Cyphrex

Blockchain SSN for AI agents.

CommunityDegradedAPI key requiredGlobalFreeRead-only

What it can do

    What data it sees

    Do you need an account

    An API key from the service settings is required

    Blockchain SSN for AI agents. MCP gateway that blocks at the point of action, tamper evident audit.

    How to connect

    How to connect Cyphrex to Claude

    The server address to paste into Claude settings:

    https://mcp.cyphrex.io/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect Cyphrex to ChatGPT

    The server address to paste into ChatGPT settings:

    https://mcp.cyphrex.io/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect Cyphrex to Cursor

    The server address to paste into Cursor settings:

    https://mcp.cyphrex.io/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (9)

    Raw names from tools/list. Only developers need these.

    register_agentRegister a new Cyphrex agent
    check_actionRun Cyphrex check on a proposed action
    log_actionLog an executed action for a Cyphrex agent
    get_audit_logGet Cyphrex audit log for an agent
    set_behavior_profileSet behavior profile for an agent
    verify_agentFetch/verify agent details
    scan_mcp_tools_listScan an upstream MCP tools/list payload for threats and diff tool snapshots
    scan_mcp_tool_resultScan an upstream MCP tools/call result for PII, injection, and volume anomalies
    proxy_mcp_requestProxy a JSON-RPC tools/list or tools/call request to an upstream MCP server. Cyphrex enforces threat policy before the caller receives the upstream result.