Send SMS and check balance with GatewayAPI (Denmark). Your client pastes their GatewayAPI key once, and your agent or your code works with their access.
Phone and SMS
About GatewayAPI
Through Operate As, your agent, n8n workflow or code works in GatewayAPI with your client's own access. Your client pastes their API key from GatewayAPI once. We store it encrypted, so it never sits in an email or a shared doc. Your agent reaches any endpoint of GatewayAPI's API through the request tool, with the client's access attached.
Common uses in Phone and SMS
Send appointment reminders and confirmations by text
Log calls and messages against the right customer
Follow up on missed calls
GatewayAPI
GatewayAPI · Phone and SMS
API key
Send SMS and check balance with GatewayAPI (Denmark)
The client pastes their API key from GatewayAPI's settings. We store it encrypted.
Tested against GatewayAPI's live API.
Building with GatewayAPI? The docs have setup steps and code for every tool.
Add a client, select the services, copy the link. You'll get an email the moment their access is ready. Start free, no card required. Paid plans are one flat monthly price, and a busy month never takes your agents offline.