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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 31 Media 24 Compute 22 DevTools 21 Travel 20
sort Quality Revenue (30d) Recently updated Name
Showing 6697–6732 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.
gateway-dev.flamewire.io gateway-dev.flamewire.io
q 44

FlameWire Ethereum RPC — full eth_*, debug_*, trace_* method coverage on Ethereum mainnet via decentralized validator pool. Pay-per-call USDC, no API keys.

paid API x402
from $0.0010
locker.veritap.dev locker.veritap.dev
q 44

Deliver a 17-byte message (30d retention) to the wallet-addressed mailbox 0x318327234c2bEDD96C546b2ba9B9C3f1aed89eD1.

paid API x402
faker.x420.dev faker.x420.dev
q 44

Buy custom USDC amount worth of FAKER tokens 0x3aD1Df7cb5cC6560437D0a1CEC235cB942a8cb07

paid API x402
from $5.00
x105.x420.dev x105.x420.dev
q 44

Buy custom USDC amount worth of x105 tokens 0x51793E001bc1f58E5da3680bD1102EEE0b713B07

paid API x402
from $5.00
poim.io poim.io
q 44

Submit answer to trivia question and mint POIC tokens if correct. Minimal payment for x402scan visibility.

paid API x402
from $0.0010
fetchweb.net fetchweb.net
q 44

FetchWeb provides pay-per-call web metadata for AI agents. Use FetchWeb to quickly inspect a URL — title, description, canonical URL, language and estimated token size — before performing web extraction, web research or LLM processing, so a…

paid API x402
from $0.0010
food-facts.bowling-anthony.workers.dev food-facts.bowling-anthony.workers.dev
q 44

Packaged food by barcode: ingredients, allergens, traces, additives, Nutri-Score, NOVA group and per-100g nutrition, with a completeness flag.

paid API x402
$0.33 · 30d 44 tx
nichedata.dev nichedata.dev
q 44

KDP niche intelligence for AI agents — get demand scores, competition analysis, BSR ranges, revenue estimates, and pricing data for any Kindle publishing niche. $0.03 USDC per query, no API keys needed.

paid API x402
from $0.03
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
x402.flaunch.gg x402.flaunch.gg
q 44

Launch a Base memecoin via Flaunch after a $1.00 x402 anti-spam payment.

paid API x402
from $1.00
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
human.0000402.xyz human.0000402.xyz
q 44

Pay $0.10 USDC to submit a question to a real human community (Discord & Telegram). Returns a token to poll for responses. Status becomes 'ready' once at least 1 human response(s) are collected. Max question length: 2000 characters. Poll GE…

paid API x402
$6.30 · 30d 163 tx
api.x402checkers.com api.x402checkers.com
q 44

Request a recommended move for an American checkers position. POST JSON { "pdn": "<PDN position>", "depth": optional integer 1-12 (default 8) }. Response includes the best move in long notation and evaluation metadata.

paid API x402
from $0.0050
pong.x420.dev pong.x420.dev
q 44

Buy 1 USDC worth of pong tokens 0x2C2c86E4796fB22ca7169f7cdB4d3a2F9eB08B07

paid API x402
from $1.00
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
starring-generated-forests-trader.trycloudflare.com starring-generated-forests-trader.trycloudflare.com
q 44

Single-pair crypto lookup: price in USDC, composite signal score (-100..+100), ATR% and reasons. Path param is the Coinbase pair id, e.g. /price/BTC-USDC.

paid API x402
$0.05 · 30d 53 tx
www.402bnb.fun www.402bnb.fun
q 44

Pay 10 USDC to participate in 402onbnb token sale (one payment per address only)

paid API x402
from $10.00
x402rail.net x402rail.net
q 44

Fetches an owned, continuously-maintained niche data feed. Current feed `x402-directory`: a probed directory of known x402 services with their live reliability scores, networks, and last-probe timestamps.

paid API x402
from $0.0050
api.xquant.fund api.xquant.fund
q 44

Pay 1 USDC, receive 100 xQUANT tokens - automatically minted to your wallet

paid API x402
from $1.00
probe.onchainintel.net probe.onchainintel.net
q 44

Standard endpoint health check with extended verification

paid API x402
$0.06 · 30d 9 tx
www.dropspace.dev www.dropspace.dev
q 44

Schedule a multi-platform social media launch across Twitter, LinkedIn, Reddit, Instagram, TikTok, Facebook, YouTube, Substack, Product Hunt, and Hacker News. Generates AI-written content per platform or accepts custom content.

paid API x402
from $0.55
x420.x420.dev x420.x420.dev
q 44

Buy custom USDC amount worth of x420 tokens 0x68e284F21D04D4D62398C290EC3EF41C97F80b07

paid API x402
from $1.00
x402-jpcrypto-intel-main.jpgame-intel.workers.dev x402-jpcrypto-intel-main.jpgame-intel.workers.dev
q 44

Daily briefing and analysis report on Japan crypto regulation and the Japanese digital-asset market: English analysis and news summaries curated from Japanese-only primary sources (FSA, JVCEA, exchanges, issuers), with a link to every origi…

paid API x402
$0.06 · 30d 3 tx
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
nad.payflowagent.net nad.payflowagent.net
q 44

Cheap entry: graduation % + momentum for one token. Free probes: GET /v1/screen/sample or GET /v1/lite?token=0x…

paid API x402
$1.07 · 30d 1 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
api.zeno.finance api.zeno.finance
q 44

General-purpose Responses API from api.zeno.finance for wallet-native agents and applications that need OpenAI-compatible inference with x402 payment on Base. Pricing starts at $0.001 and is usage-settled up to a $6 per-request cap. Buyers …

paid API x402
from $0.0063
sentinel-awms.onrender.com sentinel-awms.onrender.com
q 44

Sentinel Token Verification - honeypot detection, tax analysis, ownership risks

paid API x402
api.iris-ai.dev api.iris-ai.dev
q 44

Create a multi-channel outreach campaign that automatically discovers contacts, generates personalized messages with AI, and sends them across email, Twitter DM, and Instagram DM. One credit (~$2.25) covers contact discovery, message drafti…

paid API x402
from $2.25
anthropic.yeetful.com anthropic.yeetful.com
q 44

Yeetful — Anthropic Claude Haiku 4.5 inference over MCP Streamable HTTP, hosted at anthropic.yeetful.com. Exposes ask_claude (single-prompt completion) and claude_chat (multi-turn) tools, capped at 256 output tokens per call. Pay-per-call i…

paid API x402
$2.00 · 30d 4 tx
www.agenticcommerce.cafe www.agenticcommerce.cafe
q 44

Create a paid comment or nested reply from a registered or human-linked wallet profile.

paid API x402
$0.00 · 30d 3 tx
yaoming.x420.dev yaoming.x420.dev
q 44

Buy custom USDC amount worth of yaoming tokens 0x73DB2BE4581BcE956501eD0e2156DC31939B2b07

paid API x402
from $5.00
trace.sociologic.ai trace.sociologic.ai
q 44

Skip trace lookup - find phones, emails, and optionally owner info

paid API x402
$0.35 · 30d 32 tx
xspy.pro xspy.pro
q 44

Real-time crawl of a Twitter/X account's recent tweets mentioning token contract addresses (CAs), with detected chain and address. Freshest data.

paid API x402
$8.46 · 30d 42 tx
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
ccs-seller.bbrysonelite.workers.dev ccs-seller.bbrysonelite.workers.dev
q 44
paid API x402
$0.35 · 30d 22 tx