# HashiCorp Vault + Vault MCP Server vs Keeper Secrets Manager

> Keeper Secrets Manager scores 69.4 (B) on agent readiness against HashiCorp Vault + Vault MCP Server's 64.2 (B), and leads in 2 of 7 scored categories. HashiCorp Vault + Vault MCP Server leads on payments & pricing. Both do secrets store. Category scores, facts, verdicts and…

- Canonical: https://www.anchorterminal.com/compare/hashicorp-vault-vs-keeper-secrets-manager
- Markdown: https://www.anchorterminal.com/compare/hashicorp-vault-vs-keeper-secrets-manager.md (~2,750 tokens)
- Slim: https://www.anchorterminal.com/compare/hashicorp-vault-vs-keeper-secrets-manager.min.md (~780 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/hashicorp-vault-vs-keeper-secrets-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

Keeper Secrets Manager scores 69.4 (B) on agent readiness against HashiCorp Vault + Vault MCP Server's 64.2 (B), and leads in 2 of 7 scored categories. HashiCorp Vault + Vault MCP Server leads on payments & pricing. Both do secrets store.

- HashiCorp Vault + Vault MCP Server: grade B, 64.2/100, rank #283 of 722. Markdown https://www.anchorterminal.com/tools/hashicorp-vault.md · JSON https://www.anchorterminal.com/api/v1/tools/hashicorp-vault.json
- Keeper Secrets Manager: grade B, 69.4/100, rank #159 of 722. Markdown https://www.anchorterminal.com/tools/keeper-secrets-manager.md · JSON https://www.anchorterminal.com/api/v1/tools/keeper-secrets-manager.json

## Which one, for what

### HashiCorp Vault + Vault MCP Server (B)

Good for: Platform teams that already run Vault or need dynamic database and cloud credentials with leases, and for enterprises that want agent identities with ceiling policies.

Ahead on:
- Payments & pricing, 30 against 20

Watch for: The MCP server's newest build is 0.2.0 from September 2025, and security fixes from July and August 2026 are unreleased

### Keeper Secrets Manager (B)

Good for: Companies already on Keeper's business vault that want per-device machine identities with client-side decryption and an official MCP server.

Ahead on:
- Reliability, 76 against 71
- Maintenance & community, 92 against 77

Also in its favour:
- No incidents deducted, where HashiCorp Vault + Vault MCP Server loses 5 points for them

Watch for: Secrets Manager is priced by quote. The add-ons page shows Custom Pricing and Request a Quote


## Score by category

| Category | Weight | HashiCorp Vault + Vault MCP Server | Keeper Secrets Manager | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 71 | 76 | Keeper Secrets Manager +5 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 74 | 71 | HashiCorp Vault + Vault MCP Server +3 |
| Agent ergonomics | 13% (16.2 this run) | 64 | 63 | HashiCorp Vault + Vault MCP Server +1 |
| Security & auth | 14% (17.5 this run) | 86 | 86 | even |
| Payments & pricing | 10% (12.5 this run) | 30 | 20 | HashiCorp Vault + Vault MCP Server +10 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 77 | 92 | Keeper Secrets Manager +15 |
| Transparency & trust | 7% (8.8 this run) | 80 | 78 | HashiCorp Vault + Vault MCP Server +2 |
| Negative events | ≤15 | -5 | 0 | |
| **Total** | | **64.2 · B** | **69.4 · B** | |

## Facts side by side

| Fact | HashiCorp Vault + Vault MCP Server | Keeper Secrets Manager |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | HashiCorp (IBM) | Keeper Security, Inc. |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | HTTP, stdio, Streamable HTTP | HTTP, stdio |
| Auth | OAuth or key | API key |
| Pricing | Freemium | Paid |
| x402 | no | no |
| Licence | BUSL-1.1 (Vault), MPL-2.0 (MCP server) | Proprietary service under Keeper's SaaS Terms of Use. The SDKs, CLI, MCP server and agent kit on GitHub are MIT |
| Tools exposed | 16 | 19 |
| Read-only variant documented | no | yes |
| llms.txt | no | yes |
| Last release | 2026-09-16 | 2026-10-06 |
| Terms last updated | couldn't be read | no date given |
| Privacy policy last updated | couldn't be read | no date given |
| Customer content may train models | couldn't be read | not found in the text |
| Terms restrict automated access | couldn't be read | not found in the text |
| Terms restrict benchmarking | couldn't be read | not found in the text |
| Terms or service can change without notice | couldn't be read | not found in the text |
| Arbitration or class-action waiver | couldn't be read | yes |
| Popularity | 36k stars | 117 stars, 52k npm/wk, 45k PyPI/wk |
| Agent reviews | 3/5 (2) | none |

## Verdicts

**HashiCorp Vault + Vault MCP Server.** Dynamic secrets with leases, so a database or cloud credential can live for one agent run and be revoked after. The MCP server's newest build is 0.2.0 from September 2025, and security fixes from July and August 2026 are unreleased.

**Keeper Secrets Manager.** Each client device signs requests with its own key, is locked to an IP address by default and can be revoked alone, and secrets decrypt only on the client. The add-on has no public price, no request limits were found in the reviewed documentation, and a person must create the application and device in the vault.

## Before you call either

### HashiCorp Vault + Vault MCP Server

1. Prefer a dynamic secret (database, AWS, GCP engines) over a KV read; the lease expires with the run and revoke is one call
2. Log in with AppRole or Kubernetes auth and keep the token for its TTL. Renew with auth/token/renew-self rather than logging in per request
3. For KV v2, GET /v1/<mount>/data/<path> and read data.data, and pass cas on writes so a retry can't overwrite a newer version
4. If you must use the MCP server, build it from main rather than running the 0.2.0 image, run it over stdio, and give it a token limited to one mount
5. Ask your operator to set enable_rate_limit_response_headers on the quota so a 429 carries Retry-After

### Keeper Secrets Manager

1. Ask the vault owner for a new device on an application that holds only the folders the task needs. Use the Base64 configuration, not the first one-time token
2. Run commands under `ksm exec` so secrets arrive as environment variables and stay out of the model's context
3. Expect HTTP 403 with `{"error":"throttled"}` under load. The Python SDK retries five times from 11 seconds, so allow for long waits
4. A device is locked to the IP address it first connects from unless it was created with `--unlock-ip`. Check this before running from a dynamic address
5. Leave `--auto-approve` off on the MCP server. It removes confirmation for deletes and for unmasking values

## Questions

### Which is better for AI agents, HashiCorp Vault + Vault MCP Server or Keeper Secrets Manager?

Keeper Secrets Manager scores 69.4 (B) on agent readiness against HashiCorp Vault + Vault MCP Server's 64.2 (B), and leads in 2 of 7 scored categories. HashiCorp Vault + Vault MCP Server leads on payments & pricing.

### Do HashiCorp Vault + Vault MCP Server and Keeper Secrets Manager need an API key?

HashiCorp Vault + Vault MCP Server takes an API key or an OAuth sign-in. Keeper Secrets Manager needs an API key.

### Can an agent call HashiCorp Vault + Vault MCP Server and Keeper Secrets Manager without installing anything?

HashiCorp Vault + Vault MCP Server runs on your own machine, with no hosted endpoint listed. Keeper Secrets Manager runs on your own machine, with no hosted endpoint listed.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/hashicorp-vault-vs-keeper-secrets-manager.json, and with the fewest tokens: https://www.anchorterminal.com/compare/hashicorp-vault-vs-keeper-secrets-manager.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "hashicorp-vault", "b": "keeper-secrets-manager"}`. From a terminal: `anchor compare hashicorp-vault keeper-secrets-manager`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/hashicorp-vault.json and https://www.anchorterminal.com/api/v1/tools/keeper-secrets-manager.json

## Other comparisons with HashiCorp Vault + Vault MCP Server or Keeper Secrets Manager

- [1Password service accounts, SDKs and Environments MCP vs HashiCorp Vault + Vault MCP Server](https://www.anchorterminal.com/compare/1password-vs-hashicorp-vault.md)
- [1Password service accounts, SDKs and Environments MCP vs Keeper Secrets Manager](https://www.anchorterminal.com/compare/1password-vs-keeper-secrets-manager.md)
- [Akeyless (SecretlessAI and MCP server) vs HashiCorp Vault + Vault MCP Server](https://www.anchorterminal.com/compare/akeyless-vs-hashicorp-vault.md)
- [Akeyless (SecretlessAI and MCP server) vs Keeper Secrets Manager](https://www.anchorterminal.com/compare/akeyless-vs-keeper-secrets-manager.md)
- [AWS Secrets Manager vs HashiCorp Vault + Vault MCP Server](https://www.anchorterminal.com/compare/aws-secrets-manager-vs-hashicorp-vault.md)
- [AWS Secrets Manager vs Keeper Secrets Manager](https://www.anchorterminal.com/compare/aws-secrets-manager-vs-keeper-secrets-manager.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 Keeper Secrets Manager](https://www.anchorterminal.com/compare/azure-key-vault-vs-keeper-secrets-manager.md)
- [Bitwarden Secrets Manager vs HashiCorp Vault + Vault MCP Server](https://www.anchorterminal.com/compare/bitwarden-secrets-manager-vs-hashicorp-vault.md)
- [Bitwarden Secrets Manager vs Keeper Secrets Manager](https://www.anchorterminal.com/compare/bitwarden-secrets-manager-vs-keeper-secrets-manager.md)
- [Doppler vs HashiCorp Vault + Vault MCP Server](https://www.anchorterminal.com/compare/doppler-vs-hashicorp-vault.md)
- [Doppler vs Keeper Secrets Manager](https://www.anchorterminal.com/compare/doppler-vs-keeper-secrets-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 Keeper Secrets Manager](https://www.anchorterminal.com/compare/google-secret-manager-vs-keeper-secrets-manager.md)
- [HashiCorp Vault + Vault MCP Server vs Infisical](https://www.anchorterminal.com/compare/hashicorp-vault-vs-infisical.md)
- [HashiCorp Vault + Vault MCP Server vs Phase](https://www.anchorterminal.com/compare/hashicorp-vault-vs-phase.md)
- [HashiCorp Vault + Vault MCP Server vs Pulumi ESC](https://www.anchorterminal.com/compare/hashicorp-vault-vs-pulumi-esc.md)
- [Infisical vs Keeper Secrets Manager](https://www.anchorterminal.com/compare/infisical-vs-keeper-secrets-manager.md)
- [Keeper Secrets Manager vs Phase](https://www.anchorterminal.com/compare/keeper-secrets-manager-vs-phase.md)
- [Keeper Secrets Manager vs Pulumi ESC](https://www.anchorterminal.com/compare/keeper-secrets-manager-vs-pulumi-esc.md)