Explorer v2 API

Transaction data and trust verification system

The Explorer API basically serves the same purpose as the HTTP API, but the difference is the data that Explorer API returns is more presentable and complete, while the HTTP API is more suited in terms of fetching individual data items.

There is also a minor difference in the way the two APIs communicate with the nodes to fetch the on-chain data.

It is recommended that the HTTP API be used when initiating and transmitting transactions to the chain.

The Explorer API also with a online platform that can fetch transaction related information using the web browser. It works with the transaction that have taken place on both the testnet and the mainnet. The website can be accessed using this link - https://explorer.ont.io/

Query Format

URL Request Parameter Specification

Multiple URL parameters are connected using underscores


  • Page Parameters




Number of records per page [1 - 20]


Total number of pages [ >= 1 ]

  • Time Parameters




Start time (UNIX timestamp)


End time (UNIX timestamp)

The maximum valid time range is one week.

Response Codes

HTTP Status Codes

Status Code


200 (Normal Request)

Successful response

400 (Bad Request)

Server could not process the request, likely due to an invalid parameters

500 (Internal Server Error)

Unexpected server issue

Response DTO

The response DTO is a status object that is always included in the JSON response payload for both successful and failed calls. When errors occur you may refer to the code and msg fields that are part of the status object.

  "code": 0, // 0 implies successful calls, !=0 implies failure
  "msg": "SUCCESS",
  "result": {}

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