# Flit > Flit (flitlink.com) shortens URLs, generates QR codes, and reports click analytics. > Short links serve from flitl.ink and flit.ing (custom domains on the Pro plan, $7/mo; > the free plan allows 50 links/month). Links keep redirecting even after cancellation. Authentication: the API and MCP server require the Pro plan ($7/mo). Create an API key at https://flitlink.com/app/api-keys and send it as `Authorization: Bearer flit_sk_...`. Permissions: links:read, links:write, stats:read. ## API - [API documentation](https://flitlink.com/docs/api): curl examples, errors, rate limits - [OpenAPI 3.1 spec](https://flitlink.com/openapi/v1.json): machine-readable endpoint list ## MCP - MCP server (Streamable HTTP): https://flitlink.com/mcp — tools: create_link, list_links, get_link_stats, delete_link. Same Bearer API-key auth. ## Product - [Pricing](https://flitlink.com/pricing): free 50 links/mo; Pro $7/mo, everything included - [Flit vs Bitly](https://flitlink.com/vs/bitly): plain-numbers comparison (also /vs/rebrandly, /vs/tinyurl, /vs/short-io, /vs/dub) - [Free QR code generator](https://flitlink.com/tools/qr-code-generator): no account needed - [Free UTM builder](https://flitlink.com/tools/utm-builder): runs client-side