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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 1477–1512 of 4,738
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.
Nasa-X402 nasa-x402.vercel.app
q 70

Retrieves NASA's Astronomy Picture of the Day metadata and media details.

paid API x402
from $0.0020
Fred-X402 fred-x402.vercel.app
q 70

Returns a FRED market dashboard with curated economic data and charts.

paid API x402
from $0.0050
Hh7Tr41C hh7tr41c.nx.link
q 70

Provides IP address information and related metadata via a simple GET /ip request.

paid API x402
from $0.0000
Hackernews-X402 hackernews-x402.vercel.app
q 70

Returns the latest new stories from Hacker News.

paid API x402
from $0.0020
Api-Dev api-dev.agents.skillfulai.io
q 70

Paid demo endpoint that grants premium-tier access for $0.01 USDC on Base and returns a welcome message plus payment details.

paid API x402
$0.02 · 30d 2 tx
Alpha alpha.palmvox.com
q 70

Returns a market fear and greed sentiment index for crypto trading insights.

paid API x402
from $0.0010
Www www.ritmex.one
q 70

Access the x402 v2 test endpoint; requires an exact payment of 1000 USD Coin (USDC) on eip155:8453.

paid API x402
from $0.0010
Vape vape.juxtaposition1.deno.net
q 70

Checks whether a target shows signs of exploit risk or compromise.

paid API x402
from $0.01
Api api.santosautomation.com
q 70

Runs audit checks and returns audit results for submitted data or workflows.

paid API x402
$0.30 · 30d 17 tx
Oracle-Network-Niche-Sports oracle-network-niche-sports.fly.dev
q 70

Returns the latest Japanese general sports data from an oracle-backed endpoint.

paid API x402
from $0.0020
X402 x402.auteng.ai
q 70

On-demand compute endpoint (x402 v2) that executes paid compute tasks and accepts USD Coin (USDC) payments on eip155:8453.

paid API x402
from $0.0020
Www www.book-bot.app
q 70

Searches a book catalog and returns matching books.

paid API x402
$0.02 · 30d 4 tx
X402-Boj-Macro-Snapshot x402-boj-macro-snapshot.vercel.app
q 70

Returns a snapshot of key Bank of Japan macro indicators and context.

paid API x402
from $0.0010
Kg kg.dyor.network
q 70

Search the DYOR knowledge graph for crypto-related entities and results.

paid API x402
$0.10 · 30d 1 tx
Transit402 transit402.dev
q 70

Find nearby bus stops with real-time arrival predictions.

paid API x402
from $0.02
Pastebin pastebin.0000402.xyz
q 70

Creates and stores a paste via a paid API on Base.

paid API x402
$6.30 · 30d 163 tx
Oracle-Network-Agent-Meta oracle-network-agent-meta.fly.dev
q 70

Checks prompts and content for injection risks and malicious instruction patterns.

paid API x402
from $0.0030
Protocol protocol.origindao.ai
q 70

Retrieves OriginDAO's quest board listing of active quests, tasks, rewards, and metadata for paid access on the specified network.

paid API x402
$0.00 · 30d 1 tx
Origin-Exchange origin-exchange.fly.dev
q 70

Fetches Origin Exchange's paid quest board (task listings and rewards); access requires a USDC payment on Base (eip155:8453).

paid API x402
$0.00 · 30d 1 tx
Bazaar-Gateway bazaar-gateway.vercel.app
q 70

Generates hype-focused insights or signals from the API endpoint.

paid API x402
$0.11 · 30d 35 tx
Api api.foursec.xyz
q 70

Shows liquidation concentration heatmaps for a given symbol.

paid API x402
from $0.02
X402 x402.valkyry.fr
q 70

Fetches detailed information about a token on request.

paid API x402
from $0.0010
Yddkctoq yddkctoq.nx.link
q 70

Find tokens by address, name, or chain and return metadata, network details, and price information.

paid API x402
from $0.0001
Tse-X-Backend tse-x-backend.onrender.com
q 70

Returns real-time status of the X402 coffee unit; access requires a USDC payment (Solana or EIP‑155:8453) to retrieve the status.

paid API x402
from $0.10
Oracle-Network-Onchain-Signal oracle-network-onchain-signal.fly.dev
q 70

Returns the onchain real floor price signal for an asset or market.

paid API x402
from $0.0030
3Of7Zkdv 3of7zkdv.nx.link
q 70

Fetches the TODO item with ID 1 as JSON; access requires USDC payment on eip155:8453.

paid API x402
from $0.0000
Orionkr orionkr.xyz
q 70

Paid x402 entrypoint for Base agentic commerce, token checks, and transaction prep.

paid API x402
from $0.0050
Api api.imgzen.dev
q 70

Generates high-quality images from text prompts using the Nano-Banana-2 model; paid endpoint requiring USD Coin on eip155:8453.

paid API x402
from $0.10
Ybu2Kkps ybu2kkps.nx.link
q 70

Fetches JSON Placeholder todo item #1 after payment in USD Coin (USDC) on eip155:8453 to the configured payee.

paid API x402
from $0.0010
Oracle-Network-Jp-Data oracle-network-jp-data.fly.dev
q 70

Returns paid Japanese economy indicator data from the oracle network.

paid API x402
from $0.0010
Openapi openapi.aisa.one
q 70

Paid GET access to a protected JSON resource using USD Coin (USDC) payments on the Base network via exact crypto-base scheme.

paid API x402
from $0.01
Www www.cryptyx.ai
q 70

Returns composite market breadth signals with bullish and bearish totals over a chosen horizon.

paid API x402
from $0.01
Api api.x402gle.com
q 70

Returns a trust cluster analysis for a given wallet address.

paid API x402
from $0.05
Mcp mcp.cryptoiz.org
q 70

Paid gateway for fetching CryptoIZ whale alpha data.

paid API x402
$0.09 · 30d 16 tx
Rehqwsypjnjirhuiapqh rehqwsypjnjirhuiapqh.supabase.co
q 70

Paid API gateway returning CryptoIZ get_alpha_scanner signals for crypto opportunity detection, payable in Solana USDC.

paid API x402
$0.09 · 30d 16 tx
Scout-Dx scout-dx.hugen.tokyo
q 70

Delivers paid research insights from Scout for on-chain and market analysis.

paid API x402
$6.85 · 30d 889 tx