Amazon Polly endpoints and quotas
The following are the service endpoints and service quotas for this service. To connect programmatically to an AWS service, you use an endpoint. In addition to the standard AWS endpoints, some AWS services offer FIPS endpoints in selected Regions. For more information, see AWS service endpoints. Service quotas, also referred to as limits, are the maximum number of service resources or operations for your AWS account. For more information, see AWS service quotas.
Service endpoints
| Region Name | Region | Endpoint | Protocol |
|---|---|---|---|
| US East (Ohio) | us-east-2 |
polly.us-east-2.amazonaws.com polly-fips.us-east-2.amazonaws.com |
HTTPS HTTPS |
| US East (N. Virginia) | us-east-1 |
polly.us-east-1.amazonaws.com polly-fips.us-east-1.amazonaws.com |
HTTPS HTTPS |
| US West (N. California) | us-west-1 |
polly.us-west-1.amazonaws.com polly-fips.us-west-1.amazonaws.com |
HTTPS HTTPS |
| US West (Oregon) | us-west-2 |
polly.us-west-2.amazonaws.com polly-fips.us-west-2.amazonaws.com |
HTTPS HTTPS |
| Africa (Cape Town) | af-south-1 | polly.af-south-1.amazonaws.com | HTTPS |
| Asia Pacific (Hong Kong) | ap-east-1 | polly.ap-east-1.amazonaws.com | HTTPS |
| Asia Pacific (Mumbai) | ap-south-1 | polly.ap-south-1.amazonaws.com | HTTPS |
| Asia Pacific (Osaka) | ap-northeast-3 | polly.ap-northeast-3.amazonaws.com | HTTPS |
| Asia Pacific (Seoul) | ap-northeast-2 | polly.ap-northeast-2.amazonaws.com | HTTPS |
| Asia Pacific (Singapore) | ap-southeast-1 | polly.ap-southeast-1.amazonaws.com | HTTPS |
| Asia Pacific (Sydney) | ap-southeast-2 | polly.ap-southeast-2.amazonaws.com | HTTPS |
| Asia Pacific (Tokyo) | ap-northeast-1 | polly.ap-northeast-1.amazonaws.com | HTTPS |
| Canada (Central) | ca-central-1 | polly.ca-central-1.amazonaws.com | HTTPS |
| Europe (Frankfurt) | eu-central-1 | polly.eu-central-1.amazonaws.com | HTTPS |
| Europe (Ireland) | eu-west-1 | polly.eu-west-1.amazonaws.com | HTTPS |
| Europe (London) | eu-west-2 | polly.eu-west-2.amazonaws.com | HTTPS |
| Europe (Paris) | eu-west-3 | polly.eu-west-3.amazonaws.com | HTTPS |
| Europe (Stockholm) | eu-north-1 | polly.eu-north-1.amazonaws.com | HTTPS |
| Middle East (Bahrain) | me-south-1 | polly.me-south-1.amazonaws.com | HTTPS |
| South America (São Paulo) | sa-east-1 | polly.sa-east-1.amazonaws.com | HTTPS |
| AWS GovCloud (US-West) | us-gov-west-1 |
polly.us-gov-west-1.amazonaws.com polly-fips.us-gov-west-1.amazonaws.com |
HTTPS HTTPS |
Service quotas
| Name | Default | Adjustable | Description |
|---|---|---|---|
| Lexicon count | Each supported Region: 100 | No | The maximum number of lexicons you can have in this account in the current region. |
| Lexicon size | Each supported Region: 40,000 | No | The maximum size of a single lexicon in characters. |
| Rate of GetSpeechSynthesisTask and ListSpeechSynthesisTasks requests | Each supported Region: 10 |
Yes |
The maximum number of GetSpeechSynthesisTask and ListSpeechSynthesisTasks requests per second that you can send in this account in the current region. |
| Rate of StartSpeechSynthesisTask (long-form) requests | Each supported Region: 1 |
Yes |
The maximum number of StartSpeechSynthesisTask (long-form engine) requests per second that you can send in this account in the current region. |
| Rate of StartSpeechSynthesisTask (neural) requests | Each supported Region: 1 |
Yes |
The maximum number of StartSpeechSynthesisTask (neural engine) requests per second that you can send in this account in the current region. |
| Rate of StartSpeechSynthesisTask (standard) requests | Each supported Region: 10 |
Yes |
The maximum number of StartSpeechSynthesisTask (standard engine) requests per second that you can send in this account in the current region. |
| Rate of SynthesizeSpeech (long-form) requests | Each supported Region: 8 |
Yes |
The maximum number of SynthesizeSpeech (long-form engine) requests per second that you can send in this account in the current region. |
| Rate of SynthesizeSpeech (neural) requests | Each supported Region: 8 |
Yes |
The maximum number of SynthesizeSpeech (neural engine) requests per second that you can send in this account in the current region. |
| Rate of SynthesizeSpeech (standard) requests | Each supported Region: 80 |
Yes |
The maximum number of SynthesizeSpeech (standard engine) requests per second that you can send in this account in the current region. This also includes DescribeVoices requests. |
| Rate of lexicon management requests | Each supported Region: 2 |
Yes |
The maximum number of lexicon management requests per second that you can send in this account in the current region. This limit applies to following operations combined: ListLexicon, GetLexicon, PutLexicon, DeleteLexicon. |
| StartSpeechSynthesisTask billed characters count | Each supported Region: 100,000 |
Yes |
Maximum size of the StartSpeechSynthesisTask input text in billed characters. SSML tags are not counted as billed characters. Applies to both standard and neural synthesis. |
| StartSpeechSynthesisTask lexicon count | Each supported Region: 5 | No | Maximum number of lexicons that can be used with StartSpeechSynthesisTask operation. Applies to both standard and neural synthesis. |
| StartSpeechSynthesisTask total characters limit | Each supported Region: 200,000 |
Yes |
Maximum size of the StartSpeechSynthesisTask input text in characters, including SSML tags and whitespace. Applies to both standard and neural synthesis. |
| SynthesizeSpeech billed character count | Each supported Region: 3,000 |
Yes |
Maximum size of the SynthesizeSpeech input text in billed characters. SSML tags are not counted as billed characters. Applies to both standard and neural synthesis. |
| SynthesizeSpeech lexicon count | Each supported Region: 5 | No | Maximum number of lexicons that can be used with SynthesizeSpeech operation. Applies to both standard and neural synthesis. |
| SynthesizeSpeech total character count | Each supported Region: 6,000 |
Yes |
Maximum size of the SynthesizeSpeech input text in characters, including SSML tags and whitespace. Applies to both standard and neural synthesis. |
For more information, see Quotas in the Amazon Polly Developer Guide.
