Retell AI

Retell AI is a platform to build, test, and deploy AI voice agents for phone calls. Its conversational voice API orchestrates LLM responses, telephony, speech, and call analysis so developers can place and receive natural-sounding automated calls, with a real-time WebSocket for bringing your own custom LLM and streaming call audio.

Retell AI publishes 11 APIs on the APIs.io network, including Agent API, Batch Call API, Call API, and 8 more. Tagged areas include AI, Voice, Voice Agents, Conversational AI, and Telephony.

The Retell AI catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Retell AI’s developer surface includes authentication, documentation, engineering blog, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
41.8/100 thin ▬ flat Agent 32/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessPaidSelf serve
11 APIs
AIVoiceVoice AgentsConversational AITelephony

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 41.8/100 · thin
Contract Quality 16.8 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 5.0 / 12
Discoverability 7.4 / 10
Agent readiness — 32/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/retell: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 11

Individual APIs this provider publishes, each with its own machine-readable definition.

Retell AI Agent API

The Agent API from Retell AI — 5 operation(s) for agent.

Retell AI Batch Call API

The Batch Call API from Retell AI — 1 operation(s) for batch call.

Retell AI Call API

The Call API from Retell AI — 2 operation(s) for call.

Retell AI Concurrency API

The Concurrency API from Retell AI — 1 operation(s) for concurrency.

Retell AI Conversation Flow API

The Conversation Flow API from Retell AI — 5 operation(s) for conversation flow.

Retell AI Knowledge Base API

The Knowledge Base API from Retell AI — 6 operation(s) for knowledge base.

Retell AI Phone Call API

The Phone Call API from Retell AI — 1 operation(s) for phone call.

Retell AI Phone Number API

The Phone Number API from Retell AI — 6 operation(s) for phone number.

Retell AI Retell LLM API

The Retell LLM API from Retell AI — 5 operation(s) for retell llm.

Retell AI Voice API

The Voice API from Retell AI — 2 operation(s) for voice.

Retell AI Web Call API

The Web Call API from Retell AI — 1 operation(s) for web call.

Scroll for all 11

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Retell AI API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Retell Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Retell Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Retell Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Retell AI Custom LLM WebSocket

AsyncAPI 2.6 description of Retell AI's real-time **Custom LLM WebSocket** surface, documented at https://docs.retellai.com/api-references/llm-websocket. Unlike a one-way HTTP s...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Retell AI API Rules

6 rules · 1 errors 5 warnings

SPECTRAL

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Retell Authentication

http · 1 scheme

SECURITY

Retell Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Retell Agentic Access

35 operations · 21 acting

35 operations · 21 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: retell
url: https://raw.githubusercontent.com/api-evangelist/retell/refs/heads/main/apis.yml
name: Retell AI
kind: company
description: Retell AI is a platform to build, test, and deploy AI voice agents for phone calls. Its conversational voice
  API orchestrates LLM responses, telephony, speech, and call analysis so developers can place and receive natural-sounding
  automated calls, with a real-time WebSocket for bringing your own custom LLM and streaming call audio.
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/retell.png
tags:
- AI
- Voice
- Voice Agents
- Conversational AI
- Telephony
created: '2026-07-01'
modified: '2026-07-01'
specificationVersion: '0.19'
apis:
- aid: retell:retell-agent-api
  name: Retell AI Agent API
  description: The Agent API from Retell AI — 5 operation(s) for agent.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Agent
  properties:
  - type: OpenAPI
    url: openapi/retell-agent-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
- aid: retell:retell-batch-call-api
  name: Retell AI Batch Call API
  description: The Batch Call API from Retell AI — 1 operation(s) for batch call.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Batch Call
  properties:
  - type: OpenAPI
    url: openapi/retell-batch-call-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
- aid: retell:retell-call-api
  name: Retell AI Call API
  description: The Call API from Retell AI — 2 operation(s) for call.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Call
  properties:
  - type: OpenAPI
    url: openapi/retell-call-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
- aid: retell:retell-concurrency-api
  name: Retell AI Concurrency API
  description: The Concurrency API from Retell AI — 1 operation(s) for concurrency.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Concurrency
  properties:
  - type: OpenAPI
    url: openapi/retell-concurrency-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
- aid: retell:retell-conversation-flow-api
  name: Retell AI Conversation Flow API
  description: The Conversation Flow API from Retell AI — 5 operation(s) for conversation flow.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Conversation Flow
  properties:
  - type: OpenAPI
    url: openapi/retell-conversation-flow-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
- aid: retell:retell-knowledge-base-api
  name: Retell AI Knowledge Base API
  description: The Knowledge Base API from Retell AI — 6 operation(s) for knowledge base.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Knowledge Base
  properties:
  - type: OpenAPI
    url: openapi/retell-knowledge-base-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
- aid: retell:retell-phone-call-api
  name: Retell AI Phone Call API
  description: The Phone Call API from Retell AI — 1 operation(s) for phone call.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Phone Call
  properties:
  - type: OpenAPI
    url: openapi/retell-phone-call-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
- aid: retell:retell-phone-number-api
  name: Retell AI Phone Number API
  description: The Phone Number API from Retell AI — 6 operation(s) for phone number.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Phone Number
  properties:
  - type: OpenAPI
    url: openapi/retell-phone-number-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
- aid: retell:retell-retell-llm-api
  name: Retell AI Retell LLM API
  description: The Retell LLM API from Retell AI — 5 operation(s) for retell llm.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Retell LLM
  properties:
  - type: OpenAPI
    url: openapi/retell-retell-llm-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
- aid: retell:retell-voice-api
  name: Retell AI Voice API
  description: The Voice API from Retell AI — 2 operation(s) for voice.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Voice
  properties:
  - type: OpenAPI
    url: openapi/retell-voice-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
- aid: retell:retell-web-call-api
  name: Retell AI Web Call API
  description: The Web Call API from Retell AI — 1 operation(s) for web call.
  humanURL: https://docs.retellai.com/api-references/create-agent
  baseURL: https://api.retellai.com
  tags:
  - Web Call
  properties:
  - type: OpenAPI
    url: openapi/retell-web-call-api-openapi.yml
  - type: Documentation
    url: https://docs.retellai.com/build/create-your-first-agent
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-agent
  - type: Documentation
    url: https://docs.retellai.com/build/llms/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-retell-llm
  - type: Documentation
    url: https://docs.retellai.com/build/conversation-flow/overview
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-conversation-flow
  - type: Documentation
    url: https://docs.retellai.com/make-calls/outbound-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-call
  - type: Documentation
    url: https://docs.retellai.com/make-calls/web-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-web-call
  - type: AsyncAPI
    url: asyncapi/retell-asyncapi.yml
  - type: Documentation
    url: https://docs.retellai.com/deploy/phone-number
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-phone-number
  - type: Documentation
    url: https://docs.retellai.com/build/voices
  - type: APIReference
    url: https://docs.retellai.com/api-references/list-voices
  - type: Documentation
    url: https://docs.retellai.com/build/knowledge-base
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-knowledge-base
  - type: Documentation
    url: https://docs.retellai.com/make-calls/batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/create-batch-call
  - type: APIReference
    url: https://docs.retellai.com/api-references/get-concurrency
  - type: RateLimits
    url: rate-limits/retell-rate-limits.yml
common:
- type: AgenticAccess
  url: agentic-access/retell-agentic-access.yml
- type: DomainSecurity
  url: security/retell-domain-security.yml
- type: Authentication
  url: authentication/retell-authentication.yml
- type: GitHubOrganization
  url: https://github.com/RetellAI
- type: LinkedIn
  url: https://www.linkedin.com/company/retell-ai
- type: Website
  url: https://www.retellai.com/
- type: Documentation
  url: https://docs.retellai.com
- type: Plans
  url: plans/retell-plans-pricing.yml
- type: RateLimits
  url: rate-limits/retell-rate-limits.yml
- type: FinOps
  url: finops/retell-finops.yml
- type: Blog
  url: https://www.retellai.com/blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com