Mercury X402 MCP Server
by mercuryx402io.github.mercuryx402/mercury-x402-mcpv1.0.1
Agent-payable web data over x402: 18 keyless services an agent pays per call.
context tax
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security
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cold start
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freshness
Slowing4mo ago
Install Mercury X402 MCP server
Install in Claude Code
claude mcp add mercury-x402 -- npx -y mercury-x402-mcpInstall in Cursor
{
"mcpServers": {
"mercury-x402": {
"command": "npx",
"args": [
"-y",
"mercury-x402-mcp"
]
}
}
}Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).
Install in Claude Desktop
{
"mcpServers": {
"mercury-x402": {
"command": "npx",
"args": [
"-y",
"mercury-x402-mcp"
]
}
}
}Settings → Developer → Edit Config (claude_desktop_config.json), then restart.
Install in VS Code
{
"servers": {
"mercury-x402": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"mercury-x402-mcp"
]
}
}
}Add to .vscode/mcp.json in your workspace.
Install in Windsurf
{
"mcpServers": {
"mercury-x402": {
"command": "npx",
"args": [
"-y",
"mercury-x402-mcp"
]
}
}
}Add to ~/.codeium/windsurf/mcp_config.json.
Remote endpoints
- streamable-http
https://network.mercury-hq.com/mcp
Freshness
Slowing — last maintenance signal 4mo ago. The newest of the signals below sets the band.
Last commit (default branch)
2026-06-07 · 4mo ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-06-07 · 4mo ago · official registry · v1.0.1
FAQ
›How do I install the Mercury X402 MCP server in Claude Code?
Run: claude mcp add mercury-x402 -- npx -y mercury-x402-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.
›Does Mercury X402 require an API key?
No required environment variables are declared in its published metadata.
›Can I use Mercury X402 as a remote (hosted) MCP server?
Yes — it offers both a hosted endpoint and a local stdio package.
›Is Mercury X402 in the official MCP registry?
Yes, as io.github.mercuryx402/mercury-x402-mcp.