Index Constituents

liveReference

Index constituents and holdings, point-in-time.

3tools
0msauth
free tier50 calls/day

Tools

index_constituents

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 f

No parameters required.

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ishares_etf_holdings

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

No parameters required.

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constituent_changes

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

No parameters required.

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Test with curl

The gateway speaks JSON-RPC 2.0 over HTTP POST. You can test any pack directly from the terminal.

List available tools
bash
curl -X POST https://gateway.pipeworx.io/index-constituents/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'
Call a tool
bash
curl -X POST https://gateway.pipeworx.io/index-constituents/mcp \
  -H "Content-Type: application/json" \
  -d '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"index_constituents","arguments":{}}}'

Use with the SDK

Install @pipeworx/sdk to call tools from any TypeScript/Node project.

TypeScript
import { Pipeworx } from '@pipeworx/sdk';
const px = new Pipeworx();
const result = await px.call("index_constituents", {});
ask_pipeworx
// Or ask in plain English:
const answer = await px.ask("index constituents and holdings, point-in-time");