Chain Weaver MCP Server

Observe the tool paths your agent repeats. Compile them into typed, deterministic flows. Replace the LLM-in-the-loop with governed, auditable execution. It runs locally over stdio via the published package.

People connecting automation tools to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-08-22 · ★ 6 · #90 OF 194 MAINTAINED AUTOMATION · VERIFIED 2026-08-25

Apache-2.0 · Python servers · how we verify → /methodology

01 · Install Chain Weaver

Claude Code

claude mcp add dgenio-chainweaver -- uvx chainweaver

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "dgenio-chainweaver": {
      "command": "uvx",
      "args": [
        "chainweaver"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license Apache-2.0 - declared in the repository

pypi package chainweaver - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.dgenio is GitHub-verified and matches the repo owner

03 · What Chain Weaver can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.14.1 · 2026-07-24

validate fallback inputs against fallback schema · FlowStep output_mapping, JSON-pointer input_mapping, dynamic params · Reconcile v1 release criteria with shipped capabilities · add doctor vscode/claude/opencode…

v0.13.0 · 2026-06-15

Add governed macro-flow safety and MCP exposure · Automate release and distribution workflows · update streamlit requirement from >=1.40 to >=1.58.0 · coding-agent macro-flow compilation pipeline (#253 cluster)…

v0.12.1 · 2026-06-08

[codex] Fix MCP registry publication prerequisites

04 · Who maintains Chain Weaver

ChainWeaver is maintained by dgenio. We track 2 MCP servers from dgenio - 2 actively maintained, 15 combined GitHub stars, oldest repo from Feb 2026. Full record: all servers from dgenio.

contextweaver MCP gateway: bounded tool shortlists + artifact-backed result firewall. Deterministic, no model. ★ 9

05 · Facts

repository: github.com/dgenio/chainweaver
category: automation - ranked #90 of 194 actively-maintained automation servers as of 2026-08-25.
release cadence: 7 releases in the last 90 days (latest 2026-07-24)
registry: io.github.dgenio/chainweaver (active, first published 2026-06-08)
packages: pypi:chainweaver

06 · Chain Weaver FAQ

What is Chain Weaver?

Is Chain Weaver still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-22 and it shipped 7 releases in the last 90 days. We re-verify nightly.

How do I install Chain Weaver?

Run `uvx chainweaver`. You can also paste the ready-made client config above.

Does Chain Weaver run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Chain Weaver

Alternatives to Chain Weaver

Maintained automation servers if Chain Weaver isn't the fit.

More automation MCP servers · Hotelbooking AI · Labby · Apprise RMCP · UniFi RMCP (dinglebear-ai) · Yarr MCP (dinglebear-ai)

More Python MCP servers · Contextweaver · Edgar Tools · Tripitaka MCP · Forensic Deepdive · A Mem MCP · see all