Kanban Tool Subtasks.json API
The Subtasks.json API from Kanban Tool — 1 operation(s) for subtasks.json.
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/kanban-subtasks-json-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"Discovery needs no key. Ratings and market analysis are Pro.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.
OpenAPI Specification
openapi: 3.2.0
info:
title: Kanban Tool API v3 Attachments Subtasks.json API
description: Minimal OpenAPI 3.1 description of the Kanban Tool REST API v3 covering users, boards, tasks, subtasks, comments, attachments, and time trackers.
version: 3.0.0
servers:
- url: https://YOUR_DOMAIN.kanbantool.com/api/v3
description: Kanban Tool account API base
tags:
- name: Subtasks.json
paths:
/subtasks.json:
post:
summary: Create subtask
operationId: createSubtask
requestBody:
content:
application/json:
schema:
type: object
responses:
'201':
description: Created
tags:
- Subtasks.json
x-generated-from: https://kanbantool.com/developer/api-v3
x-generated-by: claude-crawl-2026-05-08