Orb
Orb is a usage-based billing and metering platform that turns product usage events into subscriptions, prices, invoices, and credits. The Orb REST API ingests metered events, models customers, plans, prices, and items, runs subscriptions, and automates invoicing, credit ledgers, alerts, and webhooks for modern revenue teams.
Orb publishes 11 API contracts indexed on the APIs.io network, including Alerts API, Coupons API, Credits API, and 8 more. Tagged areas include Billing, Usage-Based Billing, Metering, Subscription, and Invoicing.
The Orb catalog on APIs.io includes 1 Spectral governance ruleset.
Orb’s developer surface includes engineering blog, authentication, documentation, and 11 more developer resources.
What this lets a business do 3
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 | builds-on | 22.2 | - | - |
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 11
Individual APIs this provider publishes, each with its own machine-readable definition.
Orb Alerts API
The Alerts API from Orb — 4 operation(s) for alerts.
Orb Coupons API
The Coupons API from Orb — 2 operation(s) for coupons.
Orb Credits API
The Credits API from Orb — 4 operation(s) for credits.
Orb Customers API
The Customers API from Orb — 5 operation(s) for customers.
Orb Events API
The Events API from Orb — 4 operation(s) for events.
Orb Invoices API
The Invoices API from Orb — 4 operation(s) for invoices.
Orb Items API
The Items API from Orb — 2 operation(s) for items.
Orb Metrics API
The Metrics API from Orb — 2 operation(s) for metrics.
Orb Plans API
The Plans API from Orb — 2 operation(s) for plans.
Orb Prices API
The Prices API from Orb — 3 operation(s) for prices.
Orb Subscriptions API
The Subscriptions API from Orb — 5 operation(s) for subscriptions.
Scroll for all 11
Open Collections 12
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Orb Alerts API
OPEN COLLECTIONOrb Alerts Coupons API
OPEN COLLECTIONOrb Alerts Credits API
OPEN COLLECTIONOrb Alerts Customers API
OPEN COLLECTIONOrb Alerts Events API
OPEN COLLECTIONOrb Alerts Invoices API
OPEN COLLECTIONOrb Alerts Items API
OPEN COLLECTIONOrb Alerts Metrics API
OPEN COLLECTIONOrb Alerts Plans API
OPEN COLLECTIONOrb Alerts Prices API
OPEN COLLECTIONOrb Alerts Subscriptions API
OPEN COLLECTIONOrb API
OPEN COLLECTIONScroll for all 12
Pricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Orb Billing Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Orb Billing Finops
FINOPSSpectral Rules 1
Spectral governance rulesets for linting and validating these APIs.
Orb API Rules
SPECTRALSecurity Posture 4
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Documentation 1
Reference material describing how the API behaves
Agent Surfaces 1
MCP servers, agent skills, and machine-readable catalogs
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 3
The organization behind the API
Other 1
Properties that don't map to a standard resource type
Source (apis.yml)
Orb API — frequently asked questions
Does Orb have an API?
Yes. APIs.io lists 11 APIs from Orb, including Orb Alerts API, Orb Coupons API and Orb Credits API, and 8 more.
Is there an OpenAPI specification for the Orb API?
Yes. APIs.io indexes 11 OpenAPI specifications for Orb, each linked for download from this page.
How do I authenticate with the Orb API?
Orb uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Orb Billing Authentication.
How much does the Orb API cost?
APIs.io lists 2 pricing plans for Orb, with each plan's price, limits and inclusions under Pricing Plans on this page.
Is the Orb API ready for AI agents?
Orb has a Kin Score of 35.3 out of 100 (thin) and an Agent Readiness score of 22.3 (agent-aware), scored by API Evangelist on 2026-11-02.
Work with this as data
Every provider here is available over the APIs.io API and to AI agents over MCP.