CoinList Token API
The Token API from CoinList — 2 operation(s) for token.
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OpenAPI Specification
openapi: 3.2.0
info:
title: Frontline DocumentSubmissions Token API
version: 0.1.0
servers:
- url: https://api.coinlist.co
variables: {}
security: []
tags:
- name: Token
paths:
/v1/token/allowance:
get:
callbacks: {}
description: Reads allowance(owner, spender) on the ERC-20 token contract. Can be used to determine whether an approval transaction is needed before a swap or token sale.
operationId: getTokenAllowance
parameters:
- description: The ERC-20 token contract address
in: query
name: token_address
required: true
schema:
example: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48'
type: string
x-struct: null
x-validate: null
- description: The address owning the tokens
in: query
name: owner
required: true
schema:
example: '0x8ba1f109551bd432803012645ac136ddd64dba72'
type: string
x-struct: null
x-validate: null
- description: The address allowed to spend the tokens
in: query
name: spender
required: true
schema:
example: '0x742d35cc6634c0532925a3b844bc9e7595f0beb1'
type: string
x-struct: null
x-validate: null
- description: The EVM chain to read from, e.g. ethereum_mainnet, ethereum_sepolia, base_mainnet or base_sepolia
in: query
name: chain
required: true
schema:
example: ethereum_sepolia
type: string
x-struct: null
x-validate: null
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/TokenAllowance'
description: Successful response.
default:
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
description: Error response.
security:
- OAuth2: []
summary: Get the on-chain ERC-20 allowance for a token, owner and spender
tags:
- Token
/v1/token/balance:
get:
callbacks: {}
description: Reads balanceOf(owner) on the ERC-20 token contract. Used to display the balance of the connected wallet the user will pay with.
operationId: getTokenBalance
parameters:
- description: The ERC-20 token contract address
in: query
name: token_address
required: true
schema:
example: '0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48'
type: string
x-struct: null
x-validate: null
- description: The address owning the tokens
in: query
name: owner
required: true
schema:
example: '0x8ba1f109551bd432803012645ac136ddd64dba72'
type: string
x-struct: null
x-validate: null
- description: The EVM chain to read from, e.g. ethereum_mainnet, ethereum_sepolia, base_mainnet or base_sepolia
in: query
name: chain
required: true
schema:
example: ethereum_sepolia
type: string
x-struct: null
x-validate: null
responses:
'200':
content:
application/json:
schema:
$ref: '#/components/schemas/TokenBalance'
description: Successful response.
default:
content:
application/json:
schema:
$ref: '#/components/schemas/Error'
description: Error response.
security:
- OAuth2: []
summary: Get the on-chain ERC-20 balance of an address
tags:
- Token
components:
schemas:
TokenAllowance:
additionalProperties: false
description: Current on-chain ERC-20 allowance for a token, owner and spender.
properties:
allowance:
description: The allowance as a uint256 decimal string in the token's smallest unit
example: '1000000'
type: string
x-struct: null
x-validate: null
object:
description: String representing the object's type. Objects of the same type share the same value.
enum:
- token_allowance
type: string
x-struct: null
x-validate: null
required:
- object
- allowance
title: TokenAllowance
type: object
x-struct: Elixir.FrontlineAPIWeb.OpenApi.Schemas.TokenAllowance
x-validate: null
TokenBalance:
additionalProperties: false
description: Current on-chain ERC-20 balance of an owner address.
properties:
balance:
description: The balance as a uint256 decimal string in the token's smallest unit
example: '1000000'
type: string
x-struct: null
x-validate: null
object:
description: String representing the object's type. Objects of the same type share the same value.
enum:
- token_balance
type: string
x-struct: null
x-validate: null
required:
- object
- balance
title: TokenBalance
type: object
x-struct: Elixir.FrontlineAPIWeb.OpenApi.Schemas.TokenBalance
x-validate: null
Error:
additionalProperties: false
properties:
code:
description: A human-readable message providing more details about the error.
type: string
x-struct: null
x-validate: null
errors:
additionalProperties:
items:
type: string
x-struct: null
x-validate: null
type: array
x-struct: null
x-validate: null
type: object
x-struct: null
x-validate: null
event_id:
description: The unique identifier for the error event. This is useful for tracking and debugging.
type: string
x-struct: null
x-validate: null
message:
description: For some errors that could be handled programmatically, a short string indicating the error code reported.
type: string
x-struct: null
x-validate: null
type:
description: The type of error returned. One of `api_error`, `invalid_request_error`
enum:
- api_error
- invalid_request_error
type: string
x-struct: null
x-validate: null
required:
- type
- message
title: Error
type: object
x-struct: Elixir.FrontlineAPIWeb.OpenApi.Schemas.ApiError
x-validate: null
securitySchemes:
OAuth2:
description: OAuth 2.0 authorization and token endpoints
flows:
authorizationCode:
authorizationUrl: /oauth/authorize
refreshUrl: /oauth/token
scopes: {}
tokenUrl: /oauth/token
clientCredentials:
refreshUrl: /oauth/token
scopes: {}
tokenUrl: /oauth/token
type: oauth2
TokenAuth:
description: Session token for user authentication during OAuth authorization
scheme: bearer
type: http