More room
for useful work.

{
  "program": "Wever Labs subscriptions",
  "contract_url": "https://weverlabs.com/api/subscription-contract",
  "dashboard_url": "https://weverlabs.com/subscriptions/dashboard/",
  "mcp_endpoint": "https://weverlabs.com/mcp",
  "mcp_tool": "wever_subscription-rail",
  "rail_endpoint": "https://weverlabs.com/api/subscription-rail",
  "rail_method": "POST",
  "dashboard_read_endpoint": "https://weverlabs.com/api/subscription-dashboard",
  "dashboard_read_body": {
    "action": "dashboard"
  },
  "dashboard_read": "Free signed snapshot of only the authenticated wallet's stored subscriptions, quota, receipt history and available plans. No wallet selector.",
  "network": "eip155:8453",
  "currency": "USDC",
  "plans": [
    {
      "name": "single-tool",
      "price_atomic": "3000000",
      "quota": 300,
      "cycle_seconds": 2592000,
      "scope": "one selected paid tool"
    },
    {
      "name": "all-access",
      "price_atomic": "15000000",
      "quota": 2000,
      "cycle_seconds": 2592000,
      "scope": "eligible paid tools"
    }
  ],
  "purchase_fields": [
    "action=subscribe",
    "plan",
    "purchase_id",
    "tool for single-tool"
  ],
  "purchase_id": "Fresh 64-character lowercase hexadecimal ID; retain the same ID for all retries of this purchase",
  "tool": "MCP tool name such as wever_receipt-passport. The subscribe API maps it to /api/receipt-passport. Choose from the current available paid-tool paths in the signed dashboard response.",
  "purchase_payment": "Use the real x402 402 challenge. It binds /api/subscription-rail?purchase=<purchase_id> and the wever-subscription extension to this purchase. Exact plan price plus 0 or 100000 atomic USDC rail access fee, depending on the existing shared free-call allowance.",
  "rail_api_price_atomic": "100000",
  "manual_renewal": true,
  "auto_charge": false,
  "renewal": "A new signed purchase after the current cycle ends. No early renewal or new same-scope cycle while active, including when its quota is exhausted.",
  "cancel_fields": [
    "action=cancel",
    "subscription_id"
  ],
  "cancellation": "Records cancel_at_period_end. Remaining prepaid quota stays available through the original cycle end. No refund.",
  "cancel_billing": "Existing 0.10 USDC rail call fee, subject to existing allowance or eligible subscription coverage. Dashboard reads are free.",
  "fallback": "Expired or exhausted coverage returns to normal per-call billing, including the normal 402 payment challenge when required.",
  "excluded": [
    "Subscription purchases",
    "Escrow principal"
  ],
  "verify_fields": [
    "action=verify_receipt",
    "receipt"
  ],
  "verification": "Ed25519 signature plus exact wallet-owned retained record. Browser independently checks receipt signatures with the published public key. Verification does not extend or replenish coverage.",
  "retry": "Retain the exact serialized request body, purchase ID or subscription ID, original proof nonce, quote and any signed payment authorization. Re-sign only the wallet proof with a fresh timestamp. Do not replace an unresolved payment.",
  "wallet_proof": {
    "header": "X-Wever-Wallet-Proof",
    "header_encoding": "Base64 of UTF-8 JSON with wallet, timestamp, nonce, signature",
    "wallet": "Authenticated EOA wallet; no contract-wallet support",
    "timestamp": "Integer Unix seconds within 300 seconds of server time",
    "nonce": "32 to 64 lowercase hexadecimal characters, retained for unresolved retries",
    "signature": "0x-prefixed 65-byte EIP-191 personal_sign signature",
    "message_encoding": "Resolve each prefix/value object as prefix plus the described actual value; join the eight lines with LF and no trailing LF.",
    "message_lines": [
      "Wever Agent World free call v1",
      "Origin: https://weverlabs.com",
      "Network: eip155:8453",
      "Method: POST",
      {
        "prefix": "Path: ",
        "value": "Exact request API path, /api/subscription-dashboard or /api/subscription-rail, without query"
      },
      {
        "prefix": "Body-SHA256: ",
        "value": "Lowercase hexadecimal SHA-256 of the exact UTF-8 request body"
      },
      {
        "prefix": "Timestamp: ",
        "value": "Same integer timestamp as the proof, in decimal"
      },
      {
        "prefix": "Nonce: ",
        "value": "Exact nonce from the proof"
      }
    ]
  }
}