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hermes-agent/optional-mcps/n8n/manifest.yaml
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2026-06-14 14:30:48 -04:00

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YAML

# Nous-approved MCP catalog entry.
# Presence in this directory = approval. Merged via PR review.
#
# Schema version 1.
manifest_version: 1
name: n8n
description: Manage and inspect n8n workflows from Hermes (stdio bridge, no public port).
source: https://github.com/CyberSamuraiX/hermes-n8n-mcp
# How to launch the server once installed. The keys here map 1:1 to the
# `mcp_servers.<name>` block written into ~/.hermes/config.yaml by the
# existing `_save_mcp_server()` helper in hermes_cli/mcp_config.py.
transport:
type: stdio
# For git-installed servers, ${INSTALL_DIR} is substituted at install time
# with the path the catalog cloned the repo into. The catalog never
# auto-updates: the user re-runs `hermes mcp install official/n8n` to
# refresh.
command: "${INSTALL_DIR}/.venv/bin/python"
args:
- "${INSTALL_DIR}/server.py"
# Optional install step. Omit for npm/uvx servers where transport.command
# is the install (`npx -y package`). Use for repos that need a local clone
# + dependency install.
install:
type: git
url: https://github.com/CyberSamuraiX/hermes-n8n-mcp.git
# Pin to a commit/tag. Required — manifests do not float HEAD.
ref: main
# Bootstrap commands run inside the cloned directory after clone.
bootstrap:
- "python3 -m venv .venv"
- ".venv/bin/pip install -r requirements.txt"
# Authentication. Three shapes:
# type: api_key — prompt for env vars, write to ~/.hermes/.env
# type: oauth — provider-mediated or remote MCP native OAuth (case 1/2)
# type: none — no credentials needed
auth:
type: api_key
env:
- name: N8N_BASE_URL
prompt: "n8n instance URL"
default: "http://127.0.0.1:5678"
required: true
secret: false
- name: N8N_API_KEY
prompt: "n8n API key (generate under Settings → API)"
required: true
secret: true
# Tool selection at install time:
# n8n's bridge exposes 11 tools. Mutating ones (activate/deactivate, docker
# container_logs) are pruned from the default so a user who installs casually
# gets a read-mostly safe surface. Users see the full list in the install-time
# checklist and can opt into the mutating tools per their threat model.
tools:
default_enabled:
- health
- list_workflows
- get_workflow
- find_workflows
- list_executions
- get_execution
- recent_failures
- export_workflow
post_install: |
The n8n bridge expects to talk to a running n8n instance over the URL you
provided. Generate an API key in n8n under Settings → API.
Workflow activate/deactivate calls are real mutations against your live n8n.
Treat them carefully.
Start a new Hermes session to load the n8n tools.