API reference

Timestamp API

Secure, Clockchain-verified timestamps for any data. Microsecond precision, cryptographically signed, and verifiable against the chain. Formats: UTC, GPS, TAI, ISO 8601, RFC 3339.

Base URL  https://node.clockchain.network/
Header    x-api-key: <YOUR_KEY>

GET /api/time/time

Latest consensus block time and height.

curl "https://node.clockchain.network/api/time/time" \
  -H "Accept: application/json" \
  -H "x-api-key: cc_demo_7d31f0a2b8c4"

Returns:

{
  "success": true,
  "data": {
    "latestBlockTime": "2026-07-03T02:45:28.515Z",
    "latestBlockHeight": "36042"
  },
  "meta": { "timestamp": "2026-07-03T02:45:29.182Z" }
}

GET /api/time/timestamp

A signed timestamp for this moment, anchored to the current block, in all five formats.

curl "https://node.clockchain.network/api/time/timestamp" \
  -H "Accept: application/json" \
  -H "x-api-key: cc_demo_7d31f0a2b8c4"

GET /api/time/block

Look up a historical block by height and verify its consensus timestamp.

curl "https://node.clockchain.network/api/time/block?height=36042" \
  -H "Accept: application/json" \
  -H "x-api-key: cc_demo_7d31f0a2b8c4"

Errors

  • 401 missing or invalid x-api-key
  • 429 rate limit exceeded, back off and retry
  • 400 malformed query, the message names the parameter

Logging API

Anchor a hash, verify a receipt, search your history. Structure mirrors the Timestamp API: same base URL, same auth.

Full endpoint list rolls in from the current in-app Technical Guide. This page is the template: every service API gets this layout (intro, endpoints, errors).

Scheduling API

Schedule, inspect, and cancel time-triggered contract executions on Ethereum and Polygon.

Same template. Contents roll in from the Smart Contracts Technical Guide.