{
  "openapi": "3.1.0",
  "info": {
    "title": "Private Payments API",
    "version": "0.1.0",
    "description": "Verify the validator-scoped transfer queue for a mint and force one crank attempt."
  },
  "servers": [
    {
      "url": "https://payments.magicblock.app",
      "description": "Mainnet - Private Payments API"
    }
  ],
  "paths": {
    "/v1/spl/transfer-queue/ensure-crank": {
      "post": {
        "summary": "Ensure Transfer Queue Crank",
        "description": "After setup confirmation, verify that the validator-scoped transfer queue exists for a mint and force one crank attempt. Used to make sure queued private transfers make progress.",
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "properties": {
                  "mint": {
                    "type": "string",
                    "example": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
                  },
                  "cluster": {
                    "anyOf": [
                      { "type": "string", "enum": ["mainnet", "devnet"] },
                      { "type": "string" }
                    ],
                    "example": "mainnet",
                    "description": "Optional. Cluster selector or custom http(s) RPC URL."
                  },
                  "validator": {
                    "type": "string",
                    "example": "MAS1Dt9qreoRMQ14YQuhg8UTZMMzDdKhmkZMECCzk57",
                    "description": "Optional. Defaults to the selected ephemeral RPC identity resolved via `getIdentity`."
                  }
                },
                "required": ["mint"],
                "example": {
                  "mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                  "validator": "MAS1Dt9qreoRMQ14YQuhg8UTZMMzDdKhmkZMECCzk57"
                }
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Forced transfer queue crank result",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "properties": {
                    "mint": { "type": "string" },
                    "validator": { "type": "string" },
                    "transferQueue": { "type": "string" },
                    "crankSignature": { "type": "string" }
                  },
                  "required": ["mint", "validator", "transferQueue", "crankSignature"]
                }
              }
            }
          },
          "400": { "description": "Crank error" },
          "422": { "description": "Validation error" }
        }
      }
    }
  }
}