ToolVet
75trust / 100

Entities Internal Transfers

by TraceFast in Onchain & crypto

x402 APIPassing, checked 1 h ago

TraceFast live Ethereum data: the value-carrying call frames an address sent or received inside transactions, newest first — each with its position in the call tree, its depth, the kind of call, the value it moved and its own outcome. Path address: The address, `0x`-prefixed, 40 hex characters, any case. Query: limit, cursor, direction, fromBlock, toBlock (see docs). Docs: https://docs.tracefast.xyz/api/entity-internal-transfers.md

GET
https://mpp.tracefast.xyz/api/v1/chains/1/entities/:address/internal-transfers
Price
$0.1
per call in USDC
Uptime
100%
last 30 days
Response time
331 ms
525 ms slowest 5%
Last check
Passed
1 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

GET https://mpp.tracefast.xyz/api/v1/chains/1/entities/:address/internal-transfers

Each call costs $0.1 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://mpp.tracefast.xyz/api/v1/chains/1/entities/:address/internal-transfers?limit=10

Example response

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

{
  "data": {
    "address": "0xf977814e90da44bfa03b6295a0616a897441acec",
    "nextCursor": "AVsyMTQ5NTE4MiwxMjQsIjAwMDAwMDAwMDAwMDAwMDQiXWhWW_WDxjfZHNn6YTv1h70",
    "transfers": [
      {
        "blockNumber": 25946150,
        "callDepth": 2,
        "callPath": "00000004",
        "callType": "call",
        "counterparty": "0xc477032db5ccbea767fa74ab76556ba15a06de5b",
        "from": "0xc477032db5ccbea767fa74ab76556ba15a06de5b",
        "role": "receiver",
        "status": "success",
        "timestamp": 1789033211,
        "to": "0xf977814e90da44bfa03b6295a0616a897441acec",
        "txHash": "0x86b956daec829ca32753f78e2d6a7a0349838594bf272bab345c40ea7f1a55cd",
        "txIndex": 117,
        "valueWei": "693530000000000"
      }
    ]
  }
}

Call it from code

The curl command shows the payment challenge. The JavaScript and Python versions pay and call, and never pay more than $0.1.

curl: see the payment challenge
# bash or zsh: see the payment challenge. Nothing is charged.
curl -sS -g -i 'https://mpp.tracefast.xyz/api/v1/chains/1/entities/:address/internal-transfers?limit=10'

# 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://mpp.tracefast.xyz/api/v1/chains/1/entities/:address/internal-transfers?limit=10' \
  | 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 $0.1 per call.
const client = new x402Client().setSpendControls({ maxAmountPerPayment: "$0.1" });
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 $0.1 per payment. GET https://toolvet.app/api/v1/check?url=https%3A%2F%2Fmpp.tracefast.xyz%2Fapi%2Fv1%2Fchains%2F1%2Fentities%2F%3Aaddress%2Finternal-transfers
const res = await pay("https://mpp.tracefast.xyz/api/v1/chains/1/entities/:address/internal-transfers?limit=10");
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 $0.1 per call.
client = x402ClientSync().set_spend_controls({"max_amount_per_payment": "$0.1"})
register_exact_evm_client(client, EthAccountSigner(Account.from_key(os.environ["EVM_PRIVATE_KEY"])))

with x402_requests(client) as session:
    res = session.get("https://mpp.tracefast.xyz/api/v1/chains/1/entities/:address/internal-transfers?limit=10")
    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
1 h agoPassed402130 ms$0.1
6 h agoPassed402209 ms$0.1
9 h agoPassed402336 ms$0.1
14 h agoPassed402332 ms$0.1
18 h agoPassed402401 ms$0.1
Show 10 older checks
22 h agoPassed402282 ms$0.1
26 h agoPassed402374 ms$0.1
31 h agoPassed402472 ms$0.1
35 h agoPassed402367 ms$0.1
39 h agoPassed402177 ms$0.1
43 h agoPassed402363 ms$0.1
47 h agoPassed402449 ms$0.1
2 days agoPassed402287 ms$0.1
2 days agoPassed402205 ms$0.1
2 days agoPassed402225 ms$0.1

History

12 Oct 2026Price changed from $0.2 to $0.1