Sinch

Sinch Payloads API

SVAML (Sinch Voice API Markup Language) is a JSON-based markup language used to define call flows and control the behavior of voice calls in the Sinch Voice API. It allows developers to specify commands that dictate how calls are handled, including dialing, playing messages, gathering input, and more. SVAML is used in various contexts within the Voice API, including: - **Call Creation**: When initiating outbound calls via the API. - **Webhooks**: When responding to call events with commands to control the ongoing call flow. - **Batch Calls**: When defining call flows for multiple calls in a batch operation.

Documentation GitHub OpenAPI

Operations 2

POST /v2/projects/{projectId}/svaml/describe Describe the call flow from the SVAML payload #

POST /v2/projects/{projectId}/svaml/validate Validate a SVAML payload #

Documentation

https://developers.sinch.com/docs/conversation

https://developers.sinch.com/docs/conversation/api-reference/template

https://developers.sinch.com/docs/est

https://developers.sinch.com/docs/est/api-reference/est

https://developers.sinch.com/docs/fax

https://developers.sinch.com/docs/fax/api-reference/fax

https://developers.sinch.com/docs/number-lookup-api-v2

https://developers.sinch.com/docs/number-lookup-api-v2/api-reference/number-lookup-v2

https://developers.sinch.com/docs/numbers

https://developers.sinch.com/docs/numbers/api-reference/imported-hosting

https://developers.sinch.com/docs/numbers/api-reference/numbers

https://developers.sinch.com/docs/numbers/api-reference/porting

https://developers.sinch.com/docs/provisioning-api

https://developers.sinch.com/docs/provisioning-api/api-reference/provisioning-api-1

https://developers.sinch.com/docs/verification

https://developers.sinch.com/docs/verification/api-reference/verification

https://developers.sinch.com/docs/voice-2.0

https://developers.sinch.com/docs/voice-2.0/api-reference/voice

https://developers.sinch.com/docs/10dlc-registration

https://developers.sinch.com/docs/10dlc-registration/api-reference/10dlc-registration

https://developers.sinch.com/docs/accesskeys

https://developers.sinch.com/docs/accesskeys/api-reference/oldaccesskeys

https://developers.sinch.com/docs/accesskeys/api-reference/accesskeys

https://developers.sinch.com/docs/campaigns

https://developers.sinch.com/docs/campaigns/api-reference/campaigns

https://developers.sinch.com/docs/chatlayer-analytics

https://developers.sinch.com/docs/chatlayer-analytics/api-reference/chatlayer-analytics

https://developers.sinch.com/docs/compliance-center

https://developers.sinch.com/docs/compliance-center/api-reference/compliance-brands

https://developers.sinch.com/docs/subprojects

https://developers.sinch.com/docs/subprojects/api-reference/subprojects

Specifications

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/openapi/sinch-payloads-api-openapi.yml

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/asyncapi/sinch-verification-callbacks-asyncapi.yml

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/asyncapi/sinch-voice-callbacks-asyncapi.yml

Schemas & Data

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-v2-template-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-v2-list-translations-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-v2-list-templates-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-call-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-sip-trunk-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-sip-endpoint-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-ip-range-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-access-control-list-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-number-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-fax-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-service-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-template-by-name-response-schema.json

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https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-cover-page-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-number-lookup-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-number-lookup-request-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-hosting-order-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-qualified-number-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-text-enable-numbers-request-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-hosting-order-number-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-imported-number-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-list-imported-numbers-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-active-number-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-rent-any-number-request-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-validate-address-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-number-order-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-create-number-order-request-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-registration-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-order-list-item-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-defaults-configuration-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-pagination-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-voice-configuration-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-order-document-base-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-port-in-order-group-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-whatsapp-account-dto-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-whatsapp-sender-dto-schema.json

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https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-webhook-webhook-input-dto-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-webhook-update-webhook-input-dto-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-verification-report-request-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-batch-summary-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-session-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-call-request-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-service-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-validate-svaml-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-create-tcr-campaign-request-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-access-key-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-create-access-key-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-list-access-keys-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-create-access-key-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-update-access-key-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-campaign-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-carrier-order-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-note-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-list-campaign-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-campaign-attachment-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-create-campaign-request-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-get-flow-step-details-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-get-conversation-flow-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-funnel-step-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-funnel-step-filter-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-get-intents-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-list-event-definitions-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-brand-order-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-brand-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-attachment-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-import-brand-request-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-create-brand-request-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-callback-config-response-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-subproject-schema.json

https://raw.githubusercontent.com/api-evangelist/sinch/refs/heads/main/json-schema/sinch-list-subprojects-response-schema.json

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OpenAPI Specification

openapi: 3.2.0
info:
  title: Sinch Payloads API
  version: 2.0.58
  contact:
    name: Sinch Support
    url: https://sinch.com/help-center/
    email: support@sinch.com
  license:
    name: Sinch License
    url: https://www.sinch.com/legal/
  termsOfService: https://www.sinch.com/terms-of-service/
  x-sinch-standards-version: standards-2026-03-31
  description: 'Operations tagged Payloads across 2 of this provider''s published API definitions: sinch-voice-api-v2-openapi.yaml, sinch-voice-api-v2-openapi.yml. Each path carries the servers of the definition it was published in.'
servers:
- url: https://voice.api.sinch.com
  description: Endpoint which enables consuming the Voice API globally - Redirected by Sinch to the closest region.
- url: https://us1.voice.api.sinch.com
  description: North America 1 - East
- url: https://br1.voice.api.sinch.com
  description: South America 1 - East
- url: https://eu1.voice.api.sinch.com
  description: Europe 1 - Central
- url: https://sg1.voice.api.sinch.com
  description: Asia Pacific 1 - Southeast
- url: https://au1.voice.api.sinch.com
  description: Australia & Oceania 1 - Southeast
security:
- BasicAuth: []
- SinchOAuth2: []
tags:


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