VectorStep Service MCP

An MCP server that exposes VectorStep — pipeline authoring, run inspection, and analytics — to MCP clients such as Claude Code and Claude Desktop.

What it is

A separate, standalone repository and process with no import-level dependency on VectorStep — the two are coupled only over HTTP, so each can be developed, versioned, and deployed independently.

It lets an MCP client create and edit pipelines and step-library definitions (with the same validation VectorStep itself uses), inspect runs and steps, answer operational and quality questions, and trigger runs or submit human feedback. Agents are not authored here — that's the job of the companion VectorStep-Gateway-MCP; this server may only read agents, to help author pipelines that reference them.

Quick start

python3 -m venv .venv
.venv/bin/pip install -e .

CI runs this repo's test suite on every push and pull request (.github/workflows/tests.yml).

Then register it with your MCP client, pointing at a running VectorStep instance:

claude mcp add vectorstep-service \
  --env VECTORSTEP_BASE_URL=http://127.0.0.1:8000 \
  -- /absolute/path/to/VectorStep-Service-MCP/.venv/bin/python -m vectorstep_service_mcp

Full install, client config (Claude Code, Claude Desktop, MCP Inspector), and tool inventory: MCP servers.

Documentation

Full docs at vectorstep.io:

Section Covers
MCP servers Install, client config, tool inventory, explain tool, write-path design notes for both MCP servers
Pipelines The pipeline/step schema this server authors against

The ecosystem

Repo Role
VectorStep The orchestration service: webhook intake, pipeline runner, trust gating, UI, analytics
VectorStep-Gateway WebSocket gateway that runs agents: LLM providers, MCP tools, the full agentic loop
VectorStep-Service-MCP MCP server exposing pipeline authoring, run inspection and analytics to Claude Code/Desktop
VectorStep-Gateway-MCP MCP server for authoring and inspecting Gateway agents

Licence

VectorStep Service MCP is proprietary software, free to download and use under the terms in LICENSE. The source is not publicly distributed and this repository is private.

Bug reports, questions, and feature requests are welcome at alex@vectorstep.io. Code contributions are not accepted — see clause 6 of the licence. For a suspected vulnerability, follow SECURITY.md rather than emailing the address above.

Project links

Key dates

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1 maintainer

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Credits

Author: Alex Dalton

License expression

MIT
View SPDX License List

Requires

Python >=3.11

Provides Extra

dev

Tags

mcp vectorstep ai agents orchestration pipelines

Classifiers

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