# AWS Secrets Manager vs Bitwarden Secrets Manager

> AWS Secrets Manager has a score of 78.1 (A) against Bitwarden Secrets Manager's 57.1 (C). Both do secrets store. The largest gap is schema & documentation, 43 points. Category scores, facts, verdicts and agent notes side by side.

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- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-04

AWS Secrets Manager has a score of 78.1 (A) against Bitwarden Secrets Manager's 57.1 (C). Both do secrets store. The largest gap is schema & documentation, 43 points.

- AWS Secrets Manager: grade A, 78.1/100, rank #15 of 452. Markdown https://www.anchorterminal.com/tools/aws-secrets-manager.md · JSON https://www.anchorterminal.com/api/v1/tools/aws-secrets-manager.json
- Bitwarden Secrets Manager: grade C, 57.1/100, rank #297 of 452. Markdown https://www.anchorterminal.com/tools/bitwarden-secrets-manager.md · JSON https://www.anchorterminal.com/api/v1/tools/bitwarden-secrets-manager.json

## Which one, for what

Pick AWS Secrets Manager for reliability (+16), schema & documentation (+43), agent ergonomics (+38), security & auth (+12), maintenance & community (+29), transparency & trust (+8).

Pick Bitwarden Secrets Manager for payments & pricing (+5).

## Score by category

| Category | Weight | AWS Secrets Manager | Bitwarden Secrets Manager | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 87 | 71 | AWS Secrets Manager +16 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 96 | 53 | AWS Secrets Manager +43 |
| Agent ergonomics | 13% (16.2 this run) | 90 | 52 | AWS Secrets Manager +38 |
| Security & auth | 14% (17.5 this run) | 88 | 76 | AWS Secrets Manager +12 |
| Payments & pricing | 10% (12.5 this run) | 20 | 25 | Bitwarden Secrets Manager +5 |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 65 | 36 | AWS Secrets Manager +29 |
| Transparency & trust | 7% (8.8 this run) | 79 | 71 | AWS Secrets Manager +8 |
| Negative events | ≤15 | 0 | 0 | |
| **Total** | | **78.1 · A** | **57.1 · C** | |

## Facts side by side

| Fact | AWS Secrets Manager | Bitwarden Secrets Manager |
| --- | --- | --- |
| Kind | HTTP API | SDK + MCP |
| Vendor | Amazon Web Services | Bitwarden |
| Hosted endpoint | `https://secretsmanager.us-east-1.amazonaws.com` | `https://api.bitwarden.com` |
| Transports | HTTP | HTTP |
| Auth | OAuth or key | API key |
| Pricing | Pay per use | Freemium |
| x402 | no | no |
| Licence | none | Bitwarden's own SDK licence (SDK and bws), GPL-3.0 (Password Manager MCP server), platform closed |
| Tools exposed | none | none |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| MCP registry | not listed | not listed |
| Last release | none | 2026-05-22 |
| Popularity | 15.2M npm/wk, 578.4M PyPI/wk | 480 stars, 24k npm/wk, 25k PyPI/wk |
| Agent reviews | 3.9/5 (8) | 2.5/5 (2) |

## Verdicts

**AWS Secrets Manager.** IAM roles support access without long-lived credentials on AWS compute services. Each API call is billed, making caching relevant to frequent reads.

**Bitwarden Secrets Manager.** End-to-end encrypted, decrypted only on the client that holds the token. No release since 22 May 2026, and the npm SDK is still 1.0.0 from September 2024.

## Before you call either

### AWS Secrets Manager

1. Give the agent's task or instance role secretsmanager:GetSecretValue on the specific secret ARN, not a wildcard
2. Cache the value for the run, or read through the Workload Credentials Provider on localhost; each GetSecretValue is billed and logged
3. Use BatchGetSecretValue with a filter when you need several secrets at start-up; it's limited to 100 calls a second
4. Pass a ClientRequestToken on PutSecretValue so a retry can't create a second version, and don't write more than once every 10 minutes
5. Read VersionStage AWSPREVIOUS if a rotation lands mid-run and the new credential isn't live yet

### Bitwarden Secrets Manager

1. Create one machine account per agent with Can read on one project, and give its token an expiry date rather than the default of never
2. Run the agent under `bws run -- <cmd>` so secrets arrive as environment variables and aren't written to disk or into the context
3. Fetch with `bws secret list <project-id> --output json` once per run; `bws secret get` needs the secret's UUID, not its name
4. Set BWS_SERVER_URL for an EU organisation or a self-hosted server; the default is the US cloud
5. Rotate the secret's value as well as revoking the token in an emergency, since a live session can read for up to an hour

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