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Counterparts

Gives Claude a persistent memory of your work together, storing, fading and recalling notes it writes itself on your machine.

Actively maintained

ProductivityOpen source
counterparts.ai ↗
Open counterparts.aiAlternativesSet it up for my team
Counterparts: data, price, alternatives
At a glancechecked Nov 2, 2026

4.3k installs/mo

Widely used

For
People working with Claude who want it to recall their working preferences, past decisions, and where they left off.
Activity
Actively maintainedrelease 2 days ago · site updated 2 days ago
How it runs
Self-hostedCLI
Used for
  • Carry working preferences into each new Claude session
  • Resume a project where the previous session stopped
  • Review and export what the assistant has learned about you
Worth knowingcomputed from what we read · each with its source
  • On the web since 2023, older than 83% of its shelfINITE Atlas
  • Has an MCP server (1 in the registry)public registry →
  • Publishes llms.txt, a file written for AI assistantscounterparts.ai ↗
How a program reaches itfound, not claimed · read Nov 2, 2026
  • MCP serverai.counterparts/phoneverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-11-02
  • Address to connectcounterparts.ai/phone/mcp

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Alternatives in Productivityby use, among tools still maintained

Figure and bar: visits/mo, estimate · year: online since

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beta

Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

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Questions this page answers
  • What is Counterparts?

    Gives Claude a persistent memory of your work together, storing, fading and recalling notes it writes itself on your machine. It is listed in the Atlas under Productivity.

  • Who is Counterparts for?

    People working with Claude who want it to recall their working preferences, past decisions, and where they left off.

  • Do people use Counterparts?

    Widely used: 4.3k installs/mo (npm).

  • Is Counterparts still maintained?

    Actively maintained: release 2 days ago · site updated 2 days ago.

  • What are alternatives to Counterparts?

    In Productivity, by use: Rowboat, GBrain, MemoryRouter, Taskaid, innernet.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk