How do I get an API key for Spelling & grammar check, summariser and text compare?

Subscribe to the free plan on the marketplace listing. The key appears immediately and works in the browser playground before you write any code.

How many endpoints does Spelling & grammar check, summariser and text compare have?

Spelling & grammar check, summariser and text compare publishes 1 endpoints. Each one is listed above with its method, path and purpose.

Spelling & grammar check, summariser and text compare

Grammar and punctuation fixes, summaries and diff between two text versions.

Free tier Productivity & writing content localization ai

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Category: Productivity & writing
Endpoints: 1
Updated: 2025-11-26

Overview

Three writing tools behind one API: spelling and grammar correction, summarisation of long documents, and a comparison that highlights what changed between two versions and how similar they are.

Editors, CMS platforms and document tools use it without wiring three separate services.

Endpoints

Endpoints published by Spelling & grammar check, summariser and text compare, with method, path and purpose
Method	Path	What it does
POST	`{\n \`	Check Text (Grammar u0026 Spelling)

Example response

{
    "result": {
        "errors": [
            {
                "type": "grammar",
                "text": "Someone looking into the crystal then directly over the camera.",
                "suggestion": "Someone is looking into the crystal, then directly over the camera.",
                "explanation": "The verb 'looking' lacks auxiliary 'is' for present continuous tense. Also, a comma is needed for clarity before 'then'.",
                "severity": "high",
                "position": {
                    "start": 0,
                    "end": 52
                }
            },
            {
                "type": "punctuation",
                "text": "camera. she can see the victory.",
                "suggestion": "camera. She can see the victory.",
                "explanation": "The sentence following a period must start with a capital letter.",
                "severity": "medium",
                "position": {
                    "start": 51,
                    "end": 71
                }
            },
            {
                "type": "style",
                "text": "she can see the victory.",
                "suggestion": "She can see the victory clearly.",
                "explanation": "Adding 'clearly' enhances clarity and flow.",
                "severity": "low",
                "position": {
                    "start": 57,
                    "end": 71
                }
            },
            {
                "type": "grammar",
                "text": "She is telling an announcement that when booking a ticket at 6pm should be the winner.",
                "suggestion": "She is making an announcement that whoever books a ticket at 6 p.m. will be the winner.",
                "explanation": "Incorrect verb choice 'telling an announce
…

Frequently asked questions

Is Spelling & grammar check, summariser and text compare free?: Spelling & grammar check, summariser and text compare has a Basic plan that costs $0 per month and needs no card. Paid plans exist for higher volume and are listed above.
How do I get an API key for Spelling & grammar check, summariser and text compare?: Subscribe to the free plan on the marketplace listing. The key appears immediately and works in the browser playground before you write any code.
How many endpoints does Spelling & grammar check, summariser and text compare have?: Spelling & grammar check, summariser and text compare publishes 1 endpoints. Each one is listed above with its method, path and purpose.