# curl/everything-curl

The book documenting the curl project, the curl tool, libcurl and more. Simply put: everything curl.

Repository: https://github.com/curl/everything-curl
Canonical: https://ross.abutalabs.com/products/everything-curl
Homepage: https://everything.curl.dev/
Language: Perl
License: CC-BY-4.0
License Family: other
Topics: curl, libcurl, book, documentation, libcurl-multi
Last push: 2026-08-14T07:10:09+00:00

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 35, longevity 100
- inputs: {"age_days": 3996, "days_push": 19, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2262, forks 338 (observed 2026-08-28T04:06:31.940145+00:00)

## What it is
An open-source book by Daniel Stenberg documenting the curl project, the curl command-line tool, and the libcurl library. It is freely available online, as PDF, and as ePUB, and is continuously updated by the community.

## Use cases
- learn how to use the curl command-line tool
- understand how to use libcurl in my programs
- learn about HTTP transfers and protocols with curl
- find out how to contribute to the curl project
- reference for libcurl multi interface usage
- understand the history and development of curl

## When to choose
- you want a comprehensive, authoritative guide to curl and libcurl written by the project founder
- you need free, regularly updated documentation in web, PDF, or ePUB formats
- you are learning HTTP/protocol transfers via curl at any skill level

## When to avoid
- you need API reference documentation for a specific libcurl binding in another language
- you want a quick cheat-sheet rather than an in-depth book
- you need documentation for tools other than curl

## Facets
- artifact type: learning-resource
- maturity: active
- function: documentation
- domain: developer-tools, documentation, networking
- platform: cross-platform
- tags: book, curl, libcurl, http, mdbook, open-source-documentation, command-line, web-server

## Member repositories
- curl/everything-curl (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:31.940145+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:42:31.408657+00:00, confidence not recorded.
  - readme: https://github.com/curl/everything-curl (fetched 2026-08-28T04:06:31.940145+00:00, sha e0c5f1b5255d)
  - homepage: https://everything.curl.dev/ (fetched 2026-08-29T10:23:04.454187+00:00, sha c940bd879045)
- Data as of 2026-08-30T08:39:29.467469+00:00.