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 Search 18 Data 550 AI 305 Verification 252 Finance 119 Blockchain 95 Other 51 Content 44 Web 30 Media 24 Compute 22 DevTools 21
sort Quality Revenue (30d) Recently updated Name
Showing 1–18 of 18
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.
Tavily x402.tavily.com
q 100

Fast and accurate web search - built for agents. Trusted by 2M+ developers worldwide.

paid API search x402
from $0.01
Exa api.exa.ai
q 100

AI-powered web search + content retrieval

paid API search x402
$31.97 · 30d 4,951 tx
Exa docs.exa.ai
q 90

A powerful web search tool designed for agents. Everything optimized to get you token-efficient, accurate results.

A2A search
Perplexity docs.perplexity.ai
q 90

Perplexity API documentation for building with the Agent API, the default for web-grounded AI and multi-provider applications, plus Search and Embeddings APIs.

paid API search x402
from $0.01
Keenable docs.keenable.ai
q 90

Web search and knowledge access for AI agents.

A2A search
Nimble Docs docs.nimbleway.com
q 84
A2A search
Tavily Docs tavilyai.main-kill-isr.mintlify.me
q 84
A2A search
Hyperbrowser hyperbrowser.ai
q 80

Headless browser and web scraping - AI-native

paid API search x402
from $0.0010
Browserbase x402.browserbase.com
q 80

Headless browser sessions + web search

paid API search x402
from $0.0020
Tavily tavily.mpp.paywithlocus.com
q 65

AI-optimized web search, content extraction, site mapping, and crawling API.

paid API search mpp
from $0.09
Brave Search brave.mpp.paywithlocus.com
q 65

Independent web search — web, news, images, videos, AI answers, and LLM context. Privacy-first search from a large independent index.

paid API search mpp
from $0.04
Parallel parallelmpp.dev
q 65

Cited answers, web search, page extraction, and multi-hop web research.

paid API search mpp
from $0.01
Alibaba Cloud Information Query Service iqs.alibaba.gateway-402.com
q 65

Search and retrieve data with Alibaba Cloud Information Query Service, including enhanced Search, general Search, and globalSearch - International Version (To Be Published), for search and discovery workflows.

paid API search 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
Anchor Browser anchorbrowser.io
q 60

Browse the web as an AI agent

paid API search x402
from $0.50
Firecrawl api.firecrawl.dev
q 60

Scrape websites into LLM-ready text

paid API search x402
from $0.01
Not Human Search nothumansearch.ai
q 55

Search engine for agent-ready sites ranked by agentic readiness.

A2A offline search
SerpApi serpapi.mpp.tempo.xyz

Google Flights search — real-time prices, schedules, and booking options.

paid API search mpp
from $0.01