Stack Cost AI

Serverless And Function As A Servicehobby stack.

For each requirement below, pick the option that fits your build — recommended first, then free and cheaper alternatives — or skip what your project doesn't need. Tap the info icon next to any requirement to see why it matters.

FaaS Platform / Compute Runtime

Pricing & free-tier limitsLambda Free: 1M req + 400k GB-sec/mo forever, $0.20/1M req + $0.0000166667/GB-sec after, Prov Conc $0.0000041667/GB-sec. CF Workers Free 100k req/day, Paid $5/mo includes 10M req + $0.50/M after, $0.02/GB-sec wall-clock. Vercel Free 100GB-hrs/mo, Pro $20/mo + $40/100GB-hrs overage, 1000GB-hrs $0.18/GB-hr. Netlify Free 125k req/mo + 100hrs runtime, Pro $19/mo 2M req.

Event Source / Queue

Pricing & free-tier limitsSQS Free 1M req/mo forever, $0.40/M req Standard after ($0.50/M FIFO), first 1GB transfer free $0.09/GB after. CF Queues Free 1M ops/mo, $5/mo includes 10M ops $0.40/M after. QStash Free 500 msgs/day, $10/mo 75k msgs $0.50/M over. Upstash Queue Free 10k msg/day.

Event Bus / Orchestration

Pricing & free-tier limitsEventBridge Free 100k custom events/mo same bus (14M Scheduler free 12mo), $1.00/M events custom after, $0.10/M AWS events, Archive Replay $0.10/100k events, Schema $0.10/M discovered. Inngest Free 100k step runs/mo, $20/mo 500k $0.30/1k over. Cloudflare Event Notifications $5/mo 1M events.

API Gateway for FaaS

Pricing & free-tier limitsAPI GW REST $3.50/M req + $0.09/GB data out, first 1M free 12mo, WebSocket $1.00/M + $0.25/M connection-min. HTTP API $1.00/M req + $0.09/GB out, Free 1M 12mo. Cloudflare API Gateway Free with Workers, Enterprise $20/mo 1M calls incl + $1/M over, rate limiting included. Kong OSS free self-host, Konnect $250/mo.

Object Storage for FaaS Artifacts & State

Pricing & free-tier limitsS3 $0.023/GB-mo first 50TB, $0.0225 next 450TB, PUT $0.005/1k, GET $0.0004/1k, Free 5GB 12mo. R2 Free 10GB storage + 10M Class A + 10M Class B ops/mo forever, $0.015/GB-mo + $4.50/M Class A + $0.36/M Class B after, egress free. B2 $0.006/GB-mo storage $0.005/1k download, free egress via CF.

Secrets Management for FaaS

Pricing & free-tier limitsAWS Secrets $0.40/secret/mo + $0.05/10k API calls, rotation Lambda free, 30-day trial. Doppler Free 5 users, 100 secrets, 100 config syncs, Starter $8/user/mo unlimited secrets $0.50/secret over 1000. Infisical Free 3 env, $20/mo Starter $0.20/secret over. Vault HCP $0.095/hr dev cluster ~$69/mo + Standard $0.30/hr ~$219/mo.

Log Management & Aggregation for FaaS

Pricing & free-tier limitsCloudWatch $0.50/GB ingested (first 5GB free forever), $0.03/GB-mo archive, Insights $0.005/GB scanned, 3-day free Live Tail. Better Stack Free 1GB/mo 3-day retain, $24/mo 10GB 7-day, $0.45/GB over. Axiom Free 500MB/day 30-day, $25/mo 10GB. Datadog $0.10/GB ingested + $1.70/M indexed events + $0.10/GB 15mo rehydrate.

Monitoring & Distributed Tracing for FaaS

Pricing & free-tier limitsX-Ray Free 100k traces/mo recorded + 1M retrieved/mo forever, $5/M traces recorded after + $0.50/M scanned. Lambda Insights $0.02/GB-hr. Grafana Cloud Free 10k metrics series, 50GB logs, 50GB traces, $8/user/mo Pro. Datadog APM $31/host/mo $0.10/GB ingest, Infra $15/host/mo, Serverless $1.70/M invocations enhanced metrics.

Error Tracking for Functions

Pricing & free-tier limitsSentry Free 5k errors/mo, 10k transactions, 50 replays, 1 user. Team $26/mo includes 50k errors $0.00026/error over, 100k transactions. Business $80/mo 100k errors. GlitchTip OSS free self-host or Cloud $12/mo 10k events. Highlight Free 500 errors/mo, $50/mo 10k $0.02/error over.

CI/CD for Function Deployment

Pricing & free-tier limitsGitHub Actions Free 2000 min Linux + 500MB packages + Actions Cache, Pro $4/mo 3000 min $0.008/min after, $0.25/GB storage over. GitLab Free 400 min/mo $0.008/min over shared. AWS CodeBuild $0.005/min Linux 2vCPU, $0.30/GB cache, CodePipeline $1/active pipeline/mo free 1. Depot $50/mo 2x faster.

Infrastructure as Code for FaaS

Pricing & free-tier limitsTerraform CLI OSS free, Terraform Cloud Free 500 resources, Team $20/user/mo + $0.00014/RUM, Plus $35/user. Pulumi OSS free, Team $75/mo 3 members + $10/user over + $0.50/100 credits, Enterprise custom. SAM/CDK free - pay deployed resources only.

Options and prices come straight from our research sheets for a hobby serverless and function as a service project. Prices are estimates and change often — always confirm on the provider's page before committing.

How this hobby serverless and function as a service checklist works.

Each requirement below is something a hobby serverless and function as a service build typically needs. Pick one of the four researched options — recommended, free, cheaper or paid — add your own with "Other", or skip the requirement if your project doesn't need it. Nothing is mandatory; the plan on the right tracks what you've decided so nothing gets forgotten.

Your picks are saved in this browser automatically, so you can come back anytime. Options are researched per build level and refreshed as vendors change their plans — always verify details on the provider's page before committing.