Writer KG API

The KG API API from Writer — 5 operation(s) for kg api.

Operations 8

GET /v1/graphs List graphs #
POST /v1/graphs Create graph #
POST /v1/graphs/question Question #
GET /v1/graphs/{graph_id} Retrieve graph #
PUT /v1/graphs/{graph_id} Update graph #
DELETE /v1/graphs/{graph_id} Delete graph #
POST /v1/graphs/{graph_id}/file Add file to graph #
DELETE /v1/graphs/{graph_id}/file/{file_id} Remove file from graph #

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.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/writer-kg-api-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

writer-kg-api-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: KG API
  version: '1.0'
servers:
- url: https://api.writer.com
security:
- bearerAuth: []
tags:


# --- truncated at 32 KB (36 KB total) ---
# Full source: https://raw.githubusercontent.com/api-evangelist/writer/refs/heads/main/openapi/writer-kg-api-api-openapi.yml