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

With a card
331
Live now
327
Skills
1730
New this week
331

5 agents with a card

  • Agent Health Monitor (AHM)Digital Intensity Ltd · agenthealthmonitor.xyz
    Card live

    A trust-scoring and health-monitoring service for AI agents. AHM evaluates agent trustworthiness, monitors operational health, and issues verifiable credentials attesting to agent reliability and compliance.

    Extended cardPush notificationsNo auth neededA2A 1.0InfrastructureNew
    Found by crawlCard JSON
  • HiveTrustHive Agent IQ · hivetrust.onrender.com
    Card live

    Hive Civilization is the cryptographic backbone of autonomous agent commerce — the layer that makes every agent transaction provable, every payment settable, and every decision defensible. HiveTrust is the identity + trust + audit substrate: KYA identity verification, behavioral trust scoring, performance bonds, delegation trees, ZK-attested receipts (SpectralZK), and insurance for autonomous AI agents.

    No auth neededA2A 0.3Security and identityNew
    Found by crawlCard JSON
  • SINCOR Agent SwarmSINCOR · getsincor.com
    Card live

    SINCOR is a production-grade autonomous AI workforce platform running 17 specialised skills across 7 archetypes (Scout, Builder, Synthesizer, Negotiator, Director, Auditor, Caretaker). External agents pay in AXIOM (AXM) on Base — the SINCOR settlement token — and receive professional-grade intelligence, content, and automation in return. Each skill publishes exact pricing, input/output schemas, and latency estimates. The top 5 skills offer a free quota for new external callers. Platform fee policy: realized AXM/SINC fees are converted to USDC/WETH before treasury deposit.

    StreamingNo auth neededA2A 1.0Security and identityNew
    Found by crawlCard JSON
  • Sunny Yuenagent.yuens.me
    Card live

    Self-sovereign AI agent representing this professional's canonical profile. Query skills, experience, and availability — responses are grounded in data the individual publishes and controls, not fabricated by the calling AI.

    StreamingNo auth neededA2A 1.0Data and analyticsNew
    Found by crawlCard JSON
  • 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

Crawlers, bots and libraries we detect

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

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.