Whisperr, Inc.

Whisperr, Inc. builds an autonomous customer-retention platform that detects churn risk and acts on it automatically, without a lifecycle marketing team operating campaigns. Whisperr combines behavioral intelligence, autonomous decisioning, and AI-generated content to spot at-risk customers and deliver interventions in under ten seconds. It serves SaaS, DTC and subscription-commerce, and mobile-game businesses, and publishes churn calculators plus a voice retention agent (Whisperr Recall). Whisperr is a 500 Global portfolio company. It publishes a real developer surface: an OpenAPI 3.0.3 document served at https://api.whisperr.net/openapi.json, a documented three-endpoint ingestion API (track, batch, identify) authenticated with a publishable wrk_ key, ten first-party SDKs spanning JavaScript, Python, PHP, .NET, Dart and Swift, an agentic integration CLI (npx @whisperr/wizard), and a public wire-contract repository whose executable conformance fixtures every SDK runs in CI.

Whisperr, Inc. publishes 7 APIs on the APIs.io network, including Dashboard API, Decisioning API, Delivery API, and 4 more. Tagged areas include Company, Customer Retention, Churn, Marketing Automation, and Artificial Intelligence.

Whisperr, Inc.’s developer surface includes documentation, API reference, getting-started guide, authentication, CLI, engineering blog, signup flow, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

44.7/100 developing ▬ flat Agent 28/100 agent aware Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

2 APIs

Company Customer Retention Churn Marketing Automation Artificial Intelligence Software-as-a-Service Subscription Customer Engagement Event Ingestion Analytics Customer Data Email Delivery Agents

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 44.7/100 · developing

Contract Quality 13.1 / 23

Developer Ergonomics 12.3 / 18

Access Clarity 0.0 / 18

Operational Transparency 0.3 / 12

Contract Governance 2.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 7.8 / 10

Agent readiness — 28/100 · 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 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

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 github.com/api-evangelist/whisperr-inc: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 7

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

Whisperr, Inc. Dashboard API

The Dashboard API from Whisperr, Inc. — 23 operation(s) for dashboard.

Whisperr, Inc. Decisioning API

The Decisioning API from Whisperr, Inc. — 1 operation(s) for decisioning.

Whisperr, Inc. Delivery API

The Delivery API from Whisperr, Inc. — 14 operation(s) for delivery.

Whisperr, Inc. Ingestion API

The Ingestion API from Whisperr, Inc. — 2 operation(s) for ingestion.

Whisperr, Inc. Internal API

The Internal API from Whisperr, Inc. — 1 operation(s) for internal.

Whisperr, Inc. System API

The System API from Whisperr, Inc. — 2 operation(s) for system.

Whisperr, Inc. Users API

The Users API from Whisperr, Inc. — 3 operation(s) for users.

Scroll for all 7

Pricing Plans 1

Published pricing tiers and plan structures.

Whisperr Inc Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Whisperr Inc Rate Limits

0 limits

RATE LIMITS

JSON Schema 3

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

Whisperr behavior conformance cases

4 properties

JSON SCHEMA

Whisperr push-token conformance cases

4 properties

JSON SCHEMA

Whisperr wire conformance cases

4 properties

JSON SCHEMA

Security Posture 2

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

Whisperr Inc Authentication

apiKey/http · 3 schemes

SECURITY

Whisperr Inc Domain Security

TLSv1.3

SECURITY

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 3

Reference material describing how the API behaves

OpenAPI

OpenAPI

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

DataModel

Conformance

Lifecycle

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

CLI

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

License

License

Plans

Plans

TermsOfService

TermsOfService

Company 4

The organization behind the API

Website

Website

Blog

Blog

Twitter

Twitter

LinkedIn

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: whisperr-inc
name: Whisperr, Inc.
description: 'Whisperr, Inc. builds an autonomous customer-retention platform that detects churn risk and acts on it automatically,
  without a lifecycle marketing team operating campaigns. Whisperr combines behavioral intelligence, autonomous decisioning,
  and AI-generated content to spot at-risk customers and deliver interventions in under ten seconds. It serves SaaS, DTC and
  subscription-commerce, and mobile-game businesses, and publishes churn calculators plus a voice retention agent (Whisperr
  Recall). Whisperr is a 500 Global portfolio company. It publishes a real developer surface: an OpenAPI 3.0.3 document served
  at https://api.whisperr.net/openapi.json, a documented three-endpoint ingestion API (track, batch, identify) authenticated
  with a publishable wrk_ key, ten first-party SDKs spanning JavaScript, Python, PHP, .NET, Dart and Swift, an agentic integration
  CLI (npx @whisperr/wizard), and a public wire-contract repository whose executable conformance fixtures every SDK runs in
  CI.'
url: https://raw.githubusercontent.com/api-evangelist/whisperr-inc/refs/heads/main/apis.yml
deliveryModel:
  model: unknown
  open_source: unknown
  commercial: true
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - pricing
  - repository-unlicensed
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unpublished
  onboarding: request-access
  trial: false
  try_now: false
  public: true
  label: Public API, unpublished pricing
  confidence: high
  source:
  - https://api.whisperr.net/openapi.json
  - https://docs.whisperr.net/api/overview/
  - https://whisperr.net/get-access
  generated: '2026-08-13'
  method: searched
image: https://whisperr.net/whisperrlogo.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: profiled
x-tier-reason: public-openapi-and-sdks
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-08-13'
tags:
- Company
- Customer Retention
- Churn
- Marketing Automation
- Artificial Intelligence
- Software-as-a-Service
- Subscription
- Customer Engagement
- Event Ingestion
- Analytics
- Customer Data
- Email Delivery
- Agents
tags_raw:
- Company
- Customer Retention
- Churn
- Marketing Automation
- Artificial Intelligence
- SaaS
- Subscription
- Customer Engagement
- Event Ingestion
- Analytics
- Customer Data
- Email Delivery
- Agents
apis:
- aid: whisperr-inc:whisperr-inc-dashboard-api
  name: Whisperr, Inc. Dashboard API
  description: The Dashboard API from Whisperr, Inc. — 23 operation(s) for dashboard.
  humanURL: https://docs.whisperr.net/api/overview/
  baseURL: https://api.whisperr.net
  tags:
  - Dashboard
  properties:
  - type: OpenAPI
    url: openapi/whisperr-inc-dashboard-api-openapi.yml
  - type: Documentation
    url: https://docs.whisperr.net/
  - type: APIReference
    url: https://docs.whisperr.net/api/overview/
  - type: Authentication
    url: authentication/whisperr-inc-authentication.yml
  - type: Conventions
    url: conventions/whisperr-inc-conventions.yml
  - type: Idempotency
    url: conventions/whisperr-inc-conventions.yml
  - type: ErrorCatalog
    url: errors/whisperr-inc-problem-types.yml
  - type: RateLimits
    url: rate-limits/whisperr-inc-rate-limits.yml
  - type: DataModel
    url: data-model/whisperr-inc-data-model.yml
  - type: Conformance
    url: conformance/whisperr-inc-conformance.yml
  - type: Lifecycle
    url: lifecycle/whisperr-inc-lifecycle.yml
  - type: JSONSchema
    url: json-schema/whisperr-inc-wire.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-behavior.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-push.schema.json
  - type: SDKs
    url: packages/whisperr-inc-packages.yml
  - type: CLI
    url: cli/whisperr-inc-cli.yml
  - type: SourceCode
    url: https://github.com/WhisperrAI/whisperr-spec
- aid: whisperr-inc:whisperr-inc-decisioning-api
  name: Whisperr, Inc. Decisioning API
  description: The Decisioning API from Whisperr, Inc. — 1 operation(s) for decisioning.
  humanURL: https://docs.whisperr.net/api/overview/
  baseURL: https://api.whisperr.net
  tags:
  - Decisioning
  properties:
  - type: OpenAPI
    url: openapi/whisperr-inc-decisioning-api-openapi.yml
  - type: Documentation
    url: https://docs.whisperr.net/
  - type: APIReference
    url: https://docs.whisperr.net/api/overview/
  - type: Authentication
    url: authentication/whisperr-inc-authentication.yml
  - type: Conventions
    url: conventions/whisperr-inc-conventions.yml
  - type: Idempotency
    url: conventions/whisperr-inc-conventions.yml
  - type: ErrorCatalog
    url: errors/whisperr-inc-problem-types.yml
  - type: RateLimits
    url: rate-limits/whisperr-inc-rate-limits.yml
  - type: DataModel
    url: data-model/whisperr-inc-data-model.yml
  - type: Conformance
    url: conformance/whisperr-inc-conformance.yml
  - type: Lifecycle
    url: lifecycle/whisperr-inc-lifecycle.yml
  - type: JSONSchema
    url: json-schema/whisperr-inc-wire.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-behavior.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-push.schema.json
  - type: SDKs
    url: packages/whisperr-inc-packages.yml
  - type: CLI
    url: cli/whisperr-inc-cli.yml
  - type: SourceCode
    url: https://github.com/WhisperrAI/whisperr-spec
- aid: whisperr-inc:whisperr-inc-delivery-api
  name: Whisperr, Inc. Delivery API
  description: The Delivery API from Whisperr, Inc. — 14 operation(s) for delivery.
  humanURL: https://docs.whisperr.net/api/overview/
  baseURL: https://api.whisperr.net
  tags:
  - Delivery
  properties:
  - type: OpenAPI
    url: openapi/whisperr-inc-delivery-api-openapi.yml
  - type: Documentation
    url: https://docs.whisperr.net/
  - type: APIReference
    url: https://docs.whisperr.net/api/overview/
  - type: Authentication
    url: authentication/whisperr-inc-authentication.yml
  - type: Conventions
    url: conventions/whisperr-inc-conventions.yml
  - type: Idempotency
    url: conventions/whisperr-inc-conventions.yml
  - type: ErrorCatalog
    url: errors/whisperr-inc-problem-types.yml
  - type: RateLimits
    url: rate-limits/whisperr-inc-rate-limits.yml
  - type: DataModel
    url: data-model/whisperr-inc-data-model.yml
  - type: Conformance
    url: conformance/whisperr-inc-conformance.yml
  - type: Lifecycle
    url: lifecycle/whisperr-inc-lifecycle.yml
  - type: JSONSchema
    url: json-schema/whisperr-inc-wire.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-behavior.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-push.schema.json
  - type: SDKs
    url: packages/whisperr-inc-packages.yml
  - type: CLI
    url: cli/whisperr-inc-cli.yml
  - type: SourceCode
    url: https://github.com/WhisperrAI/whisperr-spec
- aid: whisperr-inc:whisperr-inc-ingestion-api
  name: Whisperr, Inc. Ingestion API
  description: The Ingestion API from Whisperr, Inc. — 2 operation(s) for ingestion.
  humanURL: https://docs.whisperr.net/api/overview/
  baseURL: https://api.whisperr.net
  tags:
  - Ingestion
  properties:
  - type: OpenAPI
    url: openapi/whisperr-inc-ingestion-api-openapi.yml
  - type: Documentation
    url: https://docs.whisperr.net/
  - type: APIReference
    url: https://docs.whisperr.net/api/overview/
  - type: Authentication
    url: authentication/whisperr-inc-authentication.yml
  - type: Conventions
    url: conventions/whisperr-inc-conventions.yml
  - type: Idempotency
    url: conventions/whisperr-inc-conventions.yml
  - type: ErrorCatalog
    url: errors/whisperr-inc-problem-types.yml
  - type: RateLimits
    url: rate-limits/whisperr-inc-rate-limits.yml
  - type: DataModel
    url: data-model/whisperr-inc-data-model.yml
  - type: Conformance
    url: conformance/whisperr-inc-conformance.yml
  - type: Lifecycle
    url: lifecycle/whisperr-inc-lifecycle.yml
  - type: JSONSchema
    url: json-schema/whisperr-inc-wire.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-behavior.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-push.schema.json
  - type: SDKs
    url: packages/whisperr-inc-packages.yml
  - type: CLI
    url: cli/whisperr-inc-cli.yml
  - type: SourceCode
    url: https://github.com/WhisperrAI/whisperr-spec
- aid: whisperr-inc:whisperr-inc-internal-api
  name: Whisperr, Inc. Internal API
  description: The Internal API from Whisperr, Inc. — 1 operation(s) for internal.
  humanURL: https://docs.whisperr.net/api/overview/
  baseURL: https://api.whisperr.net
  tags:
  - Internal
  properties:
  - type: OpenAPI
    url: openapi/whisperr-inc-internal-api-openapi.yml
  - type: Documentation
    url: https://docs.whisperr.net/
  - type: APIReference
    url: https://docs.whisperr.net/api/overview/
  - type: Authentication
    url: authentication/whisperr-inc-authentication.yml
  - type: Conventions
    url: conventions/whisperr-inc-conventions.yml
  - type: Idempotency
    url: conventions/whisperr-inc-conventions.yml
  - type: ErrorCatalog
    url: errors/whisperr-inc-problem-types.yml
  - type: RateLimits
    url: rate-limits/whisperr-inc-rate-limits.yml
  - type: DataModel
    url: data-model/whisperr-inc-data-model.yml
  - type: Conformance
    url: conformance/whisperr-inc-conformance.yml
  - type: Lifecycle
    url: lifecycle/whisperr-inc-lifecycle.yml
  - type: JSONSchema
    url: json-schema/whisperr-inc-wire.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-behavior.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-push.schema.json
  - type: SDKs
    url: packages/whisperr-inc-packages.yml
  - type: CLI
    url: cli/whisperr-inc-cli.yml
  - type: SourceCode
    url: https://github.com/WhisperrAI/whisperr-spec
- aid: whisperr-inc:whisperr-inc-system-api
  name: Whisperr, Inc. System API
  description: The System API from Whisperr, Inc. — 2 operation(s) for system.
  humanURL: https://docs.whisperr.net/api/overview/
  baseURL: https://api.whisperr.net
  tags:
  - System
  properties:
  - type: OpenAPI
    url: openapi/whisperr-inc-system-api-openapi.yml
  - type: Documentation
    url: https://docs.whisperr.net/
  - type: APIReference
    url: https://docs.whisperr.net/api/overview/
  - type: Authentication
    url: authentication/whisperr-inc-authentication.yml
  - type: Conventions
    url: conventions/whisperr-inc-conventions.yml
  - type: Idempotency
    url: conventions/whisperr-inc-conventions.yml
  - type: ErrorCatalog
    url: errors/whisperr-inc-problem-types.yml
  - type: RateLimits
    url: rate-limits/whisperr-inc-rate-limits.yml
  - type: DataModel
    url: data-model/whisperr-inc-data-model.yml
  - type: Conformance
    url: conformance/whisperr-inc-conformance.yml
  - type: Lifecycle
    url: lifecycle/whisperr-inc-lifecycle.yml
  - type: JSONSchema
    url: json-schema/whisperr-inc-wire.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-behavior.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-push.schema.json
  - type: SDKs
    url: packages/whisperr-inc-packages.yml
  - type: CLI
    url: cli/whisperr-inc-cli.yml
  - type: SourceCode
    url: https://github.com/WhisperrAI/whisperr-spec
- aid: whisperr-inc:whisperr-inc-users-api
  name: Whisperr, Inc. Users API
  description: The Users API from Whisperr, Inc. — 3 operation(s) for users.
  humanURL: https://docs.whisperr.net/api/overview/
  baseURL: https://api.whisperr.net
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/whisperr-inc-users-api-openapi.yml
  - type: Documentation
    url: https://docs.whisperr.net/
  - type: APIReference
    url: https://docs.whisperr.net/api/overview/
  - type: Authentication
    url: authentication/whisperr-inc-authentication.yml
  - type: Conventions
    url: conventions/whisperr-inc-conventions.yml
  - type: Idempotency
    url: conventions/whisperr-inc-conventions.yml
  - type: ErrorCatalog
    url: errors/whisperr-inc-problem-types.yml
  - type: RateLimits
    url: rate-limits/whisperr-inc-rate-limits.yml
  - type: DataModel
    url: data-model/whisperr-inc-data-model.yml
  - type: Conformance
    url: conformance/whisperr-inc-conformance.yml
  - type: Lifecycle
    url: lifecycle/whisperr-inc-lifecycle.yml
  - type: JSONSchema
    url: json-schema/whisperr-inc-wire.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-behavior.schema.json
  - type: JSONSchema
    url: json-schema/whisperr-inc-push.schema.json
  - type: SDKs
    url: packages/whisperr-inc-packages.yml
  - type: CLI
    url: cli/whisperr-inc-cli.yml
  - type: SourceCode
    url: https://github.com/WhisperrAI/whisperr-spec
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 23
  pass: local-v1
common:
- type: License
  name: MIT
  url: https://github.com/WhisperrAI/whisperr-spec/blob/main/LICENSE
- type: OpenAPI
  url: openapi/whisperr-inc-runtime-openapi.json
- type: DeveloperPortal
  url: https://docs.whisperr.net/
- type: Documentation
  url: https://docs.whisperr.net/
- type: APIReference
  url: https://docs.whisperr.net/api/overview/
- type: GettingStarted
  url: https://docs.whisperr.net/
- type: GitHubOrganization
  url: https://github.com/WhisperrAI
- type: Authentication
  url: authentication/whisperr-inc-authentication.yml
- type: Conventions
  url: conventions/whisperr-inc-conventions.yml
- type: Idempotency
  url: conventions/whisperr-inc-conventions.yml
- type: ErrorCatalog
  url: errors/whisperr-inc-problem-types.yml
- type: RateLimits
  url: rate-limits/whisperr-inc-rate-limits.yml
- type: DataModel
  url: data-model/whisperr-inc-data-model.yml
- type: Overlay
  url: overlays/whisperr-inc-runtime-overlay.yaml
- type: Conformance
  url: conformance/whisperr-inc-conformance.yml
- type: Lifecycle
  url: lifecycle/whisperr-inc-lifecycle.yml
- type: Packages
  url: packages/whisperr-inc-packages.yml
- type: SDKs
  url: packages/whisperr-inc-packages.yml
- type: CLI
  url: cli/whisperr-inc-cli.yml
- type: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/whisperr-inc-llms.txt
- type: Plans
  url: plans/whisperr-inc-plans-pricing.yml
- type: DomainSecurity
  url: security/whisperr-inc-domain-security.yml
- type: Website
  url: https://whisperr.net
- type: Blog
  url: https://whisperr.net/blog
- type: TermsOfService
  url: https://whisperr.net/terms
- type: SignUp
  url: https://whisperr.net/get-access
- type: Twitter
  url: https://twitter.com/whisperrai
- type: LinkedIn
  url: https://www.linkedin.com/company/whisperrai

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