SiriDB
SiriDB is an open-source time-series database for analysing and aggregating data such as IoT readings and financial transactions.
What SiriDB is
SiriDB is an open-source time-series database for analysing and aggregating data such as IoT readings and financial transactions. Its storage algorithm avoids bulky indexes, while the custom query language supports dynamic time-series grouping and distributed queries across pools. Pools can be added while the database runs, with data divided across available pools. The maker says maintenance and cluster updates can occur online; replicas provide redundancy and load balancing. SiriDB HTTP supplies an API for requests, inserts and queries, supporting JSON, Qpack and basic authentication, with SSL described for the connector. Deployment options include Debian packages, compiling on Linux or OSX, Docker and Kubernetes. Integrations include Grafana and connectors for C/C++, Python, Go and Node.js; documentation also covers Java, PHP and R. The multi-node version uses the MIT licence. SiriDB is free, supports retention policies and horizontal scaling, and offers community support through Slack and GitHub. SQL is not supported.
Good
- Open-source under the MIT licence
- Supports horizontal scaling
- Allows online pool additions and maintenance
- Provides multiple language connectors
- Includes retention policies
Watch out
- SQL is not supported
- Basic HTTP authentication is documented
- Commercial support plans require 12-month contracts
Who it suits
It suits developers and operators managing distributed time-series workloads on Linux or macOS. It is useful when retention policies, horizontal scaling and several programming-language connectors matter.
Verdict
SiriDB offers a free, extensible time-series database with clustering, retention and broad connector support. Teams needing SQL should look elsewhere, while others can choose self-hosting or hosted support options.
Plans and prices
From SiriDB's own pricing page, checked 8 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Basic support | €150 a month | 8/5 support coverage CET · Best effort response via Slack · Remote monitoring · 1 remote health check/year · 1 pool · Minimum support contract length: 12 months |
| Standard support | €400 a month | 8/5 support coverage CET · Maximum 8-hour response via Slack · Remote monitoring · 2 remote health checks/year · 6 pools · Minimum support contract length: 12 months |
| Premium support | €800 a month | 24/7 coverage with on-call engineer · Maximum 4-hour response · Remote monitoring · 4 remote health checks/year · 10 pools · Minimum support contract length: 12 months |
The facts
Each one read from SiriDB's own pages, with the date it was checked.
What it does
- Additional language connectors
- The documentation also provides connection pages for Java, PHP, and R.checked 8 Oct 2026
- Availability
- The maker says cluster updates and maintenance can happen while the database remains online, and replicas provide redundancy and load balancing.checked 8 Oct 2026
- Deployment
- The server can be installed from a Debian package, compiled on Linux or OSX, or run with Docker.checked 8 Oct 2026
- Hosting
- Cesbit offers SiriDB cluster hosting on Google Cloud and says SiriDB can be deployed in Kubernetes; hosting is combined with a support offering.checked 8 Oct 2026
- Integrations
- The maker lists a Grafana data source plugin and native connectors for C/C++, Python, Go, and Node.js.checked 8 Oct 2026
- Interfaces
- SiriDB HTTP provides an API for service requests, inserts, and queries, with JSON and Qpack support and basic authentication.checked 8 Oct 2026
- License
- The multi-node clustering version is available as open source under the MIT license.checked 8 Oct 2026
- Product
- SiriDB is an open-source time-series database for analyzing and aggregating time-series data from sources including IoT and financial transactions.checked 8 Oct 2026
- Querying
- Its custom query language supports dynamic grouping of time series and distributed queries across pools.checked 8 Oct 2026
- Scaling
- Pools can be added while SiriDB is running, and data is divided evenly across available pools.checked 8 Oct 2026
- Security
- The HTTP API documentation describes basic authentication, while the SiriDB HTTP connector page says it supports SSL.checked 8 Oct 2026
- Storage design
- SiriDB uses an algorithm that stores time-series data without bulky indexes.checked 8 Oct 2026
- Support
- Community support is available through Slack and GitHub, and commercial support packages include remote monitoring and health checks.checked 8 Oct 2026
The company
- Maker
- Cesbit describes itself as a Dutch software startup and identifies SiriDB as one of its products.checked 8 Oct 2026
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