passbolt-mcp (zai-one/passbolt-mcp) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 9 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Emerging
74/100

passbolt-mcp

Passbolt for AI assistants: search your vault, check local setup and use credentials through fixed handlers without returning passwords.

→ zai-one/passbolt-mcp· listed on github_repo_search

Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

How we verified

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Who stands behind it

zai-one

Source: github_repo_search

Is this your MCP?

Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →

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Install from

GitHub

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
// tools this server exposes9 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

passbolt_local_diagnostics

Check this binding's local key usability and policy, without vault or destination requests.

passbolt_status

Probe real Passbolt auth and a bounded v5 decrypt canary without returning secrets.

passbolt_search

Search only v5 metadata decrypted inside server custody.

passbolt_select

Bind a safe metadata selection to this principal and exact target URL.

passbolt_create_resource

Create a v5 resource from server-generated or sealed server ingress.

passbolt_update_resource

Approval-gated v5 resource update with optimistic concurrency.

passbolt_create_folder

Create one folder idempotently; group refs are UUID-only.

passbolt_share_resource

Approval-gated share; group/user references are UUID-only.

passbolt_use_secret

Deliver a selected secret to one registered server-local sink only.

// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
configPASSBOLT_SECRET_FILE
configPASSBOLT_BINDINGS_FILE
configPASSBOLT_MCP_PUBLIC_KEY_FILE
configPASSBOLT_STATE_PATH
configPASSBOLT_ACCOUNT_ID
configPASSBOLT_LOCAL_PRINCIPAL
configPASSBOLT_MCP_ISSUER
configPASSBOLT_MCP_AUDIENCE
configPASSBOLT_LOCAL_SCOPES
configPASSBOLT_RATE_LIMIT
configPASSBOLT_SELECTION_TTL
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

9/9 tools missing one or more hints — passbolt_local_diagnostics (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); passbolt_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); passbolt_search (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +6 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tool test coverage

7/9 tools referenced in tests (78%)

Write tests that reference each tool by name so every tool has at least one test.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 3 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/zai-one/passbolt-mcp)](https://m8ven.ai/mcp/zai-one/passbolt-mcp)
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commit: e6eeef1e70a4dcb60c61ed4dffa95ced004e9452
code hash: 72a906c7f198e8967fd8ba79f8884b6ac0f62ce4aac5d2530fbf8be71915292c
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