# OneSimpleAPI [Health: Active]

**Category:** 💻 Developer Tools  
**Repository:** https://onesimpleapi.com/docs/mcp  
**Views:** 4  
**Installs:** 0  
**Upvotes:** 0  
**Directory Page:** https://allmcps.com/mcp/onesimpleapi

## Description
Connect AI assistants to OneSimpleAPI for image editing, QR codes, screenshots, PDFs, PDF signing, email validation and more, with OAuth or API-key authentication.

## Claude Desktop Quick Installation
No confirmed install details yet, so no config is published. Follow the setup steps in the repository above.

## Documentation

## What OneSimpleAPI MCP server does

OneSimpleAPI MCP server gives AI assistants access to a set of OneSimpleAPI services through MCP. Its supported scope includes image editing, QR code generation, screenshot capture, PDF-related operations, PDF signing, and email validation.

The server is relevant when an assistant needs to perform or request these operations as part of a larger workflow. For example, an assistant could use the exposed capabilities to work with an image, create a QR code, capture a screenshot, process a PDF, sign a PDF, or validate an email address. The available service areas cover both content handling and utility tasks.

## How it works

An AI assistant connects to OneSimpleAPI through the MCP server rather than integrating each listed service separately. MCP provides the interface through which the assistant can access the OneSimpleAPI capabilities.

Authentication can use OAuth or an API key. These are the two authentication options identified for the connection. The appropriate choice depends on how the client and OneSimpleAPI access are configured, but both methods are supported by the integration.

Once connected and authenticated, the assistant can use the server for the supported OneSimpleAPI operations. The server is therefore suited to agent workflows that need service-backed actions instead of text-only responses.

## Setup and configuration

Configure the MCP connection with either OAuth authentication or an API key. Authentication is required to connect the assistant to OneSimpleAPI services.

The integration is intended for use with AI assistants that support MCP. Client-specific configuration details, command examples, and environment variable names are not included here, so setup should follow the connection process associated with the chosen MCP client and OneSimpleAPI authentication method.

## Tools and capabilities

The server covers these OneSimpleAPI service areas:

- Image editing
- QR code creation
- Screenshot handling
- PDF operations
- PDF signing
- Email validation

These capabilities make the server applicable to workflows involving visual assets, documents, signed files, QR codes, screenshots, and email-address checks. The integration brings those categories into an assistant-accessible MCP connection rather than limiting the assistant to conversational output.

The two supported authentication approaches are OAuth and API-key authentication. Select the approach that matches the access model used for the assistant integration.

_Full upstream README: https://allmcps.com/mcp/onesimpleapi/readme_