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kelunik/acme
============

ACME library written in PHP.

v2.0.0(9mo ago)121603.9k↓17.7%18[6 issues](https://github.com/kelunik/acme/issues)3MITPHPPHP >=8.1CI passing

Since Nov 14Pushed 9mo ago8 watchersCompare

[ Source](https://github.com/kelunik/acme)[ Packagist](https://packagist.org/packages/kelunik/acme)[ RSS](/packages/kelunik-acme/feed)WikiDiscussions 2.x Synced 1mo ago

READMEChangelog (10)Dependencies (16)Versions (25)Used By (3)

acme [![License](https://camo.githubusercontent.com/942e017bf0672002dd32a857c95d66f28c5900ab541838c6c664442516309c8a/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f6c6963656e73652d4d49542d626c75652e7376673f7374796c653d666c61742d737175617265)](https://camo.githubusercontent.com/942e017bf0672002dd32a857c95d66f28c5900ab541838c6c664442516309c8a/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f6c6963656e73652d4d49542d626c75652e7376673f7374796c653d666c61742d737175617265)
=========================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================

[](#acme-)

`kelunik/acme` is a non-blocking implementation of the ACME protocol ([RFC 8555](https://www.rfc-editor.org/rfc/rfc8555)). Non-blocking I/O is scheduled under the hood by [Revolt](https://revolt.run/).

Tip

If you're looking for a PHP client, have a look at [`kelunik/acme-client`](https://github.com/kelunik/acme-client)which is based on this library.

Installation
------------

[](#installation)

```
composer require kelunik/acme
```

This package follows semantic versioning. It requires PHP 8.1 or later.

###  Health Score

58

—

FairBetter than 98% of packages

Maintenance56

Moderate activity, may be stable

Popularity51

Moderate usage in the ecosystem

Community28

Small or concentrated contributor base

Maturity82

Battle-tested with a long release history

 Bus Factor1

Top contributor holds 94.8% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~148 days

Recently: every ~273 days

Total

25

Last Release

282d ago

Major Versions

v0.5.3 → v1.0.02021-10-25

v1.0.0 → v2.0.0-beta.12022-08-15

v1.0.1 → v2.0.02025-08-09

PHP version history (2 changes)v1.0.0PHP >=7.4

v2.0.0-beta.1PHP >=8.1

### Community

Maintainers

![](https://www.gravatar.com/avatar/12852217f3369e8144bc9ce6ac2a2341c28c5512c5b3df5749bfbbd45b6877ff?d=identicon)[kelunik](/maintainers/kelunik)

---

Top Contributors

[![kelunik](https://avatars.githubusercontent.com/u/2743004?v=4)](https://github.com/kelunik "kelunik (200 commits)")[![DSpeichert](https://avatars.githubusercontent.com/u/1254971?v=4)](https://github.com/DSpeichert "DSpeichert (2 commits)")[![kfeutz](https://avatars.githubusercontent.com/u/6474958?v=4)](https://github.com/kfeutz "kfeutz (2 commits)")[![kevindierkx](https://avatars.githubusercontent.com/u/2406615?v=4)](https://github.com/kevindierkx "kevindierkx (1 commits)")[![msaladna](https://avatars.githubusercontent.com/u/253702?v=4)](https://github.com/msaladna "msaladna (1 commits)")[![ramonschriks](https://avatars.githubusercontent.com/u/12080580?v=4)](https://github.com/ramonschriks "ramonschriks (1 commits)")[![agustin-tiendanube](https://avatars.githubusercontent.com/u/17569838?v=4)](https://github.com/agustin-tiendanube "agustin-tiendanube (1 commits)")[![vanoostrum](https://avatars.githubusercontent.com/u/3648455?v=4)](https://github.com/vanoostrum "vanoostrum (1 commits)")[![barryvdh](https://avatars.githubusercontent.com/u/973269?v=4)](https://github.com/barryvdh "barryvdh (1 commits)")[![iggyvolz](https://avatars.githubusercontent.com/u/2197376?v=4)](https://github.com/iggyvolz "iggyvolz (1 commits)")

---

Tags

acmeacme-protocolamphpasyncletsencryptphphttpsencryptioncertificatetlssslletsencryptACME

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/kelunik-acme/health.svg)

```
[![Health](https://phpackages.com/badges/kelunik-acme/health.svg)](https://phpackages.com/packages/kelunik-acme)
```

###  Alternatives

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