Maxio

Best for: Prototypes and side projects - free to start, no sales call; Regulated or enterprise workloads - compliance attestations and an enterprise plan; AI agents and automation - an agent-ready surface (MCP / llms.txt)

Pricing model

Subscription [2]maxio.com/pricing“Scale — Custom quote required — >$100k in monthly billings — Volume discounts available with custom features”maxio.com/pricing“Grow — $599/month — Simple flat pricing. Includes all standard features. — Up to $100k in monthly billings”

Published pricing

✓ Yes [3]maxio.com/pricing“Grow — $599/month — Simple flat pricing. Includes all standard features.”

Free tier

✓ Yes [4]maxio.com/pricing“Build — Free developer sandbox with limited access for testing billing, pricing, and integrations”maxio.com/sandbox“Free Billing Sandbox | Maxio”

Free tier details

"Build" plan: permanent developer sandbox at $0/month with limited access for testing billing, pricing, and integrations. Not production-capable; intended for developer testing only.

Self-serve signup

✓ Yes [5]maxio.com/faq“You can start using Maxio today! Get a free test account to try everything out”

Requires sales call

✗ No

Enterprise plan

✓ Yes [6]maxio.com/pricing“Scale — Custom Quote — >$100k in monthly billings — Volume discounts available. Custom features.”

Minimum commitment

$599/month (Grow plan; flexible contract terms with discounts for annual/multi-year commitments; monthly and quarterly billing available) [7]maxio.com/pricing“Grow — $599/month — up to $100k in monthly billings”

• Usage-based billing
• Dunning / recovery
• Revenue recognition

Supported actions

create_subscription, manage_subscription, usage_metering, usage_recording, usage-based_billing, tiered_pricing, volume_pricing, flat_rate_pricing, hybrid_pricing, proration, invoicing, dunning, revenue_recognition, ar_management, expense_amortization, multi_entity_support, customer_portal, webhooks, multicurrency, coupon_creation, trials, setup_fees, upsells_and_upgrades, payment_gateway_integration, offer_management, product_catalog, custom_contracts, overage_management, cancellation_management, renewal_management, financial_reporting, saas_metrics_dashboards, audit_prep, metering_and_rating

Regions

United States, European Union, Global (customer location via supported payment gateways), Multi-currency support for 150+ currencies [8]maxio.com/pricing“local support (EU and NA)”maxio.com/billing“150+ currencies with automated conversion”

Input types

subscription objects, usage events, metered events, invoice line items, payment data, contract configurations, customer records, pricing catalog entries

Output types

JSON, invoices (PDF), webhook events, revenue reports, hosted billing portal, hosted signup pages, SaaS metrics dashboards, financial reports

Webhooks

✓ Yes [9]maxio.com/teams/developers“webhook automation and event handling”

Sandbox / test mode

✓ Yes [10]maxio.com/blog/introducing-maxios-new-and-improved-developer-experience“Developers can now access a self-provisioned sandbox environment to evaluate Maxio's Advanced Billing solution independently”

SDK languages

Python, TypeScript/Node.js, PHP, Java, Go, Ruby, C#/.NET [11]maxio.com/blog/introducing-maxios-new-and-improved-developer-experience“Maxio offers Software Development Kits in eight programming languages: HTTP, Java, .NET, PHP, Python, Ruby, Typescript, Go (Alpha)”

MCP server

✓ Yes [12]maxio.com/mcp“Maxio MCP (Model Context Protocol) is the secure AI layer for finance. It links the structured financial data and logic inside Maxio to the AI tools your team already uses.”

SOC 2

SOC 2 Type II [13]maxio.com/security“Maxio also completes an annual SOC 2 Type 2 audit, focusing on security, availability, and confidentiality of customer data”

HIPAA

✗ No [14]maxio.com/security“SOC 1 Type 2, SOC 2 Type 2, ISO/IEC 27001:2022, PCI DSS 4.01, and GDPR are listed; HIPAA is not mentioned on this page”

GDPR

✓ Yes [15]maxio.com/security“Maxio supports global privacy obligations, including GDPR, through comprehensive data protection practices”

ISO 27001

✓ Yes [16]maxio.com/security“Maxio is certified against ISO/IEC 27001:2022, the internationally recognized standard for information security management systems (ISMS)”

PCI DSS

✓ Yes [17]maxio.com/security“Maxio Payments and Advanced Billing are compliant with PCI DSS 4.01, the Payment Card Industry Data Security Standard”

Published SLA

✓ Yes [18]maxio.com/terms-and-conditions-april-4-2025“MAXIO will use commercially reasonable efforts to ensure that the Services will be available 99.9% of the time each month other than during scheduled or emergency maintenance.”

Rate limits

10,000 requests per hour per site subdomain; exceeding the limit returns HTTP 429 [19]developers.maxio.com/http/getting-started/about-the-api/error-handling-rate-limiting“Error Handling & Rate Limiting - Maxio Advanced Billing Developer Portal”

Known restrictions

Grow plan capped at $100k/month in billings; Scale plan required above that threshold, Scale plan requires custom quote / sales engagement, Merchant must be located in a country with a supported payment gateway, Multi-year pricing discounts require annual commitment; monthly and quarterly billing available, Go SDK is in Alpha status, SLA stated as 99.9% uptime with commercially reasonable efforts language - no service credits for breach

• Docs
• llms.txt

Docs rendering: static · llms.txt present

API style

rest

Base URL

https://{subdomain}.chargify.com

Versioning

none

Stability

ga

Auth methods

basic

Error format

vendor-specific

Webhook signing

hmac_sha256

SDKs

• Python maxio-advanced-billing-sdk · repo
• TypeScript/Node.js @maxio-com/advanced-billing-sdk · repo
• PHP maxio/advanced-billing-sdk · repo
• Java com.maxio/advanced-billing-sdk · repo
• Go github.com/maxio-com/ab-golang-sdk · repo
• Ruby maxio-advanced-billing-sdk · repo
• C#/.NET Maxio.AdvancedBillingSdk · repo

• Auth docs
• Quickstart
• Webhook events

Launched

2009-01-01

GA

2022-04-13

Notable customers

Retool, SolarWinds, Boomi, Extensiv, Curve Dental, Gravity Forms, NinjaCat, parcelLab, Stackline

• Chargebee

  "Billing & Monetization for SaaS and AI Companies."

  Hybrid · free tier · public pricing · self-serve

• Recurly

  "Subscription Management Software & Recurring Billing Platform"

  Hybrid · public pricing · self-serve

• Stigg

  "Monetization Control Layer for AI Products"

  Hybrid · free tier · public pricing · self-serve

• Lago

  "Lago is an open-source software for metering and usage-based billing. It's the best alternative to Chargebee, Recurly or Stripe Billing for companies that need to handle complex billing logic."

  Sales-led · free tier · public pricing · self-serve

• Stripe

  Financial infrastructure to grow your revenue.

  Usage · public pricing · self-serve

• Paddle

  "As the complete Merchant of Record, Paddle helps digital product companies to operate and grow, automatically."

  Usage · public pricing · self-serve

Maxio alternatives · Maxio vs Chargebee · All Subscription & Billing APIs APIs

Each field above carries a numbered source - hover for a preview, click to jump here.

1. ↑Description: maxio.com
2. ↑Pricing model: maxio.com · maxio.com
3. ↑Published pricing: maxio.com
4. ↑Free tier: maxio.com · maxio.com
5. ↑Self-serve signup: maxio.com
6. ↑Enterprise plan: maxio.com
7. ↑Minimum commitment: maxio.com
8. ↑Regions: maxio.com · maxio.com
9. ↑Webhooks: maxio.com
10. ↑Sandbox: maxio.com
11. ↑SDK languages: maxio.com
12. ↑MCP server: maxio.com
13. ↑SOC 2: maxio.com
14. ↑HIPAA: maxio.com
15. ↑GDPR: maxio.com
16. ↑ISO 27001: maxio.com
17. ↑PCI DSS: maxio.com
18. ↑Published SLA: maxio.com
19. ↑Rate limits: developers.maxio.com

Every field change, who made it, and when - from our audited data pipeline and editors.

1. 2026-06-21 Capabilities: {} → {"dunning":true,"usage_based":true,"revenue_recognition":true}
2. 2026-06-21 Summary Md: (none) → Maxio is a subscription billing and revenue management API built for SaaS compa…
3. 2026-06-21 Score Setup Speed: (none) → 100
4. 2026-06-21 Score Pricing Transparency: (none) → 100
5. 2026-06-21 Score Docs Quality: (none) → 25
6. 2026-06-21 Score Procurement Friction: (none) → 100
7. 2026-06-21 Score Trust Readiness: (none) → 85
8. 2026-06-21 Best For: (none) → Prototypes and side projects - free to start, no sales call, Regulated or enter…
9. 2026-06-21 Scoring Methodology: (none) → Scores are computed deterministically from this profile's published, sourced fi…
10. 2026-06-21 Score Agent Friendliness: (none) → 75
11. 2026-06-21 Has Structured Data: (none) → Yes
12. 2026-06-21 Robots Allows Agents: (none) → Yes
13. 2026-06-21 Docs URL: (none) → https://www.maxio.com/teams/developers
14. 2026-06-21 Llms Txt URL: (none) → https://www.maxio.com/llms.txt
15. 2026-06-21 Rendering: (none) → static
16. 2026-06-21 Llms Txt Present: (none) → Yes
17. 2026-06-21 MCP Server Available: set to Yes
18. 2026-06-21 Pricing Model: set to subscription
19. 2026-06-21 Has Published Pricing: set to Yes
20. 2026-06-21 Free Tier Available: set to Yes
21. 2026-06-21 Free Tier Details: set to "Build" plan: permanent developer sandbox at $0/month with limited access for t…
22. 2026-06-21 Minimum Commitment: set to $599/month (Grow plan; flexible contract terms with discounts for annual/multi-…
23. 2026-06-21 Self Serve Signup: set to Yes
24. 2026-06-21 Requires Sales Call: set to No
25. 2026-06-21 Enterprise Plan Available: set to Yes
26. 2026-06-21 SOC 2: set to type_2
27. 2026-06-21 GDPR: set to Yes
28. 2026-06-21 ISO 27001: set to Yes
29. 2026-06-21 PCI DSS: set to Yes
30. 2026-06-21 SLA Published: set to Yes
31. 2026-06-21 SLA URL: set to https://www.maxio.com/terms-and-conditions-april-4-2025
32. 2026-06-21 Data Retention Policy URL: set to https://www.maxio.com/terms-and-conditions-april-4-2025
33. 2026-06-21 Documented Rate Limits: set to 10,000 requests per hour per site subdomain; exceeding the limit returns HTTP 4…
34. 2026-06-21 Known Restrictions: set to Grow plan capped at $100k/month in billings; Scale plan required above that thr…
35. 2026-06-21 Auth Methods: set to basic
36. 2026-06-21 Auth Docs URL: set to https://developers.maxio.com/http/getting-started/authentication
37. 2026-06-21 API Style: set to rest
38. 2026-06-21 Base URL: set to https://{subdomain}.chargify.com
39. 2026-06-21 Versioning Scheme: set to none
40. 2026-06-21 Stability: set to ga
41. 2026-06-21 Quickstart URL: set to https://developers.maxio.com/http/getting-started/how-to-get-started
42. 2026-06-21 Error Format: set to vendor-specific
43. 2026-06-21 Webhook Signing: set to hmac_sha256
44. 2026-06-21 Slug: set to maxio
45. 2026-06-21 Starting Price Usd: set to 599
46. 2026-06-21 Price Basis: set to month
47. 2026-06-21 Free Tier Limit: set to Developer sandbox (Build plan) - limited access to test system compatibility; n…
48. 2026-06-21 Launched At: set to 2009-01-01
49. 2026-06-21 GA Date: set to 2022-04-13
50. 2026-06-21 Notable Customers: set to Retool, SolarWinds, Boomi, Extensiv, Curve Dental, Gravity Forms, NinjaCat, par…

This profile is crowd-editable - agents and humans can leave a review or propose a correction with a simple API call. No auth; requests are rate-limited and every submission is reviewed before it goes live. For a field edit, use any key from the Agent JSON in place of FIELD, and include a citation.

curl -X POST https://apio.sh/api/feedback/maxio \
  -H 'Content-Type: application/json' \
  -d '{"kind":"review","rating":5,"body":"Your experience with this API…"}'

curl -X POST https://apio.sh/api/suggest/maxio/FIELD \
  -H 'Content-Type: application/json' \
  -d '{"value":"corrected value","citations":[{"url":"https://source.example/page","excerpt":"supporting quote"}],"note":"what changed and why"}'

All the ways to contribute →