VRChat MCP

io.github.BASIC-BIT/vrchat-mcp·v0.1.7·Other

MCP server for VRChat friends, worlds, groups, events, notifications, and VRCX history.

In-path gate · all MCP tools

Using VRChat MCP in Claude, Cursor, Gemini CLI, Cline, or Zed?

MCP tool contracts can change remotely with no version bump. The mcpindex gate pins each contract and HOLDs the call when it drifts—before your agent acts. Zero credentials. This is not the package install for this server itself (use Install this server for that).

Install the mcpindex gate (one command)

Rewrites your MCP host config so each server launches behind the gate. Inspect first: curl -fsSL https://mcpindex.ai/install.sh | less

curl -fsSL https://mcpindex.ai/install.sh | sh

Auditable install path →Watch it hold a drift →

Trust verdict · v1 advisory · method

REVIEWstatus: PARTIALfresh until 2026-08-04 06:03 UTC

screened 2026-07-05tier: scannedgranularity: description-levelsource: registry

Semantic screen found no manipulation pattern in the description. Conformance probe not yet run.

mcpindex.integrity.descriptionpassINFO

evidence“No malicious instructions found”via static_description

Limits of this verdict

- Semantic screen only - the deterministic conformance probe has not run on this server
- Confidence is reported but not yet calibrated (v1)
- Screen reads the tool description, not the live behavior
- advisory
- registry description only no input schema
- screen model 8b

Semantic screen: an LLM judge reads the tool description for hidden instructions (status PARTIAL). A pass means the description is not lying, not that the tool is safe: a high-capability tool with an honest description still warrants caution. The deterministic conformance probe has not been run on this server yet, so the screen here is semantic-only. Posture: advisory. Confidences are reported but not yet calibrated (calibrated=false at v1). Full verdict history is not shown on this page.

Own this server? Screen its description →

Embed this badge

A live verdict badge for your README or listing. It reflects the current screen, links back here, and updates when the verdict does.

Markdown

[![mcpindex](https://mcpindex.ai/api/v1/badge/io-github-basic-bit-vrchat-mcp)](https://mcpindex.ai/server/io-github-basic-bit-vrchat-mcp)

HTML

<a href="https://mcpindex.ai/server/io-github-basic-bit-vrchat-mcp"><img src="https://mcpindex.ai/api/v1/badge/io-github-basic-bit-vrchat-mcp" alt="mcpindex verdict" height="20" /></a>

Environment variables

VRCHAT_MCP_CONFIG_FILE

Path to a JSON config file for settings not supplied through environment variables.

VRCHAT_MCP_USER_AGENT

Descriptive User-Agent for VRChat API requests.

VRCHAT_MCP_LOG_LEVEL

Log level for stderr diagnostics.

VRCHAT_MCP_COOKIE_STORE

Cookie storage backend for VRChat authentication. The keychain mode falls back to file storage if the OS keychain is unavailable.

VRCHAT_MCP_COOKIE_FILE

Cookie file path used when VRCHAT_MCP_COOKIE_STORE is file.

VRCHAT_MCP_ALLOW_WRITES

Allow non-GET VRChat API write operations. Defaults to true for local full-capability use; set to false for read-only mode.

MCP quality score · maturity, not trust · methodology

freshness

completeness

installability

documentation

stability

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Install this server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "vrchat-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@basicbit/vrchat-mcp"
      ],
      "env": {
        "VRCHAT_MCP_CONFIG_FILE": "<vrchat_mcp_config_file>",
        "VRCHAT_MCP_USER_AGENT": "<vrchat_mcp_user_agent>",
        "VRCHAT_MCP_LOG_LEVEL": "info",
        "VRCHAT_MCP_COOKIE_STORE": "keychain",
        "VRCHAT_MCP_COOKIE_FILE": "<vrchat_mcp_cookie_file>",
        "VRCHAT_MCP_ALLOW_WRITES": "true"
      }
    }
  }
}

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "vrchat-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@basicbit/vrchat-mcp"
      ],
      "env": {
        "VRCHAT_MCP_CONFIG_FILE": "<vrchat_mcp_config_file>",
        "VRCHAT_MCP_USER_AGENT": "<vrchat_mcp_user_agent>",
        "VRCHAT_MCP_LOG_LEVEL": "info",
        "VRCHAT_MCP_COOKIE_STORE": "keychain",
        "VRCHAT_MCP_COOKIE_FILE": "<vrchat_mcp_cookie_file>",
        "VRCHAT_MCP_ALLOW_WRITES": "true"
      }
    }
  }
}

Cline (cline_mcp_settings.json)

npx -y @basicbit/vrchat-mcp

Claude Code (claude mcp add)

claude mcp add --scope user vrchat-mcp -- npx -y @basicbit/vrchat-mcp

Gemini CLI (gemini mcp add)

gemini mcp add -s user vrchat-mcp npx -y @basicbit/vrchat-mcp

Verdict API

curl -s mcpindex.ai/api/v1/trust/server/io-github-basic-bit-vrchat-mcp

Free-tier verdict as JSON: decision + dimensions + severity. Call it from your agent before it invokes a tool it just discovered.

Details

version: v0.1.7
category: Other
verdict expires: 2026-08-04
quality: 90 / 100
operator: BASIC-BIT

Provenance

Verdict history is anchored to Bitcoin via OpenTimestamps. The anchor proof is public and any skeptic can recompute it offline.

Links

Repository →Website →