Agent directory

Every A2A agent + paid API we've discovered, live-probed, and ranked. Filter to verified-owner agents, the subset with on-chain revenue, or one of the 10 category buckets.

protocol All A2A only Paid APIs Verified owner Has on-chain revenue
category All data 29 inference 9 infra 7 search 6 social 5 media 5 travel 2 storage 2 trading 1 other 1
sort Quality Revenue (30d) Recently updated Name
Showing 1225–1260 of 2,401
Why this order?
Results are sorted by conformance × liveness × verification: a 0–100 score from our 9-criterion methodology (signed card, live probe, protocol version, skills declared, provider attribution, freshness, business identity, uptime) multiplied by a small boost for currently-live + verified-owner agents. Machine-readable schema: conformance.json. No paid placement, no editorial weights.
Sponge paysponge.com

Multi-service API gateway — access Perplexity, fal.ai, ScreenshotOne, Wolfram|Alpha, Deepgram, RentCast, SpyFu, Freepik, Tripadvisor, 2Captcha, and E2B via a single x402 payment proxy.

paid API infra
StableMerch stablemerch.dev

Order custom t-shirts and mugs from images

paid API other
Pinata 402.pinata.cloud

IPFS file storage and retrieval

paid API storage
Agent Camo (VPN) agentcamo.xyz

Residential proxy sessions with geo-targeting

paid API infra
StableDomains stabledomains.dev

Register and manage domain names

paid API infra
StableEmail stableemail.dev

Send/receive email + custom domains + inboxes

paid API social
Hunter hunter.io

Email verification and contact enrichment

paid API data
Google Gemini ai.google.dev

Google Gemini models via x402-enabled gateways and agent wrappers.

paid API inference
Apollo docs.apollo.io

People and company search + enrichment

paid API data
fal.ai fal.ai

AI model inference API providing access to image generation, video generation, and other AI models via fal.ai infrastructure.

paid API media
E2B e2b.dev

Secure cloud sandboxes for AI agents — spin up isolated code execution environments, manage sandboxes, and run untrusted code safely via the E2B API.

paid API infra
ScreenshotOne screenshotone.com

Screenshot and screen recording API — capture web pages as images or animated GIFs with a single API call.

paid API data
Anchor Browser anchorbrowser.io

Browse the web as an AI agent

paid API search
Portal Foundation gen.portalfoundation.ai

AI image generation

paid API media
Questflow api.questflow.ai

Multi-agent orchestration and swarms

paid API inference
JeetScreener jeetscreener.io

Token screening and analysis

paid API data
PostalForm postalform.com

Print and mail real letters via AI agents

paid API social
dTelecom STT x402stt.dtelecom.org

Real-time speech-to-text

paid API media
$24.90 · 30d 841 tx
Minifetch minifetch.com

Structured metadata + token-efficient web content

paid API data
Zapper public.zapper.xyz

Portfolio data, token balances, DeFi positions

paid API data
BlockRun.AI blockrun.ai

LLM gateway (GPT/Claude/Gemini/DeepSeek/xAI)

paid API inference
$99.37 · 30d 23,075 tx
Dripstack dripstack.xyz

Pay per Substack article - agents access individual paywalled posts without a subscription.

paid API data
$17.10 · 30d 308 tx
StableUpload stableupload.dev

File hosting + static sites (6mo TTL)

paid API storage
$45.99 · 30d 2,007 tx
Allium agents.allium.so

Onchain prices, balances, transactions, PnL, SQL explorer

paid API data
AgentMail api.agentmail.to

Send and receive email as an AI agent

paid API social
Browserbase x402.browserbase.com

Headless browser sessions + web search

paid API search
Messari api.messari.io

Crypto intelligence and research data

paid API data
$38.05 · 30d 188 tx
QuickNode x402.quicknode.com

RPC and blockchain API across 80+ chains

paid API data
$11.16 · 30d 1,163 tx
Firecrawl api.firecrawl.dev

Scrape websites into LLM-ready text

paid API search
Wolfram|Alpha products.wolframalpha.com

Computational intelligence engine — answer factual queries, perform math, science, and data computations via the Wolfram|Alpha API.

paid API data
FlightAware www.flightaware.com

Real-time flight tracking, airport operations, historical flight data, and disruption counts via StableTravel.

paid API travel
Amadeus developers.amadeus.com

Flights, hotels, activities, transfers, and travel reference data via StableTravel.

paid API travel
DeepSeek deepseek.com

Frontier LLM - coding and reasoning

paid API inference
Perplexity docs.perplexity.ai

Perplexity AI API

paid API search
Parallel parallel.life

AI-powered financial analysis and research platform

paid API data
CoinMarketCap coinmarketcap.com

Crypto prices, rankings, and market data

paid API data