Close vs Copper for AI agents

As of 11 Oct 2026, both reach L1 · Needs a person, and with each our agent was stopped at sign up (blocked).

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
CopperL1Needs a person
  • Find: Some docs for agents: llms.txt.
  • Access: Can't sign up.
  • Use: 56% of the work.
  • Pay: Reaches the checkout: Stopped at the card form.
  • Leave: Nothing to cancel: Can't delete its account.

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

Copper is a sales CRM built tightly around Gmail and Google accounts. Once our agent had an account and an API key, it ran the day-to-day sales work (contacts, deals, tasks, tags) entirely on its own. Getting in is the hard part: the sign-up page offers only Google, and API keys are made only on a settings page in the browser.

Driven 2 Oct 2026 · The drive and its evidence

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

Where each one stops.

CloseStopped at sign up: blocked

CopperStopped at sign up: blocked

Close and Copper, checkpoint by checkpoint
CheckpointCloseCopper
DocsHeadlessHeadless
Sign upBlockedBlocked
VerifyNot reachedIn a browser
KeyNot reachedIn a browser
First callNot reachedHeadless
First actionNot reachedHeadless
PayNot reachedIn a browser
CancelNot reachedNot needed
DeleteNot reachedBlocked

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
CloseCopper
Headless (checkpoints)13
In a browser (checkpoints)03
Needs a human (checkpoints)00
Blocked (checkpoints)12
Not tested (checkpoints)70
Work doneNot measured56% of the core
APIYesYes
OpenAPIYesNo
MCP serverYes (official)No
CLINoNo
SDKNoNo
llms.txtYesYes

Bot checks, and where a person was needed.

Walls our agent met
CloseCopper
Bot checkreCAPTCHA (invisible) stopped it at sign up, without a visible challengeNone met
Wall typeA check of our network and browserNo bot-check wall
First wallInvisible reCAPTCHA refuses the sign-upGoogle-only sign-up, API keys only in UI
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 Copper: level and part scores, 0 to 100
CloseCopper
LevelL1 · Needs a personL1 · Needs a person
Agent-ready setup90 of 100, good50 of 100, fair
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
CloseCopper
PayPayment not reachedReaches the checkout
Free plan or trialTrial, no cardTrial, no card
CancelNot reachedNot needed
Delete the accountNot reachedBlocked
How each one takes payment
  • Close: Payment not reached.
  • Copper: Reaches the checkout: stopped at the card form.

Close vs Copper: the short answers.

Which can an AI agent use, Close or Copper?

Both reach L1 · Needs a person, and with each our agent was stopped at sign up (blocked). Driven 11 Oct 2026 (Close) and 2 Oct 2026 (Copper).

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

Close: no, blocked. Copper: no, blocked.

Do Close and Copper have an MCP server?

Close: yes (official). Copper: none found.

Can an AI agent delete its Close or Copper account?

Close: not reached. Copper: blocked.

The drives and the category.

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