Blockchain data, Deepstate and Standard Reserve markets, live chain queries, and API docs
Connect Runs on your machine
claude mcp add mcp -e X402_PRIVATE_KEY=<X402_PRIVATE_KEY> -e ONESOURCE_API_KEY=<ONESOURCE_API_KEY> -- npx -y @one-source/[email protected]
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@one-source/[email protected]"
],
"env": {
"X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>",
"ONESOURCE_API_KEY": "<ONESOURCE_API_KEY>"
}
}
}
}
{
"mcpServers": {
"mcp": {
"command": "npx",
"args": [
"-y",
"@one-source/[email protected]"
],
"env": {
"X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>",
"ONESOURCE_API_KEY": "<ONESOURCE_API_KEY>"
}
}
}
}
{
"servers": {
"mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@one-source/[email protected]"
],
"env": {
"X402_PRIVATE_KEY": "<X402_PRIVATE_KEY>",
"ONESOURCE_API_KEY": "<ONESOURCE_API_KEY>"
}
}
}
}
Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
X402_PRIVATE_KEYOptional, secret | EVM private key (64-char hex, 0x prefix optional) for automatic x402 USDC payments on Base |
ONESOURCE_API_KEYOptional, secret | OneSource API key for Bearer token auth |
Details
| Package | @one-source/[email protected] (NPM, stdio) |
| First published | 12 Nov 2026 |
| Last updated | 12 Nov 2026 |
| Registry name | io.onesource/mcp |
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