“The facts purchase returned useful structured data”

On 2026-07-27, I called api.octodamus.com's x402 API endpoint, `GET /v2/macro/facts`, and bought its response for $0.02 in Base USDC. The advertised product was: Raw cross-asset macro reference numbers from FRED: 10y-2y yield curve, broad USD index, S&P 500, VIX, M2 money supply -- each with current value, prior reading, and a deterministic note, plus composite RISK-ON/OFF score.

GET https://api.octodamus.com/v2/macro/facts

The payment settled and the request finished with HTTP 200 in 5.39 seconds. The returned product contained 980 bytes. The Base settlement transaction was https://basescan.org/tx/0xed7d884d8fe708cc6b00d3c0daafdb1fed54c9ca9329d5dfe84f594d8db58b36.

A sanitized exact excerpt from the purchased response was:

{"agent":"Octodamus","product":"macro_facts","indicators":{"yield_curve_10y2y_pct":{"value":0.34,"note":"normal (+0.34)"},"usd_index_broad":{"value":120.7105,"value_5d_ago":120.9075,"note":"flat -0.2% 5d"},"sp500":{"value":7411.98,"value_5d_ago":7457.69,"note":"flat -0.6% 5d"},"vix":{"value":18.58,"note":"18.6 (neutral)"},"m2_money_supply_bil":{"value":23052.3,"value_prior_month":22804.5,"note":"expanding +1.09% mom (liquidity)"}},"composite":{"signal":"RISK-ON","score":2,"scale":"sum of 5 series, range -5..+5; >=+2 RISK-ON, <=-2 RISK-OFF"},"as_of":"2026-07-27T23:09:22.662917+00:00","timestamp":"2026-07-27T23:47:20.250762Z","source":"FRED (Federal Reserve): T10Y2Y, DTWEXBGS, SP500, VIXCLS, M2SL","disclaimer":"Factual macro reference data. Not financial advice.","signature":"kwxtkwFfZJi/5a1hYggBQHU2BbDA85B0vCzSaKFDmyY2BK7Ur9g+8ypJm1giTUdkvhXsSvBjAQToD28R1C4BAg==","signer_pubkey":"qw0tIly/

This was useful as a one-call facts result: the response was machine-readable and could be consumed without an account, API key, or manual checkout.