Maxio
EcosystemSubscription billing and revenue management platform for B2B SaaS, formed from the merger of Chargify and SaaSOptics, supporting complex billing models including usage-based, seat-based, and hybrid pricing.
Maxio is an official UCP ecosystem participant.
Maxio is the result of a 2022 merger between Chargify, a subscription billing platform, and SaaSOptics, a SaaS financial operations tool. The combined platform handles subscription billing, revenue recognition, and financial reporting for B2B SaaS companies. Maxio is particularly strong for companies with complex pricing models: usage-based billing, multi-tiered seat pricing, and hybrid flat-plus-usage arrangements.
For UCP integration, Maxio's billing engine is the relevant layer. An AI agent purchasing a B2B SaaS subscription through a Maxio-powered vendor needs to interact with the subscription record rather than a single checkout event. Maxio exposes subscription state, pricing tiers, and amendment options that map to the UCP subscription management capability.
Maxio has not announced a UCP integration, but its REST API is well-documented and supports programmatic subscription creation, amendment, and cancellation. Developers building agent-facing commerce for B2B SaaS can use the Maxio API directly until a formal UCP layer exists. The billing complexity Maxio handles, proration, mid-cycle changes, multi-component billing, is exactly what agent-initiated B2B procurement needs to address.
Why This Matters for UCP
Maxio handles B2B SaaS subscription billing with support for usage-based and hybrid pricing models. Its API enables agent-initiated subscription creation and amendment for complex recurring commerce use cases.
UCP Capabilities
UCP Endpoint
Ecosystem — Endpoint not yet publicly available
Integration Example
// Maxio API for agent-initiated B2B SaaS subscription management.
// No UCP layer yet; use REST API directly.
import Maxio from '@maxio-com/advanced-billing-sdk';
const client = new Maxio({ basicAuthCredentials: {
username: process.env.MAXIO_API_KEY,
password: '',
}});
// Create a subscription for a B2B customer
const subscription = await client.subscriptions.createSubscription({
subscription: {
productHandle: 'pro-monthly',
customerAttributes: { email: buyerEmail, firstName, lastName },
creditCardAttributes: { paymentType: 'credit_card' },
},
});
// Upgrade to a higher tier
const amendment = await client.subscriptions.migrateSubscription(
subscription.subscription.id,
{ migration: { productHandle: 'enterprise-monthly', includeTrial: false } }
);Category
PlatformsUCP Status
EcosystemTags
Pricing
paid
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Reviews
★★★★★4.5 (4 reviews)These are illustrative examples to show what reviews will look like. Submit your own experience below.
P. Rodriguez
Commerce Engineer · Jan 22, 2026
The UCP capabilities are complete and work as advertised. Our shopping agent handles product discovery and checkout end-to-end through this platform.
L. Wang
API Developer · Feb 14, 2026
Reliable endpoint. We run automated conformance checks weekly and they pass consistently. The identity linking spec is fully implemented.
D. Müller
Solutions Architect · Feb 20, 2026
We plugged this into our agent framework and had live product discovery working within a day. The platform integration is clean.
S. Nakamura
Senior Developer · Mar 1, 2026
Good UCP support. Endpoint is stable and well-documented. The only minor friction was rate limits during initial testing — easy to request an increase.
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