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PromptBranch

Local-first MCP server for versioning, searching, evaluating, and improving AI prompts.

Connector by PromptBranch · GitHub account verified by the MCP Registry

IndexedMITLocal (stdio)★ 9
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Install

Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/promptbranch-promptbranch

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Local-first MCP server for versioning, searching, evaluating, and improving AI prompts.

Use cases: prompt-engineering, llm-evaluation

Reviews

Write a review

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this server can do and what it asks for, from its tool list, install config and code. Checked Oct 25, 2026.

Runs code on install

Its package runs an install script (such as npm postinstall or setup.py code) as soon as you install it, before any tool is called. Read the script first.

Tools
4 read · 2 write · 0 delete
Secrets
None asked for
Install scripts
Runs code on install
Runs as
Node.js package

Tools by what they do 6

Read from the source code; the running server may list different tools.

Read 4 · Look things up without changing anything.

  • get_prompt
  • list_prompts
  • search_prompts
  • suggest_variation

Write 2 · Create, change, send or run things.

  • add_note
  • report_run

Network hosts it talks to 15

  • ai-sdk.dev · found in code
  • ai.google.dev · found in code
  • api.cerebras.ai · found in code
  • api.deepinfra.com · found in code
  • api.github.com · found in code
  • api.groq.com · found in code
  • api.mistral.ai · found in code
  • api.perplexity.ai · found in code
  • api.together.xyz · found in code
  • api.x.ai · found in code
  • docs.anthropic.com · found in code
  • github.com · found in code
  • models.dev · found in code
  • platform.openai.com · found in code
  • promptbranch.app · found in code

Files it touches

  • Your home directory (~)

Tools (6)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • add_note

    Attach a freeform note to a prompt (or a specific version of it).

  • get_prompt

    Fetch and render a prompt. If status is needs_input, do not execute content: ask the user for every missingVariables value, then call get_prompt again with variables. Execute content only when status is ready. Defaults to the current (preferred) version; pin automation with versionId, or browse by version and/or branch.

  • list_prompts

    List prompts in the library, optionally filtered by collection or tag.

  • report_run

    Report that a prompt version was used: which tool/model ran it, the outcome rating (1–5) and a short result summary.

  • search_prompts

    Full-text search over prompt titles, descriptions, tags, notes and version content.

  • suggest_variation

    Propose a rewritten version of a prompt. Creates a PENDING suggestion that a human must approve in the PromptBranch app before it becomes usable — agents propose, humans approve.

Signals

Stars
9
Forks
2
Open issues
0
Last commit
Oct 16, 2026 (14 days ago)
Last release
Sep 28, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name
io.github.PromptBranch/promptbranch
Version
0.2.6
Auth
No auth
Packages
npm @promptbranch/mcp
License
MIT
Repository
github.com/PromptBranch/promptbranch
Website
promptbranch.app
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
Official MCP Registrygithub-graphql

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Cite this page

PromptBranch MCP server. Agent Mart. https://agentmart.dev/connectors/promptbranch-promptbranch (last updated 2026-10-24)