---
title: "Create Fingerprint"
method: POST
path: "/api/fingerprint"
tags: ["stackups"]
---

# Create Fingerprint

`POST /api/fingerprint`

## Request

- Base URL: `https://api.pcbgenerator.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.pcbgenerator.com/api/fingerprint`
- Auth: none declared

Deterministic hash for a stackup configuration (cache/dedupe key).

## Request body

- FingerprintRequest
  - `layer_count` integer, required
  - `materials` MaterialInput[], required
    - `name` string
    - `thickness_mm` number, nullable
    - `dk` number, nullable
  - `copper_weights` string[], required
  - `build_type` string, required

## Response `200`

Successful Response

- object

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/pcbgenerator/apis/pcb-stackup-generator-api.md) · [All operations](https://skmtc.dev/pcbgenerator/apis/pcb-stackup-generator-api/llms.txt) · [OpenAPI document](https://skmtc.dev/pcbgenerator/apis/pcb-stackup-generator-api/revisions/b6084b3ace32?raw)