Priors

io.github.priors-agents/priors · v0.20.0

Pay x402 APIs in USDG on Robinhood Chain, borrow and repay a Priors credit line, check records.

Website Source code Set it up

Connect Runs on your machine

Terminal

claude mcp add priors -e PRIORS_KEY=<PRIORS_KEY> -e PRIORS_KEY_FILE=<PRIORS_KEY_FILE> -e PRIORS_AGENT_ID=<PRIORS_AGENT_ID> -e PRIORS_MAX_PRICE_USD=<PRIORS_MAX_PRICE_USD> -e PRIORS_MAX_SPEND_USD=<PRIORS_MAX_SPEND_USD> -e PRIORS_MAX_BORROW_USD=<PRIORS_MAX_BORROW_USD> -e PRIORS_MAX_SPEND_DAY_USD=<PRIORS_MAX_SPEND_DAY_USD> -e PRIORS_MAX_BORROW_DAY_USD=<PRIORS_MAX_BORROW_DAY_USD> -e PRIORS_PAY_HOSTS=<PRIORS_PAY_HOSTS> -e PRIORS_JOIN=<PRIORS_JOIN> -e PRIORS_LINE_BOARD=<PRIORS_LINE_BOARD> -e PRIORS_MAX_BACK_DAY_USD=<PRIORS_MAX_BACK_DAY_USD> -e PRIORS_STRATEGIES=<PRIORS_STRATEGIES> -e PRIORS_STRATEGIES_URL=<PRIORS_STRATEGIES_URL> -- npx -y @priors/[email protected]

claude_desktop_config.json

{
  "mcpServers": {
    "priors": {
      "command": "npx",
      "args": [
        "-y",
        "@priors/[email protected]"
      ],
      "env": {
        "PRIORS_KEY": "<PRIORS_KEY>",
        "PRIORS_KEY_FILE": "<PRIORS_KEY_FILE>",
        "PRIORS_AGENT_ID": "<PRIORS_AGENT_ID>",
        "PRIORS_MAX_PRICE_USD": "<PRIORS_MAX_PRICE_USD>",
        "PRIORS_MAX_SPEND_USD": "<PRIORS_MAX_SPEND_USD>",
        "PRIORS_MAX_BORROW_USD": "<PRIORS_MAX_BORROW_USD>",
        "PRIORS_MAX_SPEND_DAY_USD": "<PRIORS_MAX_SPEND_DAY_USD>",
        "PRIORS_MAX_BORROW_DAY_USD": "<PRIORS_MAX_BORROW_DAY_USD>",
        "PRIORS_PAY_HOSTS": "<PRIORS_PAY_HOSTS>",
        "PRIORS_JOIN": "<PRIORS_JOIN>",
        "PRIORS_LINE_BOARD": "<PRIORS_LINE_BOARD>",
        "PRIORS_MAX_BACK_DAY_USD": "<PRIORS_MAX_BACK_DAY_USD>",
        "PRIORS_STRATEGIES": "<PRIORS_STRATEGIES>",
        "PRIORS_STRATEGIES_URL": "<PRIORS_STRATEGIES_URL>"
      }
    }
  }
}

~/.cursor/mcp.json

{
  "mcpServers": {
    "priors": {
      "command": "npx",
      "args": [
        "-y",
        "@priors/[email protected]"
      ],
      "env": {
        "PRIORS_KEY": "<PRIORS_KEY>",
        "PRIORS_KEY_FILE": "<PRIORS_KEY_FILE>",
        "PRIORS_AGENT_ID": "<PRIORS_AGENT_ID>",
        "PRIORS_MAX_PRICE_USD": "<PRIORS_MAX_PRICE_USD>",
        "PRIORS_MAX_SPEND_USD": "<PRIORS_MAX_SPEND_USD>",
        "PRIORS_MAX_BORROW_USD": "<PRIORS_MAX_BORROW_USD>",
        "PRIORS_MAX_SPEND_DAY_USD": "<PRIORS_MAX_SPEND_DAY_USD>",
        "PRIORS_MAX_BORROW_DAY_USD": "<PRIORS_MAX_BORROW_DAY_USD>",
        "PRIORS_PAY_HOSTS": "<PRIORS_PAY_HOSTS>",
        "PRIORS_JOIN": "<PRIORS_JOIN>",
        "PRIORS_LINE_BOARD": "<PRIORS_LINE_BOARD>",
        "PRIORS_MAX_BACK_DAY_USD": "<PRIORS_MAX_BACK_DAY_USD>",
        "PRIORS_STRATEGIES": "<PRIORS_STRATEGIES>",
        "PRIORS_STRATEGIES_URL": "<PRIORS_STRATEGIES_URL>"
      }
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "priors": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@priors/[email protected]"
      ],
      "env": {
        "PRIORS_KEY": "<PRIORS_KEY>",
        "PRIORS_KEY_FILE": "<PRIORS_KEY_FILE>",
        "PRIORS_AGENT_ID": "<PRIORS_AGENT_ID>",
        "PRIORS_MAX_PRICE_USD": "<PRIORS_MAX_PRICE_USD>",
        "PRIORS_MAX_SPEND_USD": "<PRIORS_MAX_SPEND_USD>",
        "PRIORS_MAX_BORROW_USD": "<PRIORS_MAX_BORROW_USD>",
        "PRIORS_MAX_SPEND_DAY_USD": "<PRIORS_MAX_SPEND_DAY_USD>",
        "PRIORS_MAX_BORROW_DAY_USD": "<PRIORS_MAX_BORROW_DAY_USD>",
        "PRIORS_PAY_HOSTS": "<PRIORS_PAY_HOSTS>",
        "PRIORS_JOIN": "<PRIORS_JOIN>",
        "PRIORS_LINE_BOARD": "<PRIORS_LINE_BOARD>",
        "PRIORS_MAX_BACK_DAY_USD": "<PRIORS_MAX_BACK_DAY_USD>",
        "PRIORS_STRATEGIES": "<PRIORS_STRATEGIES>",
        "PRIORS_STRATEGIES_URL": "<PRIORS_STRATEGIES_URL>"
      }
    }
  }
}

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
`PRIORS_KEY` Optional, secret	Private key of a dedicated agent wallet on Robinhood Chain; without it (or PRIORS_KEY_FILE) only the read-only tools work
`PRIORS_KEY_FILE` Optional	Absolute path (or ~/) of a file holding the agent wallet's key, read only when nobody but the user can read it; instead of PRIORS_KEY
`PRIORS_AGENT_ID` Optional	The wallet's Priors (ERC-8004) agent id, when it cannot be looked up
`PRIORS_MAX_PRICE_USD` Optional	Most one x402 call may cost (default 1.00)
`PRIORS_MAX_SPEND_USD` Optional	Most x402 payments may total while the server runs (default 5)
`PRIORS_MAX_BORROW_USD` Optional	Most one loan may be (default 25)
`PRIORS_MAX_SPEND_DAY_USD` Optional	Most x402 payments may total per UTC day for the agent, across restarts (needs PRIORS_AGENT_ID)
`PRIORS_MAX_BORROW_DAY_USD` Optional	Most the agent may borrow per UTC day, across restarts (needs PRIORS_AGENT_ID; 0 turns borrowing off)
`PRIORS_PAY_HOSTS` Optional	Comma-separated exact hosts pay_url may pay; any other URL is refused before a request
`PRIORS_JOIN` Optional	on: join (registers an ERC-8004 identity for this wallet when it owns none) and first_line (the treasury's first line for it, with PRIORS_BOT_URL); off by default
`PRIORS_LINE_BOARD` Optional	on: the line board, signed by this wallet: line_ask and line_take for an agent it owns, and line_offer, line_send and line_back_own for a root it owns; off by default
`PRIORS_MAX_BACK_DAY_USD` Optional	Most line line_send and line_back_own may send from this wallet per UTC day, across restarts (read only with PRIORS_LINE_BOARD=on; none by default; 0 sends none)
`PRIORS_STRATEGIES` Optional	on: strategies_list and strategy_read, read only: the trading strategies published on Priors' strategy board; off by default
`PRIORS_STRATEGIES_URL` Optional	The strategy board read with PRIORS_STRATEGIES=on (default https://test.priors.trade/api/strategies); https, or http for localhost only

Details

Package	`@priors/[email protected]` (NPM, stdio)
First published	11 Nov 2026
Last updated	11 Nov 2026
Registry name	`io.github.priors-agents/priors`

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Local install

Installed and run on your own machine, so there is no public endpoint to check.

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