# Bandwidth

**Canonical:** https://apis.io/providers/bandwidth/  
**Website:** https://www.bandwidth.com/  
**APIs profiled:** 18

Bandwidth is a leading cloud-based communications platform providing voice, messaging, emergency calling, phone number management, multi-factor authentication, and toll-free verification APIs. Built on Bandwidth's own Tier 1 network, the platform delivers enterprise-grade reliability for CPaaS applications.

## Kin Score — 55.8 / 100 (strong)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 55.8).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 78.0 |
| Governance | 28.8 |
| Contract Governance | 28.8 |
| Operational Transparency | 26.3 |
| Developer Ergonomics | 35.7 |
| Commercial Clarity | 55.3 |
| Access Clarity | 55.3 |

Regulatory layer — **Telecommunications**: 50.0 (matched via tags).

## Agent readiness — 37.2 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | derived |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Paid · Self-serve signup — onboarding: self-serve, pricing: paid, trial: no (confidence: high).

## APIs (18)

- **Bandwidth Phone Numbers API** — The Bandwidth Phone Numbers API provides programmatic access to search, order, and manage phone numbers across the United States and Canada. Developers can search for available ...
- **Bandwidth Multi-Factor Authentication API** — The Bandwidth Multi-Factor Authentication API allows developers to generate and verify secure MFA codes delivered via voice calls or SMS messages. It leverages Bandwidth's Voice...
- **Bandwidth Toll-Free Verification API** — The Bandwidth Toll-Free Verification API enables developers to programmatically submit and manage toll-free number verification requests for A2P messaging compliance. It automat...
- **Bandwidth Available Numbers API** — Search for available phone numbers by area code, NPA-NXX, rate center, city, state, or ZIP code. Returns numbers available for ordering.
- **Bandwidth Calls API** — Create, retrieve, and manage phone calls. Supports outbound call creation, call state queries, and in-progress call modifications using BXML or redirect URLs.
- **Bandwidth Conferences API** — Create and manage multi-party conference calls. Supports adding and removing members, muting, holding, and playing audio to conferences.
- **Bandwidth Disconnects API** — Disconnect and release phone numbers that are no longer needed.
- **Bandwidth Emergency Notification Recipients API** — Configure notification recipients who receive alerts when 911 calls are made from your endpoints.
- **Bandwidth Endpoints API** — Manage 911 endpoints that represent end users of your service. Endpoints are identified by Alternate End User IDs (AEUIs) and are associated with locations for emergency routing.
- **Bandwidth Locations API** — Provision and manage physical locations (addresses) for 911 emergency services routing. Locations are validated against the Master Street Address Guide (MSAG) for accuracy.
- **Bandwidth Media API** — Upload, retrieve, and manage media files for use in MMS messages. Supports files up to 3.75 MB with 48-hour retention.
- **Bandwidth Messages API** — Send and retrieve SMS and MMS messages. Supports single and group messaging, delivery receipts, and message history queries.
- **Bandwidth Number Features API** — Configure phone number features including CNAM (Caller Name), directory listings, and line features for numbers in your inventory.
- **Bandwidth Orders API** — Create and manage phone number orders. Supports ordering new numbers from available inventory and tracking order status.
- **Bandwidth Port-Ins API** — Initiate and manage phone number porting requests to bring existing numbers from other carriers to Bandwidth.
- **Bandwidth Recordings API** — Manage call recordings including retrieval of recording metadata, audio files, and transcription of recorded audio content.
- **Bandwidth SIP Peers API** — Manage SIP peers (locations) within sites. SIP peers define the network endpoints for call routing and number assignment.
- **Bandwidth Sites API** — Manage sites (sub-accounts) within a Bandwidth account. Sites represent logical groupings for organizing telephony resources.

## Agentic access (1)

- **Bandwidth Agentic Access** — 62 operations · 31 acting · 1 human-in-the-loop

## Security (4)

- **Bandwidth Authentication** — http · 1 scheme
- **Bandwidth Domain Security** — TLSv1.3 · HSTS · DMARC
- **Bandwidth Vulnerability Disclosure** — disclosure policy published
- **Bandwidth Trust Center** — SOC 2, ISO 27001, HIPAA, GDPR

## Plans (1)

- **Bandwidth Plans Pricing**

## Use cases (8)

- **Click-to-Call** — Embed outbound calling in web and mobile applications.
- **IVR Systems** — Build interactive voice response menus with DTMF input and TTS.
- **A2P Messaging** — Send application-to-person SMS campaigns at scale.
- **2FA / OTP** — Add SMS or voice-based multi-factor authentication to applications.
- **Number Provisioning** — Automate phone number procurement and assignment for customers.
- **E911 Compliance** — Meet Kari's Law and RAY BAUM's Act requirements for enterprise voice.
- **Call Center** — Build inbound/outbound contact center applications with recording.
- **Number Porting** — Migrate existing phone numbers to Bandwidth programmatically.

## Tags

Communications, CPaaS, Voice, Messaging, Telephony, SMS, MFA

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/bandwidth/). Scores are computed from the provider's own public artifacts under a published rubric.