ZeroSettle
ZeroSettle is a Y Combinator-backed subscription revenue platform that lets iOS, Android, Flutter, and React Native app developers offer direct web billing as an alternative to App Store and Google Play in-app purchase — the pitch is "keep 85% of your revenue, not 70%." As Merchant of Record (on Stripe Connect, or BYOS), it handles web checkout, entitlements, subscription lifecycle, StoreKit transaction syncing, retention cancel flows, upgrade/migration offers, and compliance external-purchase reporting. The ZeroSettle IAP API (REST/JSON, X-ZeroSettle-Key auth) powers all of its client SDKs, with a free tier plus a $29/month Pro plan.
ZeroSettle publishes 12 API contracts indexed on the APIs.io network, including Cancel Flow API, Checkout API, Entitlements API, and 9 more. Tagged areas include Company, Payments, In-App Purchase, Subscription, and Merchant of Record.
The ZeroSettle catalog on APIs.io includes 1 Spectral governance ruleset.
ZeroSettle’s developer surface includes authentication, changelog, sandbox, documentation, API reference, quickstart, signup flow, and 23 more developer resources.
What this lets a business do 2
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
Markets this provider is in provisional
The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.
| Market | Position | Depth | Registered MCP server | Declares compatibility |
|---|---|---|---|---|
| Billing, Subscriptions and Monetization | distribution | 9.6 (thin) | 1 | 1 |
| Mobile SDK Publishers (Play SDK Index, CocoaPods, ADA certification) | distribution | 9.6 (thin) | 1 | 1 |
| Official SDKs on Packagist, pub.dev and Hex | distribution | 9.6 (thin) | 1 | 1 |
Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.
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.
APIs 12
Individual APIs this provider publishes, each with its own machine-readable definition.
ZeroSettle Cancel Flow API
Configurable cancel flow with retention offers
ZeroSettle Checkout API
Create checkout sessions and payment intents for web purchases
ZeroSettle Entitlements API
Query user entitlements (active purchases and subscriptions)
ZeroSettle Events API
Track SDK analytics events
ZeroSettle Migration API
Switch & Save migration tracking
ZeroSettle Products API
Fetch the product catalog for your app
ZeroSettle Restore API
Restore purchases for a user
ZeroSettle StoreKit API
Sync and query StoreKit transactions
ZeroSettle Subscriptions API
Manage subscription lifecycle (cancel, pause, resume)
ZeroSettle Transactions API
Query transaction status and history
ZeroSettle Upgrade Offers API
Subscription upgrade/downgrade offers
ZeroSettle User Offer API
Unified offer + subscription-state resolver (SDK 1.2+)
Scroll for all 12
Open Collections 12
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
ZeroSettle IAP Cancel Flow API
OPEN COLLECTIONZeroSettle IAP Cancel Flow Checkout API
OPEN COLLECTIONZeroSettle IAP Cancel Flow Entitlements API
OPEN COLLECTIONZeroSettle IAP Cancel Flow Events API
OPEN COLLECTIONZeroSettle IAP Cancel Flow Migration API
OPEN COLLECTIONZeroSettle IAP Cancel Flow Products API
OPEN COLLECTIONZeroSettle IAP Cancel Flow Restore API
OPEN COLLECTIONZeroSettle IAP Cancel Flow StoreKit API
OPEN COLLECTIONZeroSettle IAP Cancel Flow Subscriptions API
OPEN COLLECTIONZeroSettle IAP Cancel Flow Transactions API
OPEN COLLECTIONZeroSettle IAP Cancel Flow Upgrade Offers API
OPEN COLLECTIONZeroSettle IAP Cancel Flow User Offer API
OPEN COLLECTIONScroll for all 12
Agent Skills 3
Packaged agent skills for driving this provider's APIs from an AI assistant.
create-web-checkout
AGENT SKILLmanage-subscription-retention
AGENT SKILLverify-entitlement
AGENT SKILLZeroSettle API pricing
Prices published by ZeroSettle, read 2026-10-28 from zerosettle.io/pricing/.
| Plan | Price |
|---|---|
| Free | $0 Includes: Free forever · 1 app; full analytics & entitlements; A/B experiments & campaigns; 3 Designer proposa |
| Growth | $29/mo · $290/yr Includes: Regional Pricing (175 markets), 25 Designer proposals/mo, 3 live experiments/mo, 2 concurrent campai |
| Pro | $99/mo · $990/yr Includes: Everything in Growth unlimited, plus Autopilot, unlimited apps |
| Web checkout · Managed (Merchant of Record) | 5% + 50¢ per web-checkout transaction Includes: MoR, global tax remittance, chargebacks & fraud, billing support, payouts via Stripe Connect Express |
| Web checkout · BYOS (Bring your own Stripe) | 0.5% platform fee per web-checkout transaction Includes: 0.5% + your Stripe fees; you are Merchant of Record |
| iMessage API Pro | $49/month Includes: dedicated number |
Plan details, limits and sources →
Billed by: account · FinOps profile →
Pricing Plans 2
Published pricing tiers and plan structures.
Service Levels 1
Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.
ZeroSettle
SLAFinOps 1
Cost, billing, and metering signals for API financial operations.
Zerosettle Finops
FINOPSSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
ZeroSettle API Rules
SPECTRALOpenAPI 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.
Zerosettle Openapi Overlay
GENERATEDSecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Get Started 5
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 4
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 3
Pagination, idempotency, versioning, errors, and events
Build 3
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 4
Pricing, plans, and the legal terms of use
Company 1
The organization behind the API
Other 2
Properties that don't map to a standard resource type
Source (apis.yml)
ZeroSettle API — frequently asked questions
Does ZeroSettle have an API?
Yes. APIs.io lists 12 APIs from ZeroSettle, including ZeroSettle Cancel Flow API, ZeroSettle Checkout API and ZeroSettle Entitlements API, and 9 more.
Is there an OpenAPI specification for the ZeroSettle API?
Yes. APIs.io indexes 12 OpenAPI specifications for ZeroSettle, each linked for download from this page.
How do I authenticate with the ZeroSettle API?
ZeroSettle uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Zerosettle Authentication.
How much does the ZeroSettle API cost?
ZeroSettle publishes its prices; its Free plan is $0 as of 2026-10-28. APIs.io lists 6 pricing plans for ZeroSettle, with each plan's price, limits and inclusions under Pricing on this page.
Is the ZeroSettle API ready for AI agents?
ZeroSettle has a Kin Score of 55.3 out of 100 (strong) and an Agent Readiness score of 30.5 (agent-ready), 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.