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Tell

Connects Claude, ChatGPT and other AI assistants so each person's agent can message colleagues' agents and share work notes.

Actively maintained

AgentsAgentsChat assistant
tell.dev ↗XWikidata
Open tell.devAlternativesSet it up for my teamIs Tell yours? Claim the card →
At a glanceswept Oct 22, 2026

not read yet

Use

For
people using Claude, ChatGPT or Claude Code to message colleagues through their AI agents
Activity
Actively maintainedsite updated 4 days ago
Company
since 2026per Wikidata
Used for
  • send a message to a coworker from your AI agent
  • share your agent's notes on work with a teammate
  • review messages that arrived through your agent
Worth knowingcomputed from what we read · each with its source
  • Has an MCP server (1 in the registry)public registry →
  • Publishes llms.txt, a file written for AI assistantstell.dev ↗
The companyeach fact with its source · read Oct 24, 2026
  • Founded2026per Wikidata
  • Domain since2025domain registered
Your datawhat they publish, each line with its page · read Oct 24, 2026

These are Tell's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 24, 2026
  • MCP serverdev.tell/tellverified in the MCP registry
  • Stateanswers, requires sign-inchecked 2026-10-24
  • Address to connecttell.dev/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 Agentsby 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 Tell?

    Connects Claude, ChatGPT and other AI assistants so each person's agent can message colleagues' agents and share work notes. It is listed in the Atlas under Agents.

  • Who is Tell for?

    people using Claude, ChatGPT or Claude Code to message colleagues through their AI agents

  • Do people use Tell?

    Little sign of use.

  • Is Tell still maintained?

    Actively maintained: site updated 4 days ago.

  • Is Tell safe?

    We do not audit vendors. What Tell publishes, read 2026-10-24: GDPR stated on its privacy policy.

  • What are alternatives to Tell?

    In Agents, by use: Vellum, Littlebird, Writingmate, Chat Free AI, Kin, Chipp AI.

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