Slumber

Terminal API client configured entirely in YAML

About Slumber

A terminal user interface API client that defines all requests in a single YAML configuration file, supporting templating, chains and environments for reproducible API workflows in the shell. Because the code is openly available, it can be audited, extended and run on private infrastructure, which makes it attractive to teams with privacy or compliance needs. It is commonly adopted through containers or packages, evaluated against commercial alternatives and kept because it solves a focused problem reliably at scale.

Slumber key facts

Category: Developer Tools
Pricing: Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas: api client, tui, yaml, terminal
Official site: slumber.lucaspickering.me

About the Developer Tools category

Editors, platforms, and services developers rely on to build and ship software. The Developer Tools category on Tools Hub currently lists 738 tools. Alongside Slumber, it includes Kreya, Yaak, Firecamp, RapiDoc.

FreeDeveloper Toolsapi-clienttuiyamlterminal

More in Developer Tools

Comparing tools in the Developer Tools category? These related listings are worth a look: Kreya — gRPC and REST client with strong autocompletion; Yaak — Desktop API client for REST, GraphQL and gRPC; Firecamp — Multi-protocol API platform for REST, GraphQL and sockets.