Harness Snapshot
by CRYPTYX in Markets & finance
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.
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
Reliability
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
| Parameter | Type | Required | Description |
|---|---|---|---|
asof_day | string | No | YYYY-MM-DD. Defaults to latest evaluated day. |
scope | string | No | '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 --decodeJavaScript: 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
| When | Result | HTTP | Time | Price |
|---|---|---|---|---|
| 2 h ago | Passed | 402 | 244 ms | $0.005 |
| 6 h ago | Passed | 402 | 249 ms | $0.005 |
| 11 h ago | Passed | 402 | 234 ms | $0.005 |
| 15 h ago | Passed | 402 | 240 ms | $0.005 |
| 19 h ago | Passed | 402 | 319 ms | $0.005 |
Show 10 older checks
| 23 h ago | Passed | 402 | 178 ms | $0.005 |
| 27 h ago | Passed | 402 | 250 ms | $0.005 |
| 31 h ago | Passed | 402 | 217 ms | $0.005 |
| 35 h ago | Passed | 402 | 229 ms | $0.005 |
| 39 h ago | Passed | 402 | 397 ms | $0.005 |
| 43 h ago | Passed | 402 | 231 ms | $0.005 |
| 47 h ago | Passed | 402 | 203 ms | $0.005 |
| 2 days ago | Passed | 402 | 184 ms | $0.005 |
| 2 days ago | Passed | 402 | 328 ms | $0.005 |
| 2 days ago | Passed | 402 | 231 ms | $0.005 |