# Maxio

**Canonical:** https://apis.io/providers/maxio/  
**Website:** https://www.maxio.com  
**APIs profiled:** 1

Maxio is a SaaS billing and financial operations platform formed from the merger of Chargify and SaaSOptics, providing subscription management, recurring billing, revenue recognition, and SaaS metrics for B2B software companies. Maxio Advanced Billing (formerly Chargify) exposes a REST API for managing customers, subscriptions, products, components, invoices, and events. Authentication uses HTTP Basic auth with a per-site API key as the username.

## Kin Score — 22.7 / 100 (emerging)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 22.7).

| Facet | Score |
|---|---|
| Discoverability | 75.9 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 28.9 |
| Developer Ergonomics | 14.3 |
| Commercial Clarity | 42.1 |
| Access Clarity | 42.1 |

Regulatory layer — **Payments**: 32.8 (matched via tags).

## Agent readiness — 2.5 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | bearer |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## APIs (1)

- **Maxio Advanced Billing API** — REST API for managing the full subscription lifecycle in Maxio Advanced Billing (formerly Chargify): customers, products, components, subscriptions, invoices, transactions, coup...

## Security (2)

- **Maxio Domain Security** — TLSv1.3 · HSTS · DMARC
- **Maxio Trust Center** — SOC 2, ISO 27001, PCI DSS, GDPR

## Tags

Billing, Subscription, Recurring Billing, Revenue Recognition, SaaS Metrics, Payments

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/maxio/). Scores are computed from the provider's own public artifacts under a published rubric.