# Valyx API

## Docs

- [Filter Billing Reports](https://docs.valyx.com/api-reference/endpoint/billing-report-filter.md)
- [Add Fee component to a Contract](https://docs.valyx.com/api-reference/endpoint/contract-fee-comp.md)
- [Create Contracts](https://docs.valyx.com/api-reference/endpoint/create-contract.md)
- [Create Fee Component](https://docs.valyx.com/api-reference/endpoint/fee-comp.md)
- [Create Fee Component Tags](https://docs.valyx.com/api-reference/endpoint/fee-component-tags.md)
- [Fetch fee components of a contract](https://docs.valyx.com/api-reference/endpoint/fetch-fee-components-of-contract.md)
- [Fetch rate cards of a fee component](https://docs.valyx.com/api-reference/endpoint/fetch-rate-cards-of-fee-component.md)
- [Fetch rate cards associated to a fee component](https://docs.valyx.com/api-reference/endpoint/fetch-ratecard-feecomponent-relation.md)
- [Fetch tags of a fee components](https://docs.valyx.com/api-reference/endpoint/fetch-tags-of-fee-component.md)
- [Filter Contracts](https://docs.valyx.com/api-reference/endpoint/filter-contracts.md)
- [Filter Fee Components](https://docs.valyx.com/api-reference/endpoint/filter-fee-components.md)
- [Get Fee Component](https://docs.valyx.com/api-reference/endpoint/get-fee-component.md)
- [Create Ratecard](https://docs.valyx.com/api-reference/endpoint/ratecard.md)
- [Select RateCard for a fee component in a contract](https://docs.valyx.com/api-reference/endpoint/select-ratecard-fee-component-contract.md)
- [Create Usage Driver](https://docs.valyx.com/api-reference/endpoint/usage-driver.md)
- [Filter Usage Drivers](https://docs.valyx.com/api-reference/endpoint/usage-driver-filter.md)
- [Create a Credit Note](https://docs.valyx.com/api-reference/external/create-credit-notes.md)
- [Create attachment for Credit Note](https://docs.valyx.com/api-reference/external/create-credit-notes-attachment.md)
- [Create a new customer](https://docs.valyx.com/api-reference/external/create-customer.md)
- [Add an attachment to an Invoice](https://docs.valyx.com/api-reference/external/create-invoice-attachment.md)
- [Create / Update an Invoice](https://docs.valyx.com/api-reference/external/create-update-invoices.md)
- [Filter Credit Notes](https://docs.valyx.com/api-reference/external/filter-credit-notes.md): Retrieves credit note data based on filters.
- [Fetch customer details](https://docs.valyx.com/api-reference/external/filter-customer.md)
- [Fetch Invoice attachments](https://docs.valyx.com/api-reference/external/filter-invoice-attachments.md)
- [Filter Invoices](https://docs.valyx.com/api-reference/external/filter-invoices.md): Authenticates the request and retrieves invoice data for the company associated with the signature, applying filters and pagination from the query string.
- [Update an existing customer](https://docs.valyx.com/api-reference/external/update-customer.md)
- [API Authentication](https://docs.valyx.com/documentation/authentication.md): How to authenticate yourself to use the Valyx API.
- [Add Usage](https://docs.valyx.com/documentation/billing/apis/usage.md)
- [How to use APIs to create contracts](https://docs.valyx.com/documentation/billing/components/billing-flow.md)
- [Billing Report](https://docs.valyx.com/documentation/billing/components/billing-report.md): Description of your new file.
- [Contract](https://docs.valyx.com/documentation/billing/components/contract.md)
- [Fee Component](https://docs.valyx.com/documentation/billing/components/fee-component.md)
- [Rate Card](https://docs.valyx.com/documentation/billing/components/rate-card.md)
- [Usage Driver](https://docs.valyx.com/documentation/billing/components/usage-driver.md)

## OpenAPI Specs

- [openapi](https://docs.valyx.com/api-reference/openapi.yaml)