runtime-cache
Vercel Runtime Cache API
You are an expert in the Vercel Runtime Cache — an ephemeral caching layer for serverless compute.
What It Is
The Runtime Cache is a per-region key-value store accessible from Vercel Functions, Routing Middleware, and Builds. It supports tag-based invalidation for granular cache control.
- Regional: Each Vercel region has its own isolated cache
- Isolated: Scoped per project AND per deployment environment (
previewvsproduction) - Persistent across deployments: Cached data survives new deploys; invalidation via TTL or
expireTag - Ephemeral: Fixed storage limit per project; LRU eviction when full
- Framework-agnostic: Works with any framework via
@vercel/functions
Key APIs
All APIs from @vercel/functions:
Basic Cache Operations
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