N8n MCP

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npx agentmarket install connector/ratamaha-git-n8n-mcp

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

Tools

10 read · 2 write · 0 delete · 4 not yet classified

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Node.js package

Tools (16)

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

• Discord
• execution_explainExplain a failed n8n executionread-only

  Diagnose a failed or surprising n8n execution. Paste the execution JSON (from the n8n UI 'Show details' or `GET /executions/:id?includeData=true`); returns a per-node summary highlighting nodes that returned 0 items, unresolved `={{ ... }}` expressions, errors with hints, and LLM token usage. Hits the most common debugging pain point: items 'silently disappearing' between nodes. Deterministic, rule-based.

• execution_listList recent n8n executionsread-only

  List recent executions from a live n8n instance (requires N8N_API_URL + N8N_API_KEY). Filter by workflowId, status (success|error|waiting), limit. Pass `includeData: true` to get the full execution body (large) — pair with execution_explain to diagnose a specific failure.

• execution_replayBuild a replay workflow for one noderead-only

  Build a self-contained replay workflow that exercises a single node from a larger workflow. The replay workflow is Manual Trigger -> Replay Seed (Code node with pinned items) -> target node. Optional `inputItems` or an `execution` payload pins what the target sees. Useful for iterating on one stubborn node without re-running the whole pipeline. Returns workflow JSON ready to import or push via workflow_create.

• execution_timelineRender an execution as a per-node timelineread-only

  Render an n8n execution as a per-node timeline: start offset, duration, items in/out, error flag. Complements execution_explain — that one surfaces *why*, this surfaces *when*. Output is a markdown table sorted by start time. Deterministic.

• node_scaffoldScaffold an n8n custom noderead-only

  Scaffold a TypeScript skeleton for an n8n custom node from a plain-English description. Returns a single TypeScript file implementing INodeType with description, credentials reference, and an execute method stub. Pure code generation — no network, no filesystem writes.

• Notion
• Slack
• Webhook
• workflow_activateActivate or deactivate a workflow

  Activate or deactivate a workflow on a live n8n instance (requires N8N_API_URL + N8N_API_KEY). Pass `active: false` to deactivate. Idempotent — re-activating an already-active workflow is a no-op on n8n's side.

• workflow_createCreate a workflow on a live n8n instance

  Create a workflow on a live n8n instance (requires N8N_API_URL + N8N_API_KEY). Strips read-only fields (id, active, createdAt, ...) before posting. Workflows are created inactive — call workflow_activate afterward. Pairs with workflow_generate for end-to-end 'describe -> deploy'.

• workflow_diffSemantic diff between two n8n workflowsread-only

  Semantic diff between two workflows. Reports nodes added / removed / modified (with field-level deltas: type, typeVersion, parameters, credentials, disabled, position), connection topology changes, and settings drift. Ignores noise (small position deltas, createdAt/updatedAt). Pair with workflow_get to compare deployed vs local. Deterministic.

• workflow_generateGenerate an n8n workflow from a descriptionread-only

  Generate a valid n8n workflow JSON from a plain-English description. Handles webhook/schedule/RSS triggers, common action nodes (Slack, Google Sheets, Discord, Gmail, Notion, HTTP), and AI Agent setups (LangChain root agent + chat model + memory + optional HTTP tool, wired with ai_languageModel / ai_memory / ai_tool connections). Returns workflow JSON with unique node IDs, connections, positions, and typeVersion on every node. Output is non-deterministic (random node IDs and webhook paths).

• workflow_getFetch a single workflow by IDread-only

  Fetch a single workflow JSON by id from a live n8n instance (requires N8N_API_URL + N8N_API_KEY). Returns the full nodes/connections payload — pair with workflow_lint to audit a deployed workflow.

• workflow_lintLint an n8n workflow JSONread-only

  Lint an n8n workflow JSON. Returns concrete errors and warnings: missing credentials, deprecated node types (Function -> Code, spreadsheetFile -> convertToFile/extractFromFile), broken connections, missing or non-numeric typeVersion, duplicate node names or IDs, AI Agent missing ai_languageModel sub-node, Webhook missing webhookId, IF node still on v1 condition schema, rate-sensitive nodes without retries, Code-node sandbox violations, expression staleness (`$('NodeName')` referencing missing nodes), manualTrigger in active workflows, disabled-but-wired nodes, empty Set nodes, HTTP method/body…

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Forks

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1

Weekly downloads

65

Last commit

Oct 22, 2026 (6 days ago)

Last release

Oct 20, 2026 (8 days ago)

Last package publish

Oct 19, 2026 (9 days ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Registry name

io.github.ratamaha-git/n8n-mcp

Version

0.3.0

Auth

No auth

Packages

npm @automatelab/n8n-mcp

License

MIT

Repository

github.com/ratamaha-git/n8n-mcp

First seen

Oct 24, 2026

Last checked

Oct 24, 2026

Source

Official MCP Registrygithub-graphql