Build. Demo. Win. $500

Join
Launch

SIMPLE PRICING

Start small.
Scale clearly.

Simple limits for prototypes, a discounted Developer tier for production workflows, and custom infrastructure when email becomes core to your agent stack.

From first inbox to production traffic.

Start with the infrastructure your agents need now, then add capacity and control without rebuilding the workflow.

Real inboxes per agent

Give every agent its own address, threads, labels, drafts, and delivery history.

AI automation that scales

Start with assisted workflows, then expand routing, RAG, and automation as volume grows.

Your domain when you ship

Prototype on a Mermail-hosted address and move to your own domain for production.

Free

$0/month

For trying Mermail with one real agent inbox.

  • 1 inbox
  • Owner only (no member invites)
  • 1,000 emails/month
  • 1 GB storage
  • 10 API RPM
  • 1,000 API credits/period
  • 1 API key
  • Basic AI model
  • Basic AI automation
  • RAG Database
  • Community support
  • Mermail hosted domain
Most Popular

Developer

$19/month
Early Adopter$1 first month

For builders shipping production agents and app workflows; one introductory month per eligible owner account.

  • 5 inboxes
  • 5 team members
  • 10,000 emails/month
  • 10 GB storage
  • 100 API RPM
  • 50,000 API credits/period
  • 5 API keys
  • Custom domains
  • Advance AI Automation
  • Premium AI models with higher quota
  • RAG Database
  • Email support
  • Higher routing priority

Enterprise

Custom

For teams with compliance, scale, or private deployment needs.

  • Custom inbox and volume limits
  • Custom storage allocation
  • Unlimited API RPM
  • Unlimited API credits/period
  • Unlimited API keys
  • Custom AI automation
  • Premium AI models with custom quota
  • RAG Database
  • Dedicated IPs and routing pools
  • Private cloud or BYO cloud
  • 24/7 direct support
  • OIDC/SAML SSO

Plan comparison

Compare every detail.

Compare the everyday limits, routing features, deliverability, security, and support you get at each tier.

No per-seat maze
Core
Inboxes
Free1
Developer5
EnterpriseCustom
Emails/month
Free1,000
Developer10,000
EnterpriseCustom
Emails/day
Free100 per mailbox
Developer100 per mailbox
EnterpriseCustom
Storage
Free1 GB
Developer10 GB
EnterpriseCustom
Threads
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Labels
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Attachments
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Drafts
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Schedule send
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
SDKs
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
MCP server
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Advanced
Inbox pods
Free1
Developer5
EnterpriseCustom
Webhook endpoints
Free2
Developer5
EnterpriseCustom
API keys
Free1
Developer5
EnterpriseUnlimited
API RPM
Free10
Developer100
EnterpriseUnlimited
API credits/period
Free1,000
Developer50,000
EnterpriseUnlimited
Websockets
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Metrics
FreeBasic
DeveloperDeveloper metrics
EnterpriseCustom reporting
SMTP relay
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
AI Automation
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
RAG Database
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
White-label
FreeNot included
DeveloperNot included
EnterpriseAvailable
EU cloud
FreeNot included
DeveloperNot included
EnterpriseAvailable
BYO cloud
FreeNot included
DeveloperNot included
EnterpriseAvailable
Deliverability
Custom domains
FreeNot included
Developer5
EnterpriseCustom
DKIM, SPF, DMARC
FreeMermail domain
DeveloperIncluded
EnterpriseIncluded
Suppression list
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Optimized shared IPs
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Dedicated IPs
FreeNot included
DeveloperNot included
EnterpriseContact us
Security
Team members
FreeOwner only
Developer5
EnterpriseCustom
Social SSO
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Multi-factor auth
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Signed webhooks
FreeNot included
DeveloperIncluded
EnterpriseIncluded
SOC 2 report
FreeNot included
DeveloperNot included
EnterpriseAvailable
OIDC/SAML SSO
FreeNot included
DeveloperNot included
EnterpriseAvailable
Support
Community
FreeIncluded
DeveloperIncluded
EnterpriseIncluded
Email
FreeNot included
DeveloperIncluded
EnterprisePriority
24/7 direct support
FreeNot included
DeveloperNot included
EnterpriseAvailable
Launch onboarding
FreeNot included
DeveloperNot included
EnterpriseAvailable
Deployment model
FreeShared cloud
DeveloperHosted cloud
EnterprisePrivate or BYO cloud

Pricing, clarified.

Pick a plan with clear expectations about billing, usage, and the path to Enterprise.

Answer

Can I upgrade or downgrade anytime?

Canceling stops renewal while paid access continues through the end of your current billing period. Your workspace moves to Free after that date.