Read-only Polymarket sports and esports data: wallet grades on settled P&L, large trades, markets.

How do I install 0xinsider?

Install 0xinsider via npm from https://registry.npmjs.org, then add the server config to your MCP client (Claude Desktop, Cursor, or VS Code).

Is 0xinsider open source?

Yes, 0xinsider is open source under the MIT license. Source code is available at https://github.com/0xinsider/agent-plugin.

What category does 0xinsider belong to?

0xinsider is listed under Other MCP servers on MCPFind.

0xinsider — MCP Server for Other

0xinsider Agent Plugin

The official Agent Plugin for 0xinsider - Polymarket analytics for sports and esports in real-time.

It bundles the 0xinsider MCP server with five skills that teach an agent how to read large trades, wallet grades, sharp-money flow, and published research without misreporting them.

Install

npx skills add 0xinsider/agent-plugin

Or install one skill without adding the whole plugin:

npx skills use 0xinsider/agent-plugin@0xinsider-api-access

Skill	Covers
`0xinsider-api-access`	Credentials, sandbox vs live hosts, MCP transports, rate limits, typed errors
`polymarket-whale-trades`	Large-trade feed, history replay, counterparties, significance score
`polymarket-wallet-grades`	Trader grades, settled P&L and its trust metadata, leaderboards, position timelines
`polymarket-sharp-money`	Directional flow, market intel, sports-edge signals, Insider Radar flags
`polymarket-market-research`	Market search and explore, published research, report snapshots

AGENTS.md holds the rules for AI coding agents writing integration code against the API. .cursorrules mirrors it.

MCP server

mcp.json points at the remote Streamable HTTP endpoint:

{
  "mcpServers": {
    "0xinsider": {
      "type": "http",
      "url": "https://0xinsider.com/mcp",
      "headers": { "Authorization": "Bearer ${OXINSIDER_API_KEY}" }
    }
  }
}

The server exposes 33 tools across traders, markets, large trades, positions, flow, research, reports, and webhooks. Its card is at /.well-known/mcp.

A local stdio path ships in the CLI:

npx -y 0xinsider init

Try it with no account

Every documented operation answers from the sandbox with no credential:

curl -s https://0xinsider.com/sandbox/api/v1/leaderboard

One POST returns a sandbox key and the steps to live access:

curl -s -X POST https://api.0xinsider.com/api/v1/agents/register \
  -H 'Content-Type: application/json' -d '{"name":"my-agent"}'

Official resources

Developer portal: https://0xinsider.com/developers
API documentation: https://docs.0xinsider.com
OpenAPI 3.1 spec: https://0xinsider.com/api/v1/openapi.json
Machine-readable index: https://0xinsider.com/llms.txt
Python SDK: https://github.com/0xinsider/0xinsider-python
Go SDK: https://github.com/0xinsider/0xinsider-go
CLI and MCP package: https://www.npmjs.com/package/@0xinsider/mcp

License

MIT

Set up in your AI client

AI clientOperating system

Merge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.

json

{
  "mcpServers": {
    "io-github-0xinsider-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@0xinsider/mcp"
      ]
    }
  }
}

Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.

Claude Desktop setup reference

Compatible MCP Clients

0xinsider works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.

Claude Desktop~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.

Cursor~/.cursor/mcp.jsonRestart Cursor for changes to take effect.

VS Code.vscode/mcp.jsonReload VS Code window for changes to take effect.

Windsurf~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect.

Claude Code.mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.

0xinsider

0xinsider Agent Plugin

Install

Contents