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MCP security checks — WARDEN and HISTOR

Scan MCP tool definitions for poisoning, look up server history, count tool-list tokens.

Connector by modelmarket.dev · Domain verified by the MCP Registry

IndexedMITRemote (HTTP)
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Install

Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install connector/modelmarket-dev-mcp-security

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

Remote endpoint

  • https://modelmarket.dev/tools/mcp/security Remote (HTTP)

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About

Scan MCP tool definitions for poisoning, look up server history, count tool-list tokens. Free.

Reviews

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Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools
4 read · 0 write · 0 deleteRead-only
Secrets
None asked for
Install scripts
Nothing to install (hosted)
Runs as
Hosted (remote endpoint)

Tools by what they do 4

From the running server's own tool list (tools/list) on Oct 25, 2026.

Read 4 · Look things up without changing anything.

  • histor_check
  • tool_list_cost
  • warden_scan
  • x402_check

Network hosts it talks to 1

  • modelmarket.dev · found in remote endpoint, install command

Tools (4)

As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].

  • histor_checkServer history (HISTOR)read-only

    Look up an MCP server in HISTOR, a public append-only log of MCP tool sets: when its tool set was first pinned, how often it changed, and what the pattern scan found. HISTOR answers from its own observations and never contacts the server.

  • tool_list_costTool list token costread-only

    How many tokens an MCP server's tool list adds to every model request, what that costs per 1,000 requests, the heaviest tools, and where it sits among 18,204 packages and 16,170 remote servers. Send a tools/list or name a server HISTOR observes.

  • warden_scanScan tool definitions (WARDEN)read-only

    Scan an MCP server's tools/list with WARDEN, the open-source MCP firewall: static rules and a threat list over every name, description, schema and annotation. Returns allow or block and each finding with its rule and severity. Quoted fragments of the scanned text are left out of the answer.

  • x402_checkx402 payment checkread-only

    Check a signed x402 USDC payment before submitting it: recovers the EIP-712 signer, runs USDC's own checks and the seller's terms, and when the signature fails names the domain it was really made for (e.g. Base Sepolia's 'USDC' used on Base, where USDC is 'USD Coin').

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    Stars
    0
    Forks
    0
    Open issues
    0
    Last commit
    Oct 23, 2026 (5 days ago)
    Last release
    Oct 21, 2026 (7 days ago)

    From GitHub (fetched Oct 24, 2026).

    Details

    Registry name
    dev.modelmarket/mcp-security
    Version
    1.0.0
    Auth
    Auth not stated
    License
    MIT
    Repository
    github.com/alexar76/warden
    Website
    modelmarket.dev/tools/
    First seen
    Oct 24, 2026
    Last checked
    Oct 24, 2026
    Source
    Official MCP Registrygithub-graphql

    More from modelmarket.dev

    Cite this page

    MCP security checks — WARDEN and HISTOR. Agent Mart. https://agentmart.dev/connectors/modelmarket-dev-mcp-security (last updated 2026-10-24)