{
  "x402Version": 2,
  "id": 36593,
  "slug": "36593",
  "resource": "https://aether-x402.vercel.app/v1/base/allowance",
  "description": "ERC-20 allowance check on Base: how much a spender is still approved to move from an owner's token balance, and whether the approval is unlimited. Run before a swap, an approve or a revoke. Input: token, owner, spender",
  "type": "http",
  "serviceName": "Aether",
  "resourceType": "Security",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0x2B77a25a8308c30AE37781b8a0D2A21C6211e812",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "2000",
      "amountUsd": 0.002,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "owner": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
            "spender": "0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24",
            "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
          },
          "bodyType": "json",
          "method": "POST",
          "type": "http"
        },
        "output": {
          "example": {
            "formatted": "0",
            "raw": "0",
            "unlimited": false
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "additionalProperties": false,
            "properties": {
              "body": {
                "additionalProperties": false,
                "properties": {
                  "owner": {
                    "pattern": "^0x[0-9a-fA-F]{40}$",
                    "type": "string"
                  },
                  "spender": {
                    "pattern": "^0x[0-9a-fA-F]{40}$",
                    "type": "string"
                  },
                  "token": {
                    "pattern": "^0x[0-9a-fA-F]{40}$",
                    "type": "string"
                  }
                },
                "required": [
                  "token",
                  "owner",
                  "spender"
                ],
                "type": "object"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              },
              "method": {
                "enum": [
                  "POST"
                ],
                "type": "string"
              },
              "type": {
                "const": "http",
                "type": "string"
              }
            },
            "required": [
              "type",
              "method",
              "bodyType",
              "body"
            ],
            "type": "object"
          },
          "output": {
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              "example": {
                "type": "object"
              },
              "type": {
                "type": "string"
              }
            },
            "required": [
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            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "tags": [
    "base",
    "erc20",
    "allowance",
    "approval",
    "security",
    "bazaar"
  ],
  "sourceHost": "aether-x402.vercel.app",
  "lastUpdated": "2026-10-09T12:14:10.357Z",
  "quality": {
    "calls30d": 4,
    "uniquePayers30d": 2,
    "lastCalledAt": "2026-10-09T12:14:10.196Z"
  },
  "metadata": {
    "serviceName": "Aether",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "owner": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
              "spender": "0x4752ba5DBc23f44D87826276BF6Fd6b1C372aD24",
              "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "formatted": "0",
              "raw": "0",
              "unlimited": false
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "owner": {
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    },
                    "spender": {
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    },
                    "token": {
                      "pattern": "^0x[0-9a-fA-F]{40}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "token",
                    "owner",
                    "spender"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "verified": false,
  "featured": false,
  "provider": {
    "host": "aether-x402.vercel.app",
    "manifest_name": "aether-x402.vercel.app",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "example": {},
    "type": "string"
  }
}