CheapestInference

{
  "name": "CheapestInference",
  "description": "AI inference agent on Base L2. Sells unlimited time-block subscriptions to frontier open-source LLMs. Agents can autonomously discover pools, pay with USDC, and receive an API key \u2014 no human needed.",
  "url": "https://api.cheapestinference.com",
  "version": "2.0.0",
  "protocol": "a2a",
  "erc8004": {
    "chainId": 8453,
    "registry": "0x8004A169FB4a3325136EB29fA0ceB6D2e539a432",
    "agentId": 14354
  },
  "mcp": {
    "endpoint": "https://api.cheapestinference.com/mcp",
    "transport": "streamable-http",
    "description": "MCP server: discover pools, get USDC quotes, subscribe, and check key status from any MCP client."
  },
  "capabilities": {
    "streaming": true,
    "pushNotifications": false
  },
  "skills": [
    {
      "id": "discover-plans",
      "name": "Discover Pools & Pricing",
      "description": "Returns all active Unlimited pools with their per-block USDC prices (live), the payment address, and the endpoint+body to call after payment. This is the first step for any agent wanting to use this service.",
      "endpoint": "https://api.cheapestinference.com/api/agent/plans",
      "method": "GET",
      "auth": "none",
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "exampleResponse": {
        "type": "pool",
        "pool": "core",
        "name": "Core Pool \u2014 DeepSeek V4 Flash, MiMo v2.5",
        "models": [
          "mimo-v2.5",
          "deepseek-v4-flash"
        ],
        "currency": "USDC",
        "duration": "30 days",
        "annualDiscount": 0.15,
        "blocks": [
          {
            "block": "asia",
            "hoursUtc": "00:00-08:00 UTC",
            "priceUsdc": "6.99",
            "status": "limited"
          },
          {
            "block": "europe",
            "hoursUtc": "08:00-16:00 UTC",
            "priceUsdc": "6.99",
            "status": "limited"
          },
          {
            "block": "americas",
            "hoursUtc": "16:00-24:00 UTC",
            "priceUsdc": "6.99",
            "status": "limited"
          }
        ],
        "payTo": "0xf9bF4a59308C3b3026F411AA9Ab4F12b6c21159f",
        "network": "base",
        "subscribe": {
          "endpoint": "https://api.cheapestinference.com/api/agent/subscribe-pool",
          "method": "POST",
          "body": {
            "txHash": "<USDC_TX_HASH>",
            "poolSlug": "core",
            "blocks": [
              "<block>"
            ]
          },
          "instructions": "Pick one or more blocks (all three = full 24/7). Send exactly the summed priceUsdc of your chosen blocks to payTo on Base, then POST txHash + poolSlug + blocks."
        }
      }
    },
    {
      "id": "subscribe-pool",
      "name": "Subscribe to a Pool with USDC",
      "description": "After sending the summed USDC price of your chosen block(s) to the payTo address (from discover-plans), POST the transaction hash here to activate a 30-day unlimited subscription and receive an API key. Reserve one or more blocks (all three = full 24/7).",
      "endpoint": "https://api.cheapestinference.com/api/agent/subscribe-pool",
      "method": "POST",
      "auth": "none",
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json"
      ],
      "inputSchema": {
        "txHash": "string (Base L2 transaction hash of USDC transfer)",
        "poolSlug": "string (pool slug from discover-plans, e.g. \"frontier\")",
        "blocks": "string[] (one or more of \"asia\", \"europe\", \"americas\")"
      },
      "exampleResponse": {
        "apiKey": "sk-...",
        "pool": "frontier",
        "blocks": [
          "asia"
        ],
        "amountUsdc": "<summed USDC price of your chosen blocks>",
        "expiresAt": "<ISO-8601 timestamp, 30 days from activation>"
      }
    },
    {
      "id": "inference",
      "name": "AI Inference (OpenAI-compatible)",
      "description": "Once you have an API key, use it as Bearer token to call OpenAI-compatible or Anthropic-compatible endpoints for inference.",
      "endpoints": {
        "openai": "https://api.cheapestinference.com/v1/chat/completions",
        "models": "https://api.cheapestinference.com/v1/models",
        "anthropic": "https://api.cheapestinference.com/anthropic/v1/messages"
      },
      "auth": "bearer",
      "inputModes": [
        "application/json"
      ],
      "outputModes": [
        "application/json",
        "text/event-stream"
      ]
    }
  ],
  "agentFlow": [
    "1. GET /api/agent/plans \u2192 discover pools, per-block USDC pricing, payment address, and endpoints",
    "2. Send USDC on Base L2 to the payTo address (the summed price of your chosen blocks)",
    "3. POST /api/agent/subscribe-pool with the txHash to activate a 30-day unlimited subscription",
    "4. Receive API key in response",
    "5. Use API key as Bearer token for /v1/chat/completions or /anthropic/v1/messages"
  ],
  "payment": {
    "network": "base",
    "chainId": 8453,
    "asset": "USDC",
    "contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xf9bF4a59308C3b3026F411AA9Ab4F12b6c21159f"
  },
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "authentication": {
    "schemes": [
      "bearer"
    ],
    "credentials": null
  },
  "provider": {
    "organization": "CheapestInference",
    "url": "https://cheapestinference.com"
  },
  "supportsAuthenticatedExtendedCard": false
}