---
title: "Spline Curve"
method: POST
path: "/quantlib/numerical/interpolation/spline-curve"
tags: ["quantlib-numerical"]
---

# Spline Curve

`POST /quantlib/numerical/interpolation/spline-curve`

## Request

- Base URL: `https://api.fincept.in` (the document declares no server; this is the origin it was published from)
- URL: `https://api.fincept.in/quantlib/numerical/interpolation/spline-curve`
- Auth: API key in header `X-API-Key`

Evaluate cubic spline at multiple points

## Request body

- SplineEvalRequest
  - `x_data` number[], required
  - `y_data` number[], required
  - `xi` number[], required
  - `bc_type` string

## Response `200`

Successful Response

- unknown

## Other responses

- `422`: Validation Error

---

[API](https://skmtc.dev/fincept/apis/fincept-api.md) · [All operations](https://skmtc.dev/fincept/apis/fincept-api/llms.txt) · [OpenAPI document](https://skmtc.dev/fincept/apis/fincept-api/revisions/e9c0076ea55a?raw)