Official MCP RegistryListed
SBOR
Check a lending rate before your agent borrows. Bitcoin DeFi benchmark from contract state. No key.
First seen 2 Oct 2026. Evidence as of 2 Oct 2026.
6
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| compare_chains | 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 USDC against bitcoin on Base and Ethereum. Context only: none of these is ever a constituent of an SBOR index. Aave on Ethereum and Base and the bitcoin-collateral markets are read from contract state; the other venues come from DefiLlama, so small differences are expected for those. | Read-only |
| compare_rate | 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 USDC loan against bitcoin (cbBTC or WBTC) on Base or Ethereum, compare with BTC-COLLATERAL-USDC; for lending on Stacks, 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. | Read-only |
| get_history | Daily fixings since the index 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. | Read-only |
| get_methodology | 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. | Read-only |
| get_rate | The benchmark borrow and supply rate for lending on Stacks, read from lending contract state. 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. | Read-only |
| list_markets | 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. | Read-only |
Change history
- Description changed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | xyz.sbor/sbor | 2 Oct 2026 | 2 Oct 2026 | 2 |