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  • Important Update: eBay's API integrations will be modified to address data handling requirements for select developers. Usernames will be replaced with immutable user IDs, and financial data will be protected for certain users. Learn more here.
  • Action Required: From early May, API users must include standardized condition details when creating or updating listings in certain coins category. Update your integration to stay compliant. Learn more here.
  • Size Standardization Update: Apparel & Footwear listings with non-standard, missing, or incomplete size information may be blocked or hidden starting July 2026. Normalization begins in June. Learn more here.
  • Action Required: A new Right of Withdrawal (ROW) return reason will be added to the getReturnDetails API for eligible EU returns. Update your integration so it can safely handle new/unknown return reason enum values without errors. Learn more here.

Due to regulatory requirements applicable to our EU/UK sellers, for certain APIs, developers need to add digital signatures to the respective HTTP call. The Key Management API creates keypairs that are required when creating digital signatures for the following APIs:

Note: For additional information about keypairs and creating Message Signatures, refer to Digital Signatures for APIs.

signing_key

Method NameHTTP MethodPathSummarySamples
createSigningKeyPOST/signing_keyCreates keypairs using the selected cipher.View createSigningKey - /signing_key
getSigningKeyGET/signing_key/{signing_key_id}Retrieves a specific keypair and metadata for a specified signing key ID associated with the application key making the call.View getSigningKey - /signing_key/{signing_key_id}
getSigningKeysGET/signing_keyRetrieve keypairs and metadata for all keypairs associated with the application key making the call.View getSigningKeys - /signing_key