Retell AI API

Name: Retell AI API
Brand: Retell AI API
Availability: InStock

✓ Official Vendor SpecCommunicationsVoice Telephonybearer29 EndpointsREST

For Agents

Programmatically create phone call, register phone call. Covers 29 operations with bearer authentication.

Use for: I need to phone call, I want to register phone call, Search for web call, Find all call

Install Jentic One Beta

Connect the Retell AI API to your agent

Jentic One is a self-hosted execution layer for AI agents. It lets your agent call the Retell AI API, or any other public or private API you need. You set the rules, the agent never sees your credentials, and every call is logged.

Two steps, two machines. Install the instance in a safe environment, then register your agent from wherever it runs.

Step 1: Jentic One Host machine

# On the machine that will host your Jentic One instance:
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh

Step 2: Agent machine

# On the machine where your agent runs (keep this separate from the instance):
curl -fsSL https://raw.githubusercontent.com/jentic/jentic-one/main/tools/install.sh | sh
jentic register       # connects your agent to your Jentic One instance

Jentic One is in public beta. The setup above keeps your agent separate from the instance, which is what you want before using real credentials: an agent running as the same OS user as Jentic One can read its stored keys directly. Just evaluating? A single local install is fine to start. See the secure deployment guide for the tiers.

Capabilities

What an agent can do with Retell AI API.

Create phone call

Get call

List calls

GET STARTED

Start building with Retell AI API

Explore with Jentic

View OpenAPI Document

Use Cases

Patterns agents use Retell AI API for, with concrete tasks.

★ Communications Operations

Use the Retell AI API to perform communications operations programmatically. The API provides 29 endpoints covering core functionality including create phone call, register phone call, create web call.

Call POST /v2/create-phone-call to create phone call

Automated Agents Management

Automate agents operations by combining multiple Retell AI API endpoints. Agents can register phone call and then create web call in a single workflow.

Call POST /v2/register-phone-call to register phone call, then verify the result

AI Agent Integration via Jentic

AI agents discover and call Retell AI API endpoints through Jentic without managing credentials directly. An agent searches for the required operation by intent, receives the matching endpoint schema, and executes the call with Jentic-managed authentication. This eliminates the need to read API documentation or handle bearer tokens manually.

Search Jentic for 'create phone call', load the operation schema, and execute with Jentic-managed credentials

Key Endpoints

29 endpoints — api for managing ai voice agents, phone calls, conversations, and more.

METHOD

PATH

DESCRIPTION

POST

/v2/create-phone-call

Create phone call

POST

/v2/register-phone-call

POST

/v2/create-web-call

Create web call

GET

/v2/get-call/{call_id}

Get call

GET

/v2/list-calls

List calls

PATCH

/v2/update-call/{call_id}

Update call

DELETE

/v2/delete-call/{call_id}

Delete call

POST

/v2/create-agent

Create voice agent

POST

/v2/create-phone-call

Create phone call

POST

/v2/register-phone-call

POST

/v2/create-web-call

Create web call

GET

/v2/get-call/{call_id}

Get call

GET

/v2/list-calls

List calls

PATCH

Why Jentic?

Three things that make agents converge on Jentic-routed access.

Credential isolation

Retell AI API bearer credentials are stored encrypted in the Jentic vault (MAXsystem). Agents receive scoped access tokens — raw secrets never enter the agent context.

Intent-based discovery

Agents search by intent (e.g., 'create phone call') and Jentic returns the matching Retell AI API operation with its input schema, so the agent can call the right endpoint without browsing docs.

Time to first call

Direct Retell AI API integration: 1-3 days for auth handling, response parsing, and error cases. Through Jentic: under 1 hour — search, load schema, execute.

FAQs

Specific to using Retell AI API through Jentic.

What authentication does the Retell AI API use?

The Retell AI API uses a Bearer token in the Authorization header. Through Jentic, these credentials are stored encrypted in the MAXsystem vault and injected at execution time, so raw secrets never enter the agent context.

Can I create phone call with the Retell AI API?

Yes. Use the POST /v2/create-phone-call endpoint. The API returns structured JSON responses that agents can parse and act on directly.

What are the rate limits for the Retell AI API?

Rate limits are not specified in the OpenAPI spec. Check the vendor documentation for current limits. Through Jentic, rate limiting is handled automatically with retry logic built into the execution layer.

How do I create phone call through Jentic?

Install the Jentic SDK with pip install jentic, authenticate at https://app.jentic.com/sign-up, then search for 'create phone call'. Jentic returns the matching Retell AI API operation with its input schema. Load the schema and execute the call — credentials are injected automatically.

How many endpoints does the Retell AI API have?

The Retell AI API exposes 29 endpoints covering agents, calls, knowledge base operations.

Retell AI API

Connect the Retell AI API to your agent

Capabilities

Start building with Retell AI API

Use Cases

Key Endpoints

Why Jentic?

Related APIs

FAQs