vs Composio

1,000 generic tools.
Or 195 built for email.

Composio is a hosted agent-tool platform spanning Gmail, Slack, GitHub, Linear and 1,000+ apps. CME is purpose-built for email — sweep across 500K messages, sender / newsletter / duplicate detection, bulk unsubscribe, follow-ups. Choose Composio for breadth; choose CME when email IS the workflow.

ConnectMyEmail

Email-native depth.

195 email-specific MCP tools across 8+ providers, plus a sweep engine that scans 500K messages in under 45 seconds.

Composio

Cross-app breadth.

1,000+ toolkits, hosted MCP, managed OAuth, sandboxed execution. Gmail and Outlook (via Graph) are two among many.

Decision matrix

Which one is right for you?

Choose CME if…

›Email is the primary surface and you need depth, not breadth.
›You use Outlook, iCloud, Yahoo, Fastmail, Proton, AOL, Zoho or raw IMAP.
›You want flat per-seat pricing instead of per-call metering.

Choose Composio if…

›Your agent needs Gmail plus Slack, GitHub, Linear, Notion, etc. through one auth.
›You want managed OAuth across many SaaS apps and a sandboxed runtime.
›You need Enterprise VPC/on-prem deployment plus SOC 2 + ISO 27001.

Choose both if…

›Multi-agent stack: Composio for cross-app actions, CME as the dedicated email MCP.
›Building a vertical email assistant on top of Composio's auth layer.

Feature-by-feature

19 rows. Every cell sourced.

Connection model

How tools reach your inbox.

FeatureCMEComposioNote

Hosted MCP serveryes (stateless)yes (multi-tenant)

Self-host / VPC—yes (Enterprise)

AuthOAuth per providerManaged OAuth + custom apps

Hosted MCP server

CME

yes (stateless)

Composio

yes (multi-tenant)

Self-host / VPC

CME

—

Composio

yes (Enterprise)

Auth

CME

OAuth per provider

Composio

Managed OAuth + custom apps

Tool surface

What's actually exposed.

FeatureCMEComposioNote

Total tools195 (email-specific)1,000+ toolkits

Gmail-specific toolsdeep (sweep, detection, unsubscribe)62 + 2 triggers

Outlook / Microsoft 365nativevia Microsoft Graph

iCloud / Yahoo / Fastmail / Proton / AOL / Zoho / IMAP—Composio focuses on Gmail + Graph; multi-provider IMAP not first-class.

Sweep at scale (500K messages)—

Bulk unsubscribe / newsletter detection—

Follow-up tracking—

Total tools

CME

195 (email-specific)

Composio

1,000+ toolkits

Gmail-specific tools

CME

deep (sweep, detection, unsubscribe)

Composio

62 + 2 triggers

Outlook / Microsoft 365

CME

native

Composio

via Microsoft Graph

iCloud / Yahoo / Fastmail / Proton / AOL / Zoho / IMAP

CME

Composio

—

Composio focuses on Gmail + Graph; multi-provider IMAP not first-class.

Sweep at scale (500K messages)

CME

Composio

—

Bulk unsubscribe / newsletter detection

CME

Composio

—

Follow-up tracking

CME

Composio

—

Privacy & storage

What gets stored.

FeatureCMEComposioNote

Stores email bodies—tokens + tool-call payloads

Data retentionn/a (stateless)30 calendar days max

SOC 2 Type IIin progress

ISO 27001—

Stores email bodies

CME

—

Composio

tokens + tool-call payloads

Data retention

CME

n/a (stateless)

Composio

30 calendar days max

SOC 2 Type II

CME

in progress

Composio

ISO 27001

CME

—

Composio

Pricing

Flat per-seat vs per-call metering.

FeatureCMEComposioNote

Free tier$0$0 (20K calls)

Entry paid$9/mo$29/mo (200K calls)

Mid tier$25/mo$229/mo (2M calls)

Overage—$0.249–$0.299 per 1K calls

Pricing modelflat per seatmetered per tool call

Free tier

CME

Composio

$0 (20K calls)

Entry paid

CME

$9/mo

Composio

$29/mo (200K calls)

Mid tier

CME

$25/mo

Composio

$229/mo (2M calls)

Overage

CME

—

Composio

$0.249–$0.299 per 1K calls

Pricing model

CME

flat per seat

Composio

metered per tool call

Pricing

Side by side.

Composio meters per tool call; CME is flat per seat. For email-heavy agents, the call meter compounds — for cross-app agents, Composio's catalog earns its keep.

ConnectMyEmail

Free1 inbox, 5K cleanup actions/mo
$0
Pro3 inboxes, 25K cleanup actions/mo
$9/mo
Power10 inboxes, 100K cleanup actions/mo
$25/mo

Composio

Free20K tool calls, community support
$0
Ridiculously Cheap200K calls, $0.299/1K overage
$29/mo
Serious Business2M calls, $0.249/1K overage
$229/mo

If your agent makes 50K email tool calls a month, Composio's $29 Cheap tier is $20 cheaper than CME Pro on paper — but you're paying for 950+ apps you may never call.

Stack them

Many teams run both: Composio as the cross-app tool registry, CME as the dedicated email MCP.

Editorial

Want the full editorial take on this comparison?

Read the deep-dive →