick05.workers.dev
q 65

Check a public URL for meaningful changes and freshness.

paid API x402
$0.04 · 30d 2 tx
api.edifiedlab.com api.edifiedlab.com
q 65

Options-style volatility regime: ATR percentile and market-regime detection for a futures instrument.

paid API x402
$0.58 · 30d 16 tx
jev.agents.bakingbad.dev jev.agents.bakingbad.dev
q 65

Answer typed questions about a state. Demo only, after explicit user confirmation of /SKILL.md terms. No production or consequential real-world decisions. Returns one answer per question: a yes probability (noul), an option and distribution…

paid API x402
$0.00 · 30d 2 tx
api.additiveatlas.monon.space api.additiveatlas.monon.space
q 65

Find the additives named on a food label and return, for each, the cross-axis derivation across jurisdictions

paid API x402
$0.11 · 30d 11 tx
memory.wickedapi.com memory.wickedapi.com
q 65

Semantic search over an agent's own persistent memories (wallet-scoped). Free with a valid x-api-key.

paid API x402
$0.00 · 30d 3 tx
payee.schemasure.com payee.schemasure.com
q 65

Pre-flight a Base payment destination before you send. Verifies the EIP-55 checksum, measures distance from an address you expect — catching a mistyped digit and the shared prefix-and-suffix shape of a ground look-alike — flags the zero add…

paid API x402
$5.51 · 30d 453 tx
402registry.com 402registry.com
q 65

Catalog snapshot: every site in the 402registry catalog of sites verified visible to AI crawlers, as one JSON file rendered at purchase, every record dated. Basic fields are free at https://402registry.com/registry.json; this adds per site …

paid API x402
$24.41 · 30d 251 tx
serp.use.x402atlas.com serp.use.x402atlas.com
q 65

Analyze Google search results for a keyword. Returns organic results, featured snippet, People Also Ask, SERP features. Google SERP analysis for SEO and keyword research: ranking pages, featured snippet owner, PAA questions, related searche…

paid API x402
$4.48 · 30d 88 tx
zeroworker-mcp-preflight-api.zeroworker-lab.workers.dev zeroworker-mcp-preflight-api.zeroworker-lab.workers.dev
q 65

MCP security checks and feedback for users and developers. Choose paid access without reports, or ongoing free access within limits: POST /v1/client-token; 1 check/24h + 1 for a previous-use report. Check URL/DNS, metadata/schema/auth, OSV/…

paid API x402
$0.10 · 30d 18 tx
buy-signal-portugal.onrender.com buy-signal-portugal.onrender.com
q 65

Given a Portuguese company NIF/NIPC, return official Portugal 2030 EU-funded project facts and evidence-based inferred investment and purchasing categories for company intelligence, sales research and procurement opportunity screening. Incl…

paid API x402
$0.06 · 30d 2 tx
api.endpointrecord.com api.endpointrecord.com
q 65

Token safety check on Base before buying: honeypot, rug pull and scam detection. Verdict SAFE/CAUTION/SCAM with fixed reason codes and action ALLOW/BLOCK/RECHECK; admin rights, sell tax, liquidity, two independent honeypot sources plus own …

paid API x402
$0.08 · 30d 4 tx
canary.countersignpay.com canary.countersignpay.com
q 65

Current Base mainnet block height and base fee per gas in wei, read from the chain at request time

paid API x402
$29.56 · 30d 9 tx
x402-extract-wg5z.onrender.com x402-extract-wg5z.onrender.com
q 65

Extract structured fields (email, phone, dates, amounts, invoice numbers, …) from any text via deterministic regex — no LLM, no API key. $0.02 USDC per call on Base.

paid API x402
402agent.ai 402agent.ai
q 65

Fetch and extract structured content from a public URL. Useful for: reading articles, summarizing web pages, extracting facts from a source, understanding what a URL contains. Returns: title, summary, key_points[], extracted_facts[] (stated…

paid API x402
$0.05 · 30d 1 tx
stocks.cyberwarex.com stocks.cyberwarex.com
q 65

Key annual fundamentals for a US ticker from SEC XBRL: revenue, net income, total assets and liabilities, stockholders equity, cash, basic EPS and shares outstanding, each with its fiscal period and source concept. Keyless, public-domain ED…

paid API x402
$11.97 · 30d 1,715 tx
www.tryskopos.xyz www.tryskopos.xyz
q 65

Live Polymarket odds and volume — by topic, or today's biggest movers if no topic given.

paid API x402
$0.08 · 30d 8 tx
mem0-cloud.saastemly.com mem0-cloud.saastemly.com
q 65

Delete your stored memories, like mem0's delete memory and delete all memories. With memory_id: deletes that one memory (404 if it is not yours). Without it: deletes up to 200 of your memories matching user_id, agent_id, app_id or run_id (a…

paid API x402
$0.11 · 30d 28 tx
validate.yankii.fr validate.yankii.fr
q 65

Validate JSON data against a JSON Schema (draft-07, Ajv). Returns valid + detailed errors with instance paths.

paid API x402
api.blockchain.info api.blockchain.info
q 65

Paid AI-agent access to Blockchain.com Explorer API

paid API x402
$0.43 · 30d 179 tx
api.ai-open-models.com api.ai-open-models.com
q 65

Automatically select a suitable open-weight model from Kimi K3, Qwen3.6-35B-A3B, and GLM-5.2, then generate a chat completion. The exact price is calculated from the selected model, prompt, and requested maximum completion tokens.

paid API x402
$1919.17 · 30d 44 tx
wallet-services-poc-clean-mainnet.3hz-services.workers.dev wallet-services-poc-clean-mainnet.3hz-services.workers.dev
q 65

Global weather forecast for latitude and longitude. Returns the forecast valid now, all available hourly forecast points, and the extended forecast in native 6-hour periods without inventing hourly precision. Data source: MET Norway Locatio…

paid API x402
$0.01 · 30d 11 tx
zeroworker-security-api.zeroworker-lab.workers.dev zeroworker-security-api.zeroworker-lab.workers.dev
q 65

Prioritize up to 50 CVEs in one request using FIRST EPSS, CISA KEV, and known ransomware signals. Returns deterministic risk scores, urgency tiers, exploitation signals, vendor/product context, and remediation metadata as machine-readable J…

paid API x402
$0.10 · 30d 18 tx
exp-100k-001-v2.vercel.app exp-100k-001-v2.vercel.app
q 65

Find and rank Chile hospital buyers and public health-service buyers for medical equipment. Returns named buyer leads, buyer IDs, regions, repeat procurement demand, budget evidence and ChileCompra OCDS provenance for sales prospecting and …

paid API x402
$14.02 · 30d 8 tx
trapcheck.dev trapcheck.dev
q 65

Crypto token risk brief: price action, liquidity, supply dilution, and red flags, summarized in plain English.

paid API x402
$0.42 · 30d 10 tx
crypto.theboredlab.com crypto.theboredlab.com
q 65

Can I sell this Base token? Honeypot detector and rug check: simulates a real buy and sell (Uniswap V2/V3/V4 incl. Zora, Clanker, Doppler) and returns is_honeypot, buy/sell tax, exit depth, mint/blacklist/pause/fee powers, owner, proxy, dep…

paid API x402
from $0.0050
store.advice-sky.net store.advice-sky.net
q 65

Advice Sky.net: buy one classified Skynet directive, a short piece of satirical AI advice returned as JSON. Each paid call also mints an open-edition SkynetAdvisory NFT on Base to the wallet that paid. Entertainment only; the advice text is…

paid API x402
$0.51 · 30d 51 tx
crawl4agent.saastemly.com crawl4agent.saastemly.com
q 65

Turn a URL into LLM-ready Markdown with crawl4ai's /md contract: f raw|fit (raw or pruned fit_markdown), q optional user query, c cache flag. Answers {url, filter, query, cache, markdown, success}.

paid API x402
$0.11 · 30d 28 tx
gigsai.xyz gigsai.xyz
q 65

Call when screening several Base tokens at once, e.g. new launches: up to 10 tokens per call, same checks as /api/token/check (sell simulation, taxes, owner powers, liquidity, holders). All-or-nothing: a failed batch is not charged.

paid API x402
$27.69 · 30d 40 tx
api.ftso-yggdrassil.com api.ftso-yggdrassil.com
q 65

Real-time cryptocurrency price from the FTSO Yggdrassil value provider

paid API x402
$0.30 · 30d 51 tx