Close vs Twenty for AI agents

As of 11 Oct 2026, Twenty gets an AI agent further: L4 · Runs on its own against L1 · Needs a person.

CloseL1Needs a person
  • Find: Docs for agents: llms.txt, an OpenAPI and an MCP server.
  • Access: Can't sign up.
  • Use: Work not reached.
  • Pay: Payment not reached.
  • Leave: Leaving not reached.

Stopped at sign up: blocked. Next: let an agent sign up on its own

A person is needed before any agent work starts: L1 · Needs a person. Our agent's browser signup at app.close.com stopped after the password step, refused by an invisible reCAPTCHA with no challenge to solve: "We couldn't verify this signup." Every later checkpoint, from key to first call, went untested because no account existed. The product's agent surface otherwise holds up well: llms.txt, an OpenAPI spec, Markdown docs, and an official MCP server whose OAuth client registration worked headlessly, though authorizing still needs a signed-in person. The trial needs no card, and paying or leaving were never reached.

Driven 11 Oct 2026 · The drive and its evidence
TwentyL4Runs on its own
  • Find: Docs for agents: llms.txt, an OpenAPI and an MCP server.
  • Access: Sign-up in a browser.
  • Use: 80% of the work.
  • Pay: Payment not reached.
  • Leave: Leaves on its own: Cancels on its own, deletes its account.

Got in; payment not reached. Next: pay without a person

Runs on its own: L4 · Runs on its own. Signup, onboarding and the first key need a browser, and invisible reCAPTCHA let our agent through with no challenge shown. Paying is where it stopped: a trial starts without a card, but clicking add credit card at checkout did nothing in our agent's browser, so a person has to add the card. Short of that, Twenty worked headless: REST and an official MCP server let it create a company and read it back, with tools covering records, custom objects, views and workflows. Cancelling and deleting the workspace both worked on their own, with no card ever added.

Gets furtherDriven 2 Oct 2026 · The drive and its evidence

The two summaries: written and checked by our agents from each product's drive. How we write.

Where each one stops.

CloseStopped at sign up: blocked

TwentyGot in; payment not reached

Close and Twenty, checkpoint by checkpoint
CheckpointCloseTwenty
DocsHeadlessHeadless
Sign upBlockedIn a browser
VerifyNot reachedIn a browser
KeyNot reachedIn a browser
First callNot reachedHeadless
First actionNot reachedHeadless
PayNot reachedNot reached
CancelNot reachedIn a browser
DeleteNot reachedIn a browser

Headless or in a browser.

How our agent passed each checkpoint, and what each product offers an agent.

Checkpoints by route, API, MCP, CLI and SDK
Checkpoints by how our agent passed them, and what each product offers an agent
CloseTwenty
Headless (checkpoints)13
In a browser (checkpoints)05
Needs a human (checkpoints)00
Blocked (checkpoints)10
Not tested (checkpoints)71
Work doneNot measured80% of the core
APIYesYes
OpenAPIYesYes
MCP serverYes (official)Yes (official)
CLINoYes
SDKNoNo
llms.txtYesYes

Bot checks, and where a person was needed.

Walls our agent met
CloseTwenty
Bot checkreCAPTCHA (invisible) stopped it at sign up, without a visible challengereCAPTCHA (invisible) let it through at sign up
Wall typeA check of our network and browserNo bot-check wall
First wallInvisible reCAPTCHA refuses the sign-upGot in; payment not reached
A person helpedNoNo

A check of our network and browser: It judged where our agent connects from and its browser, not a person. An agent that works on its own from a data center doesn't get through unless the owner lets signed agents in. How agents in a person's own browser fare isn't measured yet. Where we drive from.

Level and part scores.

Close and Twenty: level and part scores, 0 to 100
CloseTwenty
LevelL1 · Needs a personL4 · Runs on its own
Agent-ready setup90 of 100, good100 of 100, good
StandardsMCP client registration (behind) · OpenAPI 3.1.0 (1 version behind)None recorded

Holds up: not measured in these drives. Docs match is measured in an Audit. What the scores mean.

Pay, cancel and delete.

Paying, cancelling and deleting the account
CloseTwenty
PayPayment not reachedPayment not reached
Free plan or trialTrial, no cardTrial, no card
CancelNot reachedIn a browser
Delete the accountNot reachedIn a browser
How each one takes payment
  • Close: Payment not reached.
  • Twenty: Payment not reached.

Close vs Twenty: the short answers.

Which can an AI agent use, Close or Twenty?

Twenty gets an AI agent further: L4 · Runs on its own against L1 · Needs a person. With Close our agent was stopped at sign up (blocked); with Twenty it got in (payment not reached). Driven 11 Oct 2026 (Close) and 2 Oct 2026 (Twenty).

Can an AI agent sign up for Close and Twenty on its own?

Close: no, blocked. Twenty: yes, in a browser.

Do Close and Twenty have an MCP server?

Close: yes (official). Twenty: yes (official).

Can an AI agent delete its Close or Twenty account?

Close: not reached. Twenty: yes, in a browser.

The drives and the category.

Put your own shortlist side by side.

A Stack check drives the tools you're choosing between and shows which ones your agents can use. $490 for three tools, ready in 24 hours.