Pricing

The engine is free.
The operating is what you buy.

BanditDB is Apache-2.0 and always will be. Start on a free managed instance, run it yourself for nothing, or hand us the pager and keep shipping.

No card

Free

Enough to put a real decision into production and watch it learn.

$0

a shared managed instance, or self-host with no limits at all

Managed shared instance — 50k decisions / month
Or self-host the Apache-2.0 engine, uncapped
Every algorithm — LinUCB, Thompson Sampling, NeuralLinUCB, Progressive
REST API, Python and TypeScript SDKs
Setup agent over MCP — models your decision and creates the campaign
Parquet export and offline policy evaluation
Community support on GitHub

Start free

Founding customers

BanditDB Cloud

Your own instance and volume, operated for you. Pick the size that fits your traffic.

$290 / month

5M decisions / month

Everything in Free
Dedicated instance — never shared
Dedicated persistent volume
Monitoring, backups, and version upgrades
Checkpoint + WAL recovery, managed
API access and security setup
Email support, priority queue

Enterprise

Custom

For decisions that have to run inside your own network.

Custom

scoped to your deployment and your terms

Everything in Cloud
Deployed in your VPC or on-premises
Region and data-residency requirements
Response-time commitments in writing
Security review and procurement support
Named engineer and onboarding for your team
Annual invoicing

Talk to us

Annual billing costs ten months. Founding customers keep their rate for twelve. Exceeding a cap never drops a decision — we tell you, and you move up a size when you are ready.

Same engine. Different pager.

The only thing a plan changes is who gets woken up. Read the column, not the row.

Operational duty	Self-hosted	Cloud	Custom
Provision and deploy	you run it	we run it	we run it
Persistent storage	you run it	we run it	we run it
Version upgrades	you run it	we run it	we run it
Backups and restore drills	you run it	we run it	we run it
Monitoring and alerting	you run it	we run it	we run it
Incident response	you run it	we run it	we run it, in your cloud
Capacity and scaling	you run it	we run it	we run it, in your cloud
Your campaigns and rewards	you run it	you run it	you run it

The last row never moves. Your campaigns, contexts and rewards are yours on either plan — export them to Parquet whenever you like.

Questions people
actually ask

What counts as a decision? +

One predict call. Rewards, campaign management and reads are not metered — you are billed for decisions the engine makes, not for talking to it.

What happens when I hit the cap? +

Nothing breaks. Decisions keep being served and we tell you where you are. Move up a size when the number stops being an accident.

Is the open-source build limited in any way? +

No. The engine is Apache-2.0 in full — every algorithm, the recovery path, the export tooling. Paying removes operational work, it does not unlock features.

What makes an instance "dedicated"? +

Your deployment runs alone, on its own persistent volume. Campaigns, contexts and rewards never share a process or a disk with another customer. The free tier runs on a shared instance.

Can I start on Cloud and move to self-hosted later? +

Yes, and the reverse. It is the same binary and the same state format — export to Parquet, or take the volume with you.

Do I need to talk to anyone to get started? +

No. The setup agent connects over MCP, works out your arms, context and reward signal with you, and creates the campaign. It is free on every plan, including self-hosted.

When do I need Custom instead of Cloud? +

When the deployment has to live inside your own network, when data residency is written into a contract, or when procurement needs a security review and response-time commitments on paper.

Not sure it fits your decision?

Bring the decision you make over and over — the actions, the context, the outcome you can measure. We will tell you honestly whether a bandit beats the rules you have.

Talk through a use case Read the quickstart

The engine is free.The operating is what you buy.

Free

BanditDB Cloud

Custom

Same engine. Different pager.

Questions people actually ask

Not sure it fits your decision?

The engine is free.
The operating is what you buy.

Questions people
actually ask