A free tool that swaps out your .env secrets for harmless placeholders on disk, so an AI coding assistant reading your project files never sees a real password or API key.
github.com
Alternatives to
AgentSecrets
Best alternatives to AgentSecrets in 2026
Most 'AI agent has an API key' setups load that key straight into the agent's memory or environment, which means a prompt injection attack or a bug in the agent's reasoning can potentially expose it. AgentSecrets removes the key from that equation entirely: the agent only ever references a credential by name, and a local proxy fills in the real value at the network level, invisible to the agent itself. AgentSecrets runs as a local loopback HTTP proxy. An agent workflow references a credential like GITHUB_TOKEN by name only; the proxy intercepts the outbound request, fetches the real value from the OS keychain, and injects it into the request header at the transport layer — the agent process only ever sees the final API response, never the raw key. It supports six different auth injection styles (bearer, header, query, basic, JSON body, form field), uses X25519 key exchange with AES-256-GCM encryption, keeps a SHA-256 audit trail, and ships MCP servers for Claude and Cursor plus OpenClaw support and a Python SDK. It's free, open-source, and MIT-licensed.
Quick comparison of AgentSecrets alternatives
| # | Tool | Best for | Price |
|---|---|---|---|
| 1 | Développeurs utilisant des assistants de code IA (Claude Code, Copilot, Cursor) voulant protéger leurs fichiers .env | — | |
| 2 | Développeurs utilisant des assistants de code IA (Claude Code, etc.) et voulant éviter l'exposition de secrets en clair | — | |
| 3 | Développeurs | — | |
| 4 | Développeurs | — | |
| 5 | Grand public | — | |
| 6 | Professionnels et passionnés de technologie | — |
#1
- ✓ Simple, targeted fix: symbolic references instead of real .env values
- ✓ AES-256-GCM + Argon2id, secrets never touch disk in plaintext
#2
A free secrets manager built for the AI-coding-assistant era, designed so tools like Claude Code can use your API keys without ever actually reading the plaintext value.
github.com
- ✓ MCP integration keeps secrets out of the AI agent's context entirely
- ✓ AES-256-GCM + Argon2id encryption, fully local
FAQ about AgentSecrets alternatives
- What is the best alternative to AgentSecrets in 2026?
- Based on our selection, Enject is the best alternative to AgentSecrets in 2026. A free tool that swaps out your .env secrets for harmless placeholders on disk, so an AI coding assistant reading your project files never sees a real password or API key.. See our full ranking above to compare all options.
- Is AgentSecrets free?
- AgentSecrets is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to AgentSecrets are there?
- mySelectas has listed 6 alternatives to AgentSecrets in the Security & Privacy category. Our selection is updated regularly to include the best options available.