TotalShiftLeft Sandbox vs What The Commit

TotalShiftLeft's Sandbox (self-titled "API Learning Sandbox") is a free hands-on playground for practicing REST, GraphQL, and SOAP against the same underlying data store — a session is auto-created on first request (no signup) and seeded with demo users, products, and orders that expire after 30 minutes. Beyond plain access, it supports three optional auth flows for testing auth code paths: an x-api-key header, a JWT obtained from POST /auth/token, and an OAuth2 client-credentials exchange at POST /auth/oauth. Query params let callers simulate real-world conditions — added latency, forced error codes, or random failures — making it a fixture for testing API client resilience rather than just CRUD happy paths.

What The Commit serves an endless stream of joke commit messages drawn from a fixed pool, built to be piped into git commit -m when you can't think of anything better. The plain-text /index.txt endpoint returns one message per request for shell scripting and git aliases, and a live /index.json endpoint wraps the same message with a stable hash and permalink. It's free, keyless, and carries no rate limit or pricing page.