---
title: "Document ↔ corpus contrast (Hybrid RAG, BYOD) · 0 credits"
method: POST
path: "/api/v1/vector-contrast"
tags: ["Nodes"]
---

# Document ↔ corpus contrast (Hybrid RAG, BYOD) · 0 credits

`POST /api/v1/vector-contrast`

## Request

- Base URL: `https://legal.nexusquantum.legal`
- URL: `https://legal.nexusquantum.legal/api/v1/vector-contrast`
- Auth: HTTP bearer

Contrasts a client contract against the case-law sources supplied (BYOD). Free by design (rate limit + max_tokens, no debit). Thin loopback (via `startNodeRequest`) to `/api/vector-contrast`. Scope: mcp | *. `jurisdiction` optional passthrough (no ES default). Not exposed as an MCP tool (LLM).

## Request body

- object
  - `contractText` string, required
  - `jurisprudenceSources` object[], required
  - `language` string
  - `jurisdiction` string

## Response `200`

Contrast result.

- object

## Other responses

- `401`: Invalid API key.

---

[API](https://skmtc.dev/nexusquantum/apis/nexus-legal-api.md) · [All operations](https://skmtc.dev/nexusquantum/apis/nexus-legal-api/llms.txt) · [OpenAPI document](https://skmtc.dev/nexusquantum/apis/nexus-legal-api/revisions/4084d8d4eb0b?raw)