# Sinch Callbacks API

**Canonical:** https://apis.io/apis/sinch/sinch-callbacks-api/  
**Provider:** Sinch — https://apis.io/providers/sinch/  
**Base URL:** https://us.conversation.api.sinch.com  
**Documentation:** https://developers.sinch.com/docs/conversation/api-reference/conversation

Sinch Callbacks API is one of 101 APIs that [Sinch](https://apis.io/providers/sinch/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification. This API exposes 73 JSON Schema definitions. Tagged areas include Callbacks. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, an AsyncAPI specification, and 73 JSON Schemas.

Controlling a call from your application backend is done by responding to callbacks from the Sinch platform and/or by calling REST APIs in the Sinch platform from your application's backend. Read more about how callbacks work [here](https://developers.sinch.com/docs/voice/api-reference/callbacks).

## Machine-readable artifacts (107)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-callbacks-api-openapi.yml
- **Documentation** — https://developers.sinch.com/docs/conversation
- **APIReference** — https://developers.sinch.com/docs/conversation/api-reference/template
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-v2-template-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-v2-list-translations-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-v2-list-templates-response-schema.json
- **Documentation** — https://developers.sinch.com/docs/est
- **APIReference** — https://developers.sinch.com/docs/est/api-reference/est
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-call-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-sip-trunk-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-sip-endpoint-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-ip-range-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-access-control-list-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-number-schema.json
- **Documentation** — https://developers.sinch.com/docs/fax
- **APIReference** — https://developers.sinch.com/docs/fax/api-reference/fax
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-fax-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-service-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-template-by-name-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-update-template-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-service-phone-number-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-cover-page-schema.json
- **Documentation** — https://developers.sinch.com/docs/number-lookup-api-v2
- **APIReference** — https://developers.sinch.com/docs/number-lookup-api-v2/api-reference/number-lookup-v2
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-number-lookup-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-number-lookup-request-schema.json
- **Documentation** — https://developers.sinch.com/docs/numbers
- **APIReference** — https://developers.sinch.com/docs/numbers/api-reference/imported-hosting
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-hosting-order-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-qualified-number-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-text-enable-numbers-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-hosting-order-number-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-imported-number-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-list-imported-numbers-response-schema.json
- **APIReference** — https://developers.sinch.com/docs/numbers/api-reference/numbers
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-active-number-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-rent-any-number-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-validate-address-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-number-order-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-create-number-order-request-schema.json
- …and 67 more, listed in full on the page.

## Other Sinch APIs (12)

- [Sinch Conversation API](https://apis.io/apis/sinch/sinch-conversation-api/)
- [Sinch Voice API](https://apis.io/apis/sinch/sinch-voice-api/)
- [Sinch Brands API](https://apis.io/apis/sinch/sinch-brands-api/)
- [Sinch MMS API](https://apis.io/apis/sinch/sinch-mms-api/)
- [Sinch Batches API](https://apis.io/apis/sinch/sinch-batches-api/)
- [Sinch Delivery Reports API](https://apis.io/apis/sinch/sinch-delivery-reports-api/)
- [Sinch Inbounds API](https://apis.io/apis/sinch/sinch-inbounds-api/)
- [Sinch Groups API](https://apis.io/apis/sinch/sinch-groups-api/)
- [Sinch 10DLC Brand Registration API](https://apis.io/apis/sinch/sinch-10dlc-brand-registration-api/)
- [Sinch 10DLC Campaign Registration API](https://apis.io/apis/sinch/sinch-10dlc-campaign-registration-api/)
- [Sinch Access Control List API](https://apis.io/apis/sinch/sinch-access-control-list-api/)
- [Sinch Access Control Lists API](https://apis.io/apis/sinch/sinch-access-control-lists-api/)

## Tags

Callbacks

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/sinch/sinch-callbacks-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/sinch/.