Skills Development Grammarly API Debugging and Troubleshooting

Grammarly API Debugging and Troubleshooting

v20260423
grammarly-debug-bundle
This bundle collects comprehensive diagnostic evidence for troubleshooting Grammarly API integration issues. It captures API connectivity status, text check responses, authentication details, and rate limit headers. Use this when encountering persistent errors, preparing detailed support tickets, or performing automated health checks on Grammarly services.
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Overview

Grammarly Debug Bundle

Overview

Collect Grammarly API connectivity status, text analysis response quality, authentication state, and rate limit usage into a single diagnostic archive. This bundle helps troubleshoot text check failures, missing suggestions, OAuth token expiration, and API response latency.

Debug Collection Script

#!/bin/bash
set -euo pipefail
BUNDLE="debug-grammarly-$(date +%Y%m%d-%H%M%S)"
mkdir -p "$BUNDLE"

# Environment check
echo "=== Grammarly Debug Bundle ===" | tee "$BUNDLE/summary.txt"
echo "Generated: $(date -u +%Y-%m-%dT%H:%M:%SZ)" >> "$BUNDLE/summary.txt"
echo "GRAMMARLY_API_KEY: ${GRAMMARLY_API_KEY:+[SET]}" >> "$BUNDLE/summary.txt"
echo "GRAMMARLY_CLIENT_ID: ${GRAMMARLY_CLIENT_ID:+[SET]}" >> "$BUNDLE/summary.txt"

# API connectivity — text check endpoint
HTTP=$(curl -s -o /dev/null -w "%{http_code}" \
  -H "Authorization: Bearer ${GRAMMARLY_API_KEY}" \
  -H "Content-Type: application/json" \
  -X POST https://api.grammarly.com/v1/check \
  -d '{"text": "This are a diagnostic test sentence with intentional grammar errors to verify the API returns suggestions."}' \
  2>/dev/null || echo "000")
echo "API Status: HTTP $HTTP" >> "$BUNDLE/summary.txt"

# Full text check response
curl -s -H "Authorization: Bearer ${GRAMMARLY_API_KEY}" \
  -H "Content-Type: application/json" -X POST https://api.grammarly.com/v1/check \
  -d '{"text": "This are a diagnostic test sentence with intentional grammar errors to verify the API returns suggestions."}' \
  > "$BUNDLE/text-check.json" 2>&1 || true

# Account info and rate limit headers
curl -s -D "$BUNDLE/rate-headers.txt" -H "Authorization: Bearer ${GRAMMARLY_API_KEY}" \
  https://api.grammarly.com/v1/account > "$BUNDLE/account.json" 2>&1 || true

tar -czf "$BUNDLE.tar.gz" "$BUNDLE" && rm -rf "$BUNDLE"
echo "Bundle: $BUNDLE.tar.gz"

Analyzing the Bundle

tar -xzf debug-grammarly-*.tar.gz
cat debug-grammarly-*/summary.txt                 # Auth + API status
jq '.alerts | length' debug-grammarly-*/text-check.json  # Suggestion count
jq '.alerts[] | {type, text}' debug-grammarly-*/text-check.json  # Suggestion details
grep -i "ratelimit\|retry" debug-grammarly-*/rate-headers.txt

Common Issues

Symptom Check in Bundle Fix
API returns 401 summary.txt shows HTTP 401 Refresh OAuth token or regenerate API key in Grammarly Developer Hub
Zero suggestions returned text-check.json has empty alerts array Verify text exceeds minimum word count (30 words); check language parameter
High latency (>5s) text-check.json shows slow response time Reduce text payload size; check for network proxy interference
Rate limited (429) rate-headers.txt shows Retry-After Implement request queuing; reduce check frequency per user session
Client ID mismatch account.json returns permission error Verify GRAMMARLY_CLIENT_ID matches the app registered in Developer Hub

Automated Health Check

async function checkGrammarly(): Promise<void> {
  const key = process.env.GRAMMARLY_API_KEY;
  if (!key) { console.error("[FAIL] GRAMMARLY_API_KEY not set"); return; }

  const res = await fetch("https://api.grammarly.com/v1/check", {
    method: "POST",
    headers: { Authorization: `Bearer ${key}`, "Content-Type": "application/json" },
    body: JSON.stringify({ text: "This are a test sentence with grammar errors for diagnostic purposes and validation." }),
  });
  console.log(`[${res.ok ? "OK" : "FAIL"}] API: HTTP ${res.status}`);

  if (res.ok) {
    const data = await res.json();
    console.log(`[INFO] Suggestions returned: ${data.alerts?.length ?? 0}`);
  }
}
checkGrammarly();

Resources

Next Steps

See grammarly-common-errors.

Info
Category Development
Name grammarly-debug-bundle
Version v20260423
Size 4.33KB
Updated At 2026-04-28
Language