United States Postal Service · Rate Limits
United States Postal Service Rate Limits
USPS publishes that quotas exist on the modernized developers.usps.com platform, but it does not publish per-second or per-day numeric limits. Quota increases and access to non-default APIs are gated behind a USPS API service request. Authentication is OAuth 2.0 Client Credentials.
United States Postal Service Rate Limits is the machine-readable rate-limit profile for United States Postal Service on the APIs.io network, conforming to the API Commons Rate Limits specification.
It captures 2 rate-limit definitions, measuring varies.
The profile also includes 3 backoff/retry policies defined.
Tagged areas include Government, Postal Service, and Rate Limiting.
2 Limits
GovernmentPostal ServiceRate Limiting
Limits
Default product quota api-key
see https://developers.usps.com (request quota increase via USPS API service request)
Labels APIs api-key
enrollment in USPS Ship and Enterprise Payment Account required
Policies
OAuth 2.0 Client Credentials
Access uses OAuth 2.0 client credentials issued through the USPS Developer Portal.
Quota Increase Process
To raise default quotas or access non-default APIs, submit a USPS API service request through the developer portal.
Labels Approval
Labels APIs require additional approval, USPS Ship enrollment, and an Enterprise Payment Account before activation.