Sixtyfour

Sixtyfour Skills

Agent Skills that teach AI coding assistants (Claude Code, Cursor, etc.) how to use Sixtyfour — people and company intelligence at scale.

Skills

Skill	Description
sixtyfour	People and company intelligence — investigate any person or company, resolve identities, map relationships, and surface signals via the Sixtyfour API.

Installation

Claude Code

Add the skill to your project:

npx skills add sixtyfour-ai/skills --skill "sixtyfour"

Or link it directly:

# Clone this repo
git clone https://github.com/sixtyfour-ai/skills.git /path/to/sixtyfour-skills

# Symlink into your project
ln -s /path/to/sixtyfour-skills/skills/sixtyfour .claude/skills/sixtyfour

Manual

Copy the skills/sixtyfour directory into your agent's skills directory.

Prerequisites

1. Sign up at app.sixtyfour.ai
2. Generate an API key at app.sixtyfour.ai/keys
3. Set the environment variable:

export SIXTYFOUR_API_KEY=your_key_here

Usage

Once installed, your agent can:

• Investigate people — "Tell me everything about Jane Doe at Acme Corp — title, background, LinkedIn, career trajectory"
• Research companies — "Research Ramp — revenue, headcount, funding, engineering leadership"
• Search at scale — "Find 500 VPs of Sales at Series B SaaS startups in NYC"
• Build pipelines — "Search for AI startups, find their CTOs, get contact info, and export to CSV"
• Due diligence — "Deep investigation on this person for compliance review" (medium/high tier)

Documentation

• Sixtyfour Docs
• API Quick Start
• Skills Guide

Development

Versioning

Both Claude Code and Cursor use semantic versioning in the manifest files — not git tags. Bump the version in all three manifest files before pushing:

• .claude-plugin/plugin.json
• .claude-plugin/marketplace.json
• .cursor-plugin/plugin.json

Git tags are optional — useful for tracking releases on GitHub but not required by either platform.

Updating

Claude Code — version-based, no manual review. Push to main and users run:

claude plugin update sixtyfour@sixtyfour-skills

A restart is required to apply the update.

Cursor — updates go through manual marketplace review before publishing. Cursor caches installed versions locally, so users generally need to uninstall and reinstall the plugin via the in-app marketplace to get the latest version.

Feedback

Something not working? Open an issue.