Skip to content

Pricing that names the limits.

Four paid plans. Monthly is the default. Annual billing shows the total commitment first, then its calculated monthly equivalent.

Pricing hypothesis: USD per workspace; self-service plans cover one human owner.

Monthly is the default.
Plus

For organized personal mail

$9/month
  • 15 active inboxes
  • 100 active addresses
  • 5 GiB pooled storage
  • 50,000 Agent API/MCP operations/month · 60/minute
  • 1,000 outbound recipients/month · 100/UTC day
INCLUDED CONTROLSScoped grants · Revocation · Audit · Human-approved sending
PLANNED / BOUNDARYBYOD connection unavailable
Pro

For larger personal workflows

$19/month
  • 50 active inboxes
  • 500 active addresses
  • 25 GiB pooled storage
  • 250,000 Agent API/MCP operations/month · 180/minute
  • 5,000 outbound recipients/month · 500/UTC day
INCLUDED CONTROLSScoped grants · Revocation · Audit · Human-approved sending
PLANNED / BOUNDARY1 BYOD connection · planned
Agentic

For agent-heavy workflows

For agent-heavy workflows
$49/month
  • 200 active inboxes
  • 2,000 active addresses
  • 50 GiB pooled storage
  • 1,000,000 Agent API/MCP operations/month · 600/minute
  • 20,000 outbound recipients/month · 1,000/UTC day
INCLUDED CONTROLSScoped grants · Revocation · Audit · Human-approved sending
PLANNED / BOUNDARY3 BYOD connections · planned · Autonomous sending · planned, explicit opt-in
Enterprise

For negotiated capacity

Custom
  • Capacity negotiated
  • Commercial terms negotiated
  • Explicit opt-in sending policy
INCLUDED CONTROLSScoped grants · Revocation · Audit · Human-approved sending
PLANNED / BOUNDARYCustom capacity
Students: $36/year on PlusAnnual pricing; verified school email and re-verification at renewal.
Connect an already-owned domainBYOD connection remains planned. OtterMail does not buy, sell, resell, register, or provision domains.
Planned capability

Compare capacity and boundaries.

The table follows the canonical catalog. Enterprise capacity and commercial terms require a quote.

OtterMail plan comparison
AllowancePlusProAgenticEnterprise
Monthly$9/month$19/month$49/monthCustom
Annual commitment$90/year$190/year$490/yearCustom
Annual monthly equivalent$7.50/month equivalent$15.83/month equivalent$40.83/month equivalentNot displayed
Active inboxes, including Personal/root1550200Negotiated
Active addresses1005002,000Negotiated
Pooled storage5 GiB25 GiB50 GiBNegotiated
Agent API/MCP operations per month50,000250,0001,000,000Negotiated
Agent API/MCP operations per minute60180600Negotiated
Outbound envelope recipients per month1,0005,00020,000Negotiated
Outbound envelope recipients per UTC day1005001,000Negotiated
Already-owned domain connections0 · planned1 · planned3 · plannedNegotiated
Sending eligibilityHuman-approvedHuman-approvedExplicit opt-in · plannedNegotiated, explicit opt-in
LLM inferenceNot includedNot includedNot includedNot included

Counting rules in plain language.

Minute limits use a rolling 60-second window. No overage invoices or add-on SKUs are activated here.

Active inboxes
Personal counts; collections and All Mail do not.
Retained bytes
Archives continue counting toward storage.
API operations
REST and MCP share one monthly allowance.
Envelope recipients
Unique normalized To, CC, and BCC recipients count.

Prototype boundary. Quota enforcement, checkout, exports, and domain connection are not activated by this pricing surface.

Pricing questions.

Straight answers on trial state, capacity, sending, domains, and the product boundary.

An agent receives the inboxes named in its grant, with the actions you select: read, search, organize, or draft. Send permission is separate, and the demonstrated send path stays behind human approval.

OtterMail

Give your agent one inbox to start.

Explore the offline demo: scope access, scan purpose inboxes, follow a conversation, and archive the work.