{
  "schemaVersion": "2026-05-17",
  "registry": "Satoshi API self-published agent registry",
  "canonicalUrl": "https://bitcoinsapi.com/agents.json",
  "updatedAt": "2026-05-17",
  "agents": [
    {
      "id": "satoshi-api-bitcoin-fee-intelligence",
      "name": "Satoshi API Bitcoin Fee Intelligence",
      "provider": {
        "name": "Satoshi API",
        "url": "https://bitcoinsapi.com",
        "contact": "mailto:api@bitcoinsapi.com"
      },
      "description": "Bitcoin fee intelligence for AI agents, wallets, and trading bots. Start free with a send-or-wait recommendation, then use x402 for keyless premium calls.",
      "category": "financial-analysis",
      "tags": [
        "bitcoin",
        "bitcoin-fees",
        "mempool",
        "send-or-wait",
        "x402",
        "mcp",
        "a2a",
        "agent-commerce"
      ],
      "homepage": "https://bitcoinsapi.com",
      "documentationUrl": "https://bitcoinsapi.com/llms.txt",
      "fullDocumentationUrl": "https://bitcoinsapi.com/llms-full.txt",
      "skillUrl": "https://bitcoinsapi.com/skill.md",
      "metaUrl": "https://bitcoinsapi.com/meta.json",
      "agentCardUrl": "https://bitcoinsapi.com/.well-known/satoshi-agent.json",
      "a2aAgentCardUrl": "https://bitcoinsapi.com/.well-known/agent-card.json",
      "agentContextUrl": "https://bitcoinsapi.com/api/v1/agent-context",
      "mcp": {
        "package": "bitcoin-mcp",
        "install": "pip install bitcoin-mcp",
        "serverCardUrl": "https://bitcoinsapi.com/.well-known/mcp/server-card.json",
        "mcpDiscoveryUrl": "https://bitcoinsapi.com/.well-known/mcp.json",
        "toolsUrl": "https://bitcoinsapi.com/.well-known/mcp/tools.json"
      },
      "x402": {
        "discoveryUrl": "https://bitcoinsapi.com/.well-known/x402",
        "discoveryJsonAlias": "https://bitcoinsapi.com/.well-known/x402.json",
        "capabilityDiscoveryUrl": "https://bitcoinsapi.com/x402/discovery",
        "paidOpenapiUrl": "https://bitcoinsapi.com/openapi.json",
        "network": "eip155:8453",
        "asset": "USDC on Base",
        "firstPaidEndpoint": {
          "method": "GET",
          "url": "https://bitcoinsapi.com/api/v1/fees/now",
          "priceUsd": "$0.001"
        },
        "premiumEndpoint": {
          "method": "GET",
          "url": "https://bitcoinsapi.com/api/v1/x402/satoshi-bitcoin-fee/fees/briefing",
          "canonicalUrl": "https://bitcoinsapi.com/api/v1/fees/briefing",
          "priceUsd": "$0.05"
        }
      },
      "freeActivation": {
        "method": "GET",
        "url": "https://bitcoinsapi.com/api/v1/fees/recommended",
        "why": "Returns a useful Bitcoin send-or-wait fee recommendation before signup or payment."
      },
      "capabilities": [
        "Recommend whether to send Bitcoin now or wait",
        "Estimate Bitcoin transaction cost by vsize and target",
        "Analyze mempool pressure and next-block fee conditions",
        "Produce premium x402 send-or-wait briefings for buyer agents",
        "Expose 49 Bitcoin MCP tools through the bitcoin-mcp package"
      ]
    }
  ]
}