Telnyx x402 Payment Transactions API
Operations for x402 cryptocurrency payment transactions. Fund your Telnyx account using USDC stablecoin payments via the x402 protocol.
Telnyx x402 Payment Transactions API is one of 168 APIs that Telnyx publishes on the APIs.io network, described by a machine-readable OpenAPI specification.
Tagged areas include x402 Payment Transactions. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.
This API exposes 2 operations across 2 paths, and defines 7 schemas. It is described by OpenAPI 3.1.0, at version 2.0.0.
Requests are made against a single base URL, https://api.telnyx.com/v2.
Metadata
The identity and technical contract details declared by the specification.
Authentication & Security 6
Telnyx x402 Payment Transactions 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 headeroauthClientAuth— OAuth 2.0 authentication for Telnyx API and MCP integrationspronunciation-dicts_bearerAuth— Telnyx API v2 key. Obtain from https://portal.telnyx.com
Paths & Operations 2
Across 2 paths, the API surfaces 2 operations — 2 POST. Each is listed below with its method, path, parameters, and response codes.
Operations for x402 cryptocurrency payment transactions. Fund your Telnyx account using USDC stablecoin payments via the x402 protocol.
Schemas 7
The contract defines 7 schemas that model the data the API accepts and returns. The most detailed are X402PaymentRequirements (3 properties), X402SettleRequest (2 properties), X402TransactionResponse (1 property), X402QuoteResponse (1 property). Each schema is shown below with its type and property counts.
Specification
The full machine-readable OpenAPI contract behind this narrative.
Source
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Other APIs Telnyx publishes across the network.