Fillout vs Formbricks for AI agents

As of 2 Oct 2026, both reach L4 · Runs on its own, and with each our agent went through every checkpoint.

FilloutL4Runs on its own
  • Find: Docs for agents: llms.txt, an OpenAPI and an MCP server.
  • Access: Sign-up in a browser.
  • Use: 83% of the work.
  • Pay: Reaches the checkout: Stopped at the card form.
  • Leave: Leaves on its own: Nothing to cancel, deletes its account.

Through every checkpoint. Next: pay without a person

L4 · Runs on its own: our agent got in on its own and worked the API without getting stuck on any checkpoint. Signup, email verification and the key page in Settings > Developer all passed, and an invisible reCAPTCHA let our agent's browser through. Through the API it listed forms and created, searched and deleted submissions on its own; building the forms themselves (fields, logic, calculations, publish) still needs the web builder, since the MCP server has no form tools. Upgrading runs through an embedded Stripe card form, and deleting the organization removed the forms, database and submissions in one step, after which the key and MCP token were rejected.

Driven 2 Oct 2026 · The drive and its evidence
FormbricksL4Runs on its own
  • Find: Docs for agents: llms.txt, an OpenAPI and an MCP server.
  • Access: Sign-up in a browser.
  • Use: 100% of the work.
  • Pay: Reaches the checkout: Stopped at the card form.
  • Leave: Leaves on its own: Cancels on its own, deletes its account.

Through every checkpoint. Next: pay without a person

Gets in on its own, creates its key and runs the whole survey lifecycle: L4 · Runs on its own. Our agent passed every checkpoint: email sign-up with no CAPTCHA, a headless verification link, an API key from Organization Settings, then calls through the REST API and the official OAuth MCP server. It created, edited, published and read back surveys and responses, with webhooks and targeting, all from the API or MCP; sign-up, the key page, tags, segments, billing and account deletion stayed in the browser. The trial needed no card; our agent returned the plan to Hobby in the billing screen, then deleted its account and org from the profile page.

Driven 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.

FilloutThrough every checkpoint

FormbricksThrough every checkpoint

Fillout and Formbricks, checkpoint by checkpoint
CheckpointFilloutFormbricks
DocsHeadlessHeadless
Sign upIn a browserIn a browser
VerifyIn a browserHeadless
KeyIn a browserIn a browser
First callHeadlessHeadless
First actionIn a browserHeadless
PayIn a browserIn a browser
CancelNot neededIn a browser
DeleteIn a browserIn 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
FilloutFormbricks
Headless (checkpoints)24
In a browser (checkpoints)65
Needs a human (checkpoints)00
Blocked (checkpoints)00
Not tested (checkpoints)00
Work done83% of the core100% of the core
APIYesYes
OpenAPIYesYes
MCP serverYes (official)Yes (official)
CLINoNo
SDKNoYes
llms.txtYesYes

Bot checks, and where a person was needed.

Walls our agent met
FilloutFormbricks
Bot checkreCAPTCHA (invisible, v3-style) let it through at sign upNone met
Wall typeNo bot-check wallNo bot-check wall
First wallNoneNone
A person helpedNoNo

Level and part scores.

Fillout and Formbricks: level and part scores, 0 to 100
FilloutFormbricks
LevelL4 · Runs on its ownL4 · Runs on its own
Agent-ready setup90 of 100, good100 of 100, good

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
FilloutFormbricks
PayReaches the checkoutReaches the checkout
Free plan or trialFree planTrial, no card
CancelNot neededIn a browser
Delete the accountIn a browserIn a browser
How each one takes payment
  • Fillout: Reaches the checkout: stopped at the card form.
  • Formbricks: Reaches the checkout: stopped at the card form.

Fillout vs Formbricks: the short answers.

Which can an AI agent use, Fillout or Formbricks?

Both reach L4 · Runs on its own, and with each our agent went through every checkpoint. Both driven 2 Oct 2026.

Can an AI agent sign up for Fillout and Formbricks on its own?

Fillout: yes, in a browser. Formbricks: yes, in a browser.

Do Fillout and Formbricks have an MCP server?

Fillout: yes (official). Formbricks: yes (official).

Can an AI agent delete its Fillout or Formbricks account?

Fillout: yes, in a browser. Formbricks: yes, in a browser.

The drives and the category.

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