ritmex-bot/docs/binance/binance-spot/testnet_websocket-api_session-authentication.md

title, source, fetched_at

title	source	fetched_at
Session Authentication | Binance Open Platform	https://developers.binance.com/docs/binance-spot-api-docs/testnet/websocket-api/session-authentication	2026-02-26T10:38:12.191Z

Note: Only Ed25519 keys are supported for this feature.

If you do not want to specify apiKey and signature in each individual request, you can authenticate your API key for the active WebSocket session.

Once authenticated, you no longer have to specify apiKey and signature for those requests that need them. Requests will be performed on behalf of the account owning the authenticated API key.

Note: You still have to specify the timestamp parameter for SIGNED requests.

Authenticate after connection​

You can authenticate an already established connection using session authentication requests:

• session.logon – authenticate, or change the API key associated with the connection
• session.status – check connection status and the current API key
• session.logout – forget the API key associated with the connection

Regarding API key revocation:

If during an active session the API key becomes invalid for any reason (e.g. IP address is not whitelisted, API key was deleted, API key doesn't have correct permissions, etc), after the next request the session will be revoked with the following error message:

{    "id": null,    "status": 401,    "error": {        "code": -2015,        "msg": "Invalid API-key, IP, or permissions for action."    }}

Authorize ad hoc requests​

Only one API key can be authenticated with the WebSocket connection. The authenticated API key is used by default for requests that require an apiKey parameter. However, you can always specify the apiKey and signature explicitly for individual requests, overriding the authenticated API key and using a different one to authorize a specific request.

For example, you might want to authenticate your USER_DATA key to be used by default, but specify the TRADE key with an explicit signature when placing orders.

• Authenticate after connection
• Authorize ad hoc requests