1. Purpose of This Policy
Synaxic API is designed to serve a diverse community of developers. To ensure reliable service for everyone, we enforce fair use guidelines that prevent abuse while allowing legitimate, high-volume applications.
This policy supplements our Terms of Service and defines what constitutes acceptable usage.
2. Rate Limits
We enforce the following rate limits to maintain service quality:
🌐
Anonymous Users
1,000 req/hour
No authentication required
🔑
API Key Users
10,000 req/hour
Requires free account registration
⚡
Static Resources
50,000 req/hour
HTML, CSS, JS, images (DDoS protection)
Note: Rate limits are enforced per IP address (anonymous) or per user (API key). Limits reset every hour.
3. What is Considered Fair Use?
✅ Acceptable Use Cases:
- Integrating our APIs into web or mobile applications
- Running automated tests or CI/CD pipelines
- Building internal tools for your organization
- Educational projects and research
- Caching results to reduce API calls
- Implementing exponential backoff on rate limit errors
4. What is Considered Abuse?
❌ Prohibited Activities:
- Circumventing Rate Limits: Using proxies, VPNs, or rotating IPs to evade restrictions
- Excessive Bursts: Sending thousands of requests in seconds (even if under hourly limit)
- Denial of Service: Intentionally overloading our infrastructure
- Scraping & Harvesting: Bulk downloading data beyond API-provided endpoints
- API Reselling: Redistributing API access to third parties without permission
- Malicious Payloads: Sending SQL injection, XSS, or other attack vectors
- Ignoring 429 Errors: Continuing to send requests after hitting rate limits
5. Best Practices
Follow these guidelines to ensure smooth API integration:
- Implement Caching: Store results locally to minimize redundant API calls
- Use Exponential Backoff: When you receive a 429 error, wait before retrying (start with 1s, then 2s, 4s, etc.)
- Monitor Rate Limit Headers: Check
X-RateLimit-Remaining to track your quota
- Batch Requests: Consolidate multiple operations when possible
- Use API Keys: Get 10x higher limits by signing up for a free account
- Report Bugs: If you encounter issues, contact us instead of retrying aggressively
6. Consequences of Abuse
Violations of this policy may result in:
- Temporary Rate Limit Reduction: Your quota may be lowered for 24-72 hours
- IP or API Key Suspension: Access blocked for repeated violations
- Permanent Account Termination: In cases of severe or malicious abuse
- Legal Action: For attacks causing infrastructure damage or data breaches
We will attempt to contact you before permanent action, but reserve the right to act immediately if necessary.
7. Higher Rate Limits
If you need higher rate limits for a reasonable case, contact us at [email protected]
8. Monitoring & Enforcement
We use automated systems to detect abuse patterns, including:
- Request rate anomalies (sudden spikes or sustained bursts)
- Suspicious IP behavior (proxy/VPN rotation)
- Malformed or malicious payloads
- Patterns consistent with scraping or DDoS attacks
Alerts are reviewed by our team, and false positives can be appealed.
9. Appeals Process
If you believe your account was suspended in error:
- Email [email protected] with your account details
- Provide context about your usage patterns and application
- Our team will review within 48 hours and respond with a decision
We aim to be fair and transparent in all enforcement decisions.
10. Changes to This Policy
We may update this Fair Use Policy to reflect infrastructure changes or new abuse patterns. Changes will be posted on this page with an updated date.
Material changes will be communicated to registered users via email.