Liquidity

{
  "data": {
    "per_venue": [
      {
        "depth_within_1c_usd": 43511.16,
        "depth_within_5c_usd": 220022.94,
        "est_slippage_c": 0.11,
        "spread_c": 1,
        "venue": "kalshi"
      },
      {
        "depth_within_1c_usd": 52295.06,
        "depth_within_5c_usd": 175633.51,
        "est_slippage_c": 0.14,
        "spread_c": 1,
        "venue": "polymarket"
      }
    ],
    "volume_24h_usd": 591880.68,
    "volume_profile_24h": [
      {
        "hour": 13,
        "volume_usd": 22654.53
      },
      {
        "hour": 14,
        "volume_usd": 28433.7
      },
      {
        "hour": 15,
        "volume_usd": 23554.93
      },
      {
        "hour": 16,
        "volume_usd": 24849.59
      },
      {
        "hour": 17,
        "volume_usd": 27004.33
      },
      {
        "hour": 18,
        "volume_usd": 24873.7
      },
      {
        "hour": 19,
        "volume_usd": 20998.15
      },
      {
        "hour": 20,
        "volume_usd": 22003.64
      },
      {
        "hour": 21,
        "volume_usd": 31425.32
      },
      {
        "hour": 22,
        "volume_usd": 24433.02
      },
      {
        "hour": 23,
        "volume_usd": 28671.91
      },
      {
        "hour": 0,
        "volume_usd": 21033.08
      },
      {
        "hour": 1,
        "volume_usd": 19440.17
      },
      {
        "hour": 2,
        "volume_usd": 27355.65
      },
      {
        "hour": 3,
        "volume_usd": 33541.3
      },
      {
        "hour": 4,
        "volume_usd": 19872.25
      },
      {
        "hour": 5,
        "volume_usd": 20189.92
      },
      {
        "hour": 6,
        "volume_usd": 28022.61
      },
      {
        "hour": 7,
        "volume_usd": 25217.71
      },
      {
        "hour": 8,
        "volume_usd": 20702.89
      }
    ]
  },
  "meta": {
    "data_mode": "live",
    "docs": "https://x402-factory.com/docs/probability.liquidity",
    "endpoint": "/v1/liquidity/{slug}",
    "freshness": "realtime",
    "generated_at": "2026-09-29T05:40:59.302Z",
    "request_id": "req_00000000",
    "sources": [
      "kalshi",
      "polymarket"
    ],
    "version": "1.0.0"
  }
}

# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://x402-factory.com/v1/liquidity/:slug?notional_usd=5000'

# 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://x402-factory.com/v1/liquidity/:slug?notional_usd=5000' \
  | 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 $0.03 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.03" });
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 $0.03 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fx402-factory.com%2Fv1%2Fliquidity%2F%3Aslug
const res = await pay("https://x402-factory.com/v1/liquidity/:slug?notional_usd=5000");
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 $0.03 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.03"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://x402-factory.com/v1/liquidity/:slug?notional_usd=5000")
    print(res.status_code, res.text)