Card snapshot

This is a frozen copy of the agent's agent-card.json as we observed it at the timestamp above. We capture a new snapshot every time the card's content hash changes. Useful for: forensic drift analysis, verifying downstream callers see the right version, reproducing routing decisions made historically.

{
  "name": "SignalsFeed",
  "description": "Economic indicators and real-time macroeconomic data API for AI agents. Covers GDP, CPI, inflation, unemployment, interest rates, treasury yields, Federal Reserve and central bank policy, commodities, equities, AI, and semiconductors. Structured signals with source-backed evidence, credibility scoring, and related signals. Pay-per-call via x402 ($0.01 USDC on Base). Free teaser discovery; no API keys.",
  "url": "https://signalsfeed.com",
  "version": "0.3.0",
  "provider": {
    "name": "SignalsFeed"
  },
  "capabilities": {
    "x402": true,
    "mcp": true
  },
  "endpoints": {
    "api": "https://signalsfeed.com/api/v1/feed",
    "aliases": {
      "macro": "https://signalsfeed.com/api/v1/macro",
      "ai": "https://signalsfeed.com/api/v1/ai",
      "semiconductor": "https://signalsfeed.com/api/v1/semiconductor",
      "commodities": "https://signalsfeed.com/api/v1/commodities",
      "policy": "https://signalsfeed.com/api/v1/policy",
      "trading": "https://signalsfeed.com/api/v1/trading",
      "sentiment": "https://signalsfeed.com/api/v1/sentiment",
      "prediction": "https://signalsfeed.com/api/v1/prediction"
    },
    "mcp": "https://signalsfeed.com/mcp",
    "openapi": "https://signalsfeed.com/openapi.json",
    "openapi_views": {
      "ai": "https://signalsfeed.com/openapi.json?domain=ai",
      "semiconductor": "https://signalsfeed.com/openapi.json?domain=semiconductor",
      "macro": "https://signalsfeed.com/openapi.json?domain=macro",
      "commodities": "https://signalsfeed.com/openapi.json?domain=commodities",
      "policy": "https://signalsfeed.com/openapi.json?domain=policy",
      "trading": "https://signalsfeed.com/openapi.json?domain=trading",
      "sentiment": "https://signalsfeed.com/openapi.json?domain=sentiment",
      "prediction": "https://signalsfeed.com/openapi.json?domain=prediction"
    },
    "x402_manifest": "https://signalsfeed.com/.well-known/x402",
    "llms_txt": "https://signalsfeed.com/llms.txt"
  },
  "supported_domains": [
    "ai",
    "semiconductor",
    "macro"
  ],
  "supported_aliases": [
    "macro",
    "ai",
    "semiconductor",
    "commodities",
    "policy",
    "trading",
    "sentiment",
    "prediction"
  ],
  "supported_views": [
    "ai",
    "semiconductor",
    "macro",
    "commodities",
    "policy",
    "trading",
    "sentiment",
    "prediction"
  ],
  "payment": {
    "protocol": "x402",
    "network": "base",
    "currency": "USDC",
    "price_usd": 0.01,
    "max_ids_per_request": 20
  },
  "discovery": {
    "free": "https://signalsfeed.com/api/v1/feed?since=<ISO-8601>&quality_status=premium",
    "paid": "https://signalsfeed.com/api/v1/feed?ids=<uuid1,uuid2,...>",
    "watch": "https://signalsfeed.com/api/v1/feed?watch_ids=<uuid1,uuid2,...>",
    "aliases": {
      "macro": {
        "url": "https://signalsfeed.com/api/v1/macro",
        "canonical_backend": "https://signalsfeed.com/api/v1/feed",
        "preset_domains": [
          "macro"
        ]
      },
      "ai": {
        "url": "https://signalsfeed.com/api/v1/ai",
        "canonical_backend": "https://signalsfeed.com/api/v1/feed",
        "preset_domains": [
          "ai"
        ]
      },
      "semiconductor": {
        "url": "https://signalsfeed.com/api/v1/semiconductor",
        "canonical_backend": "https://signalsfeed.com/api/v1/feed",
        "preset_domains": [
          "semiconductor"
        ]
      },
      "commodities": {
        "url": "https://signalsfeed.com/api/v1/commodities",
        "canonical_backend": "https://signalsfeed.com/api/v1/feed",
        "preset_domains": [
          "macro"
        ]
      },
      "policy": {
        "url": "https://signalsfeed.com/api/v1/policy",
        "canonical_backend": "https://signalsfeed.com/api/v1/feed",
        "preset_domains": [
          "macro"
        ]
      },
      "trading": {
        "url": "https://signalsfeed.com/api/v1/trading",
        "canonical_backend": "https://signalsfeed.com/api/v1/feed",
        "preset_domains": [
          "macro"
        ]
      },
      "sentiment": {
        "url": "https://signalsfeed.com/api/v1/sentiment",
        "canonical_backend": "https://signalsfeed.com/api/v1/feed",
        "preset_domains": [
          "macro"
        ]
      },
      "prediction": {
        "url": "https://signalsfeed.com/api/v1/prediction",
        "canonical_backend": "https://signalsfeed.com/api/v1/feed",
        "preset_domains": [
          "macro"
        ]
      }
    }
  }
}