---
title: "Invest"
method: POST
path: "/api/v4/main-account/smart/investment"
tags: ["Crypto Lending - Fixed"]
---

# Invest

`POST /api/v4/main-account/smart/investment`

The endpoint creates a new investment to the specified [invest plan](/glossary#crypto-lending).

<Warning>
Rate limit: 1000 requests/10 sec.
</Warning>

<Note>
The API does not cache the response.
</Note>

## Request body

- object
  - `planId` string, required — [Invest plan](/glossary#crypto-lending) identifier
  - `amount` string, required — Investment amount
  - `request` string, required — Request signature
  - `nonce` integer, required — Unique request identifier

## Response `201`

Investment created successfully

- object
  - `id` string — Investment identifier

## Other responses

- `400` — Request validation failed
- `422` — Inner validation failed Response error codes: - 1 - Investment already exists (when you don't have permissions to create multiple investments by plan) - 2 - Amount is less than min investment amount - 3 - Amount is greater than max investment amount - 4 - Not enough balance to create investment - 5 - No funds in plan to cover target interest amount

---

[API](https://skmtc.net/whitebit/apis/whitebit-private-http-api-v4.md) · [All operations](https://skmtc.net/whitebit/apis/whitebit-private-http-api-v4/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/whitebit/whitebit-private-http-api-v4/revisions/76c9def9942f/schema)