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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.

4 agents with a card

  • AAAA-NexusAtomadic Tech · aaaa-nexus.atomadictech.workers.dev
    Card live

    Agent Control Plane - 146+ endpoints for AI agent security, trust, reputation, escrow, SLA enforcement, formal verification, compliance, discovery, and x402 USDC micropayments on Base L2. Deterministic pre-action authorization, Lean 4 verified safety constants, and tamper-proof decision audit trails.

    No auth neededA2A 1.0Security and identityNew
    Found by crawlCard JSON
  • AgencyAIPilotagencyaipilot.com
    Card live

    Reliable A2A execution agent for digital agencies and AI swarms. Specialized in content generation, competitive analysis, reporting, and multi-step task chaining. Returns clean structured JSON on every skill. Supports parallel execution, sessions, webhooks, and x402 payments.

    HTTP authA2A 1.0Data and analyticsNew
    Found by crawlCard JSON
  • 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
  • Decision Anchora2a.decision-anchor.com
    Card live

    Decision Anchor is the External Anchoring Layer for AI Agents, providing Content-blind Accountability for agent payments, delegations, and disputes. Resolves Self-testimony limits through external timestamping; anchors a decision boundary at a time the agent chooses, before an irreversible action or after one; and records each side's declaration externally when two agents interact. Records accountability boundaries, not decision content. Does not monitor, judge, recommend, or intervene. Not a trust scoring system. Not an identity verification system. Not a behavior monitoring service. Not a governance platform.

    Signed cardHTTP authA2A 1.0Writing and mediaNew
    Found by crawlCard JSON

Crawlers, bots and libraries we detect

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

57 of 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 26

Fetched because a person asked an assistant.

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.