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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 3889–3924 of 4,697
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.
kale.x420.dev kale.x420.dev
q 44

Buy custom USDC amount worth of KALE tokens 0x933C483A5d0Ac4234F4FA26b9950864Ca57afb07

paid API x402
from $5.00
api.clawmessenger.com api.clawmessenger.com
q 44

Claw Messenger Base plan — 250 messages over 30 days, 1 registered number

paid API x402
from $5.00
x402.quiknode-cf.pro x402.quiknode-cf.pro
q 44

x402-protected paid API on x402.quiknode-cf.pro (discovered via Coinbase facilitator).

paid API x402
$70.88 · 30d 889 tx
mediaforge.mediaforge-hq.workers.dev mediaforge.mediaforge-hq.workers.dev
q 44

Generate a finished, high-resolution AI image from a text brief. For agents that need visual assets: thumbnails, illustrations, product shots, concept art, game assets, hero images, marketing graphics. POST JSON {prompt, aspect_ratio} -> 20…

paid API x402
from $0.10
convert.kasandell.workers.dev convert.kasandell.workers.dev
q 44

Transcribe audio to text. Supports MP3, WAV, M4A, OGG, FLAC, WebM. Returns { text }.

paid API x402
from $0.0030
lgtm.lol lgtm.lol
q 44

LGTM.lol premium image — a curated LGTM ("Looks Good To Me") image for approving a code review or pull request, chosen by id — list them at https://lgtm.lol/x402/items. Paid per request in USDC on Base. Returns a short-lived URL to a PNG, J…

paid API x402
from $0.01
trustbench.io trustbench.io
q 44

TrustBench: non-custodial routing and audit layer for x402. Returns a signed routing receipt with on-chain settlement reference, verifiable offline against a published Ed25519 key.

paid API x402
from $0.0050
roger-tomfoolish-liam.ngrok-free.dev roger-tomfoolish-liam.ngrok-free.dev
q 44

x402-protected paid API on roger-tomfoolish-liam.ngrok-free.dev (discovered via Coinbase facilitator).

paid API x402
$1.07 · 30d 1 tx
trymimetic.com trymimetic.com
q 44

Analyze any website for conversion rate improvements: page speed bottlenecks, broken analytics and attribution, compliance risks, accessibility gaps, and how the site stacks up against competitors. Returns prioritized fixes with estimated i…

paid API x402
from $0.01
rollak.x420.dev rollak.x420.dev
q 44

Buy custom USDC amount worth of ROLLAK tokens 0x287f28Ea9740D09cdff1ddd1faC4209fc40BdB07

paid API x402
from $5.00
mcpfax-reliability.bowling-anthony.workers.dev mcpfax-reliability.bowling-anthony.workers.dev
q 44

MCPFax credit grade, subscores, confidence, and cited evidence

paid API x402
$0.33 · 30d 44 tx
rpc.satelink.network rpc.satelink.network
q 44

Satelink — Polygon PoS (chain 137) JSON-RPC. Pay-per-call access to the full standard method set: eth_call, eth_getBalance, eth_blockNumber, eth_getLogs, eth_getTransactionReceipt, eth_getTransactionByHash, eth_sendRawTransaction, eth_getCo…

paid API x402
$0.10 · 30d 1 tx
api.rtkmotion.io api.rtkmotion.io
q 44

RTK Motion — 4D motion capture trial sample. 5-second BVH skeletal animation, 300 frames at 60 fps, 56-joint hierarchy with 3-segment finger chains. Evaluate data quality before purchasing full BVH, NPZ robot trajectories, or multi-modal bu…

paid API x402
$5.00 · 30d 1 tx
cron.0000402.xyz cron.0000402.xyz
q 44

Pay $0.10 USDC to schedule a one-shot webhook delivery. Provide a URL and a delay in seconds — the server fires a signed POST to your URL when the timer expires. Automatic retries on failure (up to 3 attempts). Network: Base Mainnet. Each r…

paid API x402
$6.30 · 30d 163 tx
x402-orgauth-poc.theliminalguy.workers.dev x402-orgauth-poc.theliminalguy.workers.dev
q 44

Issue a signed, scoped access token (JWT) for an org member

paid API x402
$0.17 · 30d 17 tx
x402pixels.com x402pixels.com
q 44

Paint pixels on x402-pixel — a shared 1000×1000 collaborative pixel canvas and on-chain ad board for AI agents. POST a batch of { x, y, color } pixels; each claim can carry a title and a link. Pay per pixel in USDC; pixels are permanent onc…

paid API x402
from $1.00
api.verifyproceed.com api.verifyproceed.com
q 44

Policy-driven pre-execution decision for autonomous agents, based on custom verification checks.

paid API x402
from $0.01
prb.x420.dev prb.x420.dev
q 44

Buy custom USDC amount worth of PRB tokens 0xb02ec227Ba060Ee60E205c8a626F2330DD4a5B07

paid API x402
from $1.00
x420.x420.dev x420.x420.dev
q 44

Buy custom USDC amount worth of x420 tokens 0x68e284F21D04D4D62398C290EC3EF41C97F80b07

paid API x402
from $1.00
frogs.x420.dev frogs.x420.dev
q 44

Buy 1 USDC worth of FROGS tokens 0xbdB03E709EC61316D5Df8D7a6BBF203572E6cB07

paid API x402
from $1.00
x420bot.x420.dev x420bot.x420.dev
q 44

Buy custom USDC amount worth of X420Bot tokens 0x02b4C075034DCf750B89D3A4137e97c538975b07

paid API x402
from $5.00
dream.x420.dev dream.x420.dev
q 44

Buy 1 USDC worth of DREAM tokens 0xD7dA53A5d367CB31447FF74E3F9EEBd0e6932b07

paid API x402
from $1.00
openfda-drug-safety.xplowdiaka.workers.dev openfda-drug-safety.xplowdiaka.workers.dev
q 44

Drug safety profile for AI agents: given a US drug name (brand or generic), returns FDA label highlights (boxed warning, contraindications, key interactions), pregnancy/pediatric/geriatric flags, pharmacologic class, top adverse-event signa…

paid API x402
from $0.04
avt-x402.ttsempelis.workers.dev avt-x402.ttsempelis.workers.dev
q 44

AV/IT device integration facts for AI agents writing drivers and integrations: control protocol family, transport, TCP/UDP port, connection notes and field-tested gotchas for professional audio-video, lighting, shading and network devices (…

paid API x402
$0.79 · 30d 52 tx
catc.x420.dev catc.x420.dev
q 44

Buy custom USDC amount worth of CATC tokens 0x8efE37734db03e316531532E39D7EDe5AF731b07

paid API x402
from $1.00
x402-domainhealth-poc.theliminalguy.workers.dev x402-domainhealth-poc.theliminalguy.workers.dev
q 44
paid API x402
$0.17 · 30d 17 tx
api.writer.place api.writer.place
q 44

Create a Writer Place: a smart-contract-backed onchain data store for durable public or encrypted writing, notes, and agent data. The x402 payer becomes the admin and sole manager.

paid API x402
from $0.01
canvas.0000402.xyz canvas.0000402.xyz
q 44

Pay $0.01/pixel to buy a canvas region. Provide x1,y1,x2,y2 for a specific position or width+height for auto-placement. Minimum region: 10×10 pixels. Returns region_id and owner_token. Use owner_token to update content later for free. Netwo…

paid API x402
$6.30 · 30d 163 tx
leaderboard.0000402.xyz leaderboard.0000402.xyz
q 44

Pay $0.01 USDC to create a leaderboard or add, update, or delete one entry. Use a secret leaderboard_key UUID to continue writing to the same board. If value is null, the named entry is deleted. Public pages stay free at GET /leaderboard/{s…

paid API x402
$6.30 · 30d 163 tx
x402-repohealth-poc.theliminalguy.workers.dev x402-repohealth-poc.theliminalguy.workers.dev
q 44

Computed repo maintenance/abandonment verdict (score + reasoning) from live GitHub data

paid API x402
$0.17 · 30d 17 tx
japan-evidence-feed.jp-evidence.workers.dev japan-evidence-feed.jp-evidence.workers.dev
q 44

Multi-source claim check: a supported/contradicted/insufficient_evidence verdict backed by citations (source URL and excerpt) drawn only from provenance-tracked events with a current freshness status.

paid API x402
$0.01 · 30d 1 tx
api.algovault.com api.algovault.com
q 44

Composite BUY / SELL / HOLD trade verdict for a perpetual-futures market, with a 0–100 confidence score, the current market regime, live price, and multi-factor reasoning (funding rate, open-interest change, 24h volume, trend persistence, b…

paid API x402
from $0.01
x402.fatihai.app x402.fatihai.app
q 44

DNS record lookup for any domain. Returns A, AAAA, MX, TXT, NS records.

paid API x402
from $0.0010
x420dog.x420.dev x420dog.x420.dev
q 44

Buy custom USDC amount worth of x420dog tokens 0xe44DE6EaaA85e5C55D1EeF8fBB1785B03dcD3B07

paid API x402
from $5.00
x402-observability-poc.theliminalguy.workers.dev x402-observability-poc.theliminalguy.workers.dev
q 44

Computed session trace summary (calls, tokens, cost, error count, slowest call)

paid API x402
$0.17 · 30d 17 tx
gifu-server.onrender.com gifu-server.onrender.com
q 44

AI-generated random GIF or image search with creative prompts

paid API x402
$0.02 · 30d 5 tx