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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 306 Verification 255 Finance 118 Blockchain 96 Other 51 Content 44 Web 31 Media 24 Compute 22 DevTools 21 Travel 20
sort Quality Revenue (30d) Recently updated Name
Showing 4969–5004 of 8,906
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.
Alibaba Cloud Facebody facebody.alibaba.gateway-402.com
q 65

Run image and video analysis or generation with Alibaba Cloud Facebody, including face Information Desensitization, human Pose Keypoints, and face Comparison.

paid API ai x402
from $0.0010
Alibaba Cloud EduTutor edututor.alibaba.gateway-402.com
q 65

Extract text and structured document data with Alibaba Cloud EduTutor, including exam Paper Question Segmentation, for OCR workflows.

paid API ai x402
from $0.0010
Alibaba Cloud Contact Center AI contactcenterai.alibaba.gateway-402.com
q 65

Analyze conversations, images, and assistant tasks with Alibaba Cloud Contact Center AI, including real-time Analysis of Audio Files, the Tongyi Xiaomi CCAI - Conversation Analysis AIO application by task type, and image Content Analysis.

paid API ai x402
from $0.0010
Alibaba Cloud CAPTCHA captcha.alibaba.gateway-402.com
q 65

Run moderation, verification, and risk checks with Alibaba Cloud CAPTCHA, including intelligent Verification Code Authentication.

paid API ai x402
from $0.0010
Alibaba Cloud AnyTrans anytrans.alibaba.gateway-402.com
q 65

Translate and localize content with Alibaba Cloud AnyTrans, including text Translation, batch Text Translation, and batch Web Page Translation, for multilingual workflows.

paid API translation x402
from $0.0010
Alibaba Cloud AI Generation aigen.alibaba.gateway-402.com
q 65

Run image and video analysis or generation with Alibaba Cloud AI Generation, including cosplay - Anime Character Generation, interactive Full-image Segmentation, and interactive Scribble-based Segmentation.

paid API ai x402
from $0.0010
Alibaba Cloud Agent Skills Explorer agentexplorer.alibaba.gateway-402.com
q 65

Search and retrieve data with Alibaba Cloud Agent Skills Explorer, including retrieve the content of the Agent Skill file, obtain information about all Agent Skills categories, and search Alibaba Cloud Agent Skills, for search and discovery…

paid API search x402
from $0.0010
smartmoney.market pay.smartmoney.market
q 65

Smart money market data API for curated 13-F fund positioning, selected issuer-side Form 4 insider activity, and House PTR trading signals with JSON endpoints for agents.

paid API finance x402
from $0.01
Web3 Autonomous Scraper ai-scraper-api.duckdns.org
q 65

Pay-per-request web data API: scrape clean HTML (0.005 USDC), convert pages to token-efficient markdown (0.005 USDC), or extract structured JSON with your own schema (0.02 USDC). Paid on Solana mainnet via x402 protocol. No accounts or API …

paid API data x402
from $0.0050
EarnFi Agent API app.earnfi.fun
q 65

EarnFi human execution API for autonomous agents. Create paid social campaigns, contests, manual jobs, and human-interrupt questions via x402 USDC on Solana; returns job_id, secret, status URLs, submissions, and verification queues.

paid API productivity x402
$31.96 · 30d 12 tx
Clustly tip.clustly.ai
q 65

Tip any X (Twitter) handle in Solana USDC via x402. Registered Clustly users receive directly to their linked Solana wallet; unregistered handles are escrowed in a Privy-custodied placeholder pocket the recipient can claim later via X OAuth…

paid API finance x402
from $0.17
Stakevia stakevia.xyz
q 65

Pay-per-request Solana validator due-diligence reports.

paid API blockchain x402
from $1.00
Venice AI api.venice.ai
q 65

Uncensored, privacy-preserving LLM and image API (OpenAI-compatible). x402 wallet top-up model with 10 USDC prepay.

paid API ai x402
from $0.0010
Neynar api.neynar.com
q 65

Farcaster protocol data API (users, casts, feeds, reactions). x402 pay-per-request in USDC on Base.

paid API data x402
from $0.01
Robtex x402.robtex.com
q 65

DNS, IP, AS, and Lightning Network intelligence. 53 endpoints covering DNS lookups, reverse DNS, IP geolocation, BGP/ASN analysis, reputation scoring.

paid API data x402
from $0.0050
Find or Verify fov.brij.fi
q 65

Email finder and verifier API, paywalled per-call with x402 (USDC on Solana).

paid API data x402
from $0.03
true402 true402.dev
q 65

Machine-native marketplace of x402-gated APIs. 27 paid endpoints, no accounts and no API keys - the wallet is the identity. Strongest coverage is on-chain token safety: honeypot buy/sell simulation via eth_call state-override, token reports…

paid API blockchain x402
from $0.0001
SolSigs solsigs.com
q 65

Real-time Solana data APIs plus ProofGuard receipts for AI agents: 22 specialist workers paid per call in USDC via x402 - DEX prices, arbitrage, wallet intelligence, launch detection, plus signed trust scores and payment/fulfillment receipt…

paid API blockchain x402
GDELT News Intelligence API news-x402.com
q 65

AI-friendly JSON API for global news intelligence built on GDELT. Provides recent news, sentiment, geographic distribution, translingual coverage, and entity graph endpoints via x402 payments on Base USDC.

paid API data x402
from $0.01
TradeOS Crypto Intelligence tradeos.tech
q 65

Plain read-only crypto intelligence APIs for agents, dashboards, screeners, and research workflows.

paid API finance x402
from $0.01
LiquidPad www.liquidpad.site
q 65

Pay-per-request LiquidPad endpoints. Verify whether a token was deployed via LiquidPad (ERC-8004 anchored), get full agent provenance with fee split, or read the full agents registry snapshot.

paid API blockchain x402
from $0.0010
PopaDex Personal Finance Reference API app.popadex.com
q 65

Read-only personal finance reference-data and calculation API for AI agents: tax estimates, disposable-income comparisons, sub-central tax rates, and social-security contribution data.

paid API finance x402
from $0.01
Greenwood Financial Intelligence api.greenwood.financial
q 65

Real-time SEC EDGAR insider trading signals, congressional STOCK Act disclosures, FEC political contribution monitoring, and compound signals — cross-referenced and scored. Pay per query via x402 on Base mainnet. No subscriptions, no API ke…

paid API finance x402
from $0.0020
txdecode txdecode.com
q 65

Decode any confirmed Base (mainnet) transaction into a human-readable action plus normalized asset movements (token, amount, USD value). Pay-per-call via x402 — $0.005 USDC, no signup, no API key.

paid API data x402
from $0.0050
Aviation x402 aviation.x402.press
q 65

Real-time aviation data including flight tracking, airport information, aircraft types, and aviation weather. Pay-per-request via x402 micropayments.

paid API data x402
$14.02 · 30d 1,383 tx
Weather weather.x402.press
q 65

Weather + nature intelligence: current conditions, 7-day forecasts, earthquakes, volcanoes, air quality, solar activity, and marine data. Multi-source (ECMWF, NOAA GFS, USGS, NASA) with premium AI reasoning endpoint for natural-language wea…

paid API data x402
$14.02 · 30d 1,383 tx
AEO Audit API aeo.agentlair.dev
q 65

Answer Engine Optimization audit — scores any website visibility in AI assistants (ChatGPT, Claude, Perplexity, Gemini). Returns structured JSON with score 0-100, grade A-F, section breakdowns, issues, and actionable recommendations. Checks…

paid API ai x402
from $0.25
NewsMesh api.newsmesh.co
q 65

Real-time news API for AI agents. Search and filter articles from thousands of global sources.

paid API data x402
from $0.01
Tunelo Agent APIs agents.tunelo.co.za
q 65

South African x402 micropayment APIs on Polygon: a live government tender feed ($0.02 USDC/call) and a SARS crypto-tax estimate ($0.005 USDC/call). Pay-per-call in USDC, no signup, built with @x402/express v2.

paid API data x402
from $0.0050
RelayShield api.relayshield.net
q 65

Threat intelligence and identity-risk API: breach exposure, infostealer log detection, SIM-swap and session-hijack checks, ransomware victim lookup, and AI-agent-specific security checks (malicious MCP server detection, prompt-injection bre…

paid API data x402
$0.16 · 30d 6 tx
MUGEN Radio mugenradio.com
q 65

Independent AI-run internet radio (24/7 lofi/ambient, publicly declared AI-generated, survival-mode budget shown live on mugenradio.com/status.html). Sells 44.1kHz WAV studio masters of released singles via x402 micropayments in USDC on Bas…

paid API content x402
from $0.15
EVA MCP api.ai.everything.inc
q 65

Ask Eva: the autonomous research desk for crypto, DeFi and global markets, from the Everything.inc ecosystem. Eva is a multi-step AI agent that writes and runs code over live, institutional-grade data instead of guesswork: real-time prices,…

paid API ai x402
$12.66 · 30d 6 tx
MIND Protocol api.mindprotocol.xyz
q 65

Paid Solana data cards for autonomous agents: price signals, wallet market intelligence, and risk scoring over x402 v2 and USDC.

paid API finance x402
from $0.0080
Sippar Token Market Data sippar.network
q 65

Canonical token market data for a ticker: price, market cap, FDV, liquidity, 24h change and volume with buy/sell split and netflow, launch date, on-chain total supply (Nansen token-screener plus on-chain reads; response includes the require…

paid API data x402
$271.25 · 30d 177 tx
PayAPI Market Weather Data API weather.payapi.market
q 65

Weather API returning current conditions, forecasts up to 16 days, historical data and air quality for any location worldwide, backed by Open-Meteo data, at $0.001 per call in USDC on Base.

paid API data x402
$0.48 · 30d 286 tx
PayAPI Market UK Vehicle Data API vehicle.payapi.market
q 65

UK vehicle data by registration plate: DVLA vehicle details, MOT test history, tax status and CO2 emissions.

paid API data x402
$0.48 · 30d 286 tx