# Acuity Scheduling API vs Zoom Scheduler API

> Zoom Scheduler scores 50.6 (D) to Acuity Scheduling's 42.4 (E) for calendar access. Prices, MCP, x402, uptime and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/acuity-scheduling-vs-zoom-scheduler
- Markdown: https://www.anchorterminal.com/compare/acuity-scheduling-vs-zoom-scheduler.md (~2,450 tokens)
- Slim: https://www.anchorterminal.com/compare/acuity-scheduling-vs-zoom-scheduler.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/acuity-scheduling-vs-zoom-scheduler.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

Zoom Scheduler API scores 50.6 (D) on agent readiness against Acuity Scheduling API's 42.4 (E), and leads in 5 of 7 scored categories. Acuity Scheduling API leads on payments & pricing. Both do calendar access.

- Acuity Scheduling API: grade E, 42.4/100, rank #894 of 950. Markdown https://www.anchorterminal.com/tools/acuity-scheduling.md · JSON https://www.anchorterminal.com/api/v1/tools/acuity-scheduling.json
- Zoom Scheduler API: grade D, 50.6/100, rank #767 of 950. Markdown https://www.anchorterminal.com/tools/zoom-scheduler.md · JSON https://www.anchorterminal.com/api/v1/tools/zoom-scheduler.json
- Best calendar and scheduling APIs for AI agents: https://www.anchorterminal.com/best/scheduling/index.md
- All 45 scheduling comparisons: https://www.anchorterminal.com/compare/scheduling/index.md

## Which one, for what

### Acuity Scheduling API (E)

Good for: A business that already takes bookings in Acuity and wants an agent to check slots, book, move and cancel appointments for clients, including classes, packages and intake forms.

Ahead on:
- Payments & pricing, 30 against 25

Watch for: The pricing page lists custom API access on Premium only, $61 a month or $49 billed yearly

### Zoom Scheduler API (D)

Good for: An agent booking into a Zoom Scheduler user's or team's booking pages, with slot lookup, booking, cancellation and two webhooks.

Ahead on:
- Reliability, 63 against 58
- Schema & documentation, 61 against 56
- Security & auth, 54 against 27
- Maintenance & community, 28 against 15
- Transparency & trust, 69 against 54

Watch for: Zoom's API terms (section 3.7.9) forbid using the APIs to monitor availability or performance, or for benchmarking. This matters before any probe is run


## Score by category

| Category | Weight | Acuity Scheduling API | Zoom Scheduler API | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 58 | 63 | Zoom Scheduler API +5 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 56 | 61 | Zoom Scheduler API +5 |
| Agent ergonomics | 13% (16.2 this run) | 44 | 43 | Acuity Scheduling API +1 |
| Security & auth | 14% (17.5 this run) | 27 | 54 | Zoom Scheduler API +27 |
| Payments & pricing | 10% (12.5 this run) | 30 | 25 | Acuity Scheduling API +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 15 | 28 | Zoom Scheduler API +13 |
| Transparency & trust | 7% (8.8 this run) | 54 | 69 | Zoom Scheduler API +15 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **42.4 · E** | **50.6 · D** | |

## Facts side by side

| Fact | Acuity Scheduling API | Zoom Scheduler API |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Squarespace | Zoom Communications, Inc. |
| Hosted endpoint | `https://acuityscheduling.com/api/v1` | `https://api.zoom.us/v2` |
| Transports | HTTP | HTTP |
| Auth | OAuth or key | OAuth |
| Pricing | Paid | Paid |
| x402 | no | no |
| Licence | Proprietary service under Squarespace's Developer Terms. The Node.js and PHP SDKs are MIT | Proprietary service under the Zoom API Licence and Terms of Use |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| Last release | none | 2026-08-17 |
| Terms last updated | 2025-12-16 | 2025-07-16 |
| Privacy policy last updated | no date given | 2026-09-17 |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | yes | yes |
| Terms or service can change without notice | yes | yes |
| Arbitration or class-action waiver | yes | yes |
| Popularity | 9.2k npm/wk | none |

## Verdicts

**Acuity Scheduling API.** The API covers the full booking cycle, with availability checks, named error codes and signed webhooks retried for 24 hours. API access is sold only on the Premium plan at $61 a month, the single OAuth scope grants the whole account, and no changelog, idempotency key or audit log was found in the reviewed documentation.

**Zoom Scheduler API.** Each of the 24 operations has its own granular OAuth scope, and Zoom Scheduler and the REST API are separate components on the status page. No operation moves a booking, no official SDK covers Scheduler, and Zoom's API terms forbid benchmarking or monitoring the service.

## Before you call either

### Acuity Scheduling API

1. Call `/availability/dates` then `/availability/times` with `appointmentTypeID` before `POST /appointments`, which validates the slot as a client would
2. Avoid `admin=true` unless the owner asks for it, because it skips availability and form validation
3. Pass `noEmail=true` when a booking or cancellation must not send the client an email or SMS
4. Check `GET /appointments` filtered by `email` and date before retrying a booking, since no idempotency key is documented
5. Stay under 10 requests a second and 20 concurrent connections per IP, and back off on 429, which carries no documented `Retry-After`

### Zoom Scheduler API

1. Call `GET /scheduler/schedules/{scheduleId}/available_times` and book only a spot whose status is `available`
2. Send `start_date_time` in ISO 8601 with the booker's IANA `time_zone` to `POST /scheduler/attendee`. Expect 409 on a conflict
3. To move a booking, cancel it with `PATCH /scheduler/events/{eventId}` and `status` set to `cancelled`, then book the new slot
4. List scheduled events before retrying a booking, because no idempotency key is documented
5. Request a new Server-to-Server OAuth token every hour. That grant issues no refresh token

## Questions

### Which is better for AI agents, Acuity Scheduling API or Zoom Scheduler API?

Zoom Scheduler API scores 50.6 (D) on agent readiness against Acuity Scheduling API's 42.4 (E), and leads in 5 of 7 scored categories. Acuity Scheduling API leads on payments & pricing.

### Do Acuity Scheduling API and Zoom Scheduler API need an API key?

Acuity Scheduling API takes an API key or an OAuth sign-in. Zoom Scheduler API uses an OAuth sign-in.

### Can an agent call Acuity Scheduling API and Zoom Scheduler API without installing anything?

Yes. Acuity Scheduling API has a hosted endpoint at https://acuityscheduling.com/api/v1 and Zoom Scheduler API at https://api.zoom.us/v2.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/acuity-scheduling-vs-zoom-scheduler.json, and with the fewest tokens: https://www.anchorterminal.com/compare/acuity-scheduling-vs-zoom-scheduler.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "acuity-scheduling", "b": "zoom-scheduler"}`. From a terminal: `anchor compare acuity-scheduling zoom-scheduler`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/acuity-scheduling.json and https://www.anchorterminal.com/api/v1/tools/zoom-scheduler.json

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