Solidus Labs Chain API API

openapi: 3.2.0
info:
  title: Chain Chain API API
  version: '2.0'
  description: Published by Solidus Labs as the TokenSniffer API. Assembled verbatim from the OpenAPI 3.1.0 fragments Solidus Labs publishes on each operation page of https://tokensniffer.readme.io/reference/ (llms.txt markdown rendering). No operation, parameter, schema or example was authored by API Evangelist.
  contact:
    name: TokenSniffer Support
    url: https://tokensniffer.com/contact
  x-provider: Solidus Labs
  x-product: TokenSniffer
servers:
- url: https://tokensniffer.com/api/v2/chains
security:
- {}
tags:
- name: Chain API
paths:
  /:
    get:
      summary: List Supported Chains
      description: Get a list of supported blockchains including chain IDs.  API key not required.
      operationId: get-supported-networks
      responses:
        '200':
          description: '200'
          content:
            application/json:
              examples:
                Result:
                  value: "{\n  \"total\": 12,\n  \"result\": [\n    {\n      \"id\": 1,\n      \"name\": \"Ethereum\",\n      \"alias\": \"eth\"\n    },\n    {\n      \"id\": 10,\n      \"name\": \"Optimism\",\n      \"alias\": \"opt\"\n    },\n    {\n      \"id\": 25,\n      \"name\": \"Cronos\",\n      \"alias\": \"cronos\"\n    },\n    {\n      \"id\": 56,\n      \"name\": \"BNB Smart Chain\",\n      \"alias\": \"bsc\"\n    },\n    {\n      \"id\": 100,\n      \"name\": \"Gnosis\",\n      \"alias\": \"xdai\"\n    },\n    {\n      \"id\": 137,\n      \"name\": \"Polygon\",\n      \"alias\": \"poly\"\n    },\n    {\n      \"id\": 250,\n      \"name\": \"Fantom\",\n      \"alias\": \"ftm\"\n    },\n    {\n      \"id\": 321,\n      \"name\": \"KuCoin Community Chain\",\n      \"alias\": \"kcc\"\n    },\n    {\n      \"id\": 42161,\n      \"name\": \"Arbitrum\",\n      \"alias\": \"arb\"\n    },\n    {\n      \"id\": 42262,\n      \"name\": \"Oasis\",\n      \"alias\": \"oasis\"\n    },\n    {\n      \"id\": 43114,\n      \"name\": \"Avalanche\",\n      \"alias\": \"avax\"\n    },\n    {\n      \"id\": 1666600000,\n      \"name\": \"Harmony\",\n      \"alias\": \"harmony\"\n    }\n  ]\n}"
              schema:
                type: object
                properties:
                  total:
                    type: integer
                    example: 12
                    default: 0
                  result:
                    type: array
                    items:
                      type: object
                      properties:
                        id:
                          type: integer
                          example: 1
                          default: 0
                        name:
                          type: string
                          example: Ethereum
                        alias:
                          type: string
                          example: eth
      deprecated: false
      security: []
      x-source-doc: https://tokensniffer.readme.io/reference/get-supported-networks
      tags:
      - Chain API
x-evidence:
  fetched: '2026-08-05'
  method: searched
  sources:
  - https://tokensniffer.readme.io/reference/get-supported-networks
  note: Each source page embeds a "# OpenAPI definition" JSON block authored by the provider in ReadMe; those blocks were parsed and merged by shared info.title + servers[].url. Nothing added.