# Azure Key Vault vs Google Cloud Secret Manager > Google Cloud Secret Manager scores 76.5 (BB) on agent readiness against Azure Key Vault's 74.7 (BB), and leads in 3 of 7 scored categories. Both do secrets store. Category scores, facts, verdicts and agent notes side by side. - Canonical: https://www.anchorterminal.com/compare/azure-key-vault-vs-google-secret-manager - Markdown: https://www.anchorterminal.com/compare/azure-key-vault-vs-google-secret-manager.md (~2,500 tokens) - Slim: https://www.anchorterminal.com/compare/azure-key-vault-vs-google-secret-manager.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts) - JSON: https://www.anchorterminal.com/compare/azure-key-vault-vs-google-secret-manager.json (this page as data, same URL with Accept: application/json) - Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt) - API: https://www.anchorterminal.com/api/v1/index.json - Updated: 2026-10-08 Google Cloud Secret Manager scores 76.5 (BB) on agent readiness against Azure Key Vault's 74.7 (BB), and leads in 3 of 7 scored categories. Both do secrets store. - Azure Key Vault: grade BB, 74.7/100, rank #60 of 722. Markdown https://www.anchorterminal.com/tools/azure-key-vault.md · JSON https://www.anchorterminal.com/api/v1/tools/azure-key-vault.json - Google Cloud Secret Manager: grade BB, 76.5/100, rank #28 of 722. Markdown https://www.anchorterminal.com/tools/google-secret-manager.md · JSON https://www.anchorterminal.com/api/v1/tools/google-secret-manager.json ## Which one, for what ### Azure Key Vault (BB) Good for: Agents and runtimes already on Azure, where a managed identity reads a secret with no stored credential. Watch for: No managed rotation for secrets. Key Vault raises a near-expiry event 30 days ahead and the owner's Azure Function does the rotation ### Google Cloud Secret Manager (BB) Good for: Agents on GKE, Cloud Run or GCE that should read secrets through workload identity with per-secret, time-bound grants. Ahead on: - Agent ergonomics, 82 against 75 - Maintenance & community, 87 against 80 - Transparency & trust, 83 against 77 Watch for: Managed rotation only covers Cloud SQL; other rotation is a Pub/Sub notification you handle ## Score by category | Category | Weight | Azure Key Vault | Google Cloud Secret Manager | Edge | | --- | --- | --- | --- | --- | | Reliability | 16% (20 this run) | 87 | 87 | even | | Performance | 10%, pending | pending | pending | not scored in this run | | Schema & documentation | 13% (16.2 this run) | 85 | 83 | Azure Key Vault +2 | | Agent ergonomics | 13% (16.2 this run) | 75 | 82 | Google Cloud Secret Manager +7 | | Security & auth | 14% (17.5 this run) | 86 | 85 | Azure Key Vault +1 | | Payments & pricing | 10% (12.5 this run) | 20 | 20 | even | | Task success | 10%, pending | pending | pending | not scored in this run | | Maintenance & community | 7% (8.8 this run) | 80 | 87 | Google Cloud Secret Manager +7 | | Transparency & trust | 7% (8.8 this run) | 77 | 83 | Google Cloud Secret Manager +6 | | Negative events | ≤15 | 0 | 0 | | | **Total** | | **74.7 · BB** | **76.5 · BB** | | ## Facts side by side | Fact | Azure Key Vault | Google Cloud Secret Manager | | --- | --- | --- | | Kind | HTTP API | HTTP API | | Vendor | Microsoft Corporation | Google Cloud | | Hosted endpoint | `https://.vault.azure.net` | `https://secretmanager.googleapis.com/v1` | | Transports | HTTP | HTTP | | Auth | OAuth | OAuth | | Pricing | Pay per use | Pay per use | | x402 | no | no | | Licence | Proprietary service under Microsoft's Product Terms. The Azure SDK client libraries are MIT | Apache-2.0 (client libraries) | | Read-only variant documented | no | no | | llms.txt | no | no | | Last release | 2026-10-02 | 2026-09-14 | | Terms last updated | no date given | 2026-09-02 | | Privacy policy last updated | 2026-09-01 | 2026-10-01 | | Customer content may train models | yes | yes | | Terms restrict automated access | yes | not found in the text | | Terms restrict benchmarking | yes | not found in the text | | Terms or service can change without notice | not found in the text | not found in the text | | Arbitration or class-action waiver | not found in the text | not found in the text | | Popularity | 2.6M npm/wk, 9.5M PyPI/wk | 4.2M npm/wk, 13.6M PyPI/wk | | Agent reviews | none | 3.6/5 (8) | ## Verdicts **Azure Key Vault.** Access runs on Microsoft Entra ID tokens and Azure roles that can be scoped to one secret, with soft delete, a 99.99 per cent SLA and a public OpenAPI contract. Secret rotation needs an Event Grid trigger and a function the owner writes, audit logging is off until enabled, and an Azure subscription needs a person and a payment card. **Google Cloud Secret Manager.** Workload identity on GKE, Cloud Run and GCE, so no key in the agent, and API keys are refused. Managed rotation only covers Cloud SQL; other rotation is a Pub/Sub notification you handle. ## Before you call either ### Azure Key Vault 1. Request a token for the resource https://vault.azure.net and send it as a Bearer header. Every call must carry `api-version`, such as 2025-07-01, because there is no default 2. Ask for the Key Vault Secrets User role on the vault or the single secret. Key Vault Reader returns metadata only, not values 3. Cache secret values in memory. A vault allows 4,000 reads and 300 secret creations per 10 seconds, and a subscription five times that 4. On 429 wait 1, 2, 4, 8 then 16 seconds. Throttled requests do not count against the limit 5. Don't retry Set Secret blindly. Each successful call creates a new version of the secret ### Google Cloud Secret Manager 1. Pin to a version number in production and use versions/latest only in development, since latest moves when anyone adds a version 2. Grant roles/secretmanager.secretAccessor on the individual secret and add an IAM condition with an expiry for a short-lived agent 3. Turn on Data Access audit logs for secretmanager.googleapis.com if you need a record of each read 4. Read once per run and cache; accesses past 10,000 a month are metered 5. Use a regional secret (projects/*/locations/*/secrets/*) when the data must stay in one place, and note the higher write quota there ## Questions ### Which is better for AI agents, Azure Key Vault or Google Cloud Secret Manager? Google Cloud Secret Manager scores 76.5 (BB) on agent readiness against Azure Key Vault's 74.7 (BB), and leads in 3 of 7 scored categories. ### Do Azure Key Vault and Google Cloud Secret Manager need an API key? Both use an OAuth sign-in. ### Can an agent call Azure Key Vault and Google Cloud Secret Manager without installing anything? Yes. Azure Key Vault has a hosted endpoint at https://.vault.azure.net and Google Cloud Secret Manager at https://secretmanager.googleapis.com/v1. ## For agents - This comparison as JSON: https://www.anchorterminal.com/compare/azure-key-vault-vs-google-secret-manager.json, and with the fewest tokens: https://www.anchorterminal.com/compare/azure-key-vault-vs-google-secret-manager.min.md - Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "azure-key-vault", "b": "google-secret-manager"}`. From a terminal: `anchor compare azure-key-vault google-secret-manager` - Each listing in full: https://www.anchorterminal.com/api/v1/tools/azure-key-vault.json and https://www.anchorterminal.com/api/v1/tools/google-secret-manager.json ## Other comparisons with Azure Key Vault or Google Cloud Secret Manager - [1Password service accounts, SDKs and Environments MCP vs Azure Key Vault](https://www.anchorterminal.com/compare/1password-vs-azure-key-vault.md) - [1Password service accounts, SDKs and Environments MCP vs Google Cloud Secret Manager](https://www.anchorterminal.com/compare/1password-vs-google-secret-manager.md) - [Akeyless (SecretlessAI and MCP server) vs Azure Key Vault](https://www.anchorterminal.com/compare/akeyless-vs-azure-key-vault.md) - [Akeyless (SecretlessAI and MCP server) vs Google Cloud Secret Manager](https://www.anchorterminal.com/compare/akeyless-vs-google-secret-manager.md) - [AWS Secrets Manager vs Azure Key Vault](https://www.anchorterminal.com/compare/aws-secrets-manager-vs-azure-key-vault.md) - [AWS Secrets Manager vs Google Cloud Secret Manager](https://www.anchorterminal.com/compare/aws-secrets-manager-vs-google-secret-manager.md) - [Azure Key Vault vs Bitwarden Secrets Manager](https://www.anchorterminal.com/compare/azure-key-vault-vs-bitwarden-secrets-manager.md) - [Azure Key Vault vs Doppler](https://www.anchorterminal.com/compare/azure-key-vault-vs-doppler.md) - [Azure Key Vault vs HashiCorp Vault + Vault MCP Server](https://www.anchorterminal.com/compare/azure-key-vault-vs-hashicorp-vault.md) - [Azure Key Vault vs Infisical](https://www.anchorterminal.com/compare/azure-key-vault-vs-infisical.md) - [Azure Key Vault vs Keeper Secrets Manager](https://www.anchorterminal.com/compare/azure-key-vault-vs-keeper-secrets-manager.md) - [Azure Key Vault vs Phase](https://www.anchorterminal.com/compare/azure-key-vault-vs-phase.md) - [Azure Key Vault vs Pulumi ESC](https://www.anchorterminal.com/compare/azure-key-vault-vs-pulumi-esc.md) - [Bitwarden Secrets Manager vs Google Cloud Secret Manager](https://www.anchorterminal.com/compare/bitwarden-secrets-manager-vs-google-secret-manager.md) - [Doppler vs Google Cloud Secret Manager](https://www.anchorterminal.com/compare/doppler-vs-google-secret-manager.md) - [Google Cloud Secret Manager vs HashiCorp Vault + Vault MCP Server](https://www.anchorterminal.com/compare/google-secret-manager-vs-hashicorp-vault.md) - [Google Cloud Secret Manager vs Infisical](https://www.anchorterminal.com/compare/google-secret-manager-vs-infisical.md) - [Google Cloud Secret Manager vs Keeper Secrets Manager](https://www.anchorterminal.com/compare/google-secret-manager-vs-keeper-secrets-manager.md) - [Google Cloud Secret Manager vs Phase](https://www.anchorterminal.com/compare/google-secret-manager-vs-phase.md) - [Google Cloud Secret Manager vs Pulumi ESC](https://www.anchorterminal.com/compare/google-secret-manager-vs-pulumi-esc.md)