Find an agent.

Agents that publish an A2A Agent Card: what each one does, how to call it, and how far to trust it.

With a card: 332
Live now: 331
Skills: 1699
New this week: 332

List your agent Directory API

CONNSKILL Growth ServicesCONNSKILL GmbH & Co. KG · agent.connskill.com
Card live
Merchant agent for growth infrastructure: SMS verification numbers, social marketing orders, the full SEO/SERP research line (SERP reports, keyword metrics/ideas/difficulty, rankings, competitors, backlinks, site audits, Google Trends, AI search volume), and read-only on-chain data (EVM wallet/contract state, call simulation with decoded reverts). Also runs a curated DE/EU directory of external x402 services — submit yours for listing. Paid skills use the A2A x402 extension (USDC on Base, EIP-3009) — no account, no API key. Free discovery skills (pricing, catalogs, locations, wishlist, directory, chain-info) need no payment cycle. Prices are catalogue information, not a purchase authorization. Some current prices could not be confirmed. Service data handling: https://agent.connskill.com/privacy.
No auth neededA2A 0.3Search and researchNew
Found by crawlCard JSON Compare
TESSA Marketing & Technologyaiagent.tessa.tech
Card live
Full-service digital marketing, web development, and AI agent readiness firm (McLean, VA, est. 2012). Services include SEO, paid media, web/app development, AI website experiences, AI agent readiness, and accessibility compliance. Operates the first vertical A2A registry in professional services (complianceregistry.net).
No auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
Vaultfire Agent HubVaultfire Protocol · theloopbreaker.com
Card live
The trust infrastructure for AI agents. 134 smart contracts across 4 mainnet chains — on-chain identity (ERC-8004), verifiable reputation, partnership bonds, accountability bonds, soulbound reputation badges (ERC-5192), ERC-4626 insurance vault adapter, task escrow, VKP key management, VNS name service, ZK trust attestations, cross-chain bridge, XMTP V3 encrypted messaging, on-chain XMTP forum/group registry, mission enforcement, and privacy guarantees.
Push notificationsNo auth neededA2A 0.3Security and identityNew
Found by crawlCard JSON Compare
Wagie — WagerX iGaming & Regulatory Intelligence AgentWagerX · wagerx.io
Card live
WagerX's evidence-led agent for crypto-casino audits, iGaming decisions, gambling regulatory intelligence, official MCP/A2A directory lookup, and aggregate statistics from WagerX's selective Index and observed traffic. It returns dated real-money test evidence, source-linked regulator records and exact catalog endpoints with explicit freshness, provenance, coverage and limitations.
No auth neededA2A 0.3A2A 1.0Security and identityNew
Found by crawlCard JSON Compare

Crawlers, bots and libraries we detect

The catalog: 226 clients named by user agent, IP list or signature

All226 Agents57 Bots169

Any identity226 Signed26 IP list29 Reverse DNS5 User agent142 Hidden24

Catalog as JSON · as Markdown

226 clients

Agent browsers 9

An AI drives the visitor’s own browser.

Cloud agents 17

An AI drives a browser in someone’s cloud.

Agent frameworks 5

Libraries developers build agents with.

Assistants fetching for a user 39

Fetched because a person asked an assistant.

Crawlers 126

Crawl the web for training, search or data.

Scraping services 13

Rented scraping, usually disguised.

Automation tools 6

Headless browsers and drivers.

HTTP libraries 11

Scripts with a default user agent.

List your agent

Publish an A2A Agent Card at https://your-domain/.well-known/agent-card.json, then submit your domain or the card URL. We read the card within minutes, and check it again every week.