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Telnyx OAuth Protocol API

The OAuth Protocol API from Telnyx — 7 operation(s) for oauth protocol.

Telnyx OAuth Protocol API is one of 169 APIs that Telnyx publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include OAuth Protocol. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 7 operations across 7 paths, and defines 11 schemas. It is described by OpenAPI 3.2.0, at version 2.0.0.

Requests are made against a single base URL, https://api.telnyx.com/v2.

7 operations 7 paths 11 schemas 3 GET4 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
2.0.0
Base URL
https://api.telnyx.com/v2
Authentication
HTTP Bearer, HTTP Bearer, OAuth 2.0, HTTP Bearer, HTTP Bearer, HTTP Bearer
Resource Areas
1

Authentication & Security 6

Telnyx OAuth Protocol API declares 6 security schemes for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). It accepts HTTP bearer tokens (branded-calling_bearerAuth). It supports OAuth 2.0 (oauthClientAuth) using the authorizationCode and clientCredentials flows, exposing 1 scope. It accepts HTTP bearer tokens (JWT) (outbound-voice-profiles_bearerAuth). It accepts HTTP bearer tokens (pronunciation-dicts_bearerAuth). It accepts HTTP bearer tokens (JWT) (stored-payment-transactions_bearerAuth). By default, every request must be authenticated.

  • branded-calling_bearerAuth — API key passed as a Bearer token in the Authorization header
  • oauthClientAuth — OAuth 2.0 authentication for Telnyx API and MCP integrations
  • pronunciation-dicts_bearerAuth — Telnyx API v2 key. Obtain from https://portal.telnyx.com

Paths & Operations 7

Across 7 paths, the API surfaces 7 operations — 3 GET, 4 POST. Each is listed below with its method, path, parameters, and response codes.

OAuth Protocol 7
GET
/oauth/authorize
OAuth authorization endpoint
AuthorizeOAuth 7 params → 200302400404422
GET
/oauth/consent/{consent_token}
Get OAuth consent token
GetOAuthConsentToken 1 param → 200422
POST
/oauth/grants
Create OAuth grant
CreateOAuthGrant body → 200422
POST
/oauth/introspect
Token introspection
IntrospectOAuthToken body → 200400401
GET
/oauth/jwks
JSON Web Key Set
GetOAuthJWKS → 200400401
POST
/oauth/register
Dynamic client registration
RegisterOAuthClient body → 201400
POST
/oauth/token
OAuth token endpoint
ExchangeOAuthToken body → 200400401

Schemas 11

The contract defines 11 schemas that model the data the API accepts and returns. The most detailed are OAuthDynamicRegistrationResponse (12 properties), OAuthDynamicRegistrationRequest (9 properties), TokenRequest (8 properties), IntrospectResponse (7 properties). Each schema is shown below with its type and property counts.

JWKSet
object
1 property
TokenRequest
object
8 properties 1 required
TokenResponse
object
5 properties 3 required
ConsentTokenResponse
object
1 property
OAuthDynamicRegistrationResponse
object
12 properties 2 required
IntrospectResponse
object
7 properties 1 required
CreateOAuthGrantRequest
object
2 properties 2 required
IntrospectRequest
object
1 property 1 required
CreateGrantResponse
object
1 property 1 required
oauth_Error
object
2 properties 1 required
OAuthDynamicRegistrationRequest
object
9 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

telnyx-oauth-protocol-api-openapi.yml Raw ↑

Other APIs Telnyx publishes across the network.

Telnyx Access Tokens API
Telnyx Addresses API
Telnyx Advanced Number Orders API
Telnyx Assistants API
Telnyx Audio API
Telnyx Audit Logs API
Telnyx Authentication Providers API
Telnyx AutoRechargePreferences API
Telnyx Billing API
Telnyx Billing Groups API
Telnyx Brands API
Telnyx Bucket SSL Certificate API
Where this information came from

This is an independent, third-party profile of Telnyx OAuth Protocol API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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