Grammar Check

Overview

Pass any raw string in the request body to scan it for grammatical issues and misspelled words. The response states whether modifications were needed, counts the total issues found, and provides the fully revised text. Subscribers on paid plans also receive character offsets, violated rules, and specific replacement suggestions for each error.

Endpoint

One host, one path per API. The block below shows this call in four languages; every one of them is the same HTTP request. Making requests covers the timeouts, retries and parameter rules that apply to all of them. The SDKs wrap the same call in a typed client.

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curl -X POST https://api.apiverve.com/v1/grammarcheck \
  -H "x-api-key: your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
  "text": "The the pig snorted when I saw it on the barn gate. I was a little mad becuase it woke up my pupppppy"
}'

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const res = await fetch('https://api.apiverve.com/v1/grammarcheck', {
  method: 'POST',
  headers: {
    'x-api-key': 'your_api_key_here',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
  "text": "The the pig snorted when I saw it on the barn gate. I was a little mad becuase it woke up my pupppppy"
}),
});

if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);

const { data } = await res.json();
console.log(data);

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import requests

res = requests.post(
    "https://api.apiverve.com/v1/grammarcheck",
    headers={"x-api-key": "your_api_key_here"},
    json={
    "text": "The the pig snorted when I saw it on the barn gate. I was a little mad becuase it woke up my pupppppy"
},
    timeout=15,
)
res.raise_for_status()

print(res.json()["data"])

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package main

import (
	"fmt"
	"io"
	"net/http"
	"strings"
)

func main() {
	body := strings.NewReader(`{
  "text": "The the pig snorted when I saw it on the barn gate. I was a little mad becuase it woke up my pupppppy"
}`)
	req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/grammarcheck", body)
	req.Header.Set("Content-Type", "application/json")
	req.Header.Set("x-api-key", "your_api_key_here")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	out, _ := io.ReadAll(res.Body)
	fmt.Println(string(out))
}

Replace your_api_key_here with the key from your dashboard. When the inputs arrive as a list rather than one at a time, batch requests run up to 200 of them through this same API in a single call.

Authentication

Send your key in the x-api-key header. That is the only auth step — there is no token exchange and no per-endpoint scope to configure. Authentication covers creating, rotating and revoking keys.

Parameters

Sent as JSON in the request body. Premium parameters are accepted on every plan but only take effect on plans that include them.

Response

Every API returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape. Response format covers the envelope, the other output formats and how premium fields are withheld.

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{
  "status": "ok",
  "error": null,
  "data": {
    "modified": true,
    "corrected": "The pig snorted when I saw it on the barn gate. I was a little mad because it woke up my puppy",
    "errorCount": 3,
    "corrections": [
      {
        "rule": "repeated_word",
        "message": "Did you mean to repeat the word \"The\"?",
        "position": {
          "start": 0,
          "end": 7
        },
        "suggestions": [
          "The"
        ]
      },
      {
        "rule": "spelling",
        "message": "Did you mean \"because\"?",
        "position": {
          "start": 67,
          "end": 74
        },
        "suggestions": [
          "because"
        ]
      },
      {
        "rule": "spelling",
        "message": "Did you mean \"puppy\"?",
        "position": {
          "start": 92,
          "end": 101
        },
        "suggestions": [
          "puppy"
        ]
      }
    ]
  }
}

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.

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change. Error handling covers the full status list and which of them are worth retrying.

Use cases

Content Management Proofing

Flag grammar mistakes in submitted blog drafts and substitute corrected sentences before publishing articles to readers.

Customer Support Messaging

When agents write replies in ticketing desks, the system uses the error count to warn them of uncorrected typos.

Resume Intake Screening

Job portals scan cover letters during applicant uploads, noting whether the text was modified to preserve clean candidate profiles.

Student Essay Feedback

Learning management platforms pass student submissions to display the number of errors and return properly formatted text.

Other ways to use Grammar Check

Set up Grammar Check on APIVerve, or reach the same source a different way. Your APIVerve account and credits work on all of them — one key, one balance.

Related

More in Text Processing: