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Cost Optimization

Minimize costs when running EdgeBase on Cloudflare.

Cloudflare Pricing Overview​

ResourceFree TierPaid Plan
Workers Requests100K/day10M/month included
DO Requests—1M/month included
DO Storage—1GB included
R2 Storage10GB10GB + $0.015/GB
R2 Operations1M reads/month10M + $0.36/M
R2 Egress$0$0
KV Reads100K/day10M/month

Cost Strategies​

1. Use DB block for Multi-Tenancy​

Isolating by user or workspace distributes data across Durable Objects, keeping each DO small:

tables: {
  notes: {
    user:{id} DB block,  // Each user = own DO
  },
}

✅ Benefits: Small SQLite databases, fast queries, natural data isolation ⚠️ Tradeoff: Cross-user queries require aggregation patterns

2. Minimize DO Billing Duration​

Durable Objects charge per GB-second while a DO has an active request. EdgeBase uses context.waitUntil() for background work to return responses fast, minimizing billing duration.

3. Rate Limiting at Zero Cost​

HTTP rate limiting uses a 2-layer approach: a per-isolate software counter (primary) and a Cloudflare Rate Limiting Binding (safety net). That path does not use DO storage. Realtime's separate pending-connection gate does use KV, so treat it as a different mechanism. See Rate Limiting for details.

4. R2 for Zero-Egress Storage​

Cloudflare R2 has $0 egress. Serve files (images, videos, PDFs) from R2 instead of bundling in DO storage.

5. D1-Based Auth (Built-in)​

Auth operations go directly to D1 (AUTH_DB), with no Durable Object overhead. D1 provides global consistency and the Workers Paid plan includes 25B reads and 50M writes per month — auth is effectively free at any scale with no per-request DO cost. If you outgrow D1 limits, switch to Neon PostgreSQL with a single config change — no code modifications, no migration downtime.

Example Monthly Costs​

Small App (1K MAU, 100K requests/month)​

ResourceUsageCost
Workers PaidBase (account-level)$5.00
DO Requests~200K$0 (included)
R2 Storage1GB$0 (included)
Total$5/month

Medium App (50K MAU, 5M requests/month)​

ResourceUsageCost
Workers PaidBase$5.00
DO Requests~10M$0.15 × 9 = $1.35
DO Storage5GB$0.20 × 4 = $0.80
R2 Storage50GB$0.015 × 40 = $0.60
Total~$8/month

Large App (500K MAU, 50M requests/month)​

ResourceUsageCost
Workers PaidBase$5.00
Workers Requests50M$0.30 × 40 = $12.00
DO Requests~100M$0.15 × 99 = $14.85
DO Storage50GB$0.20 × 49 = $9.80
R2 Storage500GB$0.015 × 490 = $7.35
Total~$49/month

Compare with Firebase ($275 auth alone at 100K MAU) or Supabase ($25 base + usage).