Telnyx · Schema
Update Call Request
CommunicationsCPaaSVoiceSMSIoTTelecommunicationsMessagingArtificial IntelligenceMCPVoice AIPhone NumbersInferenceNumber VerificationPhone VerificationOTP2FALookupVerifyNumber LookupCNAMIdentityFraud Prevention
Properties
| Name | Type | Description |
|---|---|---|
| FallbackMethod | string | HTTP request type used for `FallbackUrl`. |
| FallbackUrl | string | A failover URL for which Telnyx will retrieve the TeXML call instructions if the Url is not responding. |
| Method | string | HTTP request type used for `Url`. |
| Status | string | The value to set the call status to. Setting the status to completed ends the call. |
| StatusCallback | string | URL destination for Telnyx to send status callback events to for the call. |
| StatusCallbackMethod | string | HTTP request type used for `StatusCallback`. |
| Texml | string | TeXML to replace the current one with. |
| Url | string | The URL where TeXML will make a request to retrieve a new set of TeXML instructions to continue the call flow. |
JSON Schema
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"$id": "https://artifacts.apis.io/telnyx/json-schema/telnyx-update-call-request-schema.json",
"title": "Update Call Request",
"x-generated": "2026-10-30",
"x-method": "derived",
"x-generator": "derive-json-schema.py",
"x-source": "openapi/telnyx-texml-rest-commands-api-openapi.yml#/components/schemas/UpdateCallRequest",
"properties": {
"FallbackMethod": {
"description": "HTTP request type used for `FallbackUrl`.",
"enum": [
"GET",
"POST"
],
"type": "string"
},
"FallbackUrl": {
"description": "A failover URL for which Telnyx will retrieve the TeXML call instructions if the Url is not responding.",
"type": "string"
},
"Method": {
"description": "HTTP request type used for `Url`.",
"enum": [
"GET",
"POST"
],
"type": "string"
},
"Status": {
"description": "The value to set the call status to. Setting the status to completed ends the call.",
"type": "string"
},
"StatusCallback": {
"description": "URL destination for Telnyx to send status callback events to for the call.",
"type": "string"
},
"StatusCallbackMethod": {
"description": "HTTP request type used for `StatusCallback`.",
"enum": [
"GET",
"POST"
],
"type": "string"
},
"Texml": {
"description": "TeXML to replace the current one with.",
"type": "string"
},
"Url": {
"description": "The URL where TeXML will make a request to retrieve a new set of TeXML instructions to continue the call flow.",
"type": "string"
}
},
"type": "object"
}
Work with this as data
Every JSON Schema here is available over the APIs.io API and to AI agents over MCP.
MCP server
One button, every client — Claude, Cursor, VS Code and the rest.
https://apis.io/mcp
Tools for schemas
4 MCP tools reach this
find_json_schemasBrowse and filter every JSON Schema in the catalog.apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.resolveTurn a domain, URL or GitHub org into the provider it belongs to.find_cohortsEvery scored population of providers in the catalog.
Call it yourself
curl for this page
This JSON Schema
curl "https://apis.io/api/v1/json-schemas/telnyx-update-call-request"
All schemas
curl "https://apis.io/api/v1/json-schemas?limit=25"
Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.
Get an API key
Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.
A second provider on the same verified email joins the account you already have.