Quality And Observability — small scale 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.
Data Quality Platform
A piece of your stack you may or may not need, depending on scope. Pick the option that fits — or skip it if your project doesn’t require this capability yet.Pricing & free-tier limitsGreat Expectations OSS $0 unlimited checks self-hosted | Soda Cloud Free 1,000 checks/mo, 10 datasets $0 then Pro $300/mo 10k checks $0.05/check overage | Metaplane Free 10 tables $0, Pro $250/mo 50 tables $5/table/mo overage | Monte Carlo $30k/yr (~$2,500/mo) 100 tables included $100/table/mo over | Bigeye $20k/yr (~$1,667/mo) 150 tables included $90/table/mo over
Validation Framework / Runtime
Where your code actually runs and serves requests. Picking the right host affects speed, scaling, and how much ops work you do.Pricing & free-tier limitsGreat Expectations OSS $0 5k validations/mo self-hosted | dbt Core OSS $0, dbt Cloud Developer Free 1 seat $0, Team $100/seat/mo 100 models $0.50/model over | SodaCL OSS $0 unlimited, Cloud Free 1k checks $0 | Monte Carlo included in platform $2,500/mo 100 rules $25/rule/mo overage
Anomaly Detection Service
A piece of your stack you may or may not need, depending on scope. Pick the option that fits — or skip it if your project doesn’t require this capability yet.Pricing & free-tier limitsDeequ OSS $0 self-hosted on EMR ($0.15/hr EMR surcharge) 10k checks free | TFVD OSS $0 | Metaplane anomaly included in Pro $250/mo 50 tables $5/table over | Anomalo Starter $30k/yr (~$2,500/mo) 50 tables, $600/table/yr overage, Enterprise $60k/yr 200 tables $400/table/yr over | Monte Carlo ML anomaly $2,500/mo included
Freshness / SLA Monitoring
Tells you when things break and why. You cannot fix what you cannot see — this is how you keep downtime short.Pricing & free-tier limitsOSS cron+GE $0 self-hosted | Better Stack Free 10 monitors 1-min checks $0, Team $24/mo 100 monitors $0.20/monitor/mo over | Metaplane Free 10 tables freshness 30-min interval $0, Pro $250/mo 50 tables 1-min interval $5/table/mo over | Monte Carlo freshness included $2,500/mo 100 tables, $25/table/mo over | Cronitor Free 5 monitors $0, Business $48/mo 50 monitors
Data Lineage for Quality Context
A piece of your stack you may or may not need, depending on scope. Pick the option that fits — or skip it if your project doesn’t require this capability yet.Pricing & free-tier limitsMarquez OSS $0 unlimited runs/lineage edges self-hosted | OpenLineage OSS $0 | DataHub OSS $0 10k edges, Cloud Free 20 assets $0, Pro $200/mo 500 assets $1/asset/mo over | Atlan Free 5 users 20 assets $0, Team $700/mo 50 assets, Enterprise $3,500/mo 500 assets $2/asset/mo over | Collibra $40k/yr starter
Alerting & Incident Routing
Tells you when things break and why. You cannot fix what you cannot see — this is how you keep downtime short.Pricing & free-tier limitsSlack webhooks $0 unlimited | Email $0 | Better Stack Free 10 alerts/mo $0, Team $29/mo 500 alerts $0.10/alert over on-call free | PagerDuty Free 1 user 5 services $0, Starter $29/user/mo 1k alerts/mo $0.15/alert over, Pro $49/user/mo 5k alerts $0.10/alert over, Enterprise $99/user/mo unlimited
Data Warehouse for Quality Metrics Store
A piece of your stack you may or may not need, depending on scope. Pick the option that fits — or skip it if your project doesn’t require this capability yet.Pricing & free-tier limitsDuckDB $0 local unlimited | Postgres OSS $0 | BigQuery Free 10GB storage + 1TB queries/mo $0 then $0.02/GB storage $6.25/TiB queries $0.04/GB scanned over | Snowflake Free $400 credit trial, Standard $2/credit (~$40/TB scanned) storage $40/TB/mo $0.04/GB over | Databricks SQL $0.22/DBU $0.15/GB storage over free
Object Storage for Quality Logs & Checkpoints
Where you keep files users upload or you serve — images, videos, documents — and how fast they reach visitors around the world.Pricing & free-tier limitsMinIO OSS $0 unlimited self-hosted | R2 Free 10GB storage + 10M Class A ops/mo $0 then $0.015/GB/mo $4.50/M Class A ops $0.36/M Class B over | S3 Free 5GB 12mo $0 then $0.023/GB/mo $0.005/1k PUT $0.0004/1k GET over, Glacier $0.0036/GB | GCS Free 5GB then $0.020/GB/mo $0.05/10k ops over
Monitoring for Pipeline Health
Tells you when things break and why. You cannot fix what you cannot see — this is how you keep downtime short.Pricing & free-tier limitsPrometheus+Grafana OSS $0 | Grafana Cloud Free 10k series, 50GB logs, 50GB traces, 14d retention $0 then Pro $8/user/mo 15k series $8/1k series $0.50/GB logs over | Better Stack Free 10 hosts $0, Team $24/mo 50 hosts $0.30/host over | Datadog Free 5 hosts trial, Infra $15/host/mo APM $31/host/mo logs $0.10/GB $0.10/GB over 15-day
Secrets Management for Quality Connectors
A piece of your stack you may or may not need, depending on scope. Pick the option that fits — or skip it if your project doesn’t require this capability yet.Pricing & free-tier limitsVault OSS $0 + Infisical OSS $0 25 envs unlimited secrets $0 self-hosted | Infisical Cloud Free 25 secrets $0, Pro $19/user/mo 1k secrets $0.10/secret/mo over | Doppler Free 100 secrets 5 projects $0, Team $18/user/mo 500 secrets $0.05/secret over | AWS Secrets Manager $0.40/secret/mo $0.05/10k API calls over, free 30 days | HCP Vault $0.16/hr cluster ~$118/mo + $0.30/1k ops over 50k ops free
CI/CD for Quality Checks
Automates testing and deploying your code. Saves enormous time and prevents “works on my machine” releases.Pricing & free-tier limitsGitHub Actions Free 2,000 min/mo + 500MB $0, Pro $4/user/mo 3,000 min $0.008/min over Linux, $0.01/min Windows, $0.08/min macOS | GitLab CI Free 400 min/mo $0, Premium $29/user/mo 10k min $0.006/min over | CircleCI Free 6k credits/wk, Team $30/mo 30k credits $0.0006/credit over $6/1k credits overage | Buildkite $15/user/mo 10k min
API Gateway for Quality APIs
Controls and protects your APIs — quotas, abuse prevention, and firewalls. Important once you have real traffic or many clients.Pricing & free-tier limitsKong OSS $0 unlimited routes self-hosted | Konnect Free 1M req/mo $0 then Team $250/mo 10M req $15/1M req over | Cloudflare Workers Free 100k req/day $0 then Paid $5/mo + $0.50/1M req $0.30/M over | AWS API Gateway Free 1M req 12mo $0 then $3.50/M req + $0.09/GB transfer $0.02/GB over $3.50/M
Audit Logs WORM for Quality Incidents
Controls who can do what inside your admin tooling. Limits blast radius if an account is compromised.Pricing & free-tier limitsMinIO OSS $0 WORM retention self-hosted | R2 with Lock Free 10GB $0 then $0.015/GB/mo immutable $0 over features | S3 Object Lock $0 feature + $0.023/GB/mo storage $0.005/1k PUT over, Governance mode free | CloudTrail Lake Free 20k query events $0 then $2.50/GB ingested $0.50/GB over, storage $0.75/GB/mo $0.50/GB over 90d
Compute for Quality Checks (Serverless/Batch)
Where your code actually runs and serves requests. Picking the right host affects speed, scaling, and how much ops work you do.Pricing & free-tier limitsFly Free 3 shared VMs 3GB RAM $0 then $0.10/GB/mo over | Cloud Run Free 2M req/mo 360k vCPU-sec 180k GiB-sec $0 then $0.000024/vCPU-sec $0.0000025/GiB-sec $0.40/M req over | Lambda Free 1M req + 400k GB-sec/mo $0 then $0.20/M req $0.0000166667/GB-sec $0.0000125/GB-sec over 1M | Fargate $0.04048/vCPU/hr $0.004445/GB/hr $0.02/GB over
Message Queue for Quality Events
Runs slow work (emails, exports, payouts) in the background so users don’t wait. Keeps your app snappy.Pricing & free-tier limitsRabbitMQ/NATS OSS $0 self-hosted unlimited | SQS Free 1M req/mo $0 then $0.40/M req (standard) $0.50/M (FIFO) $0.40/M over | CloudAMQP Free 1M msgs/mo $0 then Bunny $19/mo 10M msgs $1.50/M over | Confluent Cloud Free $400 credits 10GB, Starter $50/mo $0.10/GB written/bundled $0.11/GB read over | Upstash Kafka Free 10k msgs/day $0 $10/mo 100k msgs over
Container Registry for Quality Images
A piece of your stack you may or may not need, depending on scope. Pick the option that fits — or skip it if your project doesn’t require this capability yet.Pricing & free-tier limitsGHCR Free 500MB storage + 1GB transfer $0 (public unlimited), Pro $4/user/mo 2GB storage 10GB transfer $0.02/GB stor $0.10/GB transfer over | Docker Hub Free 1 private repo unlimited public pulls (rate 100/6h), Pro $9/mo 5 private repos 5GB $0.05/GB over, Team $21/mo 15 repos $0.04/GB over | ECR Free 500MB 12mo $0 then $0.10/GB/mo stor $0.20/GB transfer over, private $0.01/GB over scanning
DNS Management for Quality Dashboards
Your human-readable address on the web plus the DNS records that point it at your servers. Skipping this is not an option — users need a domain to reach you.Pricing & free-tier limitsCloudflare Free $0 unlimited zones/queries/DDoS, Pro $20/mo 1 zone $0, Enterprise $200/mo | Bunny DNS $1/mo min 20 zones $0.10/zone over $0.10/M queries $0.05/M over 1M | Route 53 $0.50/zone/mo $0.40/M queries first 1B $0.20/M over, health checks $0.50/check/mo $0.30 overage 1M checks $0.35/M over
Log Management for Pipeline Logs
Tells you when things break and why. You cannot fix what you cannot see — this is how you keep downtime short.Pricing & free-tier limitsLoki OSS $0 self-hosted S3 backend $0.023/GB over | Grafana Cloud Logs Free 50GB/mo $0 then Pro $8/user/mo 100GB $0.50/GB over $0.30/GB 30-day over | Better Stack Free 3GB/mo 3-day ret $0, Team $24/mo 50GB 30d $0.40/GB over $0.30/GB 90d | Datadog Logs Free 1GB/day trial, $0.10/GB ingested $0.10/GB over, $1.70/GB 30-day retention $0.02/GB/mo over long-term
Backup for Quality Config & Rules
Copies of your data so a bug, hack, or outage doesn’t become permanent loss. Cheap insurance every serious project needs.Pricing & free-tier limitsRestic/rclone OSS $0 self-hosted | Backblaze B2 Free 10GB storage 1GB download/day $0 then $0.006/GB/mo storage $0.01/GB download $0.005/1k files over | AWS Backup Free 5GB warm backup $0 then $0.05/GB-mo warm $0.01/GB-mo cold $0.05/GB over restore $0.022/GB | Velero OSS $0
How this small scale quality and observability checklist works.
Each requirement below is something a small scale quality and observability 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.