Index onlineMerchant portal
Api Endpoint

TraceFast

TraceFast live Ethereum data: three different questions about when an address was active, each answered separately — when it was first mentioned anywhere on chain; when its own account state last changed and how many times it changed; and the newest block at which it took part in anything (a top-level transaction, a token transfer, an emitted log, a value-bearing call), with the sources that answer was… Path: address. Docs: https://docs.tracefast.xyz/api/address-activity.md

Open interactive test console

Offering

Provider
mpp.tracefast.xyz
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://mpp.tracefast.xyz/api/v1/chains/1/entities/:address/activity
MIME type
application/json
First seen
2026-10-16T01:52:13.818Z
Last seen
Tags
blockchain, Ethereum, address-intelligence, labels, entities

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.01 USDC
Atomic price: 10000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "payTo": "0x2A65491E93Ad0d484b74405401A38e2E0E5EDd7e"
  }
]

Observed health

Status
Healthy
Latest latency
76 ms
Average latency
281 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "method": "GET",
  "pathParams": {
    "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
  },
  "queryParams": {},
  "type": "http"
}

Output schema

{
  "type": "json",
  "example": {
    "data": {
      "chainId": 1,
      "address": "0xf977814e90da44bfa03b6295a0616a897441acec",
      "firstSeenBlock": 8115394,
      "firstSeenTimestamp": 1562653163,
      "lastStateChangeBlock": 26095721,
      "lastStateChangeTimestamp": 1790836655,
      "stateChangeCount": 20182,
      "lastInteractionBlock": 26095721,
      "lastInteractionTimestamp": 1790836655,
      "lastActivity": {
        "block": 26096544,
        "timestamp": 1790846579,
        "sources": [
          "events"
        ],
        "bySource": {
          "events": null,
          "tokenTransfers": 26096544,
          "internalTransfers": 25946150,
          "directTx": 26095721
        }
      }
    }
  }
}