# Pay Theory Documentation

For human-readable documentation visit: https://docs.paytheory.com

> Use Live docs by default. Use Lab docs only when the user explicitly requests preview or beta behavior.

## Machine-Readable Resources

- [Markdown Route Manifest](https://docs.paytheory.com/llm-docs/markdown-routes-manifest.json): JSON map of every docs route to its Markdown URL
- [Agent Index](https://docs.paytheory.com/llm-docs/agent-index.json): Enriched catalog with title, version, section, and source metadata
- [Full Markdown Index](https://docs.paytheory.com/llms-full.txt): All Markdown-accessible routes

## Markdown Negotiation

Any `/docs/**` URL returns Markdown instead of HTML when the request includes:
- `Accept: text/markdown`
- `x-format: md` (or `x-accept-markdown: true`, `x-doc-format: markdown`, etc.)

## API Skills

- [Pay Theory API Skill (Live)](https://docs.paytheory.com/docs/api/agent-skills/pay-theory-api-skill/SKILL): Downloadable agent skill package
  - ZIP: https://docs.paytheory.com/llm-docs/agent-skills/pay-theory-api-skill.zip
- [Pay Theory API Skill (Lab)](https://docs.paytheory.com/docs/lab/api/agent-skills/pay-theory-api-skill-lab/SKILL): Downloadable agent skill package
  - ZIP: https://docs.paytheory.com/llm-docs/agent-skills/pay-theory-api-skill-lab.zip

## Documentation Sections

### Getting Started

Quickstart guide, API key setup, error handling, and initial integration steps.

- [Getting Started](https://docs.paytheory.com/docs/main/getting_started/quickstart)

### Online Payments

Payment links, tokenizing payment methods, ACH, cash payments, wallet transactions, and processing transactions.

- [Online Payments](https://docs.paytheory.com/docs/main/online_payments/payment_links)

### Recurring Payments

Subscriptions, payment plans, and managing recurring billing.

- [Recurring Payments](https://docs.paytheory.com/docs/main/recurring_payments/create_a_subscription)

### Invoicing & Billing

Invoice creation, management, and delivery.

- [Invoicing & Billing](https://docs.paytheory.com/docs/main/invoicing_and_billing/create_an_invoice)

### After Payments

Settlements, disputes, failed transactions, receipts, and post-transaction management.

- [After Payments](https://docs.paytheory.com/docs/main/after_payments/overview)

### Testing & Sandbox

Sandbox environment and testing utilities.

- [Testing & Sandbox](https://docs.paytheory.com/docs/main/testing)

### JavaScript SDK

Pay Theory JavaScript SDK reference and integration guides.

- [JavaScript SDK](https://docs.paytheory.com/docs/sdk/javascript/main)

### Apple SDK

Pay Theory Apple iOS SDK reference and integration guides.

- [Apple SDK](https://docs.paytheory.com/docs/sdk/apple/app_registration)

### Android SDK

Pay Theory Android SDK reference and integration guides.

- [Android SDK](https://docs.paytheory.com/docs/sdk/android/main)

### GraphQL API

Complete Pay Theory GraphQL API reference with all operations, types, and examples.

- [GraphQL API](https://docs.paytheory.com/llm-docs/index.md)
- [authorization](https://docs.paytheory.com/llm-docs/authorization.md)
- [authorization › authorizations](https://docs.paytheory.com/llm-docs/authorization/authorizations.md)
- [authorization › create-authorization](https://docs.paytheory.com/llm-docs/authorization/create-authorization.md)
- [authorization › create-capture](https://docs.paytheory.com/llm-docs/authorization/create-capture.md)
- [authorization › create-void-for-authorization](https://docs.paytheory.com/llm-docs/authorization/create-void-for-authorization.md)
- [authorization › create-wallet-authorization](https://docs.paytheory.com/llm-docs/authorization/create-wallet-authorization.md)
- [barcode](https://docs.paytheory.com/llm-docs/barcode.md)
- [barcode › barcode](https://docs.paytheory.com/llm-docs/barcode/barcode.md)
- [barcode › create-barcode](https://docs.paytheory.com/llm-docs/barcode/create-barcode.md)
- [deprecated](https://docs.paytheory.com/llm-docs/deprecated.md)
- [deprecated › create-one-time-payment](https://docs.paytheory.com/llm-docs/deprecated/create-one-time-payment.md)
- [deprecated › create-refund](https://docs.paytheory.com/llm-docs/deprecated/create-refund.md)
- [deprecated › service-fee-amount](https://docs.paytheory.com/llm-docs/deprecated/service-fee-amount.md)
- [disputes](https://docs.paytheory.com/llm-docs/disputes.md)
- [disputes › disputes](https://docs.paytheory.com/llm-docs/disputes/disputes.md)
- [invoice](https://docs.paytheory.com/llm-docs/invoice.md)
- [invoice › create-invoice](https://docs.paytheory.com/llm-docs/invoice/create-invoice.md)
- [invoice › create-invoice-email](https://docs.paytheory.com/llm-docs/invoice/create-invoice-email.md)
- [invoice › create-offline-transaction](https://docs.paytheory.com/llm-docs/invoice/create-offline-transaction.md)
- [invoice › delete-invoice](https://docs.paytheory.com/llm-docs/invoice/delete-invoice.md)

### Changelog

API and SDK release notes and version history.

- [Changelog](https://docs.paytheory.com/docs/main/changelog)

## Topic Indexes

- [Guides](https://docs.paytheory.com/llm-docs/indexes/guides.md)
- [SDK Reference](https://docs.paytheory.com/llm-docs/indexes/sdk.md)
- [GraphQL API Reference](https://docs.paytheory.com/llm-docs/indexes/api.md)
- [Lab (Preview)](https://docs.paytheory.com/llm-docs/indexes/lab.md)