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 Maps 0 Data 548 AI 307 Verification 257 Finance 118 Blockchain 96 Other 51 Content 44 Web 31 Media 24 Compute 22 DevTools 21
sort Quality Revenue (30d) Recently updated Name
Showing 1–7 of 7
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.
tripadvisor.x402.paysponge.com tripadvisor.x402.paysponge.com
q 100

Search Tripadvisor locations and retrieve details, reviews, and photos for hotels, restaurants, and attractions worldwide, including nearby discovery and content lookups for travel, local search, and place-enrichment workflows.

paid API maps x402
$4.82 · 30d 271 tx
thinair-geo geo.thinair.co
q 80

ThinAir Geo — full-stack geo tools for AI agents via MCP. One server covering geocoding, multi-profile routing (auto, truck, bicycle, pedestrian), isochrones, live traffic, weather, and place search.

A2A offline maps
Places API (New) places.google.gateway-402.com
q 65

Search and inspect Google Places worldwide. Find businesses and points of interest, run nearby or text search, autocomplete addresses, retrieve place details, ratings, reviews, hours, photos, contact info, websites, and location metadata.

paid API maps x402
from $0.0010
Air Quality API airquality.google.gateway-402.com
q 65

Look up current, historical, and forecast air quality for global coordinates. Returns AQI, pollutant concentrations (PM2.5, PM10, O3, NO2, SO2, CO), health recommendations, local indexes, and heatmap tiles for maps.

paid API maps x402
from $0.0010
Address Validation API addressvalidation.google.gateway-402.com
q 65

Validate, normalize, and geocode postal addresses worldwide. Returns deliverability verdicts, address component fixes, geocoded coordinates, USPS metadata, plus residential, commercial, and PO Box handling across 200+ countries.

paid API maps x402
from $0.0010
Citely aicitely.com
q 62

Read-only AI-visibility (GEO) data: which AI assistants mention a brand, how often they cite its domain, and the per-provider split.

A2A offline maps
Generate and score Google Maps leads with Gemini, Apify, and Google Sheets n8n-workflow-17051.n8n.io
q 40
A2A maps