Telefon website screenshot

Telefon

Telefon is a cloud-based programmable communications platform providing voice calling, SMS messaging, number management, and call recording APIs for developers and enterprises. The platform enables applications to make and receive phone calls, send SMS and MMS messages, manage phone number inventories, and record calls for compliance and quality assurance purposes. Telefon supports global coverage across 180+ countries with competitive per-minute and per-message pricing.

Telefon publishes 7 APIs on the APIs.io network, including Available Numbers API, Calls API, Conferences API, and 4 more. Tagged areas include Call Recording, Communications, CPaaS, Global Coverage, and Messaging.

The Telefon catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Telefon’s developer surface includes authentication, getting-started guide, support, engineering blog, changelog, pricing, GitHub presence, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
55.5/100 developing ▼ -6.1 Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessEnterpriseSelf serve
7 APIs
Call RecordingCommunicationsCPaaSGlobal CoverageMessagingNumber ProvisioningSMSTelephonyVoiceVoIP

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 55.5/100 · developing
Contract Quality 16.5 / 25
Developer Ergonomics 7.8 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 7.5 / 13
Governance 7.0 / 12
Discoverability 8.2 / 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/telefon: 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 7

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

Telefon Available Numbers API

Search for available numbers to purchase

Telefon Calls API

Make and manage phone calls

Telefon Conferences API

Multi-party conferencing

Telefon Messages API

Send and receive SMS and MMS messages

Telefon Owned Numbers API

Manage numbers in your account

Telefon Recordings API

Call recording management

Telefon Transcriptions API

Recording transcription management

Scroll for all 7

Postman Collections 7

Ready-to-run Postman collections for exercising this provider's APIs.

Telefon Number Management Available Numbers API

POSTMAN

Telefon Number Management Available Numbers Calls API

POSTMAN

Telefon Number Management Available Numbers Conferences API

POSTMAN

Telefon Number Management Available Numbers Messages API

POSTMAN

Telefon Number Management Available Numbers Owned Numbers API

POSTMAN

Telefon Number Management Available Numbers Recordings API

POSTMAN

Telefon Number Management Available Numbers Transcriptions API

POSTMAN

Scroll for all 7

Open Collections 4

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

Telefon Number Management API

OPEN COLLECTION

Telefon Call Recording API

OPEN COLLECTION

Telefon SMS API

OPEN COLLECTION

Telefon Voice API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Telefon Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Telefon Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

Telefon Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Telefon Context

6 classes · 20 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Telefon API Rules

5 rules · 4 warnings 1 info

SPECTRAL

Telefon API Rules

9 rules · 3 errors 4 warnings 2 info

SPECTRAL

JSON Schema 1

Standalone JSON Schema definitions for this provider's data models.

Telefon Call

11 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Telefon Call Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Telefon Create Call Example

2 fields

EXAMPLE

Telefon Send Sms Example

2 fields

EXAMPLE

Security Posture 2

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

Telefon Authentication

apiKey · 1 scheme

SECURITY

Telefon Domain Security

DMARC

SECURITY

Agentic Access 1

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

Telefon Agentic Access

20 operations · 9 acting

20 operations · 9 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 LlmsText
LlmsText

Build 3

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace
PostmanWorkspace
 SDKs
SDKs
 GitHub
GitHub

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 Authentication
Authentication

Operate 3

Status, limits, changes, and where to get help

StatusPage
StatusPage
 Support
Support
 ChangeLog
ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Pricing
Pricing

Company 1

The organization behind the API

Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
name: Telefon
description: Telefon is a cloud-based programmable communications platform providing voice calling, SMS messaging, number
  management, and call recording APIs for developers and enterprises. The platform enables applications to make and receive
  phone calls, send SMS and MMS messages, manage phone number inventories, and record calls for compliance and quality assurance
  purposes. Telefon supports global coverage across 180+ countries with competitive per-minute and per-message pricing.
accessModel:
  pricing: enterprise
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Enterprise · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://www.telefon.com/logo.png
url: https://www.telefon.com
type: Index
tags:
- Call Recording
- Communications
- CPaaS
- Global Coverage
- Messaging
- Number Provisioning
- SMS
- Telephony
- Voice
- VoIP
created: '2024-01-15'
modified: '2026-05-19'
specificationVersion: '0.16'
apis:
- aid: telefon:telefon-available-numbers-api
  name: Telefon Available Numbers API
  description: Search for available numbers to purchase
  humanURL: https://developers.telefon.com/voice
  baseURL: https://api.telefon.com/v1/voice
  tags:
  - Available Numbers
  properties:
  - type: OpenAPI
    url: openapi/telefon-available-numbers-api-openapi.yml
  - type: Documentation
    url: https://developers.telefon.com/voice
  - type: Authentication
    url: https://developers.telefon.com/authentication
  - type: GettingStarted
    url: https://developers.telefon.com/getting-started
  - type: Pricing
    url: https://www.telefon.com/pricing/voice
  - type: RateLimits
    url: https://developers.telefon.com/rate-limits
  - type: Documentation
    url: https://developers.telefon.com/sms
  - type: Pricing
    url: https://www.telefon.com/pricing/sms
  - type: Documentation
    url: https://developers.telefon.com/numbers
  - type: Pricing
    url: https://www.telefon.com/pricing/numbers
  - type: Documentation
    url: https://developers.telefon.com/recording
  - type: PrivacyPolicy
    url: https://www.telefon.com/privacy
  - type: Compliance
    url: https://www.telefon.com/compliance
- aid: telefon:telefon-calls-api
  name: Telefon Calls API
  description: Make and manage phone calls
  humanURL: https://developers.telefon.com/voice
  baseURL: https://api.telefon.com/v1/voice
  tags:
  - Calls
  properties:
  - type: OpenAPI
    url: openapi/telefon-calls-api-openapi.yml
  - type: Documentation
    url: https://developers.telefon.com/voice
  - type: Authentication
    url: https://developers.telefon.com/authentication
  - type: GettingStarted
    url: https://developers.telefon.com/getting-started
  - type: Pricing
    url: https://www.telefon.com/pricing/voice
  - type: RateLimits
    url: https://developers.telefon.com/rate-limits
  - type: Documentation
    url: https://developers.telefon.com/sms
  - type: Pricing
    url: https://www.telefon.com/pricing/sms
  - type: Documentation
    url: https://developers.telefon.com/numbers
  - type: Pricing
    url: https://www.telefon.com/pricing/numbers
  - type: Documentation
    url: https://developers.telefon.com/recording
  - type: PrivacyPolicy
    url: https://www.telefon.com/privacy
  - type: Compliance
    url: https://www.telefon.com/compliance
- aid: telefon:telefon-conferences-api
  name: Telefon Conferences API
  description: Multi-party conferencing
  humanURL: https://developers.telefon.com/voice
  baseURL: https://api.telefon.com/v1/voice
  tags:
  - Conferences
  properties:
  - type: OpenAPI
    url: openapi/telefon-conferences-api-openapi.yml
  - type: Documentation
    url: https://developers.telefon.com/voice
  - type: Authentication
    url: https://developers.telefon.com/authentication
  - type: GettingStarted
    url: https://developers.telefon.com/getting-started
  - type: Pricing
    url: https://www.telefon.com/pricing/voice
  - type: RateLimits
    url: https://developers.telefon.com/rate-limits
  - type: Documentation
    url: https://developers.telefon.com/sms
  - type: Pricing
    url: https://www.telefon.com/pricing/sms
  - type: Documentation
    url: https://developers.telefon.com/numbers
  - type: Pricing
    url: https://www.telefon.com/pricing/numbers
  - type: Documentation
    url: https://developers.telefon.com/recording
  - type: PrivacyPolicy
    url: https://www.telefon.com/privacy
  - type: Compliance
    url: https://www.telefon.com/compliance
- aid: telefon:telefon-messages-api
  name: Telefon Messages API
  description: Send and receive SMS and MMS messages
  humanURL: https://developers.telefon.com/voice
  baseURL: https://api.telefon.com/v1/voice
  tags:
  - Messages
  properties:
  - type: OpenAPI
    url: openapi/telefon-messages-api-openapi.yml
  - type: Documentation
    url: https://developers.telefon.com/voice
  - type: Authentication
    url: https://developers.telefon.com/authentication
  - type: GettingStarted
    url: https://developers.telefon.com/getting-started
  - type: Pricing
    url: https://www.telefon.com/pricing/voice
  - type: RateLimits
    url: https://developers.telefon.com/rate-limits
  - type: Documentation
    url: https://developers.telefon.com/sms
  - type: Pricing
    url: https://www.telefon.com/pricing/sms
  - type: Documentation
    url: https://developers.telefon.com/numbers
  - type: Pricing
    url: https://www.telefon.com/pricing/numbers
  - type: Documentation
    url: https://developers.telefon.com/recording
  - type: PrivacyPolicy
    url: https://www.telefon.com/privacy
  - type: Compliance
    url: https://www.telefon.com/compliance
- aid: telefon:telefon-owned-numbers-api
  name: Telefon Owned Numbers API
  description: Manage numbers in your account
  humanURL: https://developers.telefon.com/voice
  baseURL: https://api.telefon.com/v1/voice
  tags:
  - Owned Numbers
  properties:
  - type: OpenAPI
    url: openapi/telefon-owned-numbers-api-openapi.yml
  - type: Documentation
    url: https://developers.telefon.com/voice
  - type: Authentication
    url: https://developers.telefon.com/authentication
  - type: GettingStarted
    url: https://developers.telefon.com/getting-started
  - type: Pricing
    url: https://www.telefon.com/pricing/voice
  - type: RateLimits
    url: https://developers.telefon.com/rate-limits
  - type: Documentation
    url: https://developers.telefon.com/sms
  - type: Pricing
    url: https://www.telefon.com/pricing/sms
  - type: Documentation
    url: https://developers.telefon.com/numbers
  - type: Pricing
    url: https://www.telefon.com/pricing/numbers
  - type: Documentation
    url: https://developers.telefon.com/recording
  - type: PrivacyPolicy
    url: https://www.telefon.com/privacy
  - type: Compliance
    url: https://www.telefon.com/compliance
- aid: telefon:telefon-recordings-api
  name: Telefon Recordings API
  description: Call recording management
  humanURL: https://developers.telefon.com/voice
  baseURL: https://api.telefon.com/v1/voice
  tags:
  - Recordings
  properties:
  - type: OpenAPI
    url: openapi/telefon-recordings-api-openapi.yml
  - type: Documentation
    url: https://developers.telefon.com/voice
  - type: Authentication
    url: https://developers.telefon.com/authentication
  - type: GettingStarted
    url: https://developers.telefon.com/getting-started
  - type: Pricing
    url: https://www.telefon.com/pricing/voice
  - type: RateLimits
    url: https://developers.telefon.com/rate-limits
  - type: Documentation
    url: https://developers.telefon.com/sms
  - type: Pricing
    url: https://www.telefon.com/pricing/sms
  - type: Documentation
    url: https://developers.telefon.com/numbers
  - type: Pricing
    url: https://www.telefon.com/pricing/numbers
  - type: Documentation
    url: https://developers.telefon.com/recording
  - type: PrivacyPolicy
    url: https://www.telefon.com/privacy
  - type: Compliance
    url: https://www.telefon.com/compliance
- aid: telefon:telefon-transcriptions-api
  name: Telefon Transcriptions API
  description: Recording transcription management
  humanURL: https://developers.telefon.com/voice
  baseURL: https://api.telefon.com/v1/voice
  tags:
  - Transcriptions
  properties:
  - type: OpenAPI
    url: openapi/telefon-transcriptions-api-openapi.yml
  - type: Documentation
    url: https://developers.telefon.com/voice
  - type: Authentication
    url: https://developers.telefon.com/authentication
  - type: GettingStarted
    url: https://developers.telefon.com/getting-started
  - type: Pricing
    url: https://www.telefon.com/pricing/voice
  - type: RateLimits
    url: https://developers.telefon.com/rate-limits
  - type: Documentation
    url: https://developers.telefon.com/sms
  - type: Pricing
    url: https://www.telefon.com/pricing/sms
  - type: Documentation
    url: https://developers.telefon.com/numbers
  - type: Pricing
    url: https://www.telefon.com/pricing/numbers
  - type: Documentation
    url: https://developers.telefon.com/recording
  - type: PrivacyPolicy
    url: https://www.telefon.com/privacy
  - type: Compliance
    url: https://www.telefon.com/compliance
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/telefon/overview
- type: AgenticAccess
  url: agentic-access/telefon-agentic-access.yml
- type: DomainSecurity
  url: security/telefon-domain-security.yml
- type: Authentication
  url: authentication/telefon-authentication.yml
- type: GettingStarted
  url: https://developers.telefon.com/getting-started
- type: Authentication
  url: https://developers.telefon.com/authentication
- type: SDKs
  url: https://www.telefon.com/sdks
- type: StatusPage
  url: https://status.telefon.com
- type: TermsOfService
  url: https://www.telefon.com/terms
- type: PrivacyPolicy
  url: https://www.telefon.com/privacy
- type: Support
  url: https://www.telefon.com/support
- type: Blog
  url: https://blog.telefon.com
- type: ChangeLog
  url: https://developers.telefon.com/changelog
- type: Pricing
  url: https://www.telefon.com/pricing
- type: GitHub
  url: https://github.com/telefon-api
- type: LlmsText
  url: https://telefon.com/llms.txt
maintainers:
- name: Telefon API Team
  email: api@telefon.com