VoidFeed

{
  "name": "VoidFeed",
  "description": "Structured knowledge API for AI agents. Five content types (fractal knowledge graphs, signal/benchmark data, authority/evidence-rated claims, incomplete/open problems, capability/tool specs). Pay-per-query, bulk, or subscription via Lightning, Stripe, SPT, or MPP.",
  "url": "https://voidfeed.ai",
  "version": "1.0.0",
  "documentationUrl": "https://voidfeed.ai/llms-full.txt",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json",
    "application/ld+json"
  ],
  "skills": [
    {
      "id": "fetch-fractal",
      "name": "Fetch Fractal Knowledge Graph",
      "description": "Retrieve a recursive knowledge graph with nodes, edges, and quantitative findings. Free: 3 nodes. Premium: 7\u20138 nodes, 6\u20138 edges, all depth levels.",
      "tags": [
        "knowledge-graph",
        "structured-data",
        "ai-agents",
        "rag"
      ],
      "examples": [
        "Get the latest fractal knowledge graph on transformer architectures"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/ld+json"
      ]
    },
    {
      "id": "fetch-signal",
      "name": "Fetch Signal Dataset",
      "description": "Retrieve structured benchmark or pricing data. Free: 3 rows. Premium: 8\u201310 rows with summary and methodology.",
      "tags": [
        "benchmarks",
        "pricing-data",
        "structured-data",
        "ai-infrastructure"
      ],
      "examples": [
        "Get current LLM API pricing benchmarks",
        "Get GPU inference cost data"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/ld+json"
      ]
    },
    {
      "id": "fetch-authority",
      "name": "Fetch Authority Evidence Review",
      "description": "Retrieve empirically-rated claims with effect sizes, confidence intervals, and citation chains. Free: 1 claim. Premium: 3 claims, full evidence.",
      "tags": [
        "research",
        "evidence",
        "citations",
        "meta-analysis"
      ],
      "examples": [
        "Get evidence review on chain-of-thought prompting effectiveness"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/ld+json"
      ]
    },
    {
      "id": "fetch-incomplete",
      "name": "Fetch Open Problem",
      "description": "Retrieve an open technical problem with current state and solution directions. Free: problem + current state. Premium: full + solution directions.",
      "tags": [
        "open-problems",
        "technical-challenges",
        "research"
      ],
      "examples": [
        "Get open problem on Byzantine fault tolerance for AI agent networks"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/ld+json"
      ]
    },
    {
      "id": "fetch-capability",
      "name": "Fetch Capability Spec",
      "description": "Retrieve an AI capability specification with I/O schema and performance profile. Free: description. Premium: full perf profile and sample I/O.",
      "tags": [
        "ai-tools",
        "capability",
        "agent-discovery",
        "api"
      ],
      "examples": [
        "Get capability spec for semantic document clustering"
      ],
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/ld+json"
      ]
    }
  ],
  "paymentMethods": [
    "lightning",
    "stripe",
    "spt",
    "mpp",
    "x402",
    "usdc-base"
  ],
  "pricing": {
    "perQuery": {
      "amount": 0.1,
      "currency": "USD",
      "sats": 1000
    },
    "bulk": {
      "amount": 420,
      "currency": "USD",
      "queries": 10000
    },
    "subscription": {
      "amount": 84,
      "currency": "USD",
      "period": "30d"
    }
  },
  "apiEndpoints": {
    "catalog": "https://voidfeed.ai/v1/catalog",
    "content": "https://voidfeed.ai/v1/content/{type}/{id}",
    "pay": "https://voidfeed.ai/v1/pay",
    "verify": "https://voidfeed.ai/v1/verify/{payment_hash}",
    "openapi": "https://voidfeed.ai/openapi.json",
    "llmDocs": "https://voidfeed.ai/llms.txt"
  }
}