brightback

Brightback (now Chargebee Retention) is a churn-prevention and cancellation- experience platform for subscription businesses. When a customer clicks "cancel," Brightback intercepts the flow with a personalized, hosted save experience — targeted offers, surveys, and deflection paths — driven by customer and billing context passed from the merchant. Founded as a standalone SaaS backed by Point Nine and other investors, Brightback was acquired by Chargebee in 2021 and operates as Chargebee Retention. Developers integrate via the brightbackjs client library or a server-side pre-cancel API that returns a unique Cancel Session URL, with HMAC-SHA-512 signed requests for backend calls.

brightback publishes 1 API contract indexed on the APIs.io network: Retention API. Tagged areas include Company, Churn Prevention, Customer Retention, Subscription, and Cancellation.

The brightback catalog on APIs.io includes 1 Spectral governance ruleset.

brightback’s developer surface includes documentation, API reference, support, authentication, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

22.6/100 emerging ▬ flat Agent 24/100 agent aware Heartbeat 0/100 dormant Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 Agent Skills

Company Churn Prevention Customer Retention Subscription Cancellation Software-as-a-Service

Kin Score

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

Composite quality — 22.6/100 · emerging

Contract Quality 2.9 / 19

Developer Ergonomics 5.4 / 15

Access Clarity 0.0 / 15

Operational Transparency 1.8 / 10

Contract Governance 1.6 / 9

Discoverability 5.5 / 8

Regulatory Posture 2.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 24/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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 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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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

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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)
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)
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

7 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 15.5 — up to +21.1 composite points
Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 36.3 — up to +12.7 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/brightback/apis.yml: open an issue on github.com/api-evangelist/brightback 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.

OpenAPI

measured — observed by APIs.io (published)

APIs 1

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

brightback Retention API

The Retention API from brightback — 1 operation(s) for retention.

Open Collections 1

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

Brightback (Chargebee ) Pre-cancel Retention API

OPEN COLLECTION

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

Create a Brightback pre-cancel session

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

brightback API Rules

54 rules · 52 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Brightback Retention Overlay

2 actions · update · brightback-retention-openapi.yml

DERIVED

Security Posture 2

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

Brightback Authentication

apiKey · 2 schemes

SECURITY

Brightback Domain Security

TLSv1.2 · DMARC

SECURITY

Resources

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

X-MCPServerCandidate

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

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

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

ParentCompany

ParentCompany

Overlay

Overlay

Source (apis.yml)

aid: brightback
name: brightback
description: Brightback (now Chargebee Retention) is a churn-prevention and cancellation- experience platform for subscription
  businesses. When a customer clicks "cancel," Brightback intercepts the flow with a personalized, hosted save experience
  — targeted offers, surveys, and deflection paths — driven by customer and billing context passed from the merchant. Founded
  as a standalone SaaS backed by Point Nine and other investors, Brightback was acquired by Chargebee in 2021 and operates
  as Chargebee Retention. Developers integrate via the brightbackjs client library or a server-side pre-cancel API that returns
  a unique Cancel Session URL, with HMAC-SHA-512 signed requests for backend calls.
url: https://raw.githubusercontent.com/api-evangelist/brightback/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- point-nine
x-tier: stub
x-tier-reason: portfolio-lead
x-acquired-by: chargebee
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://logo.clearbit.com/brightback.com
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Churn Prevention
- Customer Retention
- Subscription
- Cancellation
- Software-as-a-Service
tags_raw:
- Company
- Churn Prevention
- Customer Retention
- Subscriptions
- Cancellation
- SaaS
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: brightback:brightback-retention-api
  name: brightback Retention API
  description: The Retention API from brightback — 1 operation(s) for retention.
  humanURL: https://help.brightback.com/article/171-precancel-api
  baseURL: https://app.brightback.com
  tags:
  - Retention
  properties:
  - type: OpenAPI
    url: openapi/brightback-retention-api-openapi.yml
common:
- type: ParentCompany
  url: https://apis.io/providers/chargebee/
  name: Chargebee
  x-relationship: acquired
  x-evidence: Founded as a standalone SaaS backed by Point Nine and other investors, Brightback was acquired by Chargebee
    in 2021 and operates as Chargebee Retention.
- type: Overlay
  url: overlays/brightback-retention-overlay.yaml
- type: Documentation
  url: https://www.chargebee.com/docs/retention/installing-chargebee-retention.html
- type: APIReference
  url: https://help.brightback.com/article/171-precancel-api
- type: Support
  url: https://help.brightback.com
- type: GitHubOrganization
  url: https://github.com/brightback
- type: StatusPage
  url: https://status.chargebee.com/
- type: Website
  url: https://brightback.com
- type: Packages
  url: packages/brightback-packages.yml
- type: SDKs
  url: packages/brightback-packages.yml
- type: Authentication
  url: authentication/brightback-authentication.yml
- type: Conventions
  url: conventions/brightback-conventions.yml
- type: ErrorCatalog
  url: errors/brightback-problem-types.yml
- type: Lifecycle
  url: lifecycle/brightback-lifecycle.yml
- type: Conformance
  url: conformance/brightback-conformance.yml
- type: DataModel
  url: data-model/brightback-data-model.yml
- type: X-MCPServerCandidate
  url: mcp/brightback-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: AgentSkill
  url: skills/_index.yml
- type: LLMsTxt
  url: llms/brightback-llms.txt
- type: DomainSecurity
  url: security/brightback-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence

brightback API — frequently asked questions

Does brightback have an API?

Yes. APIs.io lists 1 API from brightback, including brightback Retention API.

Is there an OpenAPI specification for the brightback API?

Yes. APIs.io indexes 1 OpenAPI specification for brightback, each linked for download from this page.

How do I authenticate with the brightback API?

brightback uses bearer-token authentication (apiKey · 2 schemes). The details are profiled on APIs.io as Brightback Authentication.

Is the brightback API ready for AI agents?

brightback has a Kin Score of 22.6 out of 100 (emerging) and an Agent Readiness score of 23.8 (agent-aware), scored by API Evangelist on 2026-11-06.

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