Costco
OpenID Configuration
https://login.costco.com/.well-known/openid-configuration
OAuth 2.0 Authorization Server Metadata
https://login.costco.com/.well-known/oauth-authorization-server
JWKS URI
https://login.costco.com/pf/JWKS
Active Keys
| KID | Use | Alg/Crv | Key Length | Observed |
|---|---|---|---|---|
| b4PYaDhWRcZL2TUupULatHZBNn0 | enc | P-256 | 256 | 2026-09-04 |
| kGakUutN6e_JFOmg9_GUFjQbIMU_RS256 | sig | RS256 | 2048 | 2026-09-04 |
| AZEenakwRVGh60h6Cs3I7XUaatM | sig | P-384 | 384 | 2026-09-04 |
| ccBerZGHqMdTuCh3Q3LImmndWDo | sig | P-256 | 256 | 2026-09-04 |
| Fbp59p51berG7iw6uLu-Z8pfRiI | enc | P-384 | 384 | 2026-09-04 |
| QqUW_gzjA2ZtjPon6pTThHfBJZY | sig | 2048 | 2026-09-04 | |
| QqUW_gzjA2ZtjPon6pTThHfBJZY_RS256 | sig | RS256 | 2048 | 2026-09-04 |
| UJYk8f4wxmeCEHLkb5flKcvOP5A | enc | P-521 | 521 | 2026-09-04 |
| umBHPVW0sDithdQDeX4f8DVKtaw | sig | P-521 | 521 | 2026-09-04 |
| tT97-7IdbC_VMmTfl5bd0T15eOo | sig | P-521 | 521 | 2026-09-04 |
| C3-1Ll92bqbqWB7Dw6bnlbt5ncs | sig | P-384 | 384 | 2026-09-04 |
| foZSzOaNeIymCpXL5ESu3cGqi9E | sig | P-256 | 256 | 2026-09-04 |
| kGakUutN6e_JFOmg9_GUFjQbIMU | sig | 2048 | 2026-09-04 | |
| 1isZK8g4X7VFBWu59gK4dpZWw-U | enc | 2048 | 2026-09-04 | |
| pwB1cVZJogmcbNAShFFAOKYrVtw | sig | P-521 | 521 | 2026-09-03 |
| efI8f_ssnhAw33gYno43ierqJHs | sig | P-256 | 256 | 2026-09-03 |
| ukacxp_2ENTvNIo_vE4fndREI4c | sig | 2048 | 2026-09-03 | |
| ukacxp_2ENTvNIo_vE4fndREI4c_RS256 | sig | RS256 | 2048 | 2026-09-03 |
| 5E-su0oMl0xhbuDGsgEXQEbLMMs | sig | P-384 | 384 | 2026-09-03 |
Recently Deactivated Keys
(Most recent 10 records shown)
| KID | Use | Alg/Crv | Key Length | Observed |
|---|---|---|---|---|
| xtz9OFynoSn3r2h9E_e8gqrjzeQ | sig | P-384 | 384 | 2026-09-03 to 2026-09-04 (0 days) |
| LTlXKDVV6DcreTFOsBOuWtZjCAQ | enc | P-256 | 256 | 2026-09-03 to 2026-09-04 (0 days) |
| d43hypzMRcEFss3WMKiPPTkxkhc | sig | 2048 | 2026-09-02 to 2026-09-04 (2 days) | |
| d43hypzMRcEFss3WMKiPPTkxkhc_RS256 | sig | RS256 | 2048 | 2026-09-02 to 2026-09-04 (2 days) |
| Z7EZzM6Xp9VXBGdMWjRLTWSzVLI | sig | P-521 | 521 | 2026-09-03 to 2026-09-04 (0 days) |
| m6IU7pNOHGzPduonp1qFty-vKN4 | enc | 2048 | 2026-09-03 to 2026-09-04 (0 days) | |
| VNMNd4V520nuhx-39IjzeUl2p4Y | sig | P-384 | 384 | 2026-09-02 to 2026-09-04 (2 days) |
| zIN-y9Vrx_SSM_EtgIW-CWvsxUo | enc | P-521 | 521 | 2026-09-03 to 2026-09-04 (0 days) |
| mjM4_6sofhvXxNvkhC3DGja0SG4 | sig | 2048 | 2026-09-03 to 2026-09-04 (0 days) | |
| mjM4_6sofhvXxNvkhC3DGja0SG4_RS256 | sig | RS256 | 2048 | 2026-09-03 to 2026-09-04 (0 days) |