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@intrvls/n8n-nodes-google-gemini

v1.3.2

Published

n8n community node for the Google Gemini Chat Model, built on @intrvls/langchain-google-genai (the @google/genai-based port of @langchain/google-genai)

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Links

Git

Maintainers

ervinchaiervinchai

Keywords

n8n-community-node-packagen8ngooglegeminigenailangchainllm

Readme

@intrvls/n8n-nodes-google-gemini

npm version

An n8n community node that exposes a Google Gemini Chat Model as an AI Language Model sub-node, built on @intrvls/langchain-google-genai — the standalone port of @langchain/google-genai re-based onto the new @google/genai SDK and pinned to the @langchain/core line n8n ships (1.1.x).

It is a feature-complete equivalent of n8n's built-in LmChatGoogleGemini node, packaged for standalone/community installation and wired to the port instead of the upstream LangChain package.

Features

  • Outputs an ai_languageModel connection — drop it onto any AI Agent or Chain node.
  • Model selector populated live from the Gemini API (GET /v1beta/models), filtering out embedding/imagen models and anything older than Gemini 2.5 (1.x, 2.0, and unversioned aliases), sorted alphabetically.
  • Node versions 1 and 1.1 with version-appropriate default models (models/gemini-2.5-flash for v1, models/gemini-3-flash-preview for v1.1+).
  • Thinking / reasoning controls:
    • Thinking Level (Minimal / Low / Medium / High) — the reasoning-effort knob for Gemini 3+.
    • Thinking Budget (token integer; -1 dynamic, 0 off) — the equivalent control for Gemini 2.5.
    • Include Thoughts — return the model's thought summaries when available.
    • These are sent as thinkingConfig and omitted entirely when unset (the API rejects them on non-thinking models).
  • Options: maximum output tokens, sampling temperature, top-K, top-P, stop sequences (up to 5), maximum retries, and JSON-only output.
  • Safety settings (fixedCollection): per-HarmCategory block thresholds, mapped to @google/genai's HarmCategory / HarmBlockThreshold enums.
  • Uses the standard googlePalmApi credential (API key + host).

Installation

In n8n: Settings → Community Nodes → Install, then enter @intrvls/n8n-nodes-google-gemini.

Compatibility

Local development

npm install
npm run build   # tsc && gulp build:icons — compiles to dist/ and copies the SVG icon
npm run dev     # tsc --watch
npm run lint    # tsc --noEmit (type-check only)

The compiled dist/credentials and dist/nodes entries are referenced from the n8n block in package.json. dist/ is gitignored and rebuilt automatically on publish via the prepublishOnly script.

Credentials

Create a Google Gemini(PaLM) Api (googlePalmApi) credential:

| Field | Description | | ------- | ------------------------------------------------------------------------ | | Host | API base URL (default https://generativelanguage.googleapis.com) | | API Key | Your Google Generative Language / AI Studio API key |

The credential authenticates by appending ?key=<apiKey> and is tested against /v1beta/models.

Links

License

MIT