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plemeo MCP for ChatGPT

Overview

The plemeo MCP for ChatGPT app connects ChatGPT by OpenAI directly to your plemeo.ai workspace. Once connected, you can use plemeo.ai's AI capabilities — text generation, OCR, and image analysis — without leaving the ChatGPT conversation.

This integration uses the Model Context Protocol (MCP), an open standard for connecting AI assistants to external tools and data sources. ChatGPT supports MCP natively through its Apps SDK.

Available Tools

ToolDescription
Generate ResponseAI-powered text generation with access to your organisation's private knowledge base and web search
Process OCRExtract text from images (PNG, JPG, TIFF) using AI-powered vision OCR
Analyze ImageAI-powered image analysis — describe, evaluate, or answer questions about image content

Requirements

  • An active plemeo.ai Lite subscription
  • A ChatGPT Plus, Pro, Business, or Enterprise account (Developer Mode required)
  • A plemeo.ai API key for the MCP app (found in your Apps dashboard)

Setup

  1. Open ChatGPT
  2. Go to SettingsDeveloper Mode (beta) and enable it
  3. Under Apps & Connectors, add a new MCP app with the server URL:
    https://mcp.plemeo.ai/sse
  4. Configure OAuth authentication:
    • Authorization URL: https://mcp.plemeo.ai/oauth/authorize
    • Token URL: https://mcp.plemeo.ai/oauth/token
  5. Click Connect — ChatGPT will redirect you to the plemeo.ai authorization page
  6. Enter your API key (found in the plemeo.ai Apps dashboard under "plemeo MCP for ChatGPT")
  7. Click Authorize — you're connected

Once connected, ChatGPT will automatically use the plemeo.ai tools when your prompts are relevant to them.

Usage Examples

Query your knowledge base

Prompt: "Use plemeo.ai to summarise our company's current refund policy based on our internal documents."

ChatGPT calls generate_response, which searches your organisation's private knowledge base and returns an AI-generated summary referencing your internal source documents.

Extract text from a document

Prompt: "Use plemeo.ai to extract the text from this scanned invoice: https://example.com/invoice.png"

ChatGPT calls process_ocr, which downloads the image, runs AI-powered vision OCR, and returns the extracted text including detected form fields and values.

Analyze an image

Prompt: "Use plemeo.ai to analyze this product photo and tell me if the packaging is damaged: https://example.com/photo.jpg"

ChatGPT calls analyze_image, which downloads the image and returns a detailed AI-generated description answering your specific question.

Finding Your API Key

  1. Log in to plemeo.ai
  2. Navigate to Apps in the sidebar
  3. Find plemeo MCP for ChatGPT in your apps list
  4. Your API key is displayed in the app details

Troubleshooting

ProblemSolution
"Invalid redirect URI" during setupEnsure you are using the /sse endpoint, not /mcp
Connection timeout on image analysisLarge images or complex analysis may take up to 60 seconds — wait for the response
"Unauthorized" errorYour API key may have expired — generate a new one in the Apps dashboard
Tools not appearing in ChatGPTMake sure Developer Mode is enabled in ChatGPT settings

Support