Voice and SMS: make and control calls, send SMS, buy phone numbers, record calls and manage IVR scenarios
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View schema- Docs
- Callr Docs
- Spec
- OpenAPI 3.1.1
- Retrieved
- Nov 3, 2026, 09:37 UTC
- Digest
- 311c79abf4d2
For agents
Every page here has a markdown twin. The overview is one fetch; the llms.txt lists every operation with a link to its own markdown.
curl https://skmtc.dev/callr/apis/callr-rest-api-v2-0.mdcurl https://skmtc.dev/callr/apis/callr-rest-api-v2-0/llms.txt