com.spreadbench/ncsx

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Publisher-provided title

SpreadBench NCSX-IS — AI Infrastructure Bond Issuance Spread Index

Publisher-provided description

AI-infrastructure bond issuance-spread index (NCSX-IS): 13 bonds, 2 tiers, 14 free MCP tools.

Summary by lookupd

Look up AI-infrastructure bond issuance spreads, Treasury curves, filings, and maturity walls to answer credit and pricing questions.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http ncsx https://spreadbench.com/mcp

Codex, remote (streamable-http)

codex mcp add ncsx --url https://spreadbench.com/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "ncsx": {
      "url": "https://spreadbench.com/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (14 tools)

Publisher-provided text

• ncsx_latest The one number to quote — use this first for "what is NCSX-IS / what is the spread right now". Returns a compact record: headline issuance spread (coupon minus
• ncsx_index The full index definition, not a single number — use when the question is structural ("how is NCSX-IS built", "show all tiers") rather than "what is the level".
• ncsx_constituents The whole universe in one response — all 13 constituent bonds, no filter: issuer, ticker, coupon, maturity, size, seniority, pricing date, tenor, the matched Tr
• ncsx_bond Filtered lookup for one issuer, ticker or note keyword (e.g. "CoreWeave", "GLXY", "Helios", "2031") — returns only the matching constituent bonds, not the whole
• ncsx_curve The US Treasury par-yield curve used on the pricing date (14 tenors, interpolated linearly, never extrapolated) plus its recent history. Every constituent sprea
• ncsx_sector Context series for the AI-infrastructure credit complex: US high-yield OAS, US investment-grade OAS and related ICE BofA indices, with 30-day change and daily h
• ncsx_filings SEC filing radar for the 9 AI-infrastructure issuers covered by SpreadBench (6 in NCSX-IS plus Nebius, IREN and Hut 8 on the watchlist): every filing from the l
• ncsx_marks Second, independent layer: quarterly fair-value marks for AI-infrastructure bonds as reported by US registered funds on SEC Form N-PORT (Level 2), converted to
• ncsx_wall Maturity wall for AI-infrastructure bonds: outstanding face value by maturity year, split secured / unsecured, with the full bond list per year. As of 2026-11-0
• ncsx_stories Citable data stories (editorial layer) recomputed live from the same public data as the index, each with headline numbers, bilingual page URLs and a ready-to-po
• ncsx_facts The quotable-facts layer: 16 pre-computed, individually sourced numbers covering the whole index — index and sub-index levels, the secured-vs-unsecured structur
• ncsx_events The index history — use this when the question is "how did NCSX-IS get to its current level" rather than "what is the level". NCSX-IS is event-driven: it only m
• ncsx_ruler Reverse pricing — the question every other tool cannot answer: given a coupon and a tenor, where would a new AI-infrastructure bond land? Returns the matched Tr
• ncsx_methodology Methodology metadata and full formula chain: version, DOI, license, data sources and their licensing status, the exact spread and weighting formulas, and what i

Details

• Version: 0.3.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 1233 ms
• First indexed: 2026-11-03T21:17:16.080Z
• Last seen in registry: 2026-11-06T07:17:26.418Z
• Repository: https://github.com/BrianTian818/spreadbench-ncsx-mcp
• Website: https://spreadbench.com

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