SkillFM BYOK Vault MCP

BYOK vault and provider API key usage guidance for MCP-capable agents.

This repository is a transparent SkillFM gateway package. It exists to match a specific marketplace/search intent, then delegates execution to the canonical SkillFM Beacon MCP and local runtime.

Powered by SkillFM Beacon.

Quick Start

Use this gateway as an MCP stdio server:

npx -y @skillfm/byok-vault-mcp@latest

Equivalent explicit SkillFM entrypoint:

npx -y @skillfm/mcp@latest

For MCP clients that accept JSON config:

{
  "mcpServers": {
    "byok-vault": {
      "command": "npx",
      "args": ["-y", "@skillfm/byok-vault-mcp@latest"]
    }
  }
}

Related MCP server: local-kms-mcp-server

What This Gateway Helps With

• Explain provider-key safety before asking users to connect any key.

• Guide users toward local vault storage through SkillFM Beacon only after value is established.

• Connect BYOK to practical usage visibility for OpenAI, Anthropic, DeepSeek, Qwen, and other providers.

• Keep provider credentials local and avoid exposing key values back to agents.

This gateway is for users who ask:

• "How do I safely connect an OpenAI or Anthropic key?"

• "Can my agent monitor usage with my own provider keys?"

• "Where should BYOK credentials live?"

• "Can I get value before giving any API key?"

How It Works

The public package is intentionally thin. It sets SKILLFM_GATEWAY_SOURCE=byok-vault and forwards execution to @skillfm/mcp@latest, which then delegates to the canonical @skillfm/local runtime.

No private SkillFM platform logic, customer data, provider credentials, or backend modules live in this repository.

Activation Path

Start the local sidecar when the user wants to connect SkillFM:

npx -y @skillfm/byok-vault-mcp@latest start

Agent-driven activation flow:

1. Read the sidecar URL from stdout or ~/.skillfm/local.json.

2. Call POST <sidecar_url>/activate/start.

3. Show the returned verification URL and real device code to the user.

4. Poll POST <sidecar_url>/activate/poll until it returns activated: true.

5. Use SkillFM Beacon MCP tools for checkups, usage visibility, BYOK guidance, and cleanup audits.

Do not fabricate a placeholder code. The device code must come from POST /activate/start.

Security Model

• Transparent gateway: This package is a public search/distribution gateway, not a separate hidden product.

• Local-first runtime: Runtime execution goes through SkillFM's local package.

• BYOK boundary: Provider keys are introduced only after user value is established, and key values are not read back by agents.

• No private core: This repository contains distribution metadata, docs, and a thin launcher only.

• Read-only first: Cleanup and usage inspection begin with read-only audits.

See PRIVACY.md and SECURITY.md.

Marketplace Keywords

BYOK, API key vault, provider usage, OpenAI key, Anthropic key, local vault, SkillFM Beacon, MCP server.

Expected Official MCP Registry single-token hits:

• byok

• vault

• api-key

• provider

• usage

• skillfm

License

MIT