agentic-keyvault

A Cloudflare-native secrets manager with a CLI and an MCP server. Never lose an API key again.

agentic-keyvault is a small, self-hostable secrets store that runs entirely on Cloudflare Workers + D1. It gives you one source of truth for your API keys, tokens, and environment variables — one that you (and your AI coding agents) can read back, version, and rotate in a single place.

Why

AI coding agents increasingly generate and set secrets for you — random API keys, internal tokens, signing secrets — and push them straight into write-only encrypted stores (Cloudflare Worker secrets, Vercel env, etc.). Those stores never let you read the value back, so:

• The value is lost the moment it's set — you never saw it, you can't reuse it.
• Rotating a provider key (shown only once) means updating it in many places. Miss one and production breaks.

agentic-keyvault fixes this by being a store you own and can read from, designed for both humans (CLI) and agents (MCP):

• Projects group your secrets. A project can optionally bind to a GitHub repo origin, so akv env pull inside a repo just works.
• General (repo-less) secrets live under a project too.
• Every write is versioned and never deleted — nothing is ever lost.
• Rotate once, read everywhere.

Architecture

          ┌──────────────┐        ┌──────────────┐
  human → │   CLI (akv)  │        │  MCP server  │ ← AI agent
          └──────┬───────┘        └──────┬───────┘
                 │  bearer token (HTTPS)  │
                 └───────────┬────────────┘
                             ▼
                 ┌───────────────────────┐
                 │  Cloudflare Worker     │  REST API + envelope crypto
                 │  (Hono)                │
                 └───────────┬───────────┘
                             ▼
                 ┌───────────────────────┐
                 │  Cloudflare D1 (SQLite)│  encrypted secret versions + metadata
                 └───────────────────────┘

• Storage: Cloudflare D1. Queryable, transactional, versioned. Secret values are stored only as ciphertext.
• Encryption: envelope encryption with AES-256-GCM. A master key (KEK) lives as a Worker secret; each secret version has its own random data key (DEK) that is wrapped by the KEK. A D1/backup leak alone reveals nothing.
• Auth: opaque bearer tokens, stored SHA-256 hashed. Admin token plus project-scoped read-only / read-write tokens for agents.

See docs/ARCHITECTURE.md for the full design and threat model.

Packages

Package	Description
packages/worker	Cloudflare Worker — REST API, envelope crypto, D1 access
packages/cli	akv command-line client
packages/mcp	stdio MCP server for AI agents
packages/shared	shared API client + types

Status

Early development. Built in phases — see docs/ARCHITECTURE.md.

License

MIT © Hitesh Sisara