Call Yesterday

{
  "calculated_at": "2026-01-03",
  "call": {
    "cadence": "daily",
    "confidence": 0.55,
    "confidence_meaning": "Claude's own stated sign-probability for the published direction at the time of the call. It is not a calibrated probability unless the calibration block below says so.",
    "date": "2026-01-03",
    "decision_for_date": "2026-01-03",
    "direction": "long",
    "first_captured_at": null,
    "first_captured_confidence": null,
    "first_captured_position": null,
    "horizon": "next UTC session",
    "key_drivers": [
      {
        "contribution": 0.2,
        "direction": "bullish",
        "domain": "trend"
      }
    ],
    "position": 0.35
  },
  "confidence_quality": {
    "brier": 0.25,
    "hit_rate": 0.56,
    "hit_rate_wilson95": [
      0.46,
      0.65
    ],
    "hits": 56,
    "n_decisions": 100,
    "through_date": "2026-01-02",
    "window_days": 365
  },
  "content_id": "0000000000000000000000000000000000000000000000000000000000000000",
  "first_publication_id": "pub-2026-01-03-r1-000000000000",
  "freshness": {
    "deadline": "2026-01-04T23:59:00.000Z",
    "status": "current"
  },
  "instrument": "XBTUSD",
  "product_id": "yesterday_call",
  "publication_id": "pub-2026-01-03-r1-000000000000",
  "published_at": "2026-01-03T00:10:00.000Z",
  "result_class": "hypothetical_advisory_overlay",
  "revision": 1,
  "schema_version": "cryptoanalysis.daily-position.v1",
  "signal_id": "sig-2026-01-03",
  "source_decision_as_of": "2026-01-03",
  "source_identity": "cryptoanalysis.info public advisory",
  "supersedes_publication_id": null,
  "track_record": {
    "history": [
      {
        "advisory_pnl_pct": 0.2,
        "btc_close": 101,
        "btc_start": 100,
        "confidence": 0.5,
        "cumulative_advisory_pnl_pct": 0.2,
        "cumulative_benchmark_pnl_pct": 1,
        "date": "2026-01-02",
        "first_captured_confidence": null,
        "first_captured_position": null,
        "first_captured_status": "unavailable",
        "position": 0.3,
        "session_return_pct": 1
      }
    ],
    "history_methodology": {
      "aggregation": "additive",
      "benchmark": "gross_full_long_btc_buy_and_hold",
      "cost_bps_per_unit_turnover": 10,
      "flat_position_handling": "included_as_zero_return_contribution",
      "missing_session_handling": "omitted_and_counted_in_skipped_anomalous_sessions",
      "result_class": "hypothetical_advisory_overlay",
      "session_boundary": "UTC_close_to_close",
      "units": "percent"
    },
    "summary": {
      "cumulative_advisory_pnl_pct": 0.2,
      "cumulative_benchmark_pnl_pct": 1,
      "lifetime_skipped_anomalous_sessions": 0,
      "mean_advisory_pnl_pct": 0.2,
      "mean_benchmark_pnl_pct": 1,
      "n_sessions": 1,
      "skipped_anomalous_dates": [],
      "skipped_anomalous_dates_truncated": false,
      "skipped_anomalous_sessions": 0
    }
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://paid-api.cryptoanalysis.workers.dev/v1/call/yesterday'

# x402 v2 sends the challenge base64-encoded in the PAYMENT-REQUIRED header (v1 sends it in the body).
# To read the header:
curl -sS -g -o /dev/null -D - 'https://paid-api.cryptoanalysis.workers.dev/v1/call/yesterday' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode

// npm i @x402/fetch @x402/evm viem
import { wrapFetchWithPayment, x402Client } from "@x402/fetch";
import { registerExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

// Pays at most $0.25 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.25" });
registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.EVM_PRIVATE_KEY) });
const pay = wrapFetchWithPayment(fetch, client);

// Not sure it's safe to pay? ToolVet checks it first for $0.005. Pay for that from a separate
// client: this one is capped at $0.25 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fpaid-api.cryptoanalysis.workers.dev%2Fv1%2Fcall%2Fyesterday
const res = await pay("https://paid-api.cryptoanalysis.workers.dev/v1/call/yesterday");
console.log(res.status, await res.text());

# pip install "x402[requests,evm]"
import os
from eth_account import Account
from x402 import x402ClientSync
from x402.http.clients import x402_requests
from x402.mechanisms.evm import EthAccountSigner
from x402.mechanisms.evm.exact.register import register_exact_evm_client

# Pays at most $0.25 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.25"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://paid-api.cryptoanalysis.workers.dev/v1/call/yesterday")
    print(res.status_code, res.text)