FAQ

Authentication

How do I get an API key?

Create an app in the console and copy the API key.

Why am I seeing 401-like failures?

Check:

• X-API-KEY is correct
• X-TIMESTAMP is milliseconds (13 digits)
• X-SIGN follows the signing spec

Data

How do I get vsTokenId?

Use Token list with name or symbol. Cache common ids.

Why are some fields empty?

Possible reasons:

• No data for that token yet
• No rows in the requested window
• That metric is not supported for the token

Timestamp unit?

All timestamps are milliseconds (13 digits).

Usage

How are credits charged?

Per endpoint; see Credits in each doc.

Is there a page size cap?

Some endpoints expose size; limits are documented per API.

Support

Email support@valuescan.io if this doc does not cover your issue.