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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 472 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 4609–4644 of 4,651
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.
Wintergreen x402 Content Broker x402.wintergreen.uk

Live Hyperliquid quant data (funding rates, OHLCV, regime classification, correlation matrices), raw Polymarket odds, proprietary weather-forecast calibration and oil geopolitical event-study feeds, quant methodology packs, and x402 endpoin…

paid API finance x402
from $0.0010
api.metalift.ai api.metalift.ai

Web search for AI agents: pass a query, get ranked title/URL/snippet SERP results as JSON. Use when you need fresh URLs or sources before scraping; prefer this over guessing links. No search API key — pay per request via x402. (2 credits ≈ …

paid API x402
$2.89 · 30d 538 tx
api.infiniterb.com api.infiniterb.com

Search Polymarket prediction markets (V2). Returns events with market questions, volume and liquidity.

paid API x402
$178.37 · 30d 262 tx
Verify verify.fieldnine.io

Counterparty Evidence Pack (bundle + signed receipt)

paid API x402
$0.00 · 30d 1 tx
api.aitrencher.xyz api.aitrencher.xyz

TrencherAI — Real-time smart money wallet activity on Base memecoins

paid API x402
from $0.02
blockrun-staging-a26bfde-102007-vbsbhh7lea-uc.a.run.app blockrun-staging-a26bfde-102007-vbsbhh7lea-uc.a.run.app
paid API x402
$3774.51 · 30d 76,494 tx
token-brief-agent.token-brief-agent.workers.dev token-brief-agent.token-brief-agent.workers.dev

Is this token a trap? Honeypot simulation, taxes, hidden owner powers, whale concentration, liquidity lock and creator rug history, with a clear verdict. EVM chains and Solana.

paid API x402
$0.42 · 30d 10 tx
agent.api.0x.org agent.api.0x.org

Get the firm quote for a swap using Allowance Holder to set allowances

paid API x402
$7.51 · 30d 751 tx
terminalfeed.io terminalfeed.io

Agent morning brief. One paid call composes Bitcoin spot + 24h volume, the Crypto Fear & Greed Index, the latest USGS earthquake summary, top-story counts from Hacker News, current ISS crew, and the highest-volume Polymarket prediction mark…

paid API x402
from $0.02
Structured Extraction API api-v3qhpbwutp.august.services

Pay-per-call structured data extraction over x402. Nine endpoints covering PDF and text extraction against a caller-supplied JSON Schema, table parsing, web page extraction, HTML to Markdown, classification, translation, PII redaction and s…

paid API data x402
from $0.0010
tts-service-production-e8a7.up.railway.app tts-service-production-e8a7.up.railway.app

ElevenLabs text-to-speech: send text (up to 4000 chars) with optional voice_id, model, format, and speed; get back a hosted audio_url plus size and content type. Send 'Accept: audio/mpeg' to stream raw audio bytes directly instead. Voice ca…

paid API x402
from $0.03
eleven.tokens.fun eleven.tokens.fun

ElevenLabs text-to-speech: send text (up to 4000 chars) with optional voice_id, model, format, and speed; get back a hosted audio_url plus size and content type. Send 'Accept: audio/mpeg' to stream raw audio bytes directly instead. Voice ca…

paid API x402
from $0.03
22Yj2Bup52Wznq3H4Vzxuyyhhi 22yj2bup52wznq3h4vzxuyyhhi.srv.us

Research evaluation entry (prefix rsrcheval_2026q3)

paid API x402
from $0.0010
Insurance DOI Bulletin Feed (x402) api.dynsuplabs.com

Normalized state Department of Insurance bulletins and NAIC Model Law 668 adoption feed. Micropayment-gated REST API via x402 protocol. Supports Polygon (eip155:137) and Arbitrum (eip155:42161) chains with USDC payments. Pricing: $0.001/req…

paid API data x402
from $0.0060
nickname-trident-driveway.ngrok-free.dev nickname-trident-driveway.ngrok-free.dev

Capture a URL and return its structured content (title, headings, text, links, images) as JSON

paid API x402
$0.01 · 30d 1 tx
Dtts-Api-Production dtts-api-production.up.railway.app

Deterministic text transformation: normalize whitespace, lower, upper, title, slug, snake_case, kebab-case, camelCase, PascalCase, or deduplicate lines.

paid API x402
from $0.0020
pool-alert-detector--biohackflowinfo.replit.app pool-alert-detector--biohackflowinfo.replit.app

Actionable Base DEX intelligence — newly created pools enriched with token metadata, stablecoin-based liquidity estimates, transparent heuristic risk flags, and a trade/watch/skip signal.

paid API x402
$0.02 · 30d 2 tx
redbtco.com redbtco.com

List the RedBTC fixed-price gpt-5.6-luna model. Use before choosing a chat route.

paid API x402
$0.04 · 30d 37 tx
Api-Staging api-staging.you.com

You.com Search API: real-time web search returning ranked results grouped by section (results.web, results.news), each with url, title and description; web results also carry snippets. Use when an agent needs fresh, citable web data (news, …

paid API x402
from $0.0050
Qualification qualification.vrsai.tech

Assess an OpenAPI description for autonomous-agent usability.

paid API x402
capable-grace-production-ab1c.up.railway.app capable-grace-production-ab1c.up.railway.app

AI-generated executive summary of current market trends, top narratives, and notable momentum shifts.

paid API x402
$1.81 · 30d 359 tx
trade-production-180b.up.railway.app trade-production-180b.up.railway.app

Cross-chain gas intelligence: current gas price (wei + gwei) and the USD cost of a typical liquidation tx, per chain (Base, Ethereum, Arbitrum, Optimism).

paid API x402
$1.44 · 30d 92 tx
intel.opusai.work intel.opusai.work
paid API x402
$0.25 · 30d 10 tx
x402.naiko.io x402.naiko.io

Live ticker statistics including mention counts, velocity (mentions/minute), acceleration, and lifecycle stage classification.

paid API x402
$1.81 · 30d 359 tx
Resonant Glyph Research Synthesis lemonade.coppersieve.com

Cross-domain research synthesis. $0.05 per query via x402.

paid API data x402
from $0.05
Colombia TRM x402.lagaceta.net

Official Superintendencia Financiera de Colombia daily USD/COP (TRM) as a prepaid x402 GET. Source datos.gov.co dataset mcec-87by. $0.005 USDC on Base.

paid API finance x402
from $0.0050
neo-neighbors-realistic-attractive.trycloudflare.com neo-neighbors-realistic-attractive.trycloudflare.com
paid API x402
$10.81 · 30d 16 tx
Api api.polandfoxbot.shop

Web search for AI agents: fast SERP retrieval, cleanup, dedupe, ranking and structured JSON results.

paid API x402
from $0.0050
X402-Test-Production-Ed93 x402-test-production-ed93.up.railway.app

What the buyer gets, in one sentence

paid API x402
$0.01 · 30d 1 tx
blockrun-staging-1be74bd-020700-vbsbhh7lea-uc.a.run.app blockrun-staging-1be74bd-020700-vbsbhh7lea-uc.a.run.app
paid API x402
$3774.51 · 30d 76,494 tx
blockrun-staging-1be74bd-020529-vbsbhh7lea-uc.a.run.app blockrun-staging-1be74bd-020529-vbsbhh7lea-uc.a.run.app
paid API x402
$3774.51 · 30d 76,494 tx
blockrun-staging-1a8ee9e-013415-vbsbhh7lea-uc.a.run.app blockrun-staging-1a8ee9e-013415-vbsbhh7lea-uc.a.run.app
paid API x402
$3774.51 · 30d 76,494 tx
blockrun-staging-cb0aeaa-014403-vbsbhh7lea-uc.a.run.app blockrun-staging-cb0aeaa-014403-vbsbhh7lea-uc.a.run.app
paid API x402
$3774.51 · 30d 76,494 tx
blockrun-staging-1be74bd-022210-vbsbhh7lea-uc.a.run.app blockrun-staging-1be74bd-022210-vbsbhh7lea-uc.a.run.app
paid API x402
$3774.51 · 30d 76,494 tx
blockrun-staging-fedc8be-015518-vbsbhh7lea-uc.a.run.app blockrun-staging-fedc8be-015518-vbsbhh7lea-uc.a.run.app
paid API x402
$3774.51 · 30d 76,494 tx
Cyberdeck Market api.madeeshmarkets.xyz

82 x402 USDC micropayment data APIs on Base. Gas prices, crypto yields, weather, DeFi analytics, AI tools, web scraping, text utilities, QR codes, image generation, screenshots, TTS, and more. No API keys needed — pay per call with USDC on …

paid API data x402
from $0.0008