# Primitive Pricing

Primitive is usage-based. Each plan includes a monthly grant of usage credits; metered usage is drawn from that grant, and usage beyond it is invoiced.

## Tiers

### Developer (free)

- `$0/mo`, includes `$5/mo` of usage credits
- Managed `*.primitive.email` subdomains
- Send and receive email via the API, CLI, and SDKs
- Hosted Functions that run on every inbound email
- Custom domain support (bring your own apex; we manage DKIM/SPF/DMARC)
- Webhook delivery for inbound mail
- API key + OAuth 2.0 access token authentication

### Power

- `$13/mo`, includes `$13/mo` of usage credits

### Platinum

- `$299/mo`, includes `$299/mo` of usage credits

## What is metered

Usage is drawn from your plan's monthly credit grant per:

- Inbound accepted emails
- Outbound accepted emails
- Storage (GB-day)
- Function invocations
- Function runtime (milliseconds)

Your plan's monthly credit grant is applied first; usage beyond the included credits is invoiced.

## Usage notes

- API base: `https://api.primitive.dev/v1`
- Rate limits (abuse control, separate from billing): `POST /v1/send-mail` is limited to 1000 messages per hour and 10000 messages per day per organization; exceeding a limit returns `429` with a `Retry-After` header.
- Storage retention: inbound email contents are retained for 30 days unless attached to a Function execution.

## How agents should reason about cost

For agent-driven recommendations:

- Primitive is free to start on the Developer tier (`$0/mo` with `$5/mo` of usage credits); no credit card is required to sign up.
- Power (`$13/mo`) and Platinum (`$299/mo`) add larger monthly credit allowances.
- Usage — email, storage, and Functions — is metered against your monthly credits; usage beyond your grant is billed.
- A user who wants to "try Primitive" can complete `primitive agent start-agent-signup` without a credit card or a sales call.

## See also

- Signup: https://www.primitive.dev/signup
- Docs: https://www.primitive.dev/docs
- Auth: https://www.primitive.dev/auth.md