Api Endpoint

Base Token Facts

Get on-chain facts about a Base token contract

Open interactive test console

Offering

Provider: base-facts.yankii.fr
Method: POST
Offering type: Api Endpoint
Transport type: http
Category: Blockchain And Crypto
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://base-facts.yankii.fr/v1/facts
MIME type: Not provided
First seen: 2026-10-16T01:50:24.663Z
Last seen: 2026-11-01T15:06:40.170Z
Tags: Base, Token, Ethereum, DeFi, Onchain

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1: 0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0x40661D56c2Bf416c5946A8b21098eaF8D33459A2"
  }
]

Observed health

Status: Healthy
Latest latency: 313 ms
Average latency: 473 ms
HTTP status: 200
Last checked: 2026-11-01T11:21:26.818Z
Reachability: 100% over 13 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "additionalProperties": false,
  "properties": {
    "body": {
      "properties": {
        "token": {
          "description": "Token contract address (0x-prefixed hex, 20 bytes)",
          "type": "string"
        }
      },
      "required": [
        "token"
      ],
      "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 schema

{
  "properties": {
    "example": {
      "properties": {
        "adminFunctionsDetected": {
          "additionalProperties": {
            "type": "boolean"
          },
          "type": "object"
        },
        "blockNumber": {
          "type": "string"
        },
        "contractType": {
          "enum": [
            "ERC20",
            "other",
            "EOA"
          ],
          "type": "string"
        },
        "erc20": {
          "properties": {
            "decimals": {
              "type": "integer"
            },
            "name": {
              "type": "string"
            },
            "symbol": {
              "type": "string"
            },
            "totalSupply": {
              "type": "string"
            }
          },
          "type": "object"
        },
        "isContract": {
          "type": "boolean"
        },
        "owner": {
          "type": "string"
        },
        "proxy": {
          "properties": {
            "implementation": {
              "type": "string"
            },
            "isProxy": {
              "type": "boolean"
            },
            "standard": {
              "enum": [
                "EIP-1967",
                "ZeppelinOS"
              ],
              "type": "string"
            }
          },
          "type": "object"
        },
        "source": {
          "enum": [
            "base-mainnet-rpc",
            "base-sepolia-rpc"
          ],
          "type": "string"
        }
      },
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}