Azure Key Vault

• Secrets Management: This service can be used to securely store & control access to passwords, certificates , API Keys & other secrets
• Key Management: This can be used as Key Management Solution where it makes it easy to create & control the encryption keys used to encrypt your data
• Certificate Management: This lets you easily provision, manage & deploy public & private TLS/SSL Certificates.
• Refer Here for Azure Key Vault Documentation
• Create a azure key valut
• Pricing: Refer Here
• Using Azure Key Management from
  • Python Refer Here
  • Java Refer Here
  • .net Refer Here
  • Node Js Refer Here
  • Rest API Refer Here