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n8n-nodes-concordance

v0.1.0

Published

Cross-source search, corroboration, and structured data (18 real-time sources: news, SEC filings, court opinions, academic papers, economic indicators, market data) via Concordance, paid per call in USDC on Base through x402 -- no API keys.

Downloads

151

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

vohlsyrvohlsyr

Keywords

n8n-community-node-packagex402searchdatacorroborationpayments

Readme

n8n-nodes-concordance

This is an n8n community node. It lets you use Concordance in your n8n workflows.

Concordance searches, corroborates, and structures data across 18 independent real-time sources — news, SEC filings, court opinions, academic papers, economic indicators, and market data. Its corroboration endpoint tells you how many independent sources back a claim vs. whether it traces back to a single origin. No LLM in the pipeline — results are cited, not summarized/hallucinated. Paid per call in USDC on Base via x402 — no API keys, no signup.

n8n is a fair-code licensed workflow automation platform.

Installation Operations Credentials Compatibility Usage Resources

Installation

Follow the installation guide in the n8n community nodes documentation, or install n8n-nodes-concordance directly from the Community Nodes tab in a self-hosted n8n instance.

Operations

  • Search — free-text search across all 18 sources, with optional source/category filters.
  • Series — economic/market data series (e.g. FRED GDP, TwelveData price series).
  • Digest — cross-category roundup on a topic, grouped by category.
  • Company Brief — market data + SEC filings + general mentions for one company in a single call.
  • Corroboration — for a claim, how many independent sources back it vs. single-origin repetition.
  • Timeline — chronological entries for a topic across all sources.

Credentials

You need an EVM wallet funded with a small amount of USDC on Base mainnet. Create a "Concordance Wallet" credential in n8n and paste the wallet's private key — it's used locally, at execution time, to sign each payment; it is never sent to Concordance or logged anywhere.

The credential also has a Max Payment Per Call field (default $0.25) — a local safety ceiling. The node refuses to sign a payment above this amount no matter what a response asks for, protecting the wallet against a compromised or malicious server requesting an inflated charge.

Compatibility

Tested against n8n's programmatic node API v1. Requires Node.js 20+ (same as n8n itself).

Usage

Pick a Tool from the dropdown; the relevant fields appear below it. Each execution pays for exactly one call.

Resources