Best REST API tools

Call Claude models through a REST API, official SDKs, and asynchronous batch endpoints.

Collects and exposes resource-usage data for containers running on a host.

Monitor system resources and processes from a terminal or web interface.

A REST API for querying air-quality locations, sensors, and measurements with geographic and date filters.

Fetch free latest or historical exchange-rate data from a public REST API without an API key.

Read calendars and create or update events through Google Calendar's REST API.

Retrieve current, forecast, and historical weather data in a single coordinate-based request.

Runs open models locally and exposes a developer interface for using them from apps and coding tools.

Read, update, and append spreadsheet cell values from an application.

Compose file-processing jobs from import, conversion, and export tasks.

Turn addresses into coordinates, or coordinates into place details, through a REST API.

Retrieve Spotify catalog data and manage user-authorized library resources.

Search, organize, share, and manage Drive files from an application.

Resolve an IP address to structured location, timezone and network-related fields through a REST endpoint.

Monitor application, database, server, and web-transaction health from one managed console.

Extract text and other visual signals from images through a managed image-analysis API.

Bring projects, tasks, reports, time data, and custom views into one work hub.

A self-hosted dashboard for installing and maintaining packaged web applications on your server.

Trigger personalized postcards, letters, and other physical mail from software.

Deploy root-access Linux, Windows, or FreeBSD servers from a control panel or API.

Self-host an appointment booking page and team calendar, or use the project’s managed hosting.

Query a scholarly research graph of works, authors, sources, institutions, and related entities over a REST API.

Access Microsoft cloud data and services through one REST endpoint and SDKs.

A self-managed engine for full-text search, indexing, and analytics.