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PopNx MCPMCP servers for people who use AI · explained in plain words

Agentvault

by bch1212version 0.1.0i★ 0iRuns on your computer
Registry nameio.github.bch1212/agentvault

How to install

What it does

Credential vault for AI agents — Fernet-encrypted keys, per-agent budgets, audit logs.

  • Connects Runs on your computer
  • Account or key Needs AGENTVAULT_API_URL, AGENTVAULT_AGENT_KEY
  • Category Developer tools

Install

Pick the AI app you use, then copy the settings.

Passed 2/3 checks · Runs on your computer · ✓ Commands checked Nov 13, 2026

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a Agentvault key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a Agentvault key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Open the Claude desktop app’s settings file

    SettingsDeveloperEdit Config

  4. Paste these settings and save the file

    {
      "mcpServers": {
        "agentvault": {
          "command": "npx",
          "args": [
            "-y",
            "agentvault-mcp"
          ],
          "env": {
            "AGENTVAULT_API_URL": "your-value",
            "AGENTVAULT_AGENT_KEY": "your-value"
          }
        }
      }
    }

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Quit Claude and open it again

  6. Try it

    Use Agentvault and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using Agentvault or shows a Agentvault tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect Agentvault yet

Agentvault runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect Agentvault

  • You need a Agentvault key (create it on the maker’s site) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
  • You need a Agentvault key (create it on the maker’s site) · Install Node.js on your computer first (one time)
  • You need a Agentvault key (create it on the maker’s site) · Install Node.js on your computer first (one time)
  • You need a Agentvault key (create it on the maker’s site) · Install Node.js on your computer first (one time)

B · Others in Developer tools that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Works with Claude Code, with some setup first

You need a Agentvault key (create it on the maker’s site) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a Agentvault key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  4. Paste this command and press Enter

    claude mcp add --scope user agentvault --env AGENTVAULT_API_URL=your-value --env AGENTVAULT_AGENT_KEY=your-value -- npx -y agentvault-mcp

    Replace “your-value” with your key before pressing Enter

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Type /mcp in Claude Code

    You should see Agentvault listed as connected

  6. Try it

    Use Agentvault and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using Agentvault or shows a Agentvault tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a Agentvault key (create it on the maker’s site) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a Agentvault key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  4. Fill in your key

    In the Agentvault settings, AGENTVAULT_API_URL, AGENTVAULT_AGENT_KEY is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Open the AI chat in Cursor in Agent mode

  6. Try it

    Use Agentvault and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using Agentvault or shows a Agentvault tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a Agentvault key (create it on the maker’s site) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a Agentvault key

    Open the maker’s site, sign up and create an API key for the next step. Check the maker’s site for pricing and free plans.

    How to get a key is in the maker’s README below

  3. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  4. Fill in your key

    In the Agentvault settings, AGENTVAULT_API_URL, AGENTVAULT_AGENT_KEY is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Open the AI chat in VS Code in Agent mode

  6. Try it

    Use Agentvault and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using Agentvault or shows a Agentvault tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use Agentvault💬 Discussion →
For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add --scope user agentvault --env AGENTVAULT_API_URL=your-value --env AGENTVAULT_AGENT_KEY=your-value -- npx -y agentvault-mcp

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "agentvault": {
      "command": "npx",
      "args": [
        "-y",
        "agentvault-mcp"
      ],
      "env": {
        "AGENTVAULT_API_URL": "your-value",
        "AGENTVAULT_AGENT_KEY": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "agentvault": {
      "command": "npx",
      "args": [
        "-y",
        "agentvault-mcp"
      ],
      "env": {
        "AGENTVAULT_API_URL": "your-value",
        "AGENTVAULT_AGENT_KEY": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "agentvault": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "agentvault-mcp"
      ],
      "env": {
        "AGENTVAULT_API_URL": "your-value",
        "AGENTVAULT_AGENT_KEY": "your-value"
      }
    }
  }
}

Values you fill in

  • AGENTVAULT_API_URL required env
    Base URL of your AgentVault deployment
  • AGENTVAULT_AGENT_KEY secret required env
    Your avk_ agent API key

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

At a glance

Downloads per weeki
41/wk
Connection
Runs on your computer
Latest versioni
0.1.0
Published to registryi
May 13, 2026
Code last changedi
Jun 6, 2026
Maker
bch1212
Packages
npm: agentvault-mcp
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

All apps, with pros and cons →

Related guides

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 13, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account bch1212, which owns the repo

  • ✕ Fail

    Still maintained

    No code changes for over a year, or the repo is archived

  • ✓ Pass

    Has a licence

    Uses MIT

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

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Posts here are written by users, not the PopNx team.

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User reviews

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Compared with others in Developer toolsi

  • More stars than 0% of the other 5848 servers in this category
  • Published to the registry more recently than 11% of the other 5848 servers in this category
  • Basic checks equal to or better than 44% of the other 5848 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is Agentvault safe?

It passed 2 of 3 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: AGENTVAULT_API_URL, AGENTVAULT_AGENT_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed 5 months ago, and the latest version (0.1.0) reached the registry 6 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: REA, GitHub, Serena MCP: the IDE for your agent

Others in the same category

Servers in the same category from other makers, sorted by stars.

Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

REA

Reverse engineer anything from your terminal or agent with one CLI and MCP server.

by morlutoWidely used↓ 388.7K/wk★ 455.4KUpdated yesterday

Runs on your computer

GitHub

GitHub’s official server lets AI read and manage code, issues and pull requests in your account. Use GitHub’s hosted version or run it locally with Docker.

by githubWidely used★ 34.4KUpdated 10 days ago

Computer or cloud

Serena MCP: the IDE for your agent

A powerful toolkit for coding, providing semantic retrieval and editing capabilities.

by oraiosWidely used↓ 35.2K/wk★ 31.3KUpdated 6 months ago

Runs on your computer

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

AgentVault

AI-native credential management for autonomous agents. Store API keys with column-level Fernet encryption, issue unique avk_ keys to registered agent identities, proxy decrypted values with TTL, enforce per-agent spending budgets, log every access, and expose everything as an MCP server.

  • Live API: https://agentvault-api-production.up.railway.app
  • Docs: https://agentvault-api-production.up.railway.app/docs
  • Status: Production (Railway + Postgres + Stripe live)

Why

Autonomous agents need API keys to do anything useful — Stripe, OpenAI, SendGrid, your own internal services. Three bad options today:

  1. Hardcode in the agent prompt or config. Leaks in logs, can't rotate, no audit trail.
  2. Pass via env vars at spawn. No per-agent isolation, no budget controls, no revocation without redeploy.
  3. Roll your own vault. Real work — encryption at rest *and* in transit, audit logs, key rotation, budget tracking.

AgentVault is option 3 as a service. One avk_ key per agent. Permission patterns (["stripe_*", "openai_*"]). Daily/monthly spending caps. Full access log. MCP-native so agents can vault.get_credential("stripe_key") and get a TTL-bound decrypted value back.

Quickstart

Direct HTTP
import httpx

resp = httpx.post( "https://agentvault-api-production.up.railway.app/api/v1/vault/get/stripe_key", headers={"X-Agent-Key": "avk_..."}, params={"cost": 0.05}, ) stripe_key = resp.json()["value"]

MCP (Claude Desktop / Cursor / Cline)
{

"mcpServers": { "agentvault": { "command": "python", "args": ["-m", "mcp_server"], "env": { "AGENTVAULT_API_URL": "https://agentvault-api-production.up.railway.app", "AGENTVAULT_AGENT_KEY": "avk_..." } } } }

Then in Claude: vault.get_credential("stripe_key") returns the decrypted value.

How it works

  • Column-level Fernet encryption — credentials are encrypted with VAULT_ENCRYPTION_KEY *before* they hit the database. Stronger than at-rest disk encryption alone.
  • `avk_` agent keys — SHA-256 hashed at rest, never stored plaintext. Recognizable prefix like sk_live_ / whsec_.
  • Permission patterns — ["stripe_*", "openai_*"] scopes an agent without a full policy engine. fnmatch-based.
  • Budget enforcement — daily and monthly caps per agent. /vault/get?cost=0.05 records the spend; 429 once the cap is hit.
  • Audit log — every access (success or denied) goes into credential_access_logs with IP, user-agent, error reason.
  • MCP server — mcp_server/ exposes list_credentials, get_credential, vault_status, set_budget, view_audit_log as stdio MCP tools.

Pricing

Tier$/moAgentsCredentialsAuditRotationBudgetsTeam
Free$0310––––
Pro$4925100✓✓––
Business$149∞∞✓✓✓✓
Enterprise$499∞∞✓✓✓✓ + SSO + compliance

Self-host

git clone https://github.com/bch1212/agentvault

cd agentvault pip install -r requirements.txt cp .env.example .env # then fill in VAULT_ENCRYPTION_KEY and DATABASE_URL python -m api.main

Run tests:

python -m pytest -v   # 34 tests

Deploy to Railway:

bash deploy.sh

Architecture

api/

├── main.py # FastAPI + lifespan ├── database.py # Async SQLAlchemy (auto-rewrites postgresql:// → postgresql+asyncpg://) ├── services/ │ ├── encryption.py # Fernet encrypt/decrypt │ ├── auth.py # avk_ key gen + SHA-256 hashing │ ├── budget.py # Per-agent spend tracking │ ├── audit.py # Access log │ └── alerts.py # SendGrid alerts ├── middleware/ # X-Agent-Key + Bearer auth └── routers/ # users, agents, credentials, vault, audit, budgets, billing mcp_server/ # FastMCP stdio server tests/ # 34 tests, SQLite in-memory

License

MIT.