ToolVet
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Defi Chain Tvl History

by DeFi chain TVL history in Onchain & crypto

x402 APIPassing, checked 18 min ago

Daily total value locked history for one chain or for all of DeFi, up to ten years of points, with latest, first, minimum, maximum and mean and the change over the window. Use it when an agent is charting a chain's growth or checking whether a TVL move is new or a return to trend.

POST
https://agent402.tools/api/defi-chain-tvl-history
Price
$0.002
per call in USDC
Uptime
100%
last 30 days
Response time
273 ms
410 ms slowest 5%
Last check
Passed
18 min ago, next in 12 min

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

POST https://agent402.tools/api/defi-chain-tvl-history

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://agent402.tools/api/defi-chain-tvl-history
content-type: application/json

{
  "chain": "Base",
  "days": 7
}

Parameters

ParameterTypeRequiredDescription
chainstringNoChain name as the source spells it (Ethereum, Base, Solana, Arbitrum, Optimism, BSC...) or "all" for total DeFi TVL. Default "all".
daysnumberNoMost recent days to return (default 90, max 3650).

Example response

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

{
  "chain": "Base",
  "count": 2,
  "fetchedAt": "2026-08-22T12:00:00.000Z",
  "points": [
    {
      "date": "2026-08-21",
      "tvlUsd": 5242607753
    },
    {
      "date": "2026-08-22",
      "tvlUsd": 5432285625
    }
  ],
  "source": "defillama-chain-tvl",
  "summary": {
    "changePct": 3.6,
    "first": 5242607753,
    "latest": 5432285625,
    "max": 5432285625,
    "mean": 5337446689,
    "min": 5242607753
  },
  "totalPoints": 1165
}

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://agent402.tools/api/defi-chain-tvl-history' \
  -H 'content-type: application/json' \
  --data-raw '{"chain":"Base","days":7}'

# 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://agent402.tools/api/defi-chain-tvl-history' \
  -H 'content-type: application/json' \
  --data-raw '{"chain":"Base","days":7}' \
  | 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%2Fagent402.tools%2Fapi%2Fdefi-chain-tvl-history&method=POST
const res = await pay("https://agent402.tools/api/defi-chain-tvl-history", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
    "chain": "Base",
    "days": 7
  }),
});
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://agent402.tools/api/defi-chain-tvl-history",
        json={
            "chain": "Base",
            "days": 7,
        },
    )
    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
18 min agoPassed402190 ms$0.002
5 h agoPassed402230 ms$0.002
9 h agoPassed402341 ms$0.002
13 h agoPassed402246 ms$0.002
17 h agoPassed402336 ms$0.002
Show 10 older checks
22 h agoPassed402191 ms$0.002
26 h agoPassed402402 ms$0.002
30 h agoPassed402369 ms$0.002
34 h agoPassed402273 ms$0.002
38 h agoPassed402197 ms$0.002
41 h agoPassed402258 ms$0.002
45 h agoPassed402191 ms$0.002
2 days agoPassed402410 ms$0.002
2 days agoPassed402264 ms$0.002
2 days agoPassed402443 ms$0.002