Vocode

Vocode is an open-source Python library (vocode-core, MIT licensed) for building real-time, streaming voice AI agents that run over phone calls, plus a hosted REST API at https://api.vocode.dev/v1 (Bearer API key) for placing and managing outbound and inbound phone calls, configuring agents, voices, prompts, actions, phone numbers, and webhooks without operating the streaming infrastructure yourself.

Vocode publishes 7 APIs on the APIs.io network, including Actions API, Agents API, Calls API, and 4 more. Tagged areas include Voice AI, Voice Agents, Telephony, Conversational AI, and Phone Calls.

Vocode’s developer surface includes authentication, documentation, and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub
39.0/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-08-05 · rubric v0.9.1
AccessFreemiumSelf serve⚡ Free to try
9 APIs
Voice AIVoice AgentsTelephonyConversational AIPhone Calls

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-05 · rubric v0.9.1
Composite quality — 39.0/100 · thin
Contract Quality 15.0 / 25
Developer Ergonomics 3.9 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 31/100 · 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 0 / 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/vocode: 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 9

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

Vocode Realtime Streaming Conversation

Real-time, bidirectional streaming conversation pipeline (StreamingConversation) in the open-source library that wires transcription, agent response, and synthesis together; the...

Vocode Open Source Library

vocode-core, the MIT-licensed Python library for building voice-based LLM agents with pluggable STT, LLM, and TTS providers and Twilio/Vonage telephony, self-hosted and free, di...

Vocode Actions API

The Actions API from Vocode — 4 operation(s) for actions.

Vocode Agents API

The Agents API from Vocode — 4 operation(s) for agents.

Vocode Calls API

The Calls API from Vocode — 5 operation(s) for calls.

Vocode Numbers API

The Numbers API from Vocode — 6 operation(s) for numbers.

Vocode Usage API

The Usage API from Vocode — 1 operation(s) for usage.

Vocode Voices API

The Voices API from Vocode — 4 operation(s) for voices.

Vocode Webhooks API

The Webhooks API from Vocode — 4 operation(s) for webhooks.

Scroll for all 9

Open Collections 1

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

Vocode Hosted API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Vocode Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Vocode Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Vocode Finops

FINOPS

Security Posture 2

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

Vocode Authentication

http · 1 scheme

SECURITY

Vocode Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Vocode Agentic Access

28 operations · 14 acting

28 operations · 14 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 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: vocode
url: https://raw.githubusercontent.com/api-evangelist/vocode/refs/heads/main/apis.yml
name: Vocode
kind: company
description: Vocode is an open-source Python library (vocode-core, MIT licensed) for building real-time, streaming voice AI
  agents that run over phone calls, plus a hosted REST API at https://api.vocode.dev/v1 (Bearer API key) for placing and managing
  outbound and inbound phone calls, configuring agents, voices, prompts, actions, phone numbers, and webhooks without operating
  the streaming infrastructure yourself.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · 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/vocode.png
tags:
- Voice AI
- Voice Agents
- Telephony
- Conversational AI
- Phone Calls
created: '2026-06-21'
modified: '2026-06-21'
specificationVersion: '0.19'
apis:
- aid: vocode:vocode-realtime-streaming
  name: Vocode Realtime Streaming Conversation
  tags:
  - Realtime
  - Streaming
  - WebSocket
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.vocode.dev/open-source/how-it-works
  baseURL: https://api.vocode.dev/v1
  properties:
  - url: https://docs.vocode.dev/open-source/how-it-works
    type: Documentation
  - url: https://github.com/vocodedev/vocode-core/blob/main/vocode/streaming/streaming_conversation.py
    type: GitHub
  - url: review.yml
    type: Review
  description: Real-time, bidirectional streaming conversation pipeline (StreamingConversation) in the open-source library
    that wires transcription, agent response, and synthesis together; the hosted platform consumes telephony media-stream
    WebSockets, but no public client-facing wss conversation endpoint is documented in the hosted REST API.
- aid: vocode:vocode-oss-library
  name: Vocode Open Source Library
  tags:
  - Open Source
  - Python
  - Library
  - SDK
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.vocode.dev/open-source/what-is-vocode
  baseURL: https://github.com/vocodedev/vocode-core
  properties:
  - url: https://docs.vocode.dev/open-source/what-is-vocode
    type: Documentation
  - url: https://github.com/vocodedev/vocode-core
    type: GitHub
  description: vocode-core, the MIT-licensed Python library for building voice-based LLM agents with pluggable STT, LLM, and
    TTS providers and Twilio/Vonage telephony, self-hosted and free, distinct from the hosted Vocode API.
- aid: vocode:vocode-actions-api
  name: Vocode Actions API
  description: The Actions API from Vocode — 4 operation(s) for actions.
  humanURL: https://docs.vocode.dev/api-reference/calls/create-call
  baseURL: https://api.vocode.dev/v1
  tags:
  - Actions
  properties:
  - type: OpenAPI
    url: openapi/vocode-actions-api-openapi.yml
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/calls/create-call
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/calls/get-call
  - type: Postman
    url: collections/vocode.postman_collection.json
  - type: OpenCollection
    url: collections/vocode.opencollection.json
  - type: GitHub
    url: https://github.com/vocodedev/vocode-core
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/agents/create-agent
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/agents/get-agent
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/numbers/buy-number
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/numbers/get-number
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/actions/create-action
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/actions/get-action
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/voices/create-voice
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/voices/get-voice
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/webhooks/create-webhook
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/webhooks/get-webhook
- aid: vocode:vocode-agents-api
  name: Vocode Agents API
  description: The Agents API from Vocode — 4 operation(s) for agents.
  humanURL: https://docs.vocode.dev/api-reference/calls/create-call
  baseURL: https://api.vocode.dev/v1
  tags:
  - Agents
  properties:
  - type: OpenAPI
    url: openapi/vocode-agents-api-openapi.yml
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/calls/create-call
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/calls/get-call
  - type: Postman
    url: collections/vocode.postman_collection.json
  - type: OpenCollection
    url: collections/vocode.opencollection.json
  - type: GitHub
    url: https://github.com/vocodedev/vocode-core
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/agents/create-agent
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/agents/get-agent
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/numbers/buy-number
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/numbers/get-number
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/actions/create-action
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/actions/get-action
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/voices/create-voice
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/voices/get-voice
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/webhooks/create-webhook
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/webhooks/get-webhook
- aid: vocode:vocode-calls-api
  name: Vocode Calls API
  description: The Calls API from Vocode — 5 operation(s) for calls.
  humanURL: https://docs.vocode.dev/api-reference/calls/create-call
  baseURL: https://api.vocode.dev/v1
  tags:
  - Calls
  properties:
  - type: OpenAPI
    url: openapi/vocode-calls-api-openapi.yml
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/calls/create-call
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/calls/get-call
  - type: Postman
    url: collections/vocode.postman_collection.json
  - type: OpenCollection
    url: collections/vocode.opencollection.json
  - type: GitHub
    url: https://github.com/vocodedev/vocode-core
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/agents/create-agent
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/agents/get-agent
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/numbers/buy-number
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/numbers/get-number
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/actions/create-action
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/actions/get-action
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/voices/create-voice
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/voices/get-voice
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/webhooks/create-webhook
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/webhooks/get-webhook
- aid: vocode:vocode-numbers-api
  name: Vocode Numbers API
  description: The Numbers API from Vocode — 6 operation(s) for numbers.
  humanURL: https://docs.vocode.dev/api-reference/calls/create-call
  baseURL: https://api.vocode.dev/v1
  tags:
  - Numbers
  properties:
  - type: OpenAPI
    url: openapi/vocode-numbers-api-openapi.yml
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/calls/create-call
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/calls/get-call
  - type: Postman
    url: collections/vocode.postman_collection.json
  - type: OpenCollection
    url: collections/vocode.opencollection.json
  - type: GitHub
    url: https://github.com/vocodedev/vocode-core
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/agents/create-agent
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/agents/get-agent
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/numbers/buy-number
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/numbers/get-number
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/actions/create-action
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/actions/get-action
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/voices/create-voice
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/voices/get-voice
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/webhooks/create-webhook
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/webhooks/get-webhook
- aid: vocode:vocode-usage-api
  name: Vocode Usage API
  description: The Usage API from Vocode — 1 operation(s) for usage.
  humanURL: https://docs.vocode.dev/api-reference/calls/create-call
  baseURL: https://api.vocode.dev/v1
  tags:
  - Usage
  properties:
  - type: OpenAPI
    url: openapi/vocode-usage-api-openapi.yml
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/calls/create-call
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/calls/get-call
  - type: Postman
    url: collections/vocode.postman_collection.json
  - type: OpenCollection
    url: collections/vocode.opencollection.json
  - type: GitHub
    url: https://github.com/vocodedev/vocode-core
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/agents/create-agent
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/agents/get-agent
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/numbers/buy-number
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/numbers/get-number
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/actions/create-action
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/actions/get-action
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/voices/create-voice
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/voices/get-voice
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/webhooks/create-webhook
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/webhooks/get-webhook
- aid: vocode:vocode-voices-api
  name: Vocode Voices API
  description: The Voices API from Vocode — 4 operation(s) for voices.
  humanURL: https://docs.vocode.dev/api-reference/calls/create-call
  baseURL: https://api.vocode.dev/v1
  tags:
  - Voices
  properties:
  - type: OpenAPI
    url: openapi/vocode-voices-api-openapi.yml
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/calls/create-call
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/calls/get-call
  - type: Postman
    url: collections/vocode.postman_collection.json
  - type: OpenCollection
    url: collections/vocode.opencollection.json
  - type: GitHub
    url: https://github.com/vocodedev/vocode-core
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/agents/create-agent
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/agents/get-agent
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/numbers/buy-number
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/numbers/get-number
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/actions/create-action
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/actions/get-action
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/voices/create-voice
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/voices/get-voice
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/webhooks/create-webhook
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/webhooks/get-webhook
- aid: vocode:vocode-webhooks-api
  name: Vocode Webhooks API
  description: The Webhooks API from Vocode — 4 operation(s) for webhooks.
  humanURL: https://docs.vocode.dev/api-reference/calls/create-call
  baseURL: https://api.vocode.dev/v1
  tags:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/vocode-webhooks-api-openapi.yml
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/calls/create-call
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/calls/get-call
  - type: Postman
    url: collections/vocode.postman_collection.json
  - type: OpenCollection
    url: collections/vocode.opencollection.json
  - type: GitHub
    url: https://github.com/vocodedev/vocode-core
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/agents/create-agent
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/agents/get-agent
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/numbers/buy-number
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/numbers/get-number
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/actions/create-action
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/actions/get-action
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/voices/create-voice
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/voices/get-voice
  - type: Documentation
    url: https://docs.vocode.dev/api-reference/webhooks/create-webhook
  - type: APIReference
    url: https://docs.vocode.dev/api-reference/webhooks/get-webhook
common:
- type: AgenticAccess
  url: agentic-access/vocode-agentic-access.yml
- type: DomainSecurity
  url: security/vocode-domain-security.yml
- type: Authentication
  url: authentication/vocode-authentication.yml
- type: GitHubOrganization
  url: https://github.com/vocodedev
- type: LinkedIn
  url: https://www.linkedin.com/company/vocode
- type: Website
  url: https://www.vocode.dev
- type: Documentation
  url: https://docs.vocode.dev
- type: Plans
  url: plans/vocode-plans-pricing.yml
- type: RateLimits
  url: rate-limits/vocode-rate-limits.yml
- type: FinOps
  url: finops/vocode-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com