ToolVet
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Cex Reserves

by cex-reserves in Onchain & crypto

x402 APIPassing, checked 3 h ago

Cheap raw normalized reserve breakdown of one centralized exchange: total on-chain reserves (currentTvl), clean-of-own-token reserves (cleanAssetsTvl), the own-token symbol / USD value / concentration, clean-asset ratio, spot & derivative volumes, leverage, 24h/1w/1m netflow and the public reserves URL, with citations. The cheap first grain before the fuller /cex/solvency verdict. Keyless DefiLlama source; reserves are a proxy, not proof of solvency.

GET
https://api.agentstools.dev/cex/reserves
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
27 ms
99 ms slowest 5%
Last check
Passed
3 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

How to call it

GET https://api.agentstools.dev/cex/reserves

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://api.agentstools.dev/cex/reserves?cex=okx

Parameters

ParameterTypeRequiredDescription
cexstringYesExchange name, slug or CoinGecko id (e.g. okx, bybit).
exchangestringNoAlias of cex.

Example response

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

{
  "cleanAssetsTvl": 22213449158,
  "clean_asset_ratio": 0.999689,
  "currentTvl": 22220365978,
  "exchange": "OKX",
  "leverage": 0.298,
  "limits": "reserves proxy; liabilities & PoR quality not visible",
  "netflow": {
    "d24h": 13316579,
    "m1": 107297925,
    "w1": -62839791
  },
  "own_token": {
    "concentration_pct": 0.0311,
    "symbol": "OKB"
  },
  "reserves_url": "https://www.okx.com/proof-of-reserves",
  "slug": "okx"
}

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://api.agentstools.dev/cex/reserves?cex=okx'

# 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://api.agentstools.dev/cex/reserves?cex=okx' \
  | 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%2Fapi.agentstools.dev%2Fcex%2Freserves
const res = await pay("https://api.agentstools.dev/cex/reserves?cex=okx");
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://api.agentstools.dev/cex/reserves?cex=okx")
    print(res.status_code, res.text)

Security scan

No findings

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Recent checks

WhenResultHTTPTimePrice
3 h agoPassed40226 ms$0.005
7 h agoPassed40223 ms$0.005
11 h agoPassed40226 ms$0.005
15 h agoPassed40222 ms$0.005
19 h agoPassed40228 ms$0.005
Show 10 older checks
23 h agoPassed40294 ms$0.005
26 h agoPassed40299 ms$0.005
30 h agoPassed40277 ms$0.005
34 h agoPassed40226 ms$0.005
38 h agoPassed40227 ms$0.005
41 h agoPassed40224 ms$0.005
45 h agoPassed40227 ms$0.005
2 days agoPassed40225 ms$0.005
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2 days agoPassed40222 ms$0.005