Composio vs Letta

Comprehensive side-by-side comparison — features, pricing, performance, and more.

Data last refreshed August 2026

Composio

Sampark Inc.

Give Claude, Codex, or any harness secure access to 1500+ tools

Freemium

83% verification coverage

Letta

Machines that learn — self-improving AI agents (from the creators of MemGPT)

Open Source

78% verification coverage

Trust & Reliability

Composio

Uptime:99.99%Status page

Users:100K-1M

Customers (per vendor):AWS, Google, Zoom +7

GDPR

SOC 2

HIPAA

Letta

Uptime:99.96% (365-day)Status page

Customers (per vendor):Bilt, 11x, Kognitos +1

GDPR

Overall Winner: Composio

7.7/10 vs Letta at 5.8/10

Leads in:

Customization

Integration

Compliance & Data Protection

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

AI Comparison Summary

Composio

7.7

avg score

Letta

5.8

avg score

Composio leads overall — particularly in Ease of Use and Integration and 2 more.

Letta has an edge in Support.

Based on 6 dimensions

Scores are AI-estimated from publicly available data — not an independent test or a verified user rating. How we rank →

Overall Winner

Composio

7.7 / 10

Composio

Best For

Developers building AI agents that need to act across a wide range of apps

Enterprise teams requiring SSO, governance, and audit controls for deploying AI agents

Product and engineering teams looking to automate workflows across their tech stack with AI

AI agent builders seeking a managed MCP endpoint for tool access and authentication

Letta

Best For

Developers building AI agents for automated workloads

Teams creating custom agents with shared resources and permissions

Individuals using stateful agents for personal use

Enterprises requiring high-volume agent deployments with custom pricing

* Verdict is based on our algorithmic scoring of publicly available data. Learn about our methodology

Composio is best for

📊Data & Analytics6.0🤖Automation & Agents5.4🎧Customer Support5.0

Letta is best for

✍️Writing & Content8.0💬Chat & Conversation8.0🤖Automation & Agents7.1

Filter by your use case:

Limitations

Composio

Cons

Premium tools incur additional charges on top of base rates
Zero data retention (ZDR) is an add-on feature for Pro and Enterprise plans
Advanced white-labeling is an add-on feature with a per-connection charge
Log retention is limited to 7 days on the Free plan and 30 days on Pro

Letta

Cons

Free plan is limited to 3 stateful agents
Personal Plans require OAuth authentication
Developer Plans use API key authentication
Tool execution on the API Plan is usage-based
Letta Auto usage is quota-limited on Pro plans
Data collection for hosted services may be used for model training

Weighted Score — Adjust What Matters to You

Pick a profile or drag sliders — scores and radar update instantly on the right.

Quick profiles:

Ease of Use5

Customization5

Support5

Integration5

Compliance & Data Protection5

Performance5

Planning Quality5

Dimension Comparison

Composio

7.7

/ 10

Clear winner

Letta

5.8

/ 10

Dimension Breakdown

Ease of Use

How intuitive is onboarding, UI navigation, and day-to-day usage for the target audience?

Composio

3.0▲ +2.0

Letta

1.0

Customization

Calculated

How much can users tailor workflows, settings, prompts, or outputs to their needs?

Composio

10.0▲ +1.0

Letta

9.0

Support

How strong is the documentation, customer support, community, and learning resources?

Composio

7.0

Letta

10.0▲ +3.0

Integration

Calculated

How well does it connect with other tools, APIs, and workflows?

Composio

10.0▲ +3.0

Letta

7.0

Compliance & Data Protection

Calculated

Compliance certifications and data-protection posture, counted from ten verified signals: SOC 2 Type II, GDPR compliance, HIPAA, WCAG AA/AAA, PII redaction, licensed-only training, a published sub-processor list, a downloadable DPA, not training on user data, and a documented deletion path

Composio

8.0▲ +5.0

Letta

3.0

Performance

Calculated

Latency + throughput speed

Composio

8.0▲ +3.0

Letta

5.0

Planning Quality

Calculated

Multi-step planning depth + replanning capability

Composio

—

Letta

—

Calculated = derived from structured signals (integration count, API/open-source config, compliance certs, response-time). AI = LLM-assessed from public website content. Methodology

Task Performance

Composio

Task

Letta

3.0

Role Definition

8.0

6.0

Task Decomposition

8.0

4.0

Agent Coordination

7.0

3.0

Inter Agent Communication

6.0

Workflow Orchestration

7.0

9.0

Tool Use Delegation

7.0

6.0

State Management

9.0

5.0

Error Recovery

5.0

7.0

Observability

5.0

7.0

Scalability Throughput

8.0

4.0

Task Delegation

8.0

7.0

Parallel Execution

7.0

* Task scores (1–10) are algorithmically generated from publicly available data.

Data is sourced from public information and vendor websites. It may not always be up-to-date — verify pricing and features directly with the vendor before purchasing.Report inaccuracy

Frequently Asked Questions

What are the main differences between Composio and Letta?

Composio — "Give Claude, Codex, or any harness secure access to 1500+ tools". Letta — "Machines that learn — self-improving AI agents (from the creators of MemGPT)". The Features section on this page compares them side by side.

Who is Composio best for compared with Letta?

Composio is best for Developers building AI agents that need to act across a wide range of apps; and for Enterprise teams requiring SSO, governance, and audit controls for deploying AI agents. Letta is best for Developers building AI agents for automated workloads; and for Teams creating custom agents with shared resources and permissions.

How does the pricing of Composio compare with Letta?

Composio is freemium, includes a free plan, paid plans start at $29/month. Letta is open source, includes a free plan, paid plans start at $20/month. Always verify current pricing with the vendor.

Does Composio or Letta have a free plan?

Composio has a free plan. Letta is open source. Always verify current pricing with the vendor.

Do Composio and Letta offer an API?

Composio offers a public API. Letta offers a public API.

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