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5 Best Anthropic Agent Skills Alternatives in 2026 (Free & Paid)

Anthropic Agent Skills is anthropic's official skills: Word, PowerPoint, PDF, Excel, brand and design skills, priced at open source. If it is too expensive, missing a feature or simply not for you, these are the strongest alternatives we have reviewed.

Why look for a Anthropic Agent Skills alternative?

  • Document skills are source-available, not open source
  • Marked as demonstration material
  • Few skills aimed squarely at marketing copy or video

Each option below covers the same job from a different angle.

1

Marketing Skills (Corey Haines) Open source

Agent Skills pack for copywriting, SEO, CRO, email, ads and launch work

★ 51k · MIT · updated 2026-09-05

8.4/10

What it is Marketing Skills is an MIT-licensed collection of Agent Skills by Corey Haines aimed at technical marketers and founders who work inside coding agents. A shared product-marketing skill captures your positioning once, and every other skill reads it first, so copy, emails and ads stay consistent. Skills cover SEO and content, conversion optimisation, copywriting and copy editing, cold… Read more →

Pros

  • Broad coverage of marketing tasks
  • Shared positioning context keeps outputs consistent
  • MIT licence and several install paths
  • Actively maintained

Cons

  • Aimed at SaaS/startup marketing more than editorial content
  • Sponsored partner integrations inside the README
  • Loading many skills adds context overhead

Pricing: Open source  ·  agent-skills marketing copywriting seo email

2

Remotion Agent Skills Open source

Official Agent Skills for making videos in code with Remotion

★ 4.7k · updated 2026-09-24

8.1/10

What it is Remotion is a framework for making videos with React code, rendered to MP4 locally or on AWS Lambda. The Remotion team maintains this set of Agent Skills so coding agents can create Remotion projects, write animation markup, add captions, build map animations, open the Studio preview and trigger renders. It turns Claude Code, Codex or Cursor into… Read more →

Pros

  • Official and kept in sync with Remotion releases
  • Covers create, captions, maps and render
  • Output is editable code, not a flat file
  • Works with any skills-capable agent

Cons

  • Requires a Node/React toolchain
  • Company licence needed above three people
  • Motion design still needs human taste and iteration

Pricing: Open source  ·  agent-skills remotion video motion-graphics react

3

Frontend Slides Open source

Coding-agent skill that builds animated HTML slide decks or converts PowerPoint

★ 30k · MIT · updated 2026-06-23

7.8/10

What it is Frontend Slides is an MIT-licensed skill by Zara Zhang that turns a coding agent into a presentation designer. Instead of asking you to describe a style, it generates visual previews to choose from, then writes a single self-contained HTML deck with inline CSS and JavaScript. It can also convert existing PowerPoint files to web slides while keeping… Read more →

Pros

  • Distinctive designs via visual previews
  • Zero-dependency HTML output
  • Converts existing .pptx files
  • MIT licence

Cons

  • Output is HTML, not editable .pptx
  • Only one format covered
  • Last push June 2026, slower cadence than some skills

Pricing: Open source  ·  agent-skills presentations html slides design

4

ElevenLabs Skills Open source

Official skills for text-to-speech, dubbing, music and sound effects via ElevenLabs

★ 460 · MIT · updated 2026-09-24

7.6/10

What it is ElevenLabs publishes this MIT-licensed set of Agent Skills so coding agents can use its audio APIs correctly. Skills cover text-to-speech, speech-to-text with timestamps, sound effects, music generation, voice changing, voice isolation, dubbing into other languages while keeping the speaker's voice, and conversational voice agents. Each skill includes SDK examples for Python, JavaScript and the ElevenLabs CLI, and… Read more →

Pros

  • Official vendor skills with evals
  • Covers voice, dubbing, music and SFX
  • Uses current SDK packages
  • MIT licence

Cons

  • ElevenLabs-only
  • Needs a paid plan for commercial audio
  • Fewer stars and community examples than larger packs

Pricing: Open source  ·  agent-skills elevenlabs text-to-speech dubbing audio

5

HeyGen Skills Open source

Official skills for creating avatars, avatar videos and video translation with HeyGen

★ 452 · MIT · updated 2026-07-14

7.3/10

What it is HeyGen's official, MIT-licensed skills give a coding agent the ability to create a HeyGen avatar, produce avatar videos through HeyGen's v3 Video Agent pipeline and translate videos. The repo ships three skills: heygen-avatar, heygen-video and heygen-translate. The agent asks for what it is missing (script, look, voice), picks a style, generates the video and returns a share… Read more →

Pros

  • Official vendor skills
  • Covers avatar creation, video and translation
  • Choice of API key or OAuth MCP
  • MIT licence

Cons

  • Requires HeyGen credits
  • Only three skills
  • Avatar videos need consent and disclosure

Pricing: Open source  ·  agent-skills heygen avatar-video video-translation

Free and open-source Anthropic Agent Skills alternatives

Frontend Slides 🧩 WorkflowOpen source

Coding-agent skill that builds animated HTML slide decks or converts PowerPoint

★ 30k

ElevenLabs Skills 🧩 WorkflowOpen source

Official skills for text-to-speech, dubbing, music and sound effects via ElevenLabs

★ 460

HeyGen Skills 🧩 WorkflowOpen source

Official skills for creating avatars, avatar videos and video translation with HeyGen

★ 452

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