Burner

Burner is the original second-phone-number app from Ad Hoc Labs (founded 2012, Los Angeles), letting people create multiple temporary or permanent phone numbers on a single iOS or Android device for privacy, communication management, and boundary-setting. Burner supports voice calls, SMS and MMS over VoIP/PSTN, with spam blocking, voicemail transcription, auto-reply and multi-line management. For developers, Burner exposes an OAuth 2.0 REST API (api.burnerapp.com) for programmatic line management and messaging, a webhook system for real-time event notifications, and the open-source Burner App Starter Kit (BASK) for building Burner-integrated apps and bots such as Hostbot and Ghostbot.

Burner is listed with 1 API on the APIs.io network. Tagged areas include Company, Phone Numbers, SMS, MMS, and Voice.

The Burner catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Burner’s developer surface includes documentation, engineering blog, pricing, support, authentication, and 15 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

37.5/100 thin ▬ flat Agent 20/100 agent aware Front door AI 1/6 silent Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessSelf serve

1 API

Company Phone Numbers SMS MMS Voice Messaging Telephony Privacy CommunicationsSecond Phone NumberOAuth Webhook Authentication

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 37.5/100 · thin

Contract Quality 8.3 / 21

Developer Ergonomics 6.1 / 17

Access Clarity 6.5 / 17

Operational Transparency 2.9 / 11

Contract Governance 1.9 / 10

Discoverability 6.2 / 9

Regulatory Posture 3.1 / 15

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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 0 / 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

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Telecommunications regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/burner/"><img src="https://apis.io/badge/burner/card.svg" alt="Burner on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)

10 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 39.0 — up to +15.3 composite points
Developer Ergonomics scores 35.7 — up to +12.9 composite points
Access Clarity scores 38.2 — up to +12.4 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/burner/apis.yml: open an issue on github.com/api-evangelist/burner to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OAuth

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

APIs 1

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

Burner API

OAuth 2.0 REST API for programmatic access to Burner line management, messaging (SMS/MMS) and configuration, plus a webhook system for real-time event notifications. Requests us...

Event Specifications 1

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

Burner Webhooks

ASYNCAPI

Security Posture 2

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

Burner Authentication

oauth2 · 1 scheme

SECURITY

Burner Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

X-MCPServerCandidate

X-MCPServerCandidate

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conventions

Conformance

Lifecycle

Webhooks

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: burner
name: Burner
description: Burner is the original second-phone-number app from Ad Hoc Labs (founded 2012, Los Angeles), letting people create
  multiple temporary or permanent phone numbers on a single iOS or Android device for privacy, communication management, and
  boundary-setting. Burner supports voice calls, SMS and MMS over VoIP/PSTN, with spam blocking, voicemail transcription,
  auto-reply and multi-line management. For developers, Burner exposes an OAuth 2.0 REST API (api.burnerapp.com) for programmatic
  line management and messaging, a webhook system for real-time event notifications, and the open-source Burner App Starter
  Kit (BASK) for building Burner-integrated apps and bots such as Hostbot and Ghostbot.
url: https://raw.githubusercontent.com/api-evangelist/burner/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Self-serve signup
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
image: https://cdn.prod.website-files.com/61a66db931b63404b86e2ae5/61c08c40a49820520cc24482_OpenGraph.jpg
tags:
- Company
- Phone Numbers
- SMS
- MMS
- Voice
- Messaging
- Telephony
- Privacy
- Communications
- Second Phone Number
- OAuth
- Webhook
- Authentication
tags_raw:
- Company
- Phone Numbers
- SMS
- MMS
- Voice
- Messaging
- Telephony
- Privacy
- Communications
- Second Phone Number
- OAuth
- Webhooks
- Authentication
apis:
- name: Burner API
  description: 'OAuth 2.0 REST API for programmatic access to Burner line management, messaging (SMS/MMS) and configuration,
    plus a webhook system for real-time event notifications. Requests use `Authorization: Bearer <token>` and an `X-Application-Version`
    header against /v1 resource paths. The Burner App Starter Kit (BASK) is the first-party client reference.'
  humanURL: https://github.com/adhoclabs/burner-app-starter-kit
  baseURL: https://api.burnerapp.com
  tags:
  - Phone Numbers
  - SMS
  - Messaging
  - Voice
  - Telephony
  properties:
  - type: Authentication
    url: authentication/burner-authentication.yml
  - type: Conventions
    url: conventions/burner-conventions.yml
  - type: Webhooks
    url: asyncapi/burner-webhooks.yml
  - type: X-MCPServerCandidate
    url: mcp/burner-mcp.yml
    note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list
      derived from the published API contracts, not an existing server. The scorer already read the manifest and reported
      mcp_server correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://www.burnerapp.com
- type: Documentation
  url: https://github.com/adhoclabs/burner-app-starter-kit
- type: GitHubOrganization
  url: https://github.com/adhoclabs
- type: Blog
  url: https://www.burnerapp.com/blog
- type: Pricing
  url: https://www.burnerapp.com/pricing
- type: Login
  url: https://app.burnerapp.com/login
- type: Support
  url: https://support.burnerapp.com/
- type: TermsOfService
  url: https://www.burnerapp.com/terms-of-service
- type: PrivacyPolicy
  url: https://www.adhoclabs.co/privacy-policy
- type: StatusPage
  url: https://status.burnerapp.com/
- type: LLMsTxt
  url: llms/burner-llms.txt
- type: Packages
  url: packages/burner-packages.yml
- type: SDKs
  url: packages/burner-packages.yml
- type: Authentication
  url: authentication/burner-authentication.yml
- type: Conventions
  url: conventions/burner-conventions.yml
- type: Conformance
  url: conformance/burner-conformance.yml
- type: Lifecycle
  url: lifecycle/burner-lifecycle.yml
- type: Webhooks
  url: asyncapi/burner-webhooks.yml
- type: X-MCPServerCandidate
  url: mcp/burner-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: DomainSecurity
  url: security/burner-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

Burner API — frequently asked questions

Does Burner have an API?

Yes. APIs.io lists 1 API from Burner, including Burner API.

How do I authenticate with the Burner API?

Burner uses bearer-token authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Burner Authentication.

Is the Burner API ready for AI agents?

Burner has a Kin Score of 37.5 out of 100 (thin) and an Agent Readiness score of 19.8 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/burner"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/burner/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/burner/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.