MCP server

Index Constituents

io.github.pipeworx-io/index-constituents

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Index constituents and holdings, point-in-time.

From the maker's README Current constituents, weights and sectors of six major US and developed-markets equity indexes, plus a dated history of S&P 500 additions and removals — point-in-time index membership built from a live ETF proxy, not a licensed index feed. Source

Website Source

At a glance

Type

MCP server

Publisher

pipeworx.io (verified by the MCP Registry)

Status

Working at last check

Tools

45

Token cost

About 27,346 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http index-constituents https://gateway.pipeworx.io/index-constituents/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.index-constituents]
url = "https://gateway.pipeworx.io/index-constituents/mcp"

Gemini CLI

{"mcpServers":{"index-constituents":{"httpUrl":"https://gateway.pipeworx.io/index-constituents/mcp"}}}

Cursor

{"mcpServers":{"index-constituents":{"url":"https://gateway.pipeworx.io/index-constituents/mcp"}}}

VS Code

{"servers":{"index-constituents":{"type":"http","url":"https://gateway.pipeworx.io/index-constituents/mcp"}}}

Antigravity

agy mcp add index-constituents https://gateway.pipeworx.io/index-constituents/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"index-constituents","server_url":"https://gateway.pipeworx.io/index-constituents/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"index-constituents","server_url":"https://gateway.pipeworx.io/index-constituents/mcp"}

Tools

• constituent_changes ~334 tokens
  Dated additions and removals from the S&P 500, sourced from Wikipedia's maintained "Historical components of the S&P 500" table (every S&P-announced swap since 1963, each with its effective date, the ticker/company added, the ticker/company removed, and the stated reason). Answers "what changed in t
• index_constituents ~371 tokens
  Current constituents of a major US or developed-markets equity index — ticker, name, GICS sector, and weight — sourced from the matching iShares index-tracking ETF's daily holdings file (the closest free, point-in-time proxy for official index membership and weights; S&P/Russell do not publish those
• ishares_etf_holdings ~338 tokens
  Full reported holdings of one of six iShares index-tracking ETFs (IVV, IJH, IJR, IWB, IWM, EFA) as of the fund's own "as of" date — every position including cash, collateral and futures, each labeled with its asset class so they are never silently mixed in with equities. Answers "what does IVV actua

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