TiDB Cloud Starter
PingCAP's TiDB Cloud Starter is a MySQL-compatible distributed SQL database with both row and columnar storage and a large always-free monthly allowance.
- Card required
- No
TiDB Cloud Starter scores 5.7/10 for free value in DB. The main constraint: 25 GiB row storage + 25 GiB column storage + 250M Request Units free per month per organization; pay-as-you-go beyond that ($0.20/GiB, $0.10/1M RUs).
Free value score
5.7 / 10Show the math
Key metrics
What you get
25 GiB row + 25 GiB column storage free monthly
250M Request Units free per month
MySQL-compatible, auto-scaling, scale-to-zero
Row + columnar storage for HTAP/analytics
Gotchas
- 250M Request Units/month free
Each organization gets 250 million Request Units free per calendar month; resets monthly with pay-as-you-go billing beyond that at $0.10/1M RUs.
- 25 GiB row storage free/month
Up to 25 GiB of row (TiKV) storage is included free per organization per month; additional storage billed at $0.20/GiB.
- 25 GiB column storage free/month
Up to 25 GiB of columnar (TiFlash) storage is included free per organization per month, shared with the row-storage billing model.
- Free quota per organization, not per DB
The 25 GiB + 25 GiB + 250M RU allowance is shared across all Starter clusters in the organization, so multiple projects compete for the same pool.
- Scales to zero when idle
TiDB Cloud Starter scales down to zero compute when idle, causing cold-start latency on first request after inactivity.
- No point-in-time backup / HA
Starter tier lacks point-in-time backup, 30-day retention, and multi-zone 99.99% availability — those features require EssentialPreview or higher.
- AWS and Alibaba Cloud only
Starter clusters are available on AWS and Alibaba Cloud only; GCP and Azure are not supported on this tier.
- Vector/AI features share RU budget
Vector search and AI features consume the same 250M RU monthly quota, reducing the effective allowance for mixed workloads.
- Shared serverless resources
Starter runs on shared, autoscaling serverless infrastructure — throughput is not guaranteed and may be lower than dedicated tiers under concurrent load.
Sources
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"25 GiB of row storage, 25 GiB of column storage, and 250M Request Units (RUs) for free per month for each organization"
https://www.pingcap.com/pricing/ -
"For the first five TiDB Cloud Starter instances in your organization, TiDB Cloud provides a free usage quota for each of them as follows: Row-based storage: 5 GiB; Columnar storage: 5 GiB; Request Units (RUs): 50 million RUs per month"
https://docs.pingcap.com/tidbcloud/serverless-limitations/ -
"For a TiDB Cloud Starter instance, you can have up to 400 concurrent connections. If you set a spending limit, this limit increases to 5,000."
https://docs.pingcap.com/tidbcloud/serverless-limitations/ -
"No cost: This plan is free when usage is within the free quota. No credit card is required to get started."
https://docs.pingcap.com/tidbcloud/select-cluster-tier