78trust / 100

Harness Snapshot

by CRYPTYX in Markets & finance

x402 APIPassing, checked 2 h ago

Canonical harness tear-sheet — one call returns totals (fires / boundary / silent / first-ever), top-5 fires by confidence, first-ever prints (5-year rarity), boundary watchlist (near-fire ranked by distance-to-trigger), and silent fade setups. Every setup carries plain-English composition (via ref.metric_display_labels) so responses never leak raw metric_id strings. Priced cheap so polling patterns stay economically viable — every MCP skill instructs Claude to call this FIRST as the canonical orientation. Scope: apex (BTC/ETH/SOL default), all (33-asset curated universe), or asset:{SYMBOL} for single-asset lens.

GET
https://cryptyx.ai/api/v1/harness/snapshot
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
229 ms
346 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

All checks passedSome failedAll failedNot checked

Status and outage history · Atom feed · Watch with other listings

How to call it

GET https://cryptyx.ai/api/v1/harness/snapshot

Each call costs $0.005 in USDC on Base, paid with the request over x402.

Run a free test callOne unpaid request, the way an agent sends it. You see the payment challenge it gets back. Nothing is charged.

Example request

From the listing.

GET https://cryptyx.ai/api/v1/harness/snapshot?asof_day=&scope=

Parameters

ParameterTypeRequiredDescription
asof_daystringNoYYYY-MM-DD. Defaults to latest evaluated day.
scopestringNo'apex' (BTC/ETH/SOL, default) | 'all' (full 33-asset universe) | 'asset:BTC' (single-asset lens).

Example response

The provider's example. We can't check it without paying.

Example response, 51 lines
{
  "asof_day": "2026-08-21",
  "boundary_watchlist": [
    {
      "asset": "SOL",
      "backtest": {
        "hit_rate_90d": 0.46,
        "mean_ret_90d": 0.042
      },
      "display_name": "Solana Aggressive Taker Buy Spike (60d Long)",
      "distance_to_trigger": -0.18,
      "setup_id": "flow_solana_aggressive_taker_buy_spike_60d_long_t1",
      "state": "boundary"
    }
  ],
  "first_ever_fires": [
    {
      "asset": "BTC",
      "backtest": {
        "hit_rate_90d": 0.83,
        "mean_ret_90d": 0.155,
        "n_fires": 13,
        "sharpe_90d": 2.16
      },
      "confidence": 1,
      "direction": "long",
      "display_name": "Bitcoin Full-Stack Efficient Trend Persistence · 4-Factor Flagship",
      "factor_family": "EFF",
      "setup_id": "eff_bitcoin_full_stack_efficient_trend_persistence_4_factor_flagship_t5",
      "state": "first_ever",
      "tier": 5
    }
  ],
  "read_hint": "39 first-ever fires today (rare — never printed in 5yr sample) · 18 setups on the boundary.",
  "scope": "apex",
  "silent_fades": [
    {
      "asset": "BTC",
      "display_name": "BTC 3-Family Bull Continuation Override (Fade-Fail Setup)",
      "fade_type": "regime_exhaustion",
      "setup_id": "cross_family_btc_3_family_bull_continuation_override_fade_fail_setup_t1"
    }
  ],
  "top_fires": [],
  "totals": {
    "boundary": 18,
    "fires": 0,
    "first_ever": 39,
    "silent": 125
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.005.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://cryptyx.ai/api/v1/harness/snapshot?asof_day=&scope='

# 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://cryptyx.ai/api/v1/harness/snapshot?asof_day=&scope=' \
  | grep -i '^payment-required:' | cut -d' ' -f2 | tr -d '\r' | base64 --decode
JavaScript: pay and call
// 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 $0.005 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.005" });
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 $0.005 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fcryptyx.ai%2Fapi%2Fv1%2Fharness%2Fsnapshot
const res = await pay("https://cryptyx.ai/api/v1/harness/snapshot?asof_day=&scope=");
console.log(res.status, await res.text());
Python: pay and call
# 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 $0.005 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.005"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://cryptyx.ai/api/v1/harness/snapshot?asof_day=&scope=")
    print(res.status_code, res.text)

Security scan

No findings

We scan names, descriptions and tool definitions for hidden instructions and other prompt-injection patterns.

Recent checks

WhenResultHTTPTimePrice
2 h agoPassed402244 ms$0.005
6 h agoPassed402249 ms$0.005
11 h agoPassed402234 ms$0.005
15 h agoPassed402240 ms$0.005
19 h agoPassed402319 ms$0.005
Show 10 older checks
23 h agoPassed402178 ms$0.005
27 h agoPassed402250 ms$0.005
31 h agoPassed402217 ms$0.005
35 h agoPassed402229 ms$0.005
39 h agoPassed402397 ms$0.005
43 h agoPassed402231 ms$0.005
47 h agoPassed402203 ms$0.005
2 days agoPassed402184 ms$0.005
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2 days agoPassed402231 ms$0.005