---
title: "Post-9/11 GI Bill entitlement and benefits"
method: GET
path: "/api/v1/calculate/gi-bill"
---

# Post-9/11 GI Bill entitlement and benefits

`GET /api/v1/calculate/gi-bill`

## Request

- Base URL: `https://everycalc.xyz`
- URL: `https://everycalc.xyz/api/v1/calculate/gi-bill`
- Auth: none declared

Months of the 36-month Post-9/11 GI Bill entitlement remaining, tuition coverage percent, maximum annual books stipend, and Monthly Housing Allowance treatment for the given benefit tier and enrollment level. Results match the interactive calculator at everycalc.xyz; every response includes a calculator_url deep link to it.

## Query parameters

- `tier_pct` '100' | '90' | '80' | '70' | '60' | '50' | '40'
- `months_used` number
- `enrollment` 'full' | 'part' | 'half'

## Response `200`

Calculation result.

## Other responses

- `400`: Invalid input.

---

[API](https://skmtc.dev/everycalc/apis/everycalc-api.md) · [All operations](https://skmtc.dev/everycalc/apis/everycalc-api/llms.txt) · [OpenAPI document](https://skmtc.dev/everycalc/apis/everycalc-api/revisions/a4bd5db0868a?raw)