Lucid

Lucid Create Diagram API

The CreateDiagram API from Lucid — 1 operation(s) for creatediagram.

Documentation GitHub OpenAPI

Operations 1

Each operation below carries the questions people ask an LLM about it and the instructions they give an agent to run it. Generated by API Evangelist overlay

POST /createDiagram Create a diagram from Mermaid code · Create a new diagram #

Ask an LLM

“Can Lucid turn Mermaid code into a diagram image?”

“Will a Mermaid flowchart come back with a link I can edit in Lucidchart?”

Tell an agent

Create a diagram from Mermaid code {validDiagramCode}.

Render this Mermaid flowchart {validDiagramCode} and give me the edit link.

Documentation

📖

Documentation

https://developer.lucid.co/docs/welcome

📖

APIReference

https://developer.lucid.co/reference/api

📖

APIReference

https://developer.lucid.co/reference/overview-scim

Specifications

⚙

OpenAPI

https://raw.githubusercontent.com/api-evangelist/lucid/refs/heads/main/openapi/lucid-creatediagram-api-openapi.yml

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/lucid:lucid-creatediagram-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.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: Lucid Software ChatGPT Plugin Create Diagram API
  description: An API that allows for diagram creation from a description in Mermaid format.
  version: v1
servers:
- url: https://mlai.lucid.app
tags:
- name: CreateDiagram
paths:
  /createDiagram:
    post:
      operationId: createDiagram
      summary: Create a new diagram
      description: Accepts a JSON object with the diagram to be created, using Mermaid syntax. Returns a link to an image of the diagram. If the mermaid diagram is of type `flowchart`, it will also include a link to edit the diagram in Lucidchart.
      requestBody:
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/createDiagram'
      responses:
        '200':
          description: OK
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/createDiagramResponse'
      tags:
      - CreateDiagram
components:
  schemas:
    createDiagram:
      type: object
      properties:
        validDiagramCode:
          description: "The valid Mermaid code for the diagram. `flowchart` diagrams should be preferred, but all Mermaid diagram types are supported.\nMermaid Guidelines:\n - All node labels should be enclosed in square brackets and double quotes. For example, if you wanted node A to display `[Fe(CN)6]4-`, it should be written as `A[\"[Fe(CN)6]4-\"]`\n - A line from node A to node B is denoted `A --> B`\n - Subgraphs should be used sparingly, and not to enclose an entire diagram\n"
          type: string
      required:
      - validDiagramCode
    createDiagramResponse:
      type: object
      properties:
        imageLink:
          description: The link to the image of the diagram, to be displayed as an embedded image via Markdown.
          type: string
        error:
          description: Any errors encountered while handling the request.
          type: string
        editLink:
          description: A link to an editable version of the diagram in Lucidchart for flowchart diagrams.
          type: string