Announcing Seam Instant Keys

This week, we're excited to announce the beta release of Instant Keys! This powerful new product enables you to create and share mobile keys with a single API call. These keys are shared with just a link and leverage App Clip on iOS to completely eliminate the hassle of app installation. No app, no account, just tap to unlock.

No app, no account, just tap to unlock

Instant Key is the most streamlined mobile access experience for Bluetooth-enabled locks available today—whether for hotel guests, real estate visitors, or on-site contractors. With a single API call, you can create a mobile key and deliver it through text, email, or your own app.

JavaScript
1const accessGrant = await seam.accessGrants.create({
2  user_identity: {
3	  email_address: "jane_doe@example.com"
4  },
5  space_ids: [
6    room_101_space_id,
7    common_space_id
8  ],
9  requested_access_methods: [
10    { mode: "mobile_key" },
11  ],
12  starts_at: "2025-07-13T15:00:00.000Z",
13  ends_at: "2025-07-16T11:00:00.000Z",
14});
15
16const instantKeyUrl = accessGrant.instant_key_url;
17// https://ik.seam.co/SRTCDE --> Send this Instant Key URL to your users.

Users simply tap a link to get a lightweight, native experience using iOS App Clips or Android Instant Apps. The entire process is designed to feel instant, intuitive, and secure. Deliver the Instant Key through text, email, or your own app.

Seam's prebuilt, hosted solution

Because Instant Key is hosted by Seam, this prebuilt solution enables you to delight your users, without distracting your development efforts from your core mission—connecting your hotel or apartment building. Using Seam Instant Keys means that you can go from 0 to 1 in minutes, with no additional mobile development needed.

Supports all major access systems

Seam Instant key supports the following access systems:

Salto Space and KS
ASSA ABLOY Visionline and Vostio (coming soon)

Ready to unlock with Instant Key?

Whether you’re building a self-check-in flow or adding mobile access to your guest app, Instant Key makes it simple to get started.

→ Learn more in our blog.

→ For instructions, see our docs.

→ Talk to Sales to explore your use case or request a demo.

2025.06.27 Changelog

New

SmartThings connections: If you want to specify the device types of future SmartThings device connections, use the new accepted_capabilities parameter when creating a Connect Webview. Set this parameter to one or more of lock or thermostat. The default value for this parameter is lock for SmartThings. For details, see Customize the Types of Devices to Connect.
Pagination support for listing Connect Webviews: We added pagination support for /connect_webviews/list. We now support pagination in list endpoints for access_codes, acs_users, connect_webviews, connected_accounts, and devices. To learn how to use pagination in the Seam API and SDKs, see our docs.

Changed

TTLock Wi-Fi locks in power saving mode: We added a lock.power_saving_mode warning. Certain TTLock models have a power-saving mode. When these locks are in power-saving mode, the Seam API cannot control them remotely. If you receive a lock.power_saving_mode warning, prompt your user to turn off power-saving mode. Then, retry the operation.

Fixes

Igloohome device.connected events: We corrected an issue in which device.connected events were not being sent for some Igloohome devices.
Akiles account deletion: We corrected an issue that prevented the deletion of Akiles accounts if there were any access codes programmed on associated devices.
Akiles access code updates: We corrected an issue such that you can now update the starts_at and ends_at times for access codes on Akiles devices.

Announcing Seam Instant Keys