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Retell AI Create Phone Number API

The Create Phone Number API from Retell AI — 1 operation(s) for create phone number.

Retell AI Create Phone Number API is one of 78 APIs that Retell AI publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Create Phone Number. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an AsyncAPI specification, and pricing.

This API exposes 1 operation across 1 path, and defines 3 schemas. It is described by OpenAPI 3.0.3, at version 3.0.0.

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

1 operations 1 paths 3 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
3.0.0
Base URL
https://api.retellai.com
Authentication
HTTP Bearer
License
Resource Areas
1

Authentication & Security 1

Retell AI Create Phone Number API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (string) (api_key). By default, every request must be authenticated.

  • api_key — Authentication header containing API key (find it in dashboard). The format is "Bearer YOURAPIKEY"

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Create Phone Number 1
POST
/create-phone-number
Buy a new phone number & Bind agents
createPhoneNumber body → 201400401500

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are PhoneNumberResponse (16 properties), AgentWeight (3 properties). Each schema is shown below with its type and property counts.

PhoneNumberResponse
object
16 properties 3 required
AgentWeight
object
3 properties 2 required
AgentVersionReference
Agent version reference. Supports a numeric version (for example 3) or a tag/environment name (for example "prod"). When a tag is provided, resolution uses tha…

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

retell-ai-create-phone-number-api-openapi.yml Raw ↑

Other APIs Retell AI publishes across the network.

Retell AI Add Community Voice API
Retell AI Add Knowledge Base Sources API
Retell AI Agent Playground Completion API
Retell AI Clone Voice API
Retell AI Create Agent API
Retell AI Create Agent Version API
Retell AI Create Batch Call API
Retell AI Create Batch Test API
Retell AI Create Chat Agent API
Retell AI Create Chat API
Retell AI Create Chat Completion API
Retell AI Create Conversation Flow API