OneSimpleAPI

Connects AI assistants to OneSimpleAPI for image, QR, screenshot, PDF, signing, and email-validation tasks.

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UpdatedNov 5, 2026

Install OneSimpleAPI

Pick your client, then add it in one click or paste the config.

Streamable HTTP (Remote)

Server URL

https://onesimpleapi.com/mcp

Remote servers are added in the app, not the config file: Customize → Connectors → Add custom connector, then paste this URL.

Hosted endpoint

Clients with native remote MCP support can connect directly to this URL.

Remote endpoint

https://onesimpleapi.com/mcp

Overview

OneSimpleAPI MCP server connects AI assistants to OneSimpleAPI capabilities for image editing, QR code creation, screenshots, PDFs, PDF signing, and email validation. It exposes these functions through the Model Context Protocol so an assistant can use them within supported workflows. Authentication is available through OAuth or an API key. Choose it when an AI workflow needs to combine assistant-driven actions with OneSimpleAPI services.

Use cases

Edit images from an AI assistant workflow
Generate QR codes on request
Capture screenshots for agent tasks
Sign PDFs through an assistant
Validate email addresses

Key features

Image editing
QR code generation
Screenshot capabilities
PDF handling
PDF signing
Email validation

Security & health

What it can reach and how reliably it runs — from our own checks, not the maintainer’s claims.

ActiveLast checked 5h ago

Recent health check succeeded.

How OneSimpleAPI works

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.

Read the full README

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Frequently Asked Questions about OneSimpleAPI

OneSimpleAPI is an MCP server that connects AI assistants to OneSimpleAPI for image editing, QR code generation, screenshots, PDF handling, PDF signing, and email validation. It supports OAuth and API-key authentication, making these OneSimpleAPI capabilities available as tools for compatible AI assistant workflows.

Use OAuth or an API key to authenticate the connection. OneSimpleAPI supports both authentication methods for connecting AI assistants to its image, QR code, screenshot, PDF, signing, and email-validation capabilities.

You can edit images, create QR codes, work with screenshots and PDFs, sign PDFs, and validate email addresses. These OneSimpleAPI capabilities are exposed to AI assistants through MCP.

Yes, PDF signing is one of the capabilities exposed through the OneSimpleAPI MCP server. The connection also covers other PDF operations alongside image editing, QR codes, screenshots, and email validation.

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