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happenstance Codex Plugin

Author
Happenstance, Inc.
Category
Productivity
Topics
Sales, Marketing & Business Ops · Web Search, Research & Learning
Version
1.0.3
First seen
2026-07-12
Last confirmed
2026-07-13
Explanation last updated
2026-07-12

The explanation below is AI-generated. Please verify it against the sources.

Happenstance is a plugin/tool that searches a user's professional network using natural language to find relevant people. Per its plugin manifest, it surfaces mutual connections and ranks results by relationship strength to help identify the warmest introduction path, and it can perform 'deep research' on a person to compile a comprehensive profile including career history and expertise. The developer describes it as aimed at sales, recruiting, venture capital, and business development use cases. The homepage additionally describes connecting accounts such as Gmail, Calendar, LinkedIn, Instagram, and Twitter, creating team/group networks, and accessing the service via an API, MCP, or CLI, as well as integration with ChatGPT, Claude, Claude Code, and OpenClaw. The third source (README) is a general description of the openai/plugins repository structure and does not contain Happenstance-specific details.

Overview

Happenstance, Inc. offers Happenstance, a SaaS product/API that lets users search across their own and their team's professional networks (e.g., email, calendar, and social contacts) using natural language, and generates detailed research profiles on individuals, according to its plugin manifest and homepage.

What you can do with happenstance

  • Search your professional network using natural language queries
  • View mutual connections and results ranked by relationship strength to find warm introduction paths
  • Run 'deep research' on a person to get a profile with career history and expertise
  • Use the tool for sales, recruiting, venture capital, or business development scenarios (per the plugin manifest)
  • Connect accounts such as Gmail, Calendar, LinkedIn, Instagram, Twitter, and Outlook (per the homepage)
  • Create a group to pool a team's or community's connections into one searchable network (per the homepage)
  • Access search and research programmatically via API, MCP, or CLI, and integrate with ChatGPT, Claude, Claude Code, or OpenClaw (per the homepage)

Sources

Original description (English)

Happenstance searches your professional network using natural language to find the right people.

History of happenstance

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