Work with this as data
Every API here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for apis
7 MCP tools reach this
find_apisBrowse and filter every API in the catalog.get_api_artifactsOne API's artifacts, grouped by type.get_openapiThe primary OpenAPI for this API.find_similar_apisAPIs that look like this one.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This API
curl "https://apis.io/api/v1/apis/tether-chains-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"Discovery needs no key. Ratings and market analysis are Pro.
OpenAPI Specification
openapi: 3.2.0
info:
title: Tether Chains API
version: 1.0.0
description: 'Operations tagged Chains across 2 of this provider''s published API definitions: tether-chains-api-openapi.yml, tether-wdk-indexer-openapi-original.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://wdk-api.tether.io
description: Base URL declared by the provider in apis.yml (roadmap#122).
tags:
- name: Chains
description: Supported blockchains and token discovery
paths:
/api/v1/chains:
get:
summary: Get supported blockchains and tokens
tags:
- Chains
description: Returns the list of all supported blockchains and their available tokens. Endpoint to discover valid blockchain and token combinations before calling other endpoints. This endpoint reads directly from the server configuration and requires no authentication.
responses:
'200':
description: List of supported blockchains with their tokens and case sensitivity rules
content:
application/json:
schema:
description: List of supported blockchains with their tokens and case sensitivity rules
type: object
properties:
chains:
type: array
description: All supported blockchains.
items:
type: object
properties:
name:
type: string
description: Blockchain identifier used as the {blockchain} path parameter in other endpoints.
tokens:
type: array
description: Token identifiers available on this blockchain, used as the {token} path parameter.
items:
type: string
caseSensitive:
type: object
description: Case sensitivity rules. If present, addresses are preserved as-is (case-sensitive). If absent, addresses are automatically lowercased.
properties:
address:
oneOf:
- type: boolean
- type: string
description: Indicates address case sensitivity. When the caseSensitive object is present, addresses are not lowercased regardless of this field value.
tx:
type: boolean
description: true = transaction hashes are case-sensitive.
block:
type: boolean
description: true = block identifiers are case-sensitive.
additionalProperties: false
required:
- name
- tokens
additionalProperties: false
additionalProperties: false
'500':
description: Internal Server Error - indexer service unavailable or unexpected failure
content:
application/json:
schema:
description: Internal Server Error - indexer service unavailable or unexpected failure
type: object
properties:
error:
type: string
description: Error type
message:
type: string
description: Error details
status:
type: number
description: HTTP status code
additionalProperties: false
servers:
- url: https://wdk-api.tether.io
description: Base URL declared by the provider in apis.yml (roadmap#122).
components:
securitySchemes:
ApiKeyAuth:
type: apiKey
in: header
name: X-API-KEY
description: API key obtained via the registration form. Include in the X-API-KEY header for all authenticated requests.
x-refined-from:
- tether-chains-api-openapi.yml
- tether-wdk-indexer-openapi-original.yml