# SBOR (slim)

> SBOR, an MCP server by sbor.xyz, listed from the official MCP registry. Indexed, not reviewed: facts and our own checks, no score or ranking. Check a lending rate before your agent borrows. Bitcoin DeFi benchmark from contract state. No key.

- Full: https://www.anchorterminal.com/tools/sbor.md (~800 tokens) · this version ~730 tokens · JSON https://www.anchorterminal.com/tools/sbor.json · canonical https://www.anchorterminal.com/tools/sbor
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · Updated: 2026-10-05

# SBOR

> Indexed, not reviewed: facts from the official MCP registry and our own checks. No score, grade or rank, and not in the rankings until the panel reviews it. How the index works: https://www.anchorterminal.com/indexed/

- Kind: MCP server, by sbor.xyz (https://sbor.xyz)
- Listed because: It's published in the registry under sbor.xyz, a namespace the registry only gives to whoever proves they control that domain.
- What the official MCP registry says: Check a lending rate before your agent borrows. Bitcoin DeFi benchmark from contract state. No key.

## Facts

- MCP registry: `xyz.sbor/sbor` 1.2.1
- Endpoint: https://mcp.sbor.xyz/mcp (streamable HTTP)
- Package: npm `sbor-mcp` (stdio)
- Source: https://github.com/sborxyz/sbor
- Website: https://sbor.xyz
- npm downloads a week: 942
- GitHub stars: 0
- Registry entry updated: 2026-10-02

## Tools

- Tools it lists (6, about 1,140 tokens of context, `tools/list` without credentials, checked 2026-10-04 22:26 UTC):
  - `get_rate` (read-only): 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…
  - `compare_rate` (read-only): 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.…
  - `list_markets` (read-only): 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.
  - `get_history` (read-only): 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,…
  - `compare_chains` (read-only): 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…
  - `get_methodology` (read-only): 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…
- How its tools read to an agent (0 errors, 0 warnings, 1 note, about 1,140 tokens; rules at https://www.anchorterminal.com/check.md; not part of the score):
  - note TC24 server: 6 of 6 tools have no outputSchema

- JSON: https://www.anchorterminal.com/api/v1/tools/sbor.json
- Being indexed says nothing about quality, and nobody can pay for it. Ask for a review: https://www.anchorterminal.com/builders/#claiming