Amazon Alexa and Google Cast device certification
Putting Alexa or Google Cast in a speaker, a TV or a home appliance adds a private programme on top of radio and EMC certification. The map changed between 2024 and 2026. On the Amazon side, the AVS Device SDK was archived on January 16, 2024, AVS developer tools are "no longer generally available for Alexa Built-in", and Amazon sends device makers to Works with Alexa, whose Matter rules tightened in 2025 and 2026. On the Google side, "Chromecast built-in" became "Google Cast" in 2024, Google Cast for Audio 2.0 is rolling out to speakers, and Works with Google Home is moving Matter testing to the CSA Interop Test Lab. This page sets out what Amazon and Google publish on their own developer pages in October 2026: the routes still open, the dated rule changes, the Works with Alexa Matter checklist, the Cast for audio constraints, and the claims the vendor texts contradict.
Dated changes, 2022 to 2026
Section titled “Dated changes, 2022 to 2026”| Date | Change | Source |
|---|---|---|
| September 29, 2022 | AVS Device SDK v3.0.0, the last release on GitHub | alexa/avs-device-sdk releases |
| January 16, 2024 | AVS Device SDK repository archived, read-only, "no longer being maintained" | alexa/avs-device-sdk |
| May 2024 (Google I/O) | The Chromecast built-in brand renamed Google Cast | 9to5Google (secondary); Google consumer pages now use "Google Cast" |
| August 7, 2024 | Works with Alexa (WWA) badging: invalid skill responses must stay under 3% of request volume over a rolling 30 days | Amazon blog, August 2024 |
| February 7, 2025 | New WWA criteria (camera snapshots, doorbell live view, thermostat modes); security incidents affecting more than 10,000 devices or lasting over 1 hour must be remediated promptly | Amazon blog, August 2024 |
| March 17, 2025 | Amazon accepts CSA Interop Lab results for WWA on Matter lighting (light bulb, ceiling light, light strip, lamp); Allion Labs and PAL Acoustics join UL Solutions as WWA test facilities | Amazon blog, March 2025 |
| July 7, 2025 | WWA cameras must use WebRTC through the RTCSessionController API | Amazon blog, August 2024 |
| August 1, 2025 | RED delegated act on cybersecurity (Article 3(3)(d)(e)(f)) applies in the EU | Regulation (EU) 2022/30 |
| October 1, 2025 | WWA: INTERNAL_ERROR and SKILL_RESPONSE_TIMEOUT_EXCEPTION under 3%; new Matter devices need pairing instructions in the DCL and, with Extended Discovery, a 24-hour timeout for security devices | Amazon blog, August 2025 |
| December 1, 2025 | WWA cameras with computer-vision events must use the ObjectDetectionSensor API | Amazon blog, August 2024 |
| January 31, 2026 | New lighting and power Matter devices seeking WWA must support Matter Simple Setup | Amazon blog, August 2025 |
| 2026 | Google: all Matter integration and testing for Works with Google Home requires the Alliance Interop Test | Google Home developer pages |
| March 2026 | ACK SDK for Matter adds Espressif ESP32-C6 (after ESP32-C3, Beken BK7235, Bouffalo Lab BL616) | Amazon blog, March 2026 |
| July 2026 | Alexa+ "AI-powered smart home developer toolkit" for device makers, in Preview | Amazon Alexa+ blog, July 2026 |
| July 31, 2026 | Existing WWA-certified lighting and power Matter devices must have implemented and verified Matter Simple Setup to keep the badge | Amazon blog, August 2025 |
| September 11, 2026 | Cyber Resilience Act reporting obligations apply (full application December 11, 2027) | Regulation (EU) 2024/2847 |
Amazon: the routes in October 2026
Section titled “Amazon: the routes in October 2026”| Route | What the product does | Certification Amazon describes | Status |
|---|---|---|---|
| Alexa Built-in (AVS) | Users talk to Alexa through the microphone and speaker of the product | Amazon-provided self-tests, then testing by Amazon or an Authorized Test Lab; functional, user experience, acoustic, music and security tests; Alexa Built-in badge | AVS developer tools "no longer generally available"; SDK archived since January 16, 2024 |
| Works with Alexa (WWA) | Alexa controls the product through an add-on (formerly smart home skill), ACK, Matter or a local hub | Alexa Certification Console; testing by an independent third-party facility, fee paid to the facility at each submission; "at least one month" | Open; requirements updated in 2024, 2025 and 2026 |
| Alexa Connect Kit (ACK) | ACK SDK on an Amazon-qualified SoC, ACK SDK for Matter, or the Amazon-managed ACK module; Amazon runs cloud, security firmware and OTA | WWA plus Frustration-Free Setup (FFS); CSA Matter certification as well for ACK Matter devices | Open; per-device fee covering the hardware module and the ACK cloud service |
| Alexa+ smart home toolkit | Device makers expose device features to Alexa+ | Not described in the announcement | Preview (July 2026) |
Amazon also allows Alexa Built-in products that control device endpoints to apply for WWA.
Alexa Built-in: what the acoustic tests measure
Section titled “Alexa Built-in: what the acoustic tests measure”For products already in the Alexa Built-in programme, Amazon describes the acoustic certification through three parameters:
- false rejection rate (FRR): how often the device fails to wake on "Alexa",
- false acceptance rate (FAR): how often it wakes when nobody addresses it,
- response accuracy rate (RAR): how often the response is the right one.
Tests run near field (the user "within a meter or two") and far field, at several positions, in silence, during playback from the device and with background noise (music from another device, stationary noise such as air conditioning). Amazon recommends acoustic echo cancellation and "at least two or more microphones" with beamforming. Pass thresholds are not on the public pages.
The Authorized Test Labs (ATL) "perform Alexa built-in certification testing" and each is "compliant with ISO 17025". A maker can also run its own tests before submitting to Amazon. The list Amazon publishes for Alexa Built-in devices on October 7, 2026:
| Region | Authorized Test Labs (Alexa Built-in) |
|---|---|
| North America | Spirent (Frederick, Maryland), AST Technology Labs (Melbourne, Florida), CETECOM USA (Milpitas, California), HEAD acoustics (Brighton, Michigan) |
| Asia-Pacific | Allion Labs (Taipei, Shenzhen), DEKRA (Guangzhou, Taipei), Shenzhen Microtest, PAL Acoustics Technology (Taipei, Shenzhen), Wipro (Bangalore), Nessie Industrial (Taipei) |
| Europe | Resillion (Belgium), DEKRA (Spain), CETECOM (Essen, Germany) |
Separate lists cover acoustic and security labs for Amazon smart vehicle integrations.
What the AVS Program Requirements actually require
Section titled “What the AVS Program Requirements actually require”| Topic | Requirement in the AVS Program Requirements |
|---|---|
| Recording indicator | Either a prominent visual cue for the whole time the product records for Alexa, or a wake-up sound and an end-of-request sound (which users may disable) |
| User notice | A reasonably prominent notice explaining how recording starts and stops |
| Wake word | Only wake words authorised by Amazon ("currently Alexa") |
| Audio handling | Send audio directly to the Alexa Service; do not collect or store copies of audio, transcripts or metadata |
| Updates | Product must be capable of receiving secure over-the-air updates and apply required updates within the timeframes Amazon specifies |
| Branding | No name, logo, form factor or light ring confusingly similar to Alexa, Echo or Amazon |
| Amazon Music | HTTPS with TLS 1.2 or newer, HLS v4, no more than 20 seconds cached, never on non-volatile storage |
| Distribution | Amazon may require submission for review and approval before distribution |
Works with Alexa: the Matter checklist
Section titled “Works with Alexa: the Matter checklist”The WWA local connection requirements set the following conditions for Matter devices (native or bridged) before application.
| Item | Requirement |
|---|---|
| Specification | Matter 1.5 or lower |
| Device type | A category supported by Alexa, with the Matter clusters for that category declared as Alexa capability interfaces |
| CSA | CSA certification, valid Vendor ID and Product ID, registered in the Distributed Compliance Ledger (DCL) |
| Brand | Brand name identical in the DCL and on the packaging |
| Basic Cluster | UniqueID set to a unique random value, NodeLabel blank by default |
| Evidence | chip-tool run logs submitted at registration |
| Interoperability test | Discovery and control with a Matter-enabled Echo or eero device, over Wi-Fi or Thread (Thread needs a Thread-enabled Echo or eero) |
| Matter Simple Setup | Mandatory for lighting and power devices; provide the 11-digit or 21-digit code or the QR code of the sample |
| Pairing instructions | In the DCL before submission |
| Extended Discovery | If enabled, configured in CHIPDeviceConfig.h; 86,400 s timeout for security devices; a way to re-enter commissioning mode |
| BLE mesh devices (non-Matter) | BLE Mesh v1.1 and Bluetooth SIG qualification |
For ACK devices, Amazon asks for at least three Design Validation Test samples with production-ready firmware, packaging or packaging proofs with FFS-ready barcodes, and completed self-test plans, including the EndpointManagement test plan whatever the capabilities. Product variants sharing the same DeviceType are tested once.
Google: Google Cast, Cast for audio and Works with Google Home
Section titled “Google: Google Cast, Cast for audio and Works with Google Home”Google Cast
Section titled “Google Cast”The Cast SDK lets a sender (Android, iOS or web app, Chrome, or a Google Home touch surface) start and control playback on a receiver. Receivers are Web Receivers (custom, styled or default) or Android TV receivers through Cast Connect. Receiver apps are registered with an app ID that keys the sender to its receiver.
Discovery problems are diagnosed by finding the _googlecast._tcp.local service record on the network. Google also notes that a system-time gap of as little as 10 minutes between sender and Cast device can make the authentication handshake fail.
Google Cast for audio and GC4A 2.0
Section titled “Google Cast for audio and GC4A 2.0”| Point | What Google states |
|---|---|
| Content | Audio only; critical information and most of the UI on the sender |
| DRM | "Only support Widevine" for DRM-protected content |
| GC4A 2.0 DRM | com.widevine.alpha and org.w3.clearkey; only software decryption (SW_SECURE_CRYPTO) |
| GC4A 2.0 scope | Next-generation platform for low-memory devices, rolling out to new and existing speakers; user agent contains Castlite/ |
| Volume | The sender usually controls the full volume range of the speaker |
| Registration | Register the Cast for audio device for testing and the app ("Supports casting to audio-only devices") in the Google Cast SDK Developer Console |
Google does not publish on its developer pages a certification procedure for makers who build Google Cast into a speaker or TV. For video DRM, Widevine describes its device-maker path: a documentation package, a technical discussion including the Widevine robustness rules, exchange of libraries and SDKs, and a keybox request where needed. Widevine bases device security on factory-provisioned keybox files that establish a hardware root of trust.
The Google Assistant SDK page addresses makers, hobbyists and "non-commercial, hardware projects".
Works with Google Home
Section titled “Works with Google Home”The Works with Google Home (WWGH) badge goes to devices that pass Google certification, whatever the connection type (Matter, cloud-to-cloud, Local Home SDK). For Matter, Google is moving in three phases to CSA Interop Test Lab (ITL) results: ITL results accepted for some device types, then for all Matter device types alongside the Google Home Test Suite, then ITL results as the only route to the badge, the Test Suite remaining for development. Google states that starting in 2026 all Matter integration and testing will require the Alliance Interop Test. Cloud-to-cloud certification is unchanged.
Matter Casting
Section titled “Matter Casting”Matter Casting is defined in the Media section of the Matter Application Cluster specification. Amazon documents it for Fire TV and Echo Show, "as defined in the Matter specification 1.5". The Fire TV or Echo Show is the casting video player, the phone app is the client, and the Fire TV app is the content app. The client discovers players by DNS-SD and joins the player fabric through User Directed Commissioning; it then drives clusters such as Keypad Input, Media Playback and Account Login. Amazon lists most Fire TV devices on Fire OS 7 or higher as supported. Matter Casting is a different protocol from Google Cast: a Cast receiver does not become a Matter casting player by itself.
Layers that stay separate
Section titled “Layers that stay separate”None of these programmes replaces regulatory certification:
- EU: CE marking under the RED (RED radio compliance overview), including Article 3(3)(d)(e)(f) since August 1, 2025 (EN 18031-1, -2 and -3, CEN-CENELEC, cited with restrictions), and the Cyber Resilience Act (reporting from September 11, 2026, full application December 11, 2027).
- United States: FCC equipment authorization for the radio parts.
- Wi-Fi CERTIFIED: a product built on an unmodified certified module can use the derivative path with no additional testing (Wi-Fi Alliance certification).
- Bluetooth: Bluetooth SIG qualification, required by WWA for BLE mesh devices.
- Matter: CSA Matter certification, required by both WWA and WWGH for Matter devices.
ACK modules and SoCs handle cloud, security firmware and OTA updates, but the end product remains the regulatory responsibility of its manufacturer.
Claims the texts contradict
Section titled “Claims the texts contradict”| Common claim (including the previous version of this page) | What the vendor texts say |
|---|---|
| "Amazon no longer accepts new integrations; new projects should use WWA or ACK." | Amazon says AVS developer tools are "no longer generally available for Alexa Built-in" and points to WWA. WWA and ACK are for devices Alexa controls, not for a voice client on the device. |
| "Alexa Built-in Lite" and an "AVS Integration Kit" are current certification tracks. | Neither appears on the current Amazon Alexa Built-in, ACK or WWA pages. |
| ACK means a Wi-Fi plus MCU module with Amazon firmware. | ACK now has three options: ACK SDK on an Amazon-qualified SoC, ACK SDK for Matter, and the ACK module. |
| A hardware mute button and an always-on LED are mandatory under the AVS rules. | The Program Requirements allow a visual cue for the recording period or a wake-up and end-of-request sound. |
| Acoustic tests need an anechoic chamber and named instrument makers. | Amazon describes near-field and far-field tests at several positions with silence, playback and noise, done by Amazon or an ISO 17025 Authorized Test Lab. It names no chamber type or instrument. |
| Google Cast discovery uses mDNS-SD plus DIAL. | The Cast discovery guide works from the _googlecast._tcp.local mDNS record; DIAL is not mentioned in it. |
| Cast audio products carry no DRM constraint. | Google Cast for audio devices "only support Widevine"; GC4A 2.0 supports only software decryption. |
| "Google Assistant built-in" is a commercial certification with an acoustic test plan. | The Google Assistant SDK page targets non-commercial projects and describes no commercial certification or acoustic test plan. |
| Matter casting runs on Matter 1.3 with "Casting Source" and "Casting Target" roles. | Amazon implements Matter Casting as defined in Matter 1.5, with player, client and content app roles. |
| WWA testing is done by Amazon. | Amazon uses an independent third-party facility (UL Solutions, Allion Labs, PAL Acoustics, or the CSA Interop Lab for Matter lighting), paid by the maker at each submission. |
Common pitfalls
Section titled “Common pitfalls”| Pitfall | Consequence |
|---|---|
| Planning a new Alexa Built-in voice product on the archived AVS Device SDK | No general access to AVS developer tools; no SDK maintenance since January 2024 |
| Matter device without pairing instructions in the DCL | WWA submission not ready (required since October 1, 2025) |
| Lighting or power Matter device without Matter Simple Setup | Not certifiable for WWA since January 31, 2026; badge at risk for existing products after July 31, 2026 |
| Brand name in the DCL differing from the packaging | WWA requirement not met |
| Extended Discovery left indefinite on a lock or camera | Breaches the 24-hour timeout rule for security devices |
| Error rates above 3% after launch | WWA badges can be removed for all ASINs of the developer and certifications paused |
| Planning WWGH Matter certification on the Google Home Test Suite | The Test Suite becomes a development tool; ITL results become the only route |
| Cast audio receiver app relying on hardware-backed DRM | GC4A 2.0 supports only software decryption |
| Treating a private badge as market access | RED, FCC, Wi-Fi, Bluetooth and Matter certifications are still required |
Step-by-step for a Matter appliance targeting Alexa and Google Home
Section titled “Step-by-step for a Matter appliance targeting Alexa and Google Home”- Pick the integration: plain Matter, ACK SDK for Matter (Amazon-qualified SoC), or an add-on; for ACK, buy a development kit and contact Amazon before volume production.
- Join the CSA, obtain Vendor ID and Product ID, and certify the product under Matter (Matter certification); register in the DCL with pairing instructions and the same brand name as the packaging.
- Implement Matter Simple Setup if the product is lighting or power, and Extended Discovery with the 24-hour timeout if it is a security device.
- Run the WWA self-tests: chip-tool logs, test with a Matter-enabled Echo or eero device, the test plans for each capability and EndpointManagement (ACK); FFS test plans for ACK.
- Choose the test facility in the Alexa Certification Console (UL Solutions, Allion Labs, PAL Acoustics, or the CSA Interop Lab where accepted) and plan at least one month.
- For Google Home, submit Alliance Interop Test Lab results for WWGH.
- In parallel, RED or FCC radio, RED cybersecurity, and Wi-Fi or Bluetooth certifications.
- After launch, track the error-rate thresholds and the dated WWA rule changes.
For cross-cutting orders of magnitude per phase, see certification timeline.
Further reading
Section titled “Further reading”- Wi-Fi Alliance certification: Wi-Fi CERTIFIED paths, including the derivative path for certified modules
- Bluetooth SIG qualification: Bluetooth layer when used by the product
- Matter certification: CSA process, DAC and DCL
- Thread Group certification: Thread layer for Matter over Thread
- Cyber Resilience Act: EU product cybersecurity regulation
- EN 303 645 IoT cybersecurity: European consumer IoT cybersecurity baseline
- NIST IR 8425 IoT device security: US consumer IoT cybersecurity profile
- Acoustic safety EN 50332: listening side, separate from the microphone-input tests
- Certification timeline: cross-cutting orders of magnitude per phase
- Glossary: definitions used on this site
See also
Section titled “See also”- USB-IF: USB-C, USB4 and USB Power Delivery certification
- DECT Forum: certification of classic DECT and DECT NR+
- NFC Forum certification: CR15, device classes, fees
- HDMI Forum and HDMI LA: device and cable certification
Sources & references
- Amazon Developer, Alexa Built-in devices (AVS availability notice), Amazon developer.amazon.com/en-US/alexa/alexa-voice-service
- alexa/avs-device-sdk repository (archived January 16, 2024), Amazon (GitHub) github.com/alexa/avs-device-sdk
- AVS Program Requirements, Amazon developer.amazon.com/support/legal/alexa/alexa-voice-service/terms-and-agreements
- Alexa Built-in, Authorized Third-Party Labs, Amazon developer.amazon.com/en-US/alexa/devices/alexa-built-in/authorized-3p-labs
- Alexa Built-in Business Resources (badging, testing), Amazon developer.amazon.com/en-US/alexa/devices/alexa-built-in/business-resources
- Acoustic certification tips for AVS device makers (August 2023), Amazon developer.amazon.com/en-US/blogs/alexa/device-makers/2023/08/acoustic-certification-alexa-august-2023
- Voice Interoperability design guide, Privacy and Security, Amazon developer.amazon.com/en-US/alexa/voice-interoperability/design-guide/privacy-security
- Works with Alexa Overview, Amazon developer.amazon.com/en-US/docs/alexa/smarthome/wwa-overview.html
- Works with Alexa Local Connection Requirements (Matter, BLE mesh), Amazon developer.amazon.com/en-US/docs/alexa/smarthome/wwa-connection-requirements.html
- Introducing New Works with Alexa Requirements (August 2024), Amazon developer.amazon.com/en-US/blogs/alexa/device-makers/2024/08/Alexa-wwa-august-2024
- Introducing new ways to certify for Works with Alexa (March 2025), Amazon developer.amazon.com/en-US/blogs/alexa/alexa-skills-kit/2025/03/certify-for-works-with-alexa
- New Works with Alexa setup and reliability standards (August 2025), Amazon developer.amazon.com/en-US/blogs/alexa/alexa-skills-kit/2025/08/new-works-with-alexa-setup-and-standards
- Alexa Connect Kit (ACK), Amazon developer.amazon.com/en-US/alexa/connected-devices/alexa-connect-kit
- ACK Testing and Certification, Amazon developer.amazon.com/en-US/docs/alexa/ack/certification-process.html
- Certify ACK-based Matter Devices, Amazon developer.amazon.com/en-US/docs/alexa/ack/matter-certify-device.html
- ACK SDK for Matter adds Espressif ESP32-C6 (March 2026), Amazon developer.amazon.com/en-US/blogs/alexa/device-makers/2026/03/enhanced-device-development-capabilities
- Alexa+ launches new ways to build experiences (July 2026), Amazon developer.amazon.com/alexaplus/blogs/2026/07/alexa-plus-new-ways-to-build-experiences
- Overview of Matter Casting (Fire TV), Amazon developer.amazon.com/docs/fire-tv/overview-of-matter-casting.html
- Google Cast SDK, Google developers.google.com/cast
- Google Cast, Overview (senders and receivers), Google developers.google.com/cast/docs/overview
- Google Cast, Audio Devices (Google Cast for Audio and GC4A 2.0), Google developers.google.com/cast/docs/audio
- Google Cast, Troubleshooting device discovery, Google developers.google.com/cast/docs/discovery
- Google Assistant SDK, Google developers.google.com/assistant/sdk
- Google Home, Matter certification overview (Works with Google Home), Google developers.home.google.com/matter/certification
- Google Home, Alliance Interop Test Lab integration transition, Google developers.home.google.com/matter/interop-test-lab
- Widevine DRM, device manufacturers and chipset vendors, Google www.widevine.com/solutions/widevine-drm
- 'Google Cast' is replacing the 'Chromecast built-in' brand (secondary source, May 26, 2024), 9to5Google 9to5google.com/2024/05/26/google-cast-chromecast-built-in/
- Commission Delegated Regulation (EU) 2022/30 (RED Article 3(3)(d)(e)(f)), EUR-Lex eur-lex.europa.eu/eli/reg_del/2022/30/oj
- Regulation (EU) 2024/2847, Cyber Resilience Act, EUR-Lex eur-lex.europa.eu/eli/reg/2024/2847/oj
- Connectivity Standards Alliance, Matter, CSA csa-iot.org/all-solutions/matter/
Frequently asked questions
- Can a new product still get Alexa Built-in through the Alexa Voice Service?
- Not as an open programme. On October 7, 2026 the Amazon Alexa Built-in page states that Alexa Voice Service (AVS) developer tools "are no longer generally available for Alexa Built-in" and sends device makers to the Works with Alexa programme. The AVS Device SDK repository on GitHub was archived on January 16, 2024 and is marked as no longer maintained; its last release, v3.0.0, dates from September 29, 2022. Works with Alexa covers devices that Alexa controls (through an add-on, the Alexa Connect Kit, Matter or a local hub), not a voice client running on the product.
- What is the difference between Alexa Built-in and Alexa Connect Kit (ACK)?
- The Alexa Built-in devices let users talk to Alexa through the microphone and speaker of the product, powered by AVS. ACK is a managed service for products that Alexa controls: the maker integrates an ACK SDK on an Amazon-qualified SoC, the ACK SDK for Matter, or the Amazon-managed ACK module, and Amazon runs the cloud, security firmware and OTA updates. An ACK product must pass Works with Alexa and Frustration-Free Setup certification, plus CSA Matter certification for the Matter variant.
- What does the Alexa acoustic certification measure?
- Amazon describes three parameters: false rejection rate (the device fails to wake on "Alexa"), false acceptance rate (it wakes when it should not) and response accuracy rate. Tests run near field (the user "within a meter or two") and far field, in silence, during playback from the device and with background noise. The maker first runs Amazon-provided self-tests, then Amazon or an Authorized Test Lab, compliant with ISO/IEC 17025, tests for certification. Amazon does not publish pass thresholds on its public pages.
- Is a hardware mute button mandatory under the AVS Program Requirements?
- The AVS Program Requirements do not say so. They require either a prominent visual cue for the whole time the product records for Alexa, or a wake-up sound and an end-of-request sound, plus a notice explaining how recording starts and stops. The Amazon multi-agent design guide says it is "very important" to convey the microphone on or off state. The older AVS UX pages on buttons no longer resolve on the Amazon site.
- What does Works with Alexa require from a Matter device?
- Matter 1.5 or lower, CSA certification with a valid Vendor ID and Product ID registered in the Distributed Compliance Ledger, a brand name identical in the DCL and on the packaging, chip-tool logs, and a test with a Matter-enabled Echo or eero device. Since January 31, 2026, new lighting and power Matter devices must support Matter Simple Setup; existing certified ones had until July 31, 2026 to keep the badge.
- Which DRM does Google Cast for audio support?
- Google states that Google Cast for audio devices only support Widevine for DRM-protected content. On the newer Google Cast for Audio 2.0 platform, built for low-memory speakers, the Widevine and Clear Key systems are available but only software decryption (
SW_SECURE_CRYPTO) is supported. - Does Google publish a certification procedure for building Google Cast into a speaker or TV?
- Not on its public developer pages. The Cast SDK pages cover sender and receiver apps, device registration for testing in the Google Cast SDK Developer Console, Cast for audio constraints and discovery troubleshooting. The Widevine site describes its own integration path for device makers and chipset vendors (documentation package, robustness rules review, device key request). The Google Assistant SDK is offered for non-commercial projects.
- Does AVS, Works with Alexa or Google Cast replace FCC or CE radio certification?
- No. These are private brand and ecosystem programmes. The radio interfaces still fall under the RED and its delegated act on cybersecurity (applicable since August 1, 2025) in the EU and under FCC rules in the United States. Wi-Fi CERTIFIED, Bluetooth qualification and CSA Matter certification are separate again, and Works with Alexa makes some of them prerequisites (CSA certification for Matter, Bluetooth SIG qualification for BLE mesh).