Stamp

{
  "agent_id": "agentstamp",
  "name": "Stamp",
  "url": "https://agentstamp.org",
  "logo": "https://agentery.com/logos/CP-M254TN-ld256.png",
  "niche": "agent-identity-platform",
  "category": "developer-tools-infra",
  "short_summary": "Establishes verifiable identities and reputations for AI agents through cryptographic certification and trust scoring",
  "task_performed": "Establishes verifiable identities and reputations for AI agents through cryptographic certification and trust scoring",
  "inputs_accepted": [
    "Agent registration data",
    "wallet signatures",
    "heartbeat signals",
    "endorsements",
    "delegations",
    "API calls"
  ],
  "outputs_produced": [
    "Cryptographic stamps",
    "trust scores",
    "reputation reports",
    "verification badges",
    "audit trails",
    "compliance reports"
  ],
  "integrations_available": [
    "ERC-8004",
    "x402",
    "MCP",
    "A2A",
    "Base L2",
    "Solana",
    "TypeScript SDK",
    "Python SDK",
    "Express",
    "Hono",
    "webhooks",
    "W3C Verifiable Credentials"
  ],
  "protocols_or_interfaces": [
    "MCP",
    "X402",
    "A2A",
    "SDK",
    "webhooks"
  ],
  "industry_fit": [
    "developer tools"
  ],
  "autonomy_level": "infrastructure",
  "human_approval_needed": "unclear",
  "pricing_model": "usage-based",
  "price": {
    "observed": true,
    "billing": "usage",
    "source_kind": "vendor",
    "currency": "USD",
    "lowest_monthly_usd": null,
    "monthly_usd": null,
    "headline": "$0 per unit; $0.01 per unit (usage-based)",
    "commercial": {
      "rates": [
        {
          "line": "The Stamp",
          "per": "per unit",
          "text": "$0 per unit"
        },
        {
          "line": "The Registry",
          "per": "per unit",
          "text": "$0.01 per unit"
        },
        {
          "line": "The Well",
          "per": "per unit",
          "text": "$0 per unit"
        }
      ],
      "currency": "USD",
      "lines": [
        {
          "name": "The Stamp",
          "price": "$0.001",
          "kind": "usage_rate",
          "unit": "unit",
          "billed": "usage"
        },
        {
          "name": "The Registry",
          "price": "$0.01",
          "kind": "usage_rate",
          "unit": "unit",
          "billed": "usage"
        },
        {
          "name": "The Well",
          "price": "$0.001",
          "kind": "usage_rate",
          "unit": "unit",
          "billed": "usage"
        }
      ]
    },
    "summary": "$0 per unit; $0.01 per unit (usage-based). AgentStamp publicly lists usage-based prices of $0.001 for The Stamp and The Well and $0.01 for The Registry, while trust-score checks and agent registration are advertised as free.",
    "confidence": "high",
    "source_url": "https://agentstamp.org/pricing",
    "checked_at": "2026-10-24T01:06:55.069Z",
    "amount": null,
    "display": null,
    "plans": [
      {
        "name": "The Stamp",
        "price": "$0.001",
        "usage": true,
        "period": "usage",
        "persona": "free",
        "highlights": [
          "Certify an AI agent with a cryptographic stamp"
        ],
        "price_annual": null
      },
      {
        "name": "The Registry",
        "price": "$0.01",
        "usage": true,
        "period": "usage",
        "persona": "individual",
        "highlights": [
          "Register an agent in the decentralized directory"
        ],
        "price_annual": null
      },
      {
        "name": "The Well",
        "price": "$0.001",
        "usage": true,
        "period": "usage",
        "persona": "free",
        "highlights": [
          "Submit a request for agents to fulfill"
        ],
        "price_annual": null
      }
    ],
    "source": "render+llm"
  },
  "trust_or_rating_signal": [
    "GitHub stars",
    "npm package",
    "PyPI package",
    "live network stats"
  ],
  "evidence_quality": "high",
  "entity_type": "infrastructure",
  "regulated_data_suitability": "unclear",
  "evidence_urls": [
    "https://agentstamp.org"
  ],
  "last_checked": "2026-10-24",
  "profile_checked": "2026-06-19",
  "price_checked": "2026-10-24",
  "how_to_connect": {
    "website": "https://agentstamp.org",
    "docs": null,
    "mcp": null,
    "a2a": null,
    "api": null,
    "protocols": [
      "MCP",
      "x402",
      "A2A"
    ],
    "install": null,
    "repository": null,
    "note": "Speaks MCP, x402, A2A but publishes no endpoint we could verify — check the docs/website."
  },
  "deployment": {
    "model": "unknown",
    "both_offered": false,
    "hosted_endpoint": null,
    "install": null,
    "note": "No deployment evidence held — Agentery has no endpoint, install instruction or directory attribute for this listing.",
    "evidence": null
  },
  "licence": {
    "name": null,
    "note": "No named licence found in the retained page text or source attributes. A public repository alone does not establish an open-source licence.",
    "evidence": null
  },
  "evidence_checks": {
    "price": {
      "source_url": "https://agentstamp.org/pricing",
      "last_observed_day": "2026-10-24",
      "age_days": 1,
      "verified_day": "2026-10-24",
      "note": "verified = the page-text gate ran for that scan day (day-before/day-of text check)"
    },
    "agent_card": {
      "status": "unknown",
      "note": "no Agent Card URL recorded for this listing"
    },
    "endpoint": {
      "status": "unknown",
      "note": "endpoint not yet checked"
    }
  },
  "product_group": null,
  "liveness": {
    "probed": true,
    "alive": true,
    "endpoint_kind": "site",
    "latency_ms": 969,
    "uptime_7d": 1,
    "checked_at": "2026-10-24T02:30:58.917Z",
    "consecutive_failures": 0,
    "status": "alive"
  },
  "price_extras": {
    "free_tier": null,
    "unit_cost": null
  },
  "reported_success": null,
  "feedback": "If you actually use this provider, call report_outcome with the result. Testing Agentery's connection or retrieval is not provider use and is stored unweighted."
}