Title Case Converter API

About the Title Case Converter API

Title Capitalization works by analyzing the title text provided and converting it to various cases. It uses advanced algorithms to convert the text to title cases based on your requirements.

What people use it for

Editorial Style Enforcement

Editorial desks format draft article headlines to Chicago or AP rules automatically before publishing to the live site.

Citation Bibliography Formatting

Reference management software converts uploaded paper titles to APA or MLA casing before building bibliography export files.

Campaign Subject Normalization

When scheduling outbound broadcasts, email tools pass draft subject lines through the API to enforce uniform sentence-case styling.

Technical Documentation Linting

To maintain uniform guides, build pipelines convert markdown section headings into matching APA or sentence case styles during deployment.

Ways to call it

One endpoint, many ways in — REST with JSON, XML, YAML and CSV, plus GraphQL and an MCP interface for AI agents.

JSON

Default REST response

XML

Markup format

YAML

Human-readable

CSV

Tabular export

Beta

GraphQL

Query language

New

MCP

For AI agents

Request parameters — POST /v1/titlecapitalization

Sent as JSON in the request body. Premium parameters are accepted on every plan but only take effect on plans that include them. Anything not listed here is dropped rather than passed through.

Required

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curl -X POST "https://api.apiverve.com/v1/titlecapitalization" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"comprehensive analysis of quarterly financial performance and strategic initiatives for sustainable growth","style":"title-case"}'

Authentication

Send your key in the x-api-key header. That is the only auth step — no token exchange, and no per-endpoint scope to configure.

Response — POST /v1/titlecapitalization

Every APIVerve endpoint returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape.

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{
  "status": "ok",
  "error": null,
  "data": {
    "style": "title-case",
    "text": "Comprehensive Analysis of Quarterly Financial Performance and Strategic Initiatives for Sustainable Growth"
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Response headers

Every response carries your balance, so your own code always knows where it stands without polling anything. All four are exposed to browsers through CORS.

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change.

What a call costs — 2 credits per call

Credits are shared across every APIVerve API — one balance, one key, one bill. Failed requests never count against it, so a rejected input costs nothing.

Calls are what the credits buy at this API's rate — spend them here, on any of the other APIs, or across both. Nothing is reserved per endpoint.

Zero-code embed — one snippet, no backend

Drop an interactive Title Case Converter form onto any page. The widget calls the API for you, so no key ever appears in your markup and there is nothing to deploy.

Changelog — Title Case Converter API

Every change to this endpoint, newest first. Breaking changes ship as a new version and the previous one keeps serving — response fields are added, never removed or retyped in place, so an integration written against v1 keeps working.

Currently v1