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Expose (JSON-RPC Proxy)
Proxy server that enables communication between clients and MCP-compatible services through JSON-RPC, forwarding requests to configured backend URLs while maint
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About
Proxy server that enables communication between clients and MCP-compatible services through JSON-RPC, forwarding requests to configured backend URLs while maintaining proper error handling and response formatting.
Example tools
Illustrative tool names — the actual tool set is defined by the server at runtime.
list_resources
Enumerate resources exposed by this MCP
get_resource
Fetch a resource by ID
invoke
Invoke the primary action of this MCP
Screenshots
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Frequently Asked Questions
Common questions about Expose (JSON-RPC Proxy).
- What is the Expose JSON-RPC Proxy?
- Expose is a proxy server designed to facilitate communication between clients and MCP-compatible services. It routes JSON-RPC requests to specified backend URLs, ensuring correct error handling and response formatting.
- How do I configure Expose with an MCP client?
- Configuration depends on the specific MCP client. You generally need to specify the Expose server as the target for JSON-RPC requests, providing the appropriate endpoint. Refer to your client's documentation for detailed setup instructions.
- Does Expose require authentication like an API key?
- No, Expose itself does not require an API key or other credentials for operation as an MCP. However, the backend services it proxies may have their own authentication mechanisms.
- What are the common uses of the Expose proxy?
- Expose is typically used to centralize access to multiple MCP-compatible services or to add a layer of abstraction between clients and backend implementations. It can simplify client configuration and manage routing.
- What are the licensing costs for the Expose JSON-RPC Proxy?
- Expose is open-source and available on GitHub, implying it can be used without direct licensing costs. Operational costs would depend on your chosen hosting environment and infrastructure.
- What is a key limitation when using Expose?
- Expose primarily acts as a forwarding proxy and does not inherently provide advanced features such as request transformation, caching, or load balancing. These capabilities would need to be implemented separately or with additional tools.
Install Expose (JSON-RPC Proxy)
Claude Desktop
Add this to claude_desktop_config.json.
{
"mcpServers": {
"expose-json-rpc-proxy": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-expose-json-rpc-proxy"
]
}
}
}Cursor
Add this to ~/.cursor/mcp.json.
{
"mcpServers": {
"expose-json-rpc-proxy": {
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-expose-json-rpc-proxy"
]
}
}
}VS Code
Add this to your workspace settings.json.
{
"mcp.servers": {
"expose-json-rpc-proxy": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@modelcontextprotocol/server-expose-json-rpc-proxy"
]
}
}
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