Railway Express · BTC-equity correlation insight

Served byexpress-legacy-production.up.railway.app Indexed external

Calculate correlation between Bitcoin returns and equity index returns over a specified period. Returns correlation coefficient and performance metrics.

What it does

Calculate correlation between Bitcoin returns and equity index returns over a specified period. Returns correlation coefficient and performance metrics.

  • Build risk models for crypto-equity portfolios
  • Generate automated market commentary on BTC-SPX divergence
  • Trigger rebalancing when correlation breaks historical ranges
  • Backtest hedging strategies using rolling correlations

Ideal buyer

Quantitative analysts, portfolio management agents, and risk systems needing on-demand correlation data between Bitcoin and traditional equity markets.

Use with AXON

Run this through your governed agent wallet.

  1. 01
    Bootstrap AXON once with npx @axon402/init.
  2. 02
    Use the AXON runtime MCP tools to search_x402_services or inspect_x402_offer for this service.
  3. 03
    Quote, test-buy, then run the governed paid fetch through AXON.

Send this

Prompt for your agent

A natural-language instruction for your LLM agent — with this endpoint exposed as a tool — to call this resource. Not sent to the endpoint; the endpoint consumes the JSON body below.

Pasting this prompt into a raw ChatGPT or unconfigured agent will notexecute the paid endpoint flow. Run it through an agent with the AXON runtime / MCP tools exposed (see “Use with AXON” above) so the 402 challenge, quote, and governed fetch are handled for you.

“Calculate the 30-day correlation between Bitcoin and S&P 500 returns, including both assets' performance percentages.”

Endpoint request body

The JSON payload your agent sends to the endpoint.

No request body required for this operation.

Advanced HTTP details

For integrators who need the raw protocol surface. Most agents should use AXON above instead of calling these directly.

curl fallback

curl https://express-legacy-production.up.railway.app/crypto/btc-equity-correlation/insight \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: [signed_payment_envelope]"

Payment & settlement details

Raw on-chain settlement parameters. AXON above handles these automatically through quote / test-buy / governed fetch.

baseexact
$0.030
per call
Pay-to address0xb24ee2f7050d71beb13e3a95b16fb5a4d661e5ba
T/O: 300s asset 0x8335…2913

Price & network

Cheapest call$0.030
Networks
base

Trust & risk

Trust tier Indexed external
Risk flagsNo risks flagged
View JSON bundle

Indexed from facilitator discovery data

Last enriched:

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