Is FetchSandbox free?

FetchSandbox may offer paid plans. Check the official website for the latest pricing.

How much does FetchSandbox cost?

Visit the official website of FetchSandbox for the latest pricing details.

Jul 19, 2026

FetchSandbox

Q: What is FetchSandbox?

FetchSandbox is an API integration testing tool that integrates with AI coding assistants via MCP. It provides stateful sandboxes to test webhooks, authentication, and API workflows without using real API quota.

Q: What are the main features of FetchSandbox?

FetchSandbox includes features such as Pre-configured sandboxes for 50+ APIs (Stripe, GitHub, OpenAI, Twilio, etc.), MCP-based integration with AI coding assistants (Cursor, VS Code, Claude Code, Windsurf, Codex), Test webhooks, auth, requests, responses, and error scenarios with realistic simulations, Stateful workflow testing: retains state across requests for complete integration validation, Rapid setup from idea to working integration in minutes without complex configuration.

API integration testing that remembers what breaks

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Overview Product Timeline Pricing Pros & Cons FAQ Reviews MCP Server

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Overview

What is FetchSandbox?

FetchSandbox is an API integration testing tool that plugs into AI coding assistants via MCP. It provides stateful sandboxes for 50+ pre-configured APIs (Stripe, GitHub, OpenAI, Twilio, etc.) to test webhooks, authentication, requests, and responses without consuming real API quota. It integrates with IDEs like Cursor, VS Code, Claude Code, and Windsurf, enabling developers to build and validate integrations quickly.

API integration testing that remembers what breaks

Core Features

Pre-configured sandboxes for 50+ APIs (Stripe, GitHub, OpenAI, Twilio, etc.)

MCP-based integration with AI coding assistants (Cursor, VS Code, Claude Code, Windsurf, Codex)

Test webhooks, auth, requests, responses, and error scenarios with realistic simulations

Stateful workflow testing: retains state across requests for complete integration validation

Rapid setup from idea to working integration in minutes without complex configuration

Popular Use Cases

Testing AI-generated API integrations before deployment
Simulating webhook delivery, retries, and async event workflows
Verifying integration contracts and state changes across multiple API calls
Debugging failure scenarios and edge cases in a safe sandbox environment
Accelerating development of third-party API integrations for SaaS products

How to use

Add the FetchSandbox MCP configuration to your AI coding assistant (Cursor, VS Code, Claude Code, etc.)
Select a pre-configured API sandbox (e.g., Stripe, GitHub) or create a custom integration
Write your integration code using the sandbox endpoints to simulate API requests
Trigger webhooks, retries, and failure events to test edge cases
Validate workflow state and invariants before deploying to production

Product Timeline

To be verified

Pricing

FetchSandbox uses a pricing model. Pricing and features may change over time.

Free

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Pro

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Team

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Enterprise

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