---
title: Resume Optimizer (ATS) API
slug: optimize-resume-ats
url: https://apyverse.com/namastesumalya/service/optimize-resume-ats
provider: Sumalya APIs
categories: [HR, SEO, Smart Generation]
tags: [resume-optimization, ats, hiring, cv-writing, job-title-tailoring]
auth: api_key
---

# Resume Optimizer (ATS) API

Tailor resume text for a job title and get ATS scores before and after, an improved version, and added keywords for screening.

## Endpoints

| Method | Path | Description | Atoms |
| --- | --- | --- | --- |
| POST | `namastesumalya/api/improve-resume` | What it does Optimizes the provided resume content for ATS by taking the resume text and an optiona… | 250 |

## About

## What it does
Resume ATS Optimizer rewrites a resume for a specific job title and returns an ATS-friendly version with scoring guidance and added keywords.

Send a `jobTitle` and `resumeContent`, and get back `beforeScore`, `afterScore`, `improvedVersion`, and `atsKeywordsAdded`. Use it when you want to tailor a resume to a role like Backend Engineer, compare the current draft against the optimized version, or surface the keywords a resume should include for applicant tracking systems.

The response is designed to be easy to slot into hiring workflows: show the score delta to the candidate, store the improved draft for review, or use the keyword list to highlight missing terminology. Because the API works from the resume text you provide, you can feed it raw applicant content from forms, PDFs, or internal HR systems after extraction.

This is a good fit for tools that help candidates refine resumes, recruiter platforms that generate role-specific rewrites, and internal hiring apps that standardize resume quality before screening.

## Usage

Authenticate with an ApyHub API key in the `apy-token` header.
Full docs and a live playground: https://apyverse.com/namastesumalya/service/optimize-resume-ats