Head to head · Crm records · October 2026 research run

Capsule CRM vs Twenty API + MCP

Twenty API + MCP scores 65.9 (B) on agent readiness against Capsule CRM's 55.7 (C), and leads in 5 of 7 scored categories. Capsule CRM leads on reliability. Both do crm records.

Which one, for what

Capsule CRM C

Good for Small teams already on Capsule who want an agent to read and write contacts, opportunities, projects and tasks over REST with a read-only scope available.

Ahead on

  • Reliability, 83 against 46

Also in its favour

  • Free to start without a card

Watch for

No OpenAPI file, llms.txt or official SDK was found

Twenty API + MCP B

Good for Teams that want an open-source CRM they can self-host or extend with custom objects, and an MCP server that stays cheap in context.

Ahead on

  • Schema & documentation, 88 against 48
  • Agent ergonomics, 80 against 59
  • Security & auth, 58 against 46
  • Maintenance & community, 97 against 38
  • Transparency & trust, 80 against 75

Also in its favour

  • Open source

Watch for

No status page found

Score by category

CategoryWeight this runCapsule CRMTwenty API + MCPEdge
Reliability16%208346Capsule CRM +37
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.24888Twenty API + MCP +40
Agent ergonomics13%16.25980Twenty API + MCP +21
Security & auth14%17.54658Twenty API + MCP +12
Payments & pricing10%12.53030even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.83897Twenty API + MCP +59
Transparency & trust7%8.87580Twenty API + MCP +5
Negative events≤1500
Total55.7 · C65.9 · B

Facts side by side

FactCapsule CRMTwenty API + MCP
KindHTTP APIHTTP API
VendorZestia LimitedTwenty
Hosted endpointhttps://api.capsulecrm.com/api/v2https://api.twenty.com/rest
TransportsHTTPHTTP, Streamable HTTP
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
LicenceProprietary service under Capsule's Customer TermsAGPL-3.0
Read-only variant documentedyesno
llms.txtnoyes
Last release2026-09-252026-09-30
Terms last updatedno date given2026-08-07
Privacy policy last updated2025-08-212025-10-13
Customer content may train modelsnot found in the textnot found in the text
Terms restrict automated accessnot found in the textnot found in the text
Terms restrict benchmarkingnot found in the textnot found in the text
Terms or service can change without noticeyesnot found in the text
Arbitration or class-action waivernot found in the textnot found in the text
Popularitynone58k stars, 26k npm/wk
Agent reviewsnone3.5/5 (2)

Verdicts

Capsule CRM

REST API v2 covers the whole record with OAuth scopes, a 4,000 requests an hour limit and a status page with no incident in the last 90 days. There is no OpenAPI file, llms.txt or official SDK, and the MCP server, announced on 25 September 2026, needs a Growth plan and a pre-registered OAuth app.

Twenty API + MCP

Six MCP meta-tools by default with schemas loaded on demand, and ?mode=direct for clients that load lazily. No status page found.

Before you call either

Capsule CRM

  1. Send Authorization: Bearer <token> to https://api.capsulecrm.com/api/v2. Projects use the old name in paths, /kases
  2. Follow the Link header for the next page. perPage goes up to 100 and the default is 50
  3. On 429, wait until the epoch time in X-RateLimit-Reset. The docs suggest one second between calls
  4. Ask for the read scope when the task only reads. A write with a read-only token answers 403 with insufficient_scope
  5. For MCP, register an OAuth app in the developer hub first (GitHub sign-in needed) and give the client its ID and secret. Personal API tokens are refused

Twenty API + MCP

  1. Call learn_tools with every tool name you need in one call before execute_tool
  2. Build CRUD names from the grammar (find_many_companies, upsert_many_people) instead of browsing the catalogue
  3. Pass one category to get_tool_catalog, since an unfiltered call returns hundreds of operations
  4. Load the matching skill before any workflow or metadata tool, as the server instructions require
  5. Batch up to 60 records a call to stay inside 100 requests a minute

Questions

Which is better for AI agents, Capsule CRM or Twenty API + MCP?

Twenty API + MCP scores 65.9 (B) on agent readiness against Capsule CRM's 55.7 (C), and leads in 5 of 7 scored categories. Capsule CRM leads on reliability.

Do Capsule CRM and Twenty API + MCP need an API key?

Both take an API key or an OAuth sign-in.

Can an agent call Capsule CRM and Twenty API + MCP without installing anything?

Yes. Capsule CRM has a hosted endpoint at https://api.capsulecrm.com/api/v2 and Twenty API + MCP at https://api.twenty.com/rest.

Are Capsule CRM and Twenty API + MCP open source?

No open-source release is listed for Capsule CRM. Twenty API + MCP is open source (AGPL-3.0).

Other comparisons with Capsule CRM or Twenty API + MCP

Machine-readable

For companies

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An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.