FetchSandbox

Category

Developer Tools

Launched

July 12, 2026

Pricing

freemium

Founder

Raj Nagulapalle

Website

fetchsandbox.com

FetchSandbox is a sandbox environment for testing API integrations, designed for both human developers and AI coding agents. It provides pre configured APIs (Stripe, GitHub, OpenAI, Twilio, and 60+ more) that can be used without burning real API quota or waiting on staging environments. The platform simulates real API behavior including webhooks, retries, failed requests, async events, and state changes. It uses a "memory graph" to remember failure patterns and reproduce bugs deterministically, so that fixes can be verified before production. Users can connect via MCP (Model Context Protocol) to popular IDEs and AI assistants like Cursor, Claude Code, Windsurf, VS Code, and Codex CLI. Each workflow run produces a public, replayable receipt URL that can be shared in PRs or Slack.