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SBOR

by sbor.xyz · remote · local (npm) · no sign-in to list tools · v1.3.0 · published by xyz.sbor

Check a lending rate before your agent borrows. Bitcoin-backed dollar rates from contracts. No key.

Read only
CompareRegistry entry

6 tools: 6 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http sbor https://mcp.sbor.xyz/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

6 tools

Only reads 6Claude Code: allow
  • compare_chainsThe same asset classes on the largest lending markets on Ethereum, Base, Hyperliquid and Solana, plus SOFR, the US repo rate, and what it costs to borrow dollars against bitcoin.No findings

    Why it is in this group

    • The name "compare_chains" says "compare": a word for reading.
    Description, as the server wrote it
    The same asset classes on the largest lending markets on Ethereum, Base, Hyperliquid and Solana, plus SOFR, the US repo rate, and what it costs to borrow dollars against bitcoin. Context only: none of these is ever a constituent of an SBOR index. Every rate is read from the venues' contracts (Aave on Ethereum and Base, HyperLend on Hyperliquid, Kamino on Solana, Morpho for the bitcoin-collateral markets); DefiLlama picks the largest market per chain, gives its size, and stands in only if a read fails.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • compare_rateGiven a rate you have been offered, say whether it is above or below the market for that currency, and by how much.No findings

    Why it is in this group

    • The name "compare_rate" says "compare": a word for reading.
    Description, as the server wrote it
    Given a rate you have been offered, say whether it is above or below the market for that currency, and by how much. This is the main reason SBOR exists. Recommended use: if a borrow offer is more than 50 basis points above the benchmark, stop and ask a human. Use SBOR to stop, never to start. For a dollar loan against bitcoin, compare with that stablecoin's rate (for example BTC-COLLATERAL-USDC) where one is published, else with BTC-COLLATERAL-USD; for lending on Stacks against other collateral, with the index for the currency. This tool refuses rather than guesses: an error result means there is no trustworthy answer, not that the rate is bad.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • get_historyDaily fixings since each rate began.No findings

    Why it is in this group

    • The name "get_history" says "get": a word for reading.
    Description, as the server wrote it
    Daily fixings since each rate began. Use this to see whether a rate is unusual, or how the cost of capital has moved. Means are given per methodology version, never across a change in how the number is built.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • get_methodologyThe full methodology and integration policy: how the fixing is built, what is excluded and why, and what SBOR will and will not do.No findings

    Why it is in this group

    • The name "get_methodology" says "get": a word for reading.
    Description, as the server wrote it
    The full methodology and integration policy: how the fixing is built, what is excluded and why, and what SBOR will and will not do. Read this before quoting a rate in anything that matters.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • get_rateSBOR's benchmark borrow and supply rates, read from lending contract state: BTC-COLLATERAL-USD, what it costs to borrow dollars against bitcoin, with a rate per stablecoin (from 14…No findings

    Why it is in this group

    • The name "get_rate" says "get": a word for reading.
    Description, as the server wrote it
    SBOR's benchmark borrow and supply rates, read from lending contract state: BTC-COLLATERAL-USD, what it costs to borrow dollars against bitcoin, with a rate per stablecoin (from 14 October 2026), and the currency indices for lending on Stacks. Use this to judge whether a lending offer is good: borrowing above the SBOR borrow rate means paying more than the market, supplying below the supply rate means earning less. Returns every currency index unless one is named. Always read the freshness line first.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • list_marketsEvery venue and asset in an index, with its borrow rate, supply rate, utilization, depth and weight.No findings

    Why it is in this group

    • The name "list_markets" says "list": a word for reading.
    Description, as the server wrote it
    Every venue and asset in an index, with its borrow rate, supply rate, utilization, depth and weight. Utilization explains why a rate sits where it does.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.3.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http sbor https://mcp.sbor.xyz/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__sbor__get_rate",
      "mcp__sbor__compare_rate",
      "mcp__sbor__list_markets",
      "mcp__sbor__get_history",
      "mcp__sbor__compare_chains",
      "mcp__sbor__get_methodology"
    ],
    "ask": [],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as sbor. Review it before you use it.