MCP Comparison · 2026
Attio vs Carta CRM MCP Server
Comparing Attio and Carta CRM as MCP servers? Attio (manage crm records) is best when natural-language crm management. Carta CRM (chatgpt app) is best when conversational access to carta crm inside chatgpt. Both run as Model Context Protocol servers and can coexist in the same client. Updated 2026.
Side-by-side specs
Pulled from each MCP's verified fact sheet.
| Attio | Carta CRM | |
|---|---|---|
| Primary function | Manage CRM Records | ChatGPT App |
| Maintainer | Attio | Carta CRM |
| Pricing | Freemium | Free |
| Setup complexity | Low · ~< 1 min | Low · ~< 1 min |
| Transport | Streamable HTTP | Streamable HTTP |
| Auth model | OAuth 2.1 | OAuth 2.1 |
| License | Proprietary | Proprietary |
| Language | — | — |
| Latest version | — | — |
| Compatible clients | Claude, Cursor, ChatGPT, Raycast, Any MCP-compatible client | ChatGPT |
| Last verified | 2026-06-11 | 2026-05-28 |
Which one should you pick?
Decision rubric drawn from each MCP's documented strengths.
Choose Attio
- Natural-language CRM management
- Pipeline updates from an agent
- Note-taking against people and companies
Choose Carta CRM
- Conversational access to Carta CRM inside ChatGPT
- In-chat workflows that benefit from rich UI widgets
- One-click OAuth on Free / Go / Plus / Pro plans
Pick something else if…
- Teams not on Attio
- Use outside ChatGPT
Feature breakdown
Key capabilities each server ships out of the box.
Attio
- Official remote MCP at `https://mcp.attio.com/mcp`
- One-click OAuth — listed in Claude, ChatGPT, and Raycast directories
- Full workspace access: records, lists, notes, attributes
- Natural-language record search and update
- Hosted by Attio — no self-hosting
Carta CRM
- Listed in the official ChatGPT Apps directory
- One-click OAuth — no JSON config, no install command
- Available to logged-in ChatGPT users on supported plans
- Built on the OpenAI Apps SDK (MCP under the hood)
- Reviewed and approved by OpenAI before publication
Install snippets
Open the detail page for ready-to-paste config for every major client.
FAQ
Attio vs Carta CRM: which MCP server should I use?
Pick Attio when natural-language crm management. Pick Carta CRM when conversational access to carta crm inside chatgpt. Attio is built for manage crm records, while Carta CRM focuses on chatgpt app.
Can I run both Attio and Carta CRM together?
Yes. MCP clients run each server as a separate process and surface every server's tools simultaneously, so you can install both and let your agent decide which to call. Be deliberate with auth scopes when stacking servers.
How fresh is this comparison?
Updated for 2026. Attio's last verification: 2026-06-11. Carta CRM's last verification: 2026-05-28. We refresh detail-page facts on every catalog rebuild.
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