---
title: "Validate payment amount and get fee calculation"
method: GET
path: "/api/v1/ExternalPayment/{guid}/validate/{paymentMethod}/{amount}"
tags: ["ExternalPayment"]
---

# Validate payment amount and get fee calculation

`GET /api/v1/ExternalPayment/{guid}/validate/{paymentMethod}/{amount}`

## Request

- Base URL: `https://api.fireserviceusa.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.fireserviceusa.com/api/v1/ExternalPayment/{guid}/validate/{paymentMethod}/{amount}`
- Auth: none declared

## Path parameters

- `guid` string, required
- `paymentMethod` string, required
- `amount` number, double, required

## Response `200`

Success

---

[API](https://skmtc.dev/fireserviceusa/apis/fireservice-usa-p2-api.md) - [All operations](https://skmtc.dev/fireserviceusa/apis/fireservice-usa-p2-api/llms.txt) - [OpenAPI document](https://skmtc.dev/fireserviceusa/apis/fireservice-usa-p2-api/revisions/96ea2ea68d87?raw)