ToolVet
79trust / 100

Categories

by Crypto Categories & Sectors in Onchain & crypto

x402 APIPassing, checked 4 h ago

Crypto categories & sectors ranked by total value locked (USD): each DeFi narrative (e.g. Dexes, Lending, Liquid Staking, Restaking, RWA) with its aggregate TVL, protocol count and share of total DeFi TVL. A map of where capital sits across sectors. Centralised-exchange reserves are excluded.

POST
https://crypto.openverbs.com/v1/categories
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
582 ms
675 ms slowest 5%
Last check
Passed
4 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

POST https://crypto.openverbs.com/v1/categories

Each call costs $0.002 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://crypto.openverbs.com/v1/categories
content-type: application/json

{
  "limit": 1
}

Parameters

ParameterTypeRequiredDescription
limitintegerNoHow many sectors to return, ranked by TVL (default 15).

Example response

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

{
  "categories": [
    {
      "category": "Liquid Staking",
      "dominancePct": 22.4,
      "protocols": 214,
      "tvlUsd": 61234567890.12
    }
  ],
  "count": 101,
  "source": "defillama",
  "stale": false,
  "totalTvlUsd": 273456789012.34
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.002.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i -X POST 'https://crypto.openverbs.com/v1/categories' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":1}'

# 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://crypto.openverbs.com/v1/categories' \
  -H 'content-type: application/json' \
  --data-raw '{"limit":1}' \
  | 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 $0.002 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.002" });
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 $0.002 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fcrypto.openverbs.com%2Fv1%2Fcategories&method=POST
const res = await pay("https://crypto.openverbs.com/v1/categories", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "limit": 1
  }),
});
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 $0.002 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.002"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.post(
        "https://crypto.openverbs.com/v1/categories",
        json={
            "limit": 1,
        },
    )
    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
4 h agoPassed402675 ms$0.002
8 h agoPassed402609 ms$0.002
13 h agoPassed402502 ms$0.002
17 h agoPassed402582 ms$0.002
21 h agoPassed402554 ms$0.002
Show 10 older checks
25 h agoPassed402584 ms$0.002
30 h agoPassed402591 ms$0.002
34 h agoPassed402612 ms$0.002
38 h agoPassed402553 ms$0.002
42 h agoPassed402577 ms$0.002
46 h agoPassed402501 ms$0.002
2 days agoPassed402555 ms$0.002
2 days agoPassed402589 ms$0.002
2 days agoPassed402578 ms$0.002
3 days agoPassed402502 ms$0.002