# API V1 (/api) stops working

Calls to /api on Etherscan API stopped working on August 15, 2025.

Calls to the /api endpoint will stop working on August 15, 2025. On that date, API V1 reaches full deprecation, causing all requests directed to this version to fail.

## What to use instead

Send requests to the v2 endpoint at api.etherscan.io/v2/api using your existing module, action, and other query parameters. You must also supply the chainid parameter for the target chain, using an Etherscan API key that covers all supported chains.

- API: Etherscan API (api.etherscan.io)
- Kind: Version retirement
- Announced: July 30, 2025
- Takes effect: August 15, 2025
- Calls after that day: fail
- Calls it hits: `/api`
- Source: [Announcement](https://kb.etherscan.com/etherscan-api-v1-will-be-fully-deprecated-by-15th-august-2025)
- Verified: October 26, 2026, against Etherscan API's own pages
- Page: https://www.okapi.bot/providers/etherscan-api/breaking-changes/api-v1-api-stops-working/

## Etherscan API's words

> API V1 will be fully deprecated by August 15, 2025 . After that, all V1 requests will stop working.

Okapi finds the calls this change hits in your repo and opens the pull request with the fix: https://github.com/apps/okapi-agent