Classic Supported Assets API

openapi: 3.0.0
info:
  version: 1.0.0
  title: ShapeShift Public Affiliate Supported Assets API
  description: 'The ShapeShift Public API lets you integrate multi-chain swap functionality into your application. Fetch rates from multiple DEX aggregators and bridges, build executable quotes, and track swaps across supported blockchains.


    ## Base URL


    ```

    https://api.shapeshift.com

    ```


    All endpoints are versioned under `/v1` (e.g. `https://api.shapeshift.com/v1/swap/rates`). This interactive reference is served at `https://api.shapeshift.com/docs`, and the raw OpenAPI document at `https://api.shapeshift.com/docs/json`.


    ## Two ways to integrate


    1. **Swap Widget SDK** — a drop-in React component with built-in UI, wallet connection, and multi-chain support. The fastest path. See the **Swap Widget SDK** section.

    2. **REST API** — call the endpoints directly and build your own UI for full control over UX. See the **REST API Guide** section, then the per-endpoint reference below.


    ## Affiliate tracking (optional)


    Send an `X-Partner-Code` header with your registered partner code (e.g. `your-partner-code`) on the swap endpoints to attribute swaps for affiliate revenue share. The API attributes the swap to your affiliate account and applies your configured fee (bps) automatically. All endpoints work without it — unattributed swaps use the default fee. See the [Affiliate Program guide](https://github.com/shapeshift/web/blob/develop/docs/affiliates.md) for how to obtain a code.


    ## Asset IDs (CAIP-19)


    Assets are identified with [CAIP-19](https://github.com/ChainAgnostic/CAIPs/blob/main/CAIPs/caip-19.md): `{chainId}/{assetNamespace}:{assetReference}`


    - Native ETH: `eip155:1/slip44:60`

    - USDC on Ethereum: `eip155:1/erc20:0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48`

    - Native BTC: `bip122:000000000019d6689c085ae165831e93/slip44:0`


    Chains use [CAIP-2](https://github.com/ChainAgnostic/CAIPs/blob/main/CAIPs/caip-2.md) (e.g. `eip155:1`). Use `GET /v1/chains` and `GET /v1/assets` to discover supported values.


    ## Errors


    Errors return the appropriate HTTP status and a JSON body:


    ```json

    { "error": "Human-readable message", "code": "MACHINE_CODE", "details": [] }

    ```


    `code` and `details` are present where applicable (e.g. `QUOTE_NOT_FOUND`, `TX_HASH_REQUIRED`, `TX_HASH_MISMATCH`, `RATE_LIMIT_EXCEEDED`, validation `details`).


    ## Rate limiting


    Endpoints are rate limited per IP on a fixed 60-second window. A global limit applies across all endpoints, and individual endpoint groups (data, rates, quote, status, affiliate) have their own independent limits on top of it — so a request counts against both. When either is exceeded, the API returns `429` with code `RATE_LIMIT_EXCEEDED` and these headers:


    - `Retry-After` — seconds until the window resets

    - `RateLimit-Limit` — max requests allowed per window

    - `RateLimit-Remaining` — requests remaining in the current window

    - `RateLimit-Reset` — seconds until the window resets


    Back off using `Retry-After` and avoid polling faster than necessary (see the REST API Guide for polling guidance).

    '
servers:
- url: https://api.shapeshift.com
- url: http://localhost:3001
tags:
- name: Supported Assets
paths:
  /v1/assets:
    get:
      operationId: listAssets
      summary: List supported assets
      description: Get a list of all supported assets, optionally filtered by chain.
      tags:
      - Supported Assets
      parameters:
      - schema:
          type: string
          example: eip155:1
        required: false
        name: chainId
        in: query
      - schema:
          type: number
          minimum: 1
          maximum: 1000
          default: 100
          example: 100
        required: false
        name: limit
        in: query
      - schema:
          type: number
          nullable: true
          minimum: 0
          default: 0
          example: 0
        required: false
        name: offset
        in: query
      responses:
        '200':
          description: List of assets
          content:
            application/json:
              schema:
                type: object
                properties:
                  assets:
                    type: array
                    items:
                      $ref: '#/components/schemas/Asset'
                  timestamp:
                    type: number
                required:
                - assets
                - timestamp
        '400':
          description: Invalid query parameters
        '429':
          description: Rate limit exceeded. Includes Retry-After header with seconds until reset.
          headers:
            Retry-After:
              description: Seconds until the rate limit window resets
              schema:
                type: integer
                example: 30
            RateLimit-Limit:
              description: Maximum requests allowed per window
              schema:
                type: integer
                example: 60
            RateLimit-Remaining:
              description: Requests remaining in the current window
              schema:
                type: integer
                example: 0
            RateLimit-Reset:
              description: Seconds until the rate limit window resets
              schema:
                type: integer
                example: 30
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RateLimitError'
        '500':
          description: Internal server error
  /v1/assets/{assetId}:
    get:
      operationId: getAssetById
      summary: Get asset by ID
      description: Get details of a specific asset by its ID (URL encoded).
      tags:
      - Supported Assets
      parameters:
      - schema:
          type: string
          minLength: 1
          example: eip155:1/slip44:60
        required: true
        name: assetId
        in: path
      responses:
        '200':
          description: Asset details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Asset'
        '400':
          description: Invalid asset ID
        '404':
          description: Asset not found
        '429':
          description: Rate limit exceeded. Includes Retry-After header with seconds until reset.
          headers:
            Retry-After:
              description: Seconds until the rate limit window resets
              schema:
                type: integer
                example: 30
            RateLimit-Limit:
              description: Maximum requests allowed per window
              schema:
                type: integer
                example: 60
            RateLimit-Remaining:
              description: Requests remaining in the current window
              schema:
                type: integer
                example: 0
            RateLimit-Reset:
              description: Seconds until the rate limit window resets
              schema:
                type: integer
                example: 30
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RateLimitError'
        '500':
          description: Internal server error
  /v1/assets/count:
    get:
      operationId: getAssetCount
      summary: Get asset count
      description: Get the total number of supported assets, optionally filtered by chain.
      tags:
      - Supported Assets
      parameters:
      - schema:
          type: string
          example: eip155:1
        required: false
        name: chainId
        in: query
      responses:
        '200':
          description: Asset count
          content:
            application/json:
              schema:
                type: object
                properties:
                  count:
                    type: number
                    example: 5000
                  timestamp:
                    type: number
                required:
                - count
                - timestamp
        '400':
          description: Invalid query parameters
        '429':
          description: Rate limit exceeded. Includes Retry-After header with seconds until reset.
          headers:
            Retry-After:
              description: Seconds until the rate limit window resets
              schema:
                type: integer
                example: 30
            RateLimit-Limit:
              description: Maximum requests allowed per window
              schema:
                type: integer
                example: 60
            RateLimit-Remaining:
              description: Requests remaining in the current window
              schema:
                type: integer
                example: 0
            RateLimit-Reset:
              description: Seconds until the rate limit window resets
              schema:
                type: integer
                example: 30
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/RateLimitError'
        '500':
          description: Internal server error
components:
  schemas:
    RateLimitError:
      type: object
      properties:
        error:
          type: string
          example: Too many requests, please try again later
        code:
          type: string
          enum:
          - RATE_LIMIT_EXCEEDED
          example: RATE_LIMIT_EXCEEDED
      required:
      - error
      - code
    Asset:
      type: object
      properties:
        assetId:
          type: string
          example: eip155:1/slip44:60
        chainId:
          type: string
          example: eip155:1
        name:
          type: string
          example: Ethereum
        symbol:
          type: string
          example: ETH
        precision:
          type: number
          example: 18
        color:
          type: string
          example: '#5C6BC0'
        icon:
          type: string
          example: https://assets.coincap.io/assets/icons/eth@2x.png
        networkName:
          type: string
          example: Ethereum
        networkColor:
          type: string
          example: '#5C6BC0'
        networkIcon:
          type: string
          example: https://assets.coincap.io/assets/icons/eth@2x.png
        explorer:
          type: string
          example: https://etherscan.io
        explorerAddressLink:
          type: string
          example: https://etherscan.io/address/
        explorerTxLink:
          type: string
          example: https://etherscan.io/tx/
        relatedAssetKey:
          type: string
          nullable: true
      required:
      - assetId
      - chainId
      - name
      - symbol
      - precision
      - color
      - icon
      - explorer
      - explorerAddressLink
      - explorerTxLink
      - relatedAssetKey