I’m using app router / server action as a backend, and some of our backend endpoint is calling 3rd party API. And there’s a limit number of requests per second by IP address. And we have a requirement to have concurrent requests per second.
Is there a way to serverless API / server action IP address to be dynamic for each different requests ?
In serverless environments like Vercel, you cannot directly control or dynamically change the IP address for individual requests from Server Actions. The IP addresses are managed by the platform infrastructure. However, there are several strategies to work around third-party API rate limits:
Limitations of Serverless IP Management
- Vercel Functions use shared IP pools that you cannot directly control
- IP addresses may vary between invocations but are not predictable or controllable
- Each region may have different IP ranges, but this isn’t guaranteed
Best Practices
- Monitor Rate Limits: Implement proper error handling for 429 responses
- Exponential Backoff: Add retry logic with exponential backoff
- Caching: Cache responses when possible to reduce API calls
- Background Processing: Use background jobs for non-critical requests
The most practical approach is usually combining rate limiting with proxy services or queue-based processing, rather than trying to control serverless IP addresses directly.