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Pricing

Simple plans. Honest overage.

Every plan includes the full API, MCP server, and CLI. Receiving email is always free.

account.limits

receiving
free
api · mcp · cli
every plan
overage
from $1 / 1k sends
billing
monthly or yearly
  • Free

    Prototype an agent with a real inbox.

    $0

    Free forever

    Join the waitlist
    inboxes
    3
    sends/mo
    3,000
    domains
    0
    support
    community
    • REST API, MCP, CLI
    • Threads, labels, drafts
    • Webhooks and live events
  • plan.buildermost popular

    Builder

    Ship agents on your own domain.

    $19/mo

    Billed monthly

    $1 for your first week, then $19/month

    Join the waitlist
    inboxes
    15
    sends/mo
    20,000
    domains
    3
    support
    email
    • Everything in Free
    • Custom domains
    • No BotInbox footer
    • Usage-based overage
  • Team

    Run and govern fleets of agents.

    $99/mo

    Billed monthly

    $1 for your first week, then $99/month

    Join the waitlist
    inboxes
    150
    sends/mo
    200,000
    domains
    50
    support
    priority email
    • Everything in Builder
    • Policies and human approvals (coming Q1 2027)
    • Members and roles: 3 user licenses included, then $15/user/mo
    • Multi-provider failover
    • Priority support
  • Enterprise

    Dedicated infrastructure and controls.

    Custom

    Volume pricing and contracts

    Contact us
    inboxes
    Unlimited
    sends/mo
    custom
    domains
    Unlimited
    support
    dedicated + sla
    • Everything in Team
    • Bring your own provider
    • Dedicated IPs
    • SSO and audit exports

Cancel anytime in the first 7 days and you won't be charged the monthly price.

Compare plans

Every limit, side by side.

Plan limits and features compared
PlanFreeBuilderTeamEnterprise
Price
Monthly$0/mo$19/mo$99/moCustom
Yearly$0/yr$182/yr$950/yrCustom
OverageSends above the monthly allowanceSending pauses at the limit$1 per 1,000 sends$0.80 per 1,000 sendsCustom
Extra inboxNot included$1/mo$0.50/moIncluded
Usage
Inboxes315150Unlimited
PodsGroups of inboxes for multi-tenant apps325250Unlimited
Sends per day1001,00010,000Custom
Sends per month (included)3,00020,000200,000Custom
Custom domains0350Unlimited
Storage1 GB10 GB100 GBCustom
Retention30 days1 year3 yearsCustom
API requests per minute606003,00010,000
Webhooks220200Unlimited
Platform
REST API, MCP, CLIIncludedIncludedIncludedIncluded
Threads, labels, draftsIncludedIncludedIncludedIncluded
Signed webhooks and live events (SSE)IncludedIncludedIncludedIncluded
No “Sent with BotInbox” footerNot includedIncludedIncludedIncluded
Multi-provider failoverNot includedNot includedIncludedIncluded
SupportCommunityEmailPriority emailDedicated + SLA

Prices in USD, excluding taxes. Limits apply per account.

How overage works

No surprise shutdowns in production.

Paid plans keep sending past the monthly allowance. You pay only for the extra sends, billed at the end of the period.

  • Free plan: sending pauses at the limit, and receiving keeps working.
  • Builder and Team: overage is metered per 1,000 sends.
  • Daily limits still apply to protect deliverability for everyone.

example · plan.builder

sends this month
25,000
included
20,000
overage
5,000 × $1/1,000

total$19 + $5.00

Enterprise

Need dedicated infrastructure?

Custom limits, bring-your-own provider, dedicated IPs, SSO, audit exports, and an SLA.

FAQ

Pricing questions

What counts as a send?

Each outbound message counts as one send. Receiving email is free and doesn't count against your sends.

What happens when I reach my monthly sends?

On Free, sending pauses until the next month (receiving keeps working). On Builder and Team, sending continues and extra sends are billed as overage at $1 and $0.80 per 1,000 respectively.

Are daily limits separate from monthly limits?

Yes. Daily limits (100 on Free, 1,000 on Builder, 10,000 on Team) protect deliverability and are measured over a rolling 24 hours. New accounts may start with lower limits while they build a sending history.

Can I change plans at any time?

Yes. Upgrades apply immediately, and if you downgrade your inboxes and messages are kept.

Is there a discount for paying yearly?

Yes. Yearly billing costs $182 for Builder and $950 for Team, 20% off monthly pricing.

Do you offer Enterprise contracts?

Yes. Enterprise includes custom limits, bring-your-own mail provider, dedicated IPs, SSO, audit exports, and an SLA. Email hello@botinbox.dev.

Get started

Give your agent an inbox.

Every plan includes the full API, MCP server, and CLI. Receiving email is always free.