Asynchronous HTTP Interface v2 Issue (2026-07-01) [Resolved]
On July 1, 2026, an error occurred during speech recognition processing in the AmiVoice API's asynchronous HTTP interface v2, preventing the successful acquisition of recognition results.
The service has now been restored and is available for normal use.
Impact Range
- Occurrence Date and Time: July 1, 2026, 00:00 (JST) to approximately July 1, 2026, 10:40 (JST)
- Target service: AmiVoice API asynchronous HTTP interface v2
During the above time period, an Internal Server Error occurred during speech recognition processing for requests using the asynchronous HTTP interface v2.
*The asynchronous HTTP interface v1, synchronous HTTP interface, and WebSocket interface are not affected.
Cause
The issue stemmed from the expired license for the speech recognition server on the asynchronous HTTP interface v2 server.
While the licenses for the synchronous HTTP interface and WebSocket interface had been updated in advance, the license referenced by the asynchronous HTTP interface v2 was overlooked, resulting in the inability of the affected servers to perform speech recognition processing correctly from July 1, 2026, 00:00 (JST) onwards.
This was due to insufficient sharing of license management information between the development and operations teams, and a lack of a comprehensive process for verifying which licenses needed updating.
Remediation Actions
The license information referenced in the production environment was updated at approximately 10:23 (JST) on July 1, 2026. Subsequently, the server that had been running while still referencing the old license was stopped, and recovery was confirmed at approximately 10:40 (JST) on July 1, 2026.
Preventive Remediation & Process Improvements
We will revise the process to ensure that the update targets, scope of impact, and verification results are shared between the development and operations teams, and that no target services are overlooked.
In addition, we will revise the license renewal checklist to allow you to check the renewal status for all production services, including the synchronous HTTP interface, WebSocket interface, and asynchronous HTTP interface v2.
We sincerely apologize for any inconvenience caused to our AmiVoice API users.