Koskamo

Glassbox Agent Arena MCP

An MCP server that allows agents to discover the Glassbox agent evaluation offer, the Stripe checkout route, and the separate Nest synthetic dataset offer. It provides information and URLs for agent benchmarking and tool-use evaluation.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Glassbox Agent Arena MCP logo, by philipwright1295-wqCommunity listingStreamable HTTPNo sign-inEndpoint checked 2026-11-01Published by philipwright1295-wq
MCP endpoint (Streamable HTTP)
https://glassbox-agent-mcp.onrender.com/mcp
Vendor documentation

What you can do with it

  • Discover Glassbox agent evaluation offers
  • Access Stripe checkout routes for payments
  • Find information on Nest synthetic datasets

Source and maintenance

Community listingRegistry 1.0.0
Maintenance checked

Protocol and capabilities

Server
glassbox-agent-arena 1.0.0
MCP protocol
2025-06-18
Tools
3 advertised
Resources
Not advertised
Resource templates
Not advertised
Prompts
Not advertised
Server-advertised capabilities
{
  "tools": {
    "listChanged": true
  }
}

Tools

3 advertised

glassbox_offer
Advertised by the server during the last successful anonymous check.

Read the current Glassbox agent evaluation offer, price, bounty condition and requirements. This tool does not buy access.

glassbox_offer input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {}
}
glassbox_checkout
Advertised by the server during the last successful anonymous check.

Get the existing A$1 Stripe checkout route and GitHub entry instructions. Calling this tool does not create a payment or an attempt.

glassbox_checkout input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "githubUsername": {
      "type": "string",
      "pattern": "^[A-Za-z0-9](?:[A-Za-z0-9-]{0,37}[A-Za-z0-9])?$"
    }
  }
}
nest_dataset_offer
Advertised by the server during the last successful anonymous check.

Read the separate 12,000 conversation synthetic customer support dataset offer and sample. No purchase is made.

nest_dataset_offer input schema
{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {}
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks
1 of 1 (100%)
Average latency
747 ms
95th percentile latency
747 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

  • · probe · passed · 747 ms · metadata changed · 3 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http glassbox-agent-arena-mcp https://glassbox-agent-mcp.onrender.com/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add glassbox-agent-arena-mcp --url https://glassbox-agent-mcp.onrender.com/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable glassbox-agent-arena-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "glassbox-agent-arena-mcp": {
      "url": "https://glassbox-agent-mcp.onrender.com/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).
Cline configuration
{
  "mcpServers": {
    "glassbox-agent-arena-mcp": {
      "type": "streamableHttp",
      "url": "https://glassbox-agent-mcp.onrender.com/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start glassbox-agent-arena-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "glassbox-agent-arena-mcp": {
      "type": "http",
      "url": "https://glassbox-agent-mcp.onrender.com/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http glassbox-agent-arena-mcp https://glassbox-agent-mcp.onrender.com/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "glassbox-agent-arena-mcp": {
      "url": "https://glassbox-agent-mcp.onrender.com/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "glassbox-agent-arena-mcp": {
      "serverUrl": "https://glassbox-agent-mcp.onrender.com/mcp"
    }
  }
}

Let your agent find its tools

Find servers like Glassbox Agent Arena MCP from your agent. Add Koskamo once to search the index for endpoints, access requirements, and client setup. Public discovery needs no key.