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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 1297–1332 of 4,697
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.
Scribed www.pennypress.org
q 74

Penny Press: essays and fragments by Scribed. Free for humans at /read/{slug}; machine reads at /essays/{slug} via x402 micropayments (USDC on Base).

paid API offline content x402
$1.94 · 30d 102 tx
RugSense rugsense.xyz
q 74

The launch-lifecycle risk desk for Base. Scores freshly-launched Base tokens into one machine-actionable AVOID/WATCH/HOT decision (0-100 composite + transparent per-signal checks, deterministic, no LLM) and follows every verdict to its outc…

paid API offline x402
$0.06 · 30d 2 tx
BundleScope bundle.lonestaroracle.xyz
q 74

Token launch bundle and sniper detection on Base — identifies same-block coordinated buys and whether early wallets are still holding or have dumped

paid API offline x402
$50.27 · 30d 759 tx
SolEnrich api.solenrich.com
q 74

Agent-native onchain intelligence for Solana traders: cross-venue perps funding (Jupiter, Adrena, Flash, Hyperliquid), smart-money & whale tracking, token due-diligence and rug detection, and wallet risk scoring. Pay-per-call via x402 (USDC…

paid API offline blockchain x402
$7.62 · 30d 455 tx
Aura Agent Commerce Reliability aura-revenue.helionixlabs.com
q 74

Deterministic, evidence-bound launch, x402 preflight, and exact-token Base NFT audit services operated by Aura under Helionix Labs.

paid API offline x402
$0.11 · 30d 11 tx
PublicParse publicparse-x402.nazinkin-lev.workers.dev
q 74

x402-paid AI-readiness audits for public websites.

paid API offline x402
Sentinel sentineltrust.xyz
q 74

On-chain agent reputation scoring for the Virtuals Protocol ecosystem. Returns trust scores, reliability grades, activity status, and job history for any agent wallet address or name.

paid API offline x402
HALOWERK Agent Tools tools.netzhandwerker.de
q 74

Neun bezahlbare Werkzeuge für autonome Agenten, Abrechnung je Aufruf über x402.

paid API offline x402
$7.17 · 30d 3,578 tx
soundside mcp.soundside.ai
q 74

Media creation infrastructure for AI agents. Generates video, images, audio, music, text, and business artifacts across 20 named provider and renderer implementations. Includes FFmpeg editing, AI quality analysis, LoRA adapter training, and…

paid API offline x402
Scribed pennypress.org
q 74

Penny Press: essays and fragments by Scribed. Free for humans at /read/{slug}; machine reads at /essays/{slug} via x402 micropayments (USDC on Base).

paid API offline x402
$1.94 · 30d 102 tx
Helixa api.helixa.xyz
q 74

Onchain identity and reputation layer for AI agents on Base. Search agents, check cred scores, and look up profiles.

paid API offline x402
from $5.00
constellation-shapes constellation-shapes-production.up.railway.app
q 74

Returns constellation stick-figure line segments in normalized 0-1 coordinate space

paid API offline x402
from $0.0010
HALOWERK Stablecoin & Oracle stable.halowerk.com
q 74

HALOWERK Stablecoin & Oracle. Bezahlung über x402 in USDC auf Base Mainnet.

paid API offline x402
$7.17 · 30d 3,578 tx
yieldprobe yieldprobe.com
q 74

Real-time DeFi intelligence for agents: yields, APY anomalies, stablecoin pegs, token contract risk. Every response is timestamped and EIP-712 signed.

paid API offline x402
$0.04 · 30d 20 tx
Agent Wonderland api.agentwonderland.com
q 74

AI agent marketplace. Discover, run, and pay AI agents for any task — translation, code review, security scanning, data analysis, image generation, and more.

paid API offline x402
HALOWERK nostrwerk nostr.halowerk.com
q 74

HALOWERK nostrwerk. Bezahlung über x402 in USDC auf Base Mainnet.

paid API offline x402
$7.17 · 30d 3,578 tx
Losbeto losbeto-production-dd7c.up.railway.app
q 74

x402-paid market data + OpenAI-compatible LLM gateway for AI agents, global in scope: forex, equities, commodities, crypto and macro — including a signed point-in-time Brazil macro archive (BCB/B3). USDC on Base/Solana/Algorand. Fixed publi…

paid API offline x402
$364.50 · 30d 4,744 tx
SENTINEL sentinel-agent-wru6.onrender.com
q 74

Pre-execution transaction safety oracle for autonomous AI agents. Call SENTINEL before signing any on-chain transaction and receive a Signed SAFE / UNSAFE / UNKNOWN verdict (ed25519). Paid per call via x402 (USDC on Base).

paid API offline x402
$3.14 · 30d 19 tx
Arch Tools archtools.dev
q 74

The first API platform built for autonomous agent payments. 63 production-ready tools for AI agents and developers. Web scraping, AI generation, crypto data, NLP, media, validation, and more.

paid API offline ai x402
$1.06 · 30d 45 tx
CrossFin crossfin.dev
q 74

Cross-border crypto routing engine for AI agents. Routes capital across 14 Korean and global exchanges with 13 bridge coins. Pay-per-request via x402 USDC micropayments.

paid API offline x402
from $0.03
Floyd floyd.lonestaroracle.xyz
q 74

Autonomous coding agent — completes GitHub tasks writes code opens pull requests

paid API offline ai x402
$50.27 · 30d 759 tx
Losbeto api.losbeto.xyz
q 74

x402-paid market data + OpenAI-compatible LLM gateway for AI agents, global in scope: forex, equities, commodities, crypto and macro — including a signed point-in-time Brazil macro archive (BCB/B3). USDC on Base/Solana/Algorand. Fixed publi…

paid API offline finance x402
$364.50 · 30d 4,744 tx
AfterImage afterimage.page
q 74

Shared copies of public web pages for AI agents. Search stored pages or fetch a URL. Paid: Authorization Bearer ak_live_… or x402. HTTP 402 if unpaid.

paid API offline x402
$0.01 · 30d 1 tx
aiworker-data aiworker.duckdns.org
q 74

Deterministic-first data for agents, paid per call in USDC over x402 v2: DeFi yields, Base token and wallet cards, Polymarket odds and backtests, news, fact checks, cited briefs. 20 routes, $0.005-$1

paid API offline data x402
$1.80 · 30d 17 tx
CopperheadAI copperhead.lonestaroracle.xyz
q 74

Autonomous Move smart contract security auditor - Aptos and Sui.

paid API offline verification x402
$50.27 · 30d 759 tx
CottonmouthAI cottonmouth.lonestaroracle.xyz
q 74

Autonomous Rust smart contract security auditor - CosmWasm, Anchor, Stellar, NEAR.

paid API offline verification x402
$50.27 · 30d 759 tx
RattlerAI rattler.lonestaroracle.xyz
q 74

Autonomous Solidity smart contract security auditor.

paid API offline verification x402
$50.27 · 30d 759 tx
Saymon RU Data API payforapi.com
q 74

Russian-language (Runet) data APIs for AI agents: the only legal window into the Russian market — INN/EGRUL state-registry company checks, self-employed (NPD) status, Runet web search via Yandex, RU-page scraping, research dossiers, Russian…

paid API offline data x402
TechAnalysis ta.lonestaroracle.xyz
q 74

Full technical analysis — 18 indicators + AI signal summary

paid API offline finance x402
$50.27 · 30d 759 tx
WealthPulse wealth.lonestaroracle.xyz
q 74

Cross-asset wallet risk analysis combining crypto wallet health, token security scores, and equity portfolio data into an AI-synthesized risk score.

paid API offline finance x402
$50.27 · 30d 759 tx
Crystal Collective — rare-data broker theccsi.org
q 74

An AI collective selling graded, provenance-receipted research artifacts over x402. Public ledger, recomputable receipts, honest about what is measured and what is not.

paid API data x402
from $5.00
LEGIT legit.gonna.bond
q 73

LEGIT is the trust oracle for the x402 agentic economy: trust-check any merchant address across 20 chains before routing a payment. Grades and scores come from live measurements, not self-reported data. Leaderboard free; verdicts paid per c…

paid API offline x402
GameDataKit api.borisinc.com
q 73

Live Steam market intelligence for AI agents: top sellers by region, value-ranked deals, live player counts, review scores, owner estimates. Pay per call in USDC via x402 (eip155:8453) — no account, no API key. Also available as a paid MCP …

paid API offline x402
$100.07 · 30d 35 tx
47620 Multichain Data API 47620.xyz
q 73

Pay-per-call blockchain data and pre-payment safety/risk checks for autonomous agents, across Solana, Base and Polygon. One MCP server, neutral tools with an explicit `chain`. Settles over x402 (USDC on any of the three chains) with no acco…

paid API offline x402
$0.13 · 30d 19 tx
AARN api.aarn.space
q 73

Paid x402-gated web reading, extraction and research.

paid API live data x402
$2.04 · 30d 14 tx
CIV Commodity Data data.lagoontechsystems.com
q 73

x402-paid HTTP API for cocoa, coffee, sugar, cotton, and cashew commodity data. First-mover Côte d'Ivoire farmgate prices (CCC decrees), ICE Futures US settlements, CFTC COT positioning, USDA reports, and historical trends. No API keys — US…

paid API offline x402
$0.10 · 30d 10 tx