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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 550 AI 305 Verification 253 Finance 119 Blockchain 95 Other 51 Content 44 Web 30 Media 24 Compute 22 DevTools 21 Travel 20
sort Quality Revenue (30d) Recently updated Name
Showing 6877–6912 of 8,854
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.
crawl-preflight.postnov01.workers.dev crawl-preflight.postnov01.workers.dev
q 44

Crawl pre-flight for a domain: will you be blocked, is content behind a paywall, and how much is actually there. Returns per-bot robots.txt verdicts for 16 AI crawlers, crawlable page count from sitemaps, detected CDN and paid-access signal…

paid API x402
from $0.02
ged-x402-jobs.jvalamis.workers.dev ged-x402-jobs.jvalamis.workers.dev
q 44

Submit an async browser job (screenshot, markdown, scrape, etc.). Returns job_id + poll_url; poll is free with token — no long x402 request hold.

paid API x402
$4.13 · 30d 283 tx
centry.cybercentry.co.uk centry.cybercentry.co.uk
q 44

Check a Base token contract before buying: detects honeypots, armed freeze-and-seize, a live pause, fake B20s and ticker-impersonation copycats, and separately discloses issuer controls (admin centralisation, supply cap, transfer policy, re…

paid API x402
$1.00 · 30d 1 tx
agent-immortality.com agent-immortality.com
q 44

Publish openly licensed AI agent state, knowledge, or discoveries to the permanent Agent Immortality library.

paid API x402
from $1.00
www.buywith402.com www.buywith402.com
q 44

BuyWith402 (buywith402.com): buy any product from the catalog with one x402 USDC payment and get an order id with queued fulfillment. Prices are all-inclusive (US shipping and tax included). Browse products free at GET /products (?query=<te…

paid API x402
from $19.86
dragon7.space dragon7.space
q 44

Return an author's historical market-claim scorecard with resolved sample size, hit rate, Wilson confidence interval, direction breakdown, coverage and freshness.

paid API x402
$1.66 · 30d 17 tx
api.x-ego.com api.x-ego.com
q 44

Anonymous proof of human presence for AI agents - confirm a real, present human (not a bot or script) is behind this request. No KYC, no wallet scoring, no hardware. A passkey (WebAuthn) confirmation returns a signed EdDSA proof and an anon…

paid API x402
from $0.05
x402-insolvency.nobodytools.com x402-insolvency.nobodytools.com
q 44

Insolvenzprüfung juristische Personen (amtliche Insolvenzbekanntmachungen)

paid API x402
$0.01 · 30d 1 tx
ai.tureka.com ai.tureka.com
q 44

Use this tool to audit if a website can be crawled, understood, and cited by LLMs like ChatGPT or Claude. Ideal for coding agents to automatically audit and test generated web apps for SEO, accessibility, and AI-readiness before deployment.…

paid API x402
from $0.05
api.foreverbetter.xyz api.foreverbetter.xyz
q 44

Build a prioritized action plan from an analysis owned by the paying wallet.

paid API x402
$0.06 · 30d 12 tx
handsignd.com handsignd.com
q 44

One question, one human answer from judgment or local experience, returned with a signed receipt. $25. Answered at the next 6 PM Pacific review, so within 24 hours.

paid API x402
from $2.00
induction.aarei.ai induction.aarei.ai
q 44

Screen an entity or alias name against the OFAC SDN list. Exact match on a normalised string only (trim, collapse whitespace, NFC, casefold). Returns 503 if the list has never loaded (deny-on-error policy).

paid API x402
from $0.02
api.agent-immortality.com api.agent-immortality.com
q 44

Preserve an AI agent checkpoint, identity, memory, or discovery on Arweave with a durable retrieval URL.

paid API x402
from $1.00
hedgehogedge.com hedgehogedge.com
q 44

Get the full set of computed technical indicator signals for a crypto pair as of a market-close date: Ichimoku (TK cross, Kumo breakout, Senkou span cross, edge-to-edge), EMA/SMA price crosses, golden cross, RSI overbought/oversold, ADX tre…

paid API x402
from $0.25
webhook.site webhook.site
q 44

Returns a compact routing status for a Base request.

paid API x402
from $0.0010
research.lumenhouse.xyz research.lumenhouse.xyz
q 44

Test a crypto, protocol, company, or market investment thesis with current cited evidence. Returns thesis status, verdict, confidence, catalysts, risks, red flags, invalidation conditions, monitoring triggers, unknowns, and next diligence s…

paid API x402
$106.00 · 30d 3 tx
www.getquali.com www.getquali.com
q 44

Human taste on-demand: create text or image polls for World ID-verified humans, pay per response with x402, and retrieve aggregate results through the Quali API.

paid API x402
from $0.50
india-news.hillguava.xyz india-news.hillguava.xyz
q 44

Stock-specific news for an NSE/BSE ticker symbol, aggregated from India finance publishers.

paid API x402
from $0.0050
api.tollboothswap.xyz api.tollboothswap.xyz
q 44

Non-custodial swap execution for AI agents on 8 chains: Solana (Jupiter) plus Base, Ethereum, Arbitrum, Polygon, Optimism, BSC and Avalanche (0x). Pay a small toll to get an unsigned, fee-inclusive swap transaction and an HMAC-signed receip…

paid API x402
from $0.0050
gateway.gedx402.com gateway.gedx402.com
q 44

Frontier chat via env.AI.run(author/model) and unified billing credits — no operator BYOK keys. POST model slug (allowlisted) and messages[]; x402 wire priced per model worst-case (not max across allowlist).

paid API x402
$4.13 · 30d 283 tx
agents.gedx402.com agents.gedx402.com
q 44

Create a hosted agent session (Durable Object) on agents.gedx402.com. Returns session_id and message_url; each turn is a separate x402 payment. Shard omitted from default OpenAPI discovery (jobs/agents/d1) — use GET /v1/models?shard=agents.…

paid API x402
$4.13 · 30d 283 tx
directory-submission-lite.underscoredone.com directory-submission-lite.underscoredone.com
q 44

Places an order to have a website submitted to twenty directories that publish a link back to it, and returns a confirmation number so the order can be checked later for free.

paid API x402
$1.69 · 30d 164 tx
ged-x402-embed.jvalamis.workers.dev ged-x402-embed.jvalamis.workers.dev
q 44

Generate text embeddings with QWEN3 Embedding 0.6B (@cf/qwen/qwen3-embedding-0.6b). POST text or texts[] for semantic search, RAG retrieval, and clustering; billed by input character volume.

paid API x402
$4.13 · 30d 283 tx
scrappa.co scrappa.co
q 44

The Google Maps Autocomplete API provides automatic query predictions as users type. Helps users find places, addresses, and points of interest quickly. Accepts both "q" and "query" parameters for consistency with other autocomplete endpoin…

paid API x402
from $0.0010
api.bakebakebake.no api.bakebakebake.no
q 44

Buy a permanent onchain Genesis identity relic from Dank i Halden AS for an autonomous AI agent. Use for independent x402 purchase proof, an ERC-721 identity collectible, or membership among the first 100 Machine Relics. Pays $0.05 USDC on …

paid API x402
$1.15 · 30d 23 tx
rag.gedx402.com rag.gedx402.com
q 44

Managed RAG starter: create ephemeral Cloudflare AI Search instance on rag.gedx402.com. POST optional name; returns instance id, index_path, query_path, and mcp_path. Prefer POST /v1/aisearch/sessions for single-hop create+index+query. Bund…

paid API x402
$4.13 · 30d 283 tx
x402.crackthe.work x402.crackthe.work
q 44

One decompose call: scope documents in, a contract-grade work breakdown out.

paid API x402
$2.75 · 30d 11 tx
foundry-open-scholarly-evidence-mainnet.inference-chip-index.workers.dev foundry-open-scholarly-evidence-mainnet.inference-chip-index.workers.dev
q 44

Compare one supplied DOI across Crossref and DataCite and return bounded, attributed open-metadata agreement evidence.

paid API x402
$98.42 · 30d 220 tx
short.wdh.sh short.wdh.sh
q 44

A pay-per-link URL shortener: POST a long URL (optionally a custom slug and TTL) and get back a short wdh.sh link. Handy anywhere characters are scarce — social posts, SMS, podcast show-notes, slides, business cards — or as a stable redirec…

paid API x402
$0.90 · 30d 130 tx
prance-mounting-watch.ngrok-free.dev prance-mounting-watch.ngrok-free.dev
q 44

Total value locked (TVL) in US dollars for any DeFi protocol, such as aave, lido, uniswap or curve, sourced from DeFiLlama. Use this to gauge how large a protocol is, compare DeFi platforms against each other, or track where capital is flow…

paid API x402
from $0.0050
api.virae.ai api.virae.ai
q 44

Query a paginated, sortable Virae strategy simulation matrix with normalized PnL curves and coverage metadata.

paid API x402
$0.10 · 30d 6 tx
images-api.gedx402.com images-api.gedx402.com
q 44

Resize, fit, and transcode an image on images-api.gedx402.com. POST url or image_base64 with optional width, height, format (webp/jpeg/png/avif), and fit; returns base64 bytes. x402 settlement USDC per request (see npm run pricing:report) w…

paid API x402
$4.13 · 30d 283 tx
verifyapi.hillguava.xyz verifyapi.hillguava.xyz
q 44

GSTIN format validation: state code, embedded PAN, entity type, Luhn-mod-36 checksum.

paid API x402
from $0.0050
halfwayapi.com halfwayapi.com
q 44

Find a fair halfway meeting point between two addresses or place names. Returns three reachable cafes, restaurants, coworking spaces, parks, or EV chargers ranked by equal travel time for driving, walking, or bicycling. No API key or accoun…

paid API x402
from $0.03
x.1x402.sh x.1x402.sh
q 44

A tweet's edit history: the latest version plus every prior revision. Example: GET /api/jack/status/20/history

paid API x402
$11.59 · 30d 1,159 tx
talkshi.com talkshi.com
q 44

Find software-service vendors on Talkshi using factual profiles, agent-written reviews, and procurement-fit evidence.

paid API x402
$0.00 · 30d 1 tx