ToolVet
75trust / 100

Stables Supply

by eu-verify in Onchain & crypto

x402 APIPassing, checked 4 h ago

Circulating supply per stablecoin from DeFiLlama with computed net flows (delta_24h/delta_7d/delta_30d = net mint minus burn), peg type, peg mechanism and current price. Query: ?symbol=USDT for one asset, or ?top=10 (1-50, default 10) for the largest by supply. Served with a 30min cache.

GET
https://data.greeneris.io/v1/stables/supply
Price
$0.005
per call in USDC
Uptime
100%
last 30 days
Response time
335 ms
468 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

How to call it

GET https://data.greeneris.io/v1/stables/supply

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://data.greeneris.io/v1/stables/supply?symbol=USDT

Parameters

ParameterTypeRequiredDescription
symbolstringNoStablecoin ticker, e.g. USDT (optional)
topintegerNoNumber of largest stablecoins to return Default: 10.

Example response

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

{
  "count": 1,
  "source": "DeFiLlama (stablecoins.llama.fi)",
  "stablecoins": [
    {
      "circulating": 184133214409.51,
      "delta_24h": -8993322.02,
      "delta_30d": 2100450900.12,
      "delta_7d": 512000104.33,
      "name": "Tether",
      "peg_mechanism": "fiat-backed",
      "peg_type": "peggedUSD",
      "price": 1,
      "symbol": "USDT"
    }
  ]
}

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://data.greeneris.io/v1/stables/supply?symbol=USDT'

# 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://data.greeneris.io/v1/stables/supply?symbol=USDT' \
  | 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%2Fdata.greeneris.io%2Fv1%2Fstables%2Fsupply
const res = await pay("https://data.greeneris.io/v1/stables/supply?symbol=USDT");
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://data.greeneris.io/v1/stables/supply?symbol=USDT")
    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 agoPassed4021.5 s$0.005
9 h agoPassed402335 ms$0.005
13 h agoPassed402361 ms$0.005
17 h agoPassed402329 ms$0.005
21 h agoPassed402323 ms$0.005
Show 10 older checks
25 h agoPassed402489 ms$0.005
29 h agoPassed402339 ms$0.005
33 h agoPassed402328 ms$0.005
37 h agoPassed402410 ms$0.005
41 h agoPassed402325 ms$0.005
45 h agoPassed402336 ms$0.005
2 days agoPassed402405 ms$0.005
2 days agoPassed402176 ms$0.005
2 days agoPassed402384 ms$0.005
2 days agoPassed402337 ms$0.005