oganvil — OG (Open Graph) Image Generation API

Official2 tools

by oganvil

Generates 1200x630 OG social preview images (PNG/SVG). Tools: generate_og_image, get_quota.

app.rowb.oganvil/og-image-api MCP Server

The app.rowb.oganvil/og-image-api MCP server generates Open Graph (OG) social preview images sized 1200x630 in PNG and SVG formats. It provides tools to generate_og_image and check usage via get_quota.

🛠️ Key Features

Generates 1200x630 OG images
Supports PNG and SVG outputs
Tools: generate_og_image, get_quota

🚀 Use Cases

Creating consistent OG previews for social sharing
Producing image assets in formats compatible with different platforms

⚡ Developer Benefits

Centralized image generation via MCP tools
Access to quota information through get_quota

⚠️ Limitations

Described output is limited to 1200x630 size
Only PNG/SVG formats are mentioned

Captured live from the server via tools/list.

generate_og_image

Generate a 1200x630 Open Graph image (PNG or SVG) from a title and tag line. Returns the image as MCP image content plus a hosted render URL. Counts against your monthly unique-image quota.

Parameters3

title	string	required	Headline text rendered large
tag	string	optional	Small subtitle line under the title
format	string	optional	Output format, default png

Raw schema

{
  "type": "object",
  "properties": {
    "title": {
      "type": "string",
      "minLength": 1,
      "maxLength": 180,
      "description": "Headline text rendered large"
    },
    "tag": {
      "description": "Small subtitle line under the title",
      "type": "string",
      "maxLength": 120
    },
    "format": {
      "description": "Output format, default png",
      "type": "string",
      "enum": [
        "png",
        "svg"
      ]
    }
  },
  "required": [
    "title"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

get_quota

Return current monthly usage and plan limit for the authenticated key. Does not consume quota.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "properties": {},
  "$schema": "https://json-schema.org/draft/2020-12/schema"
}

Install

Tools (2)

generate_og_imageget_quota

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://oganvil.rowb.app/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "og-image-api": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://oganvil.rowb.app/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.