n8n-nodes-liner

This is an n8n community node for Liner. It lets you use Liner's Search, Quick Answer, AI Search, and Deep Research APIs in n8n workflows.

Liner provides source-backed AI search APIs for applications that need fresh web context, academic retrieval, cited answers, and long-form research reports.

n8n is a workflow automation platform.

Installation

Follow the n8n community node installation guide.

For self-hosted n8n, install the package from npm once published:

npm install n8n-nodes-liner

Operations

Search

• Web Search: Calls /search/web and returns structured web results.
• Scholar Search: Calls /search/scholar and returns structured scholarly results.

Search parameters include:

• Query
• Country code for Web Search
• Language
• Date range
• Max results
• Request ID

Answer

• Quick Answer: Calls /quick-answer for a fast answer with sources.
• AI Search: Calls /ai-search for a grounded answer with richer source metadata.
• AI Search Pro: Calls /ai-search-pro for deeper search coverage.
• Deep Research: Calls /deep-research for a long-form research report.
• Deep Research Pro: Calls /deep-research-pro for deeper long-form research.

Answer and research operations accept either a single question or a full messages JSON array. Streaming Server-Sent Events are aggregated into JSON output with:

• text
• reasoning
• references
• referenceChunks
• tasks
• searchSteps
• metadata
• message_id
• event_counts
• raw_events, when enabled

Credentials

You need a Liner API key.

1. Go to the Liner API platform.
2. Create an API key from the API Keys page.
3. In n8n, create a new Liner API credential.
4. Paste the API key into the API Key field.

The credential sends your key as the x-api-key header. Credential tests and node actions call Liner API endpoints at https://platform.liner.com/api/v1.

Usage

Use Search when you want raw results for your own RAG or summarization workflow. Use Answer when you want Liner to generate a source-backed answer or research report.

Example AI Search input:

{
  "messages": [
    {
      "role": "user",
      "content": "Summarize today's semiconductor export control news."
    }
  ],
  "lang": "en",
  "mode": "general"
}

The node is marked usableAsTool, so it can also be connected to n8n AI Agent workflows.

Compatibility

This package was scaffolded with @n8n/node-cli and is intended for current n8n releases that support verified community nodes.

Development

npm install
npm run lint
npm run build

Run a local n8n instance with this node loaded:

npm run dev

Publishing

The repository includes .github/workflows/publish.yml for npm publishing with GitHub Actions provenance. n8n requires provenance publishing for verified community node submissions.

Before publishing, configure npm Trusted Publishing for this repository or add an NPM_TOKEN Actions secret.

Resources

• Liner Developers
• Liner Quick Start
• Liner Search API
• Liner AI Search API
• Liner Deep Research API
• Liner Quick Answer API
• n8n community nodes documentation

Version History

0.1.0

Initial community node with Search, Quick Answer, AI Search, AI Search Pro, Deep Research, and Deep Research Pro operations.