ToolVet
78trust / 100

Signals Fork

by CRYPTYX in Onchain & crypto

x402 APIPassing, checked 2 h ago

Fork a signal into an inactive parameter variant — production firing is untouched. Experimentation primitive: fork, dryrun-backtest, then activate. Returns the new version id and parameters. Runs across 200+ digital assets — BTC, ETH, SOL, top-cap + long-tail coverage.

POST
https://cryptyx.ai/api/signals/fork
Price
$0.05
per call in USDC
Uptime
100%
last 30 days
Response time
267 ms
470 ms slowest 5%
Last check
Passed
2 h ago, next any minute now

Run a free test callHow to call it

Reliability

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

How to call it

POST https://cryptyx.ai/api/signals/fork

Each call costs $0.05 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.

POST https://cryptyx.ai/api/signals/fork
content-type: application/json

{
  "params": {},
  "signal_id": ""
}

Parameters

ParameterTypeRequiredDescription
paramsobjectYesNon-empty JSONB parameter object stored as the new inactive version. Keys are not validated against the signal's param schema — agent must supply the correct keys (e.g., t_thr, dt_max, vol_thr) for the target signal's geometry.
signal_idstringYesRegistered signal_id in signals.signal_registry. Uppercased before lookup (e.g., TR_MOMO_CONT_14D, VOL_COMPRESSION_7v30, FUT_FUNDING_STRESS).

Example response

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

{
  "created_at": "2026-06-19T04:12:38.421Z",
  "is_active": false,
  "ok": true,
  "params": {
    "dt_max": -0.08,
    "t_thr": 0.55
  },
  "signal_id": "TR_MOMO_CONT_14D",
  "version": 188
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.05.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://cryptyx.ai/api/signals/fork' \
  -H 'content-type: application/json' \
  --data-raw '{"params":{},"signal_id":""}'

# 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 - -X POST 'https://cryptyx.ai/api/signals/fork' \
  -H 'content-type: application/json' \
  --data-raw '{"params":{},"signal_id":""}' \
  | 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 $0.05 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.05" });
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 $0.05 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fcryptyx.ai%2Fapi%2Fsignals%2Ffork&method=POST
const res = await pay("https://cryptyx.ai/api/signals/fork", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "params": {},
    "signal_id": ""
  }),
});
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 $0.05 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.05"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://cryptyx.ai/api/signals/fork",
        json={
            "params": {},
            "signal_id": "",
        },
    )
    print(res.status_code, res.text)

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Recent checks

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