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Claude Code Marketplaces

Discover Claude Code plugins, extensions, and tools. Automatically updated directory of Anthropic Claude AI marketplaces with development tools, productivity plugins, and integrations.

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Built for the Claude Code community with Claude Code by mertbuilds.com

Independent project, not affiliated with Anthropic
customerio avatar

Cio

customerio/cli
303 installs3 stars
Summary

This wraps the Customer.io CLI for managing campaigns, broadcasts, segments, and CDP pipelines right from Claude. The standout move is `cio prime`, which dumps the entire API reference into context so you're not fumbling through help text. It handles three main flows: onboarding new users through account setup and first email send, integrating the SDK into an existing codebase with track and identify calls, and billing questions about plans and going live. If you're building on Customer.io or debugging `fly.customer.io` errors, this keeps you in the terminal instead of context switching to docs.

Install to Claude Code

npx -y skills add customerio/cli --skill cio --agent claude-code

Installs into .claude/skills of the current project.

CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Lid closed, agents working
Lid closed, agents working
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Block distraction from your iPhone for freeBlock distraction from your iPhone for free
Block distraction from your iPhone for free
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
Granola, the best AI meeting recorder
Granola, the best AI meeting recorder
Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Open Steps
Open Steps
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Agent, connect blockchain
Agent, connect blockchain
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Lid closed, agents working
Lid closed, agents working
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Block distraction from your iPhone for freeBlock distraction from your iPhone for free
Block distraction from your iPhone for free
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
Granola, the best AI meeting recorder
Granola, the best AI meeting recorder
Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Open Steps
Open Steps
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Agent, connect blockchain
Agent, connect blockchain
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
Files
SKILL.md

Select a file.

Featured
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Lid closed, agents working
Lid closed, agents working
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →
Block distraction from your iPhone for freeBlock distraction from your iPhone for free
Block distraction from your iPhone for free
Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →
Granola, the best AI meeting recorder
Granola, the best AI meeting recorder
Notes, actions and memory. Without a meeting bot. First month 100% off.
Download for free →
belt - the only tool your agent needs
belt - the only tool your agent needs
belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →
Open Steps
Open Steps
Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Agent, connect blockchain
Agent, connect blockchain
Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →
Categories
Testing & QADevOps & CI/CDCLI & Terminal
First SeenJun 3, 2026
View on GitHub

Recommended

More Testing & QA →
galaxy-dawn avatar
doc-coauthoring

galaxy-dawn/claude-scholar

This skill should be used when the user asks to co-author documentation, draft a proposal, write a technical spec, create a decision doc or RFC, or structure a substantial document through iterative collaboration and reader testing.
301
5k
maxazure avatar
video-editing

maxazure/video-editing-skill

Xiaohongshu/RED-tuned short-form video workflow for raw voice-over, talking-head, tutorials, interviews, podcasts, long videos, screen recordings, B-roll, captions, and generated assets. Covers edit routing, project bootstrap, transcription, semantic transcript review, multi-take packs, audio sync, source-bound video stabilization, cleanup, highlights/shorts, hook/story rewrite, content/source gates, B-roll/enrich/gpt-image-2/video-generation planning, reference-frame/style-lock preflight, screen focus, PIP, color grade, local speed ramps, explicit J-cut/L-cut audio transitions, reversible edit revisions, portable edit-recipe export/replay, preflight/render/QA/audio master, source-time edit comparison, retention-rhythm, subtitle-readability, platform-safe-area and rendered-speech continuity QA, review proxies, subtitles, CapCut import, multi-platform and target-size delivery exports, cover A/B variants, captions, publish packages, dashboards, resume packets, EDL/FCPXML/OTIO, and Remoti
301
165
postplusai avatar
edit-enhancement-packager

postplusai/postplus-skills

Package beat-level edit enhancement instructions from a B-roll plan, subtitle chunks, and optional style context. Use this when the goal is to turn B-roll matching into editor-ready guidance for keyword emphasis, micro-animation hints, A-roll stay-on-face logic, B-roll coverage style, and subtitle interaction.
301
19
openfga avatar
openfga

openfga/agent-skills

OpenFGA authorization modeling best practices for defining types and relations, writing relationship tuples, deriving can_* permissions, applying type restrictions and usersets, and authoring .fga.yaml check/list_objects/list_users tests. Use when authoring, reviewing, or refactoring OpenFGA models, tuples, permissions, .fga files, .fga.yaml test files, or OpenFGA SDK integrations in JavaScript, TypeScript, Go, Python, Java, or .NET.
299
4
umbraco avatar
umbraco-validation-checks

umbraco/umbraco-cms-backoffice-skills

Browser validation checks for testing Umbraco backoffice extensions manually
297
26
duck4nh avatar
pentest-expert

duck4nh/antigravity-kit

Penetration testing methodology expert. OWASP, PTES, reconnaissance, scanning, exploitation, reporting. Use for security assessments.
295
15