SavvyCal vs TidyCal for AI agents
As of 12 Oct 2026, TidyCal gets an AI agent further: L3 · Does the work against L1 · Needs a person.
- Find: No docs for agents.
- Access: Can't sign up.
- Use: Work not reached.
- Pay: Payment not reached.
- Leave: Leaving not reached.
Stopped at sign up: needs a human. Next: let an agent sign up on its own
A person has to get this one started: L1 · Needs a person. Our agent stopped at the sign-up form itself, where a visible hCaptcha image puzzle appears on page load, before it could reach verification, a token, or any endpoint. Documentation covers events, scheduling links, the current user, time zones, webhooks and workflows, with PAT and OAuth auth, but every call without a token returns an unauthenticated response, so none of that surface got exercised. Plans are bought on the web billing page, reachable only after a human clears sign-up, and both cancelling and deleting an account stay web-only with no API route either way.
Driven 6 Oct 2026 · The drive and its evidence- Find: Docs for agents: llms.txt, an OpenAPI and an MCP server.
- Access: Signs up in a browser.
- Use: 60% of the work.
- Pay: Reaches the checkout: Stopped at the card form.
- Leave: Leaves on its own: Nothing to cancel, deletes its account.
Got in, in a browser; the API is paid. Next: do 80% of the core work (now 60%)
Does the work (L3): our agent got in on its own past an invisible reCAPTCHA on the sign-up form, no verification mail needed. It read the headless API docs and llms.txt, then stopped at credentials: API tokens and the MCP server need a paid plan, so GET /me came back unauthenticated. Inside the browser it still created a booking type and published it live on the public page. No agent payment rail exists; upgrading means a hosted Stripe card checkout, so our agent paid nothing and stayed on the free plan. Deleting the account worked cleanly through an emailed erasure link, with login and the booking page both gone after.
Gets furtherDriven 12 Oct 2026 · The drive and its evidenceThe two summaries: written and checked by our agents from each product's drive. How we write.
Where each one stops.
SavvyCalStopped at sign up: needs a human
TidyCalGot in, in a browser; the API is paid
| Checkpoint | SavvyCal | TidyCal |
|---|---|---|
| Docs | Headless | Headless |
| Sign up | Needs a human | In a browser |
| Verify | Not reached | Not needed |
| Key | Not reached | Blocked |
| First call | Not reached | Blocked |
| First action | Not reached | In a browser |
| Pay | Not reached | In a browser |
| Cancel | Not reached | Not needed |
| Delete | Not reached | In 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
| SavvyCal | TidyCal | |
|---|---|---|
| Headless (checkpoints) | 1 | 1 |
| In a browser (checkpoints) | 0 | 4 |
| Needs a human (checkpoints) | 1 | 0 |
| Blocked (checkpoints) | 0 | 2 |
| Not tested (checkpoints) | 7 | 0 |
| Work done | Not measured | 60% of the core |
| API | Yes | Yes |
| OpenAPI | No | Yes |
| MCP server | No | Yes (official) |
| CLI | No | No |
| SDK | No | No |
| llms.txt | No | Yes |
Bot checks, and where a person was needed.
| SavvyCal | TidyCal | |
|---|---|---|
| Bot check | hCaptcha (image puzzle) stopped it at sign up, with a visible challenge | Google reCAPTCHA (invisible) let it through at sign up |
| Wall type | A challenge on the form | No bot-check wall |
| First wall | hCaptcha puzzle on the sign-up form | Got in, in a browser; the API is paid |
| A person helped | No | No |
A challenge on the form: It asks every visitor to prove they are human. It stops every agent on any network, and a signature doesn't help: a person does this step, or the owner opens it for agents. Where we drive from.
Level and part scores.
| SavvyCal | TidyCal | |
|---|---|---|
| Level | L1 · Needs a person | L3 · Does the work |
| Agent-ready setup | 30 of 100, poor | 90 of 100, good |
| Standards | MCP client registration (behind) | MCP client registration (behind) · OpenAPI 3.0.0 (2 versions behind) |
Holds up: not measured in these drives. Docs match is measured in an Audit. What the scores mean.
Pay, cancel and delete.
| SavvyCal | TidyCal | |
|---|---|---|
| Pay | Payment not reached | Reaches the checkout |
| Free plan or trial | Free plan | Free plan |
| Cancel | Not reached | Not needed |
| Delete the account | Not reached | In a browser |
How each one takes payment
- SavvyCal: Payment not reached.
- TidyCal: Reaches the checkout: stopped at the card form.
SavvyCal vs TidyCal: the short answers.
Which can an AI agent use, SavvyCal or TidyCal?
TidyCal gets an AI agent further: L3 · Does the work against L1 · Needs a person. With SavvyCal our agent was stopped at sign up (needs a human); with TidyCal it got in, in a browser (the API is paid). Driven 6 Oct 2026 (SavvyCal) and 12 Oct 2026 (TidyCal).
Can an AI agent sign up for SavvyCal and TidyCal on its own?
SavvyCal: no, needs a human. TidyCal: yes, in a browser.
Do SavvyCal and TidyCal have an MCP server?
SavvyCal: none found. TidyCal: yes (official).
Can an AI agent delete its SavvyCal or TidyCal account?
SavvyCal: not reached. TidyCal: yes, in a browser.
The drives and the category.
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