opgen-mcp-server

An MCP server that exposes tools for generating passwords/phrases (character-based and word-based) and copies the generated password to the clipboard.

Evaluated Apr 04, 2026 (16d ago)
Repo ↗ Security mcp password-generation clipboard go security-utility
⚙ Agent Friendliness
38
/ 100
Can an agent use this?
🔒 Security
20
/ 100
Is it safe for agents?
⚡ Reliability
30
/ 100
Does it work consistently?

Score Breakdown

⚙ Agent Friendliness

MCP Quality
70
Documentation
55
Error Messages
0
Auth Simplicity
30
Rate Limits
10

🔒 Security

TLS Enforcement
10
Auth Strength
10
Scope Granularity
0
Dep. Hygiene
50
Secret Handling
40

The tool generates passwords and copies them to the clipboard, which increases exposure risk (clipboard can be read by other processes/users). The provided docs include no details on TLS, auth, audit logging, or secure RNG practices; thus security-relevant guarantees cannot be confirmed from the README.

⚡ Reliability

Uptime/SLA
0
Version Stability
50
Breaking Changes
40
Error Recovery
30
AF Security Reliability

Best When

You want an agent-callable password generator with simple local deployment (Go) and clipboard output.

Avoid When

You cannot allow clipboard writes (e.g., locked-down systems, high security contexts where clipboard exfiltration is a concern) or you need enterprise policy enforcement/auditing.

Use Cases

  • Generate strong random passwords with configurable length and character sets
  • Create passphrases from word lists or syllables with configurable separators and capitalization
  • Use password generation via an MCP-capable agent/workflow

Not For

  • Managing existing credentials/password vaults
  • Decrypting/storing sensitive secrets (it only generates and copies to clipboard per README)
  • High-assurance security workflows that require audit logs, policies, or external secret management

Interface

REST API
No
GraphQL
No
gRPC
No
MCP Server
Yes
SDK
No
Webhooks
No

Authentication

OAuth: No Scopes: No

No authentication/authorization details are described in the provided README.

Pricing

Free tier: No
Requires CC: No

No pricing information provided (appears to be a self-hosted Go tool).

Agent Metadata

Pagination
none
Idempotent
False
Retry Guidance
Not documented

Known Gotchas

  • Generated passwords are copied to clipboard; agents should be aware of side effects and potential clipboard access policies.
  • No stated rate-limit or throttling behavior for MCP tools in the provided documentation.
  • No authentication details—if required by implementation, agents may fail without guidance.

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Scores are editorial opinions as of 2026-04-04.

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