Libraries tagged by direkt api

RevKeen is a fintech-grade API for payments, subscriptions, invoices, and billing. The canonical production MCP server is available at `https://mcp.revkeen.com/mcp`. **API Version:** `2026-05-01` — Pin with the `RevKeen-Version` header. **Quick Links:** [Full Documentation](https://docs.revkeen.com) | [Authentication](https://docs.revkeen.com/authentication) | [OAuth](https://docs.revkeen.com/oauth) | [SDKs](https://docs.revkeen.com/sdks) | [Webhooks](#webhooks) | [MCP Guide](https://docs.revkeen.com/mcp) ## Authentication Two authentication methods are supported: ### API Keys (recommended for server-to-server REST API integrations) Send your API key in the `x-api-key` header. Get keys from the [Dashboard](https://app.revkeen.com/settings/api-keys). Use `rk_sandbox_*` for test mode and `rk_live_*` for production. ### OAuth 2.1 (recommended for MCP and third-party integrations) Use OAuth 2.1 with PKCE for authorization code flow or client credentials for server-to-server. Tokens are sent via `Authorization: Bearer rk_oauth_*`. See the [OAuth guide](https://docs.revkeen.com/oauth) for setup. - **Authorization Code + PKCE** — user-facing integrations, MCP hosts - **Client Credentials** — server-to-server, automated workflows - **Dynamic Client Registration** — MCP hosts that auto-register ## MCP Integration RevKeen's canonical production MCP server is `https://mcp.revkeen.com/mcp` using Streamable HTTP and OAuth 2.1 bearer tokens. - **Customer launch surface** — read-first customer v1 tools with least-privilege scopes - **Host setup guide** — see the [MCP guide](https://docs.revkeen.com/mcp) for ChatGPT, Claude, and compatible MCP hosts ## API Key Scopes Scopes follow `{resource}:{action}` format (e.g., `invoices:read`, `customers:*`). See [full scope reference](https://docs.revkeen.com/authentication#scopes). | Category | Scope | Description | |----------|-------|-------------| | **Payments & Checkout** | `checkout:read` | View checkout session details | | | `checkout:write` | Create and manage checkout sessions | | | `cart:read` | View cart session details (REV-3511) | | | `cart:write` | Create and mutate cart sessions, line items, add-ons (REV-3511) | | | `payment_links:read` | View payment links | | | `payment_links:write` | Create and manage payment links | | | `charges:read` | View one-time charges | | | `charges:write` | Create one-time charges for customers | | | `payments:read` | View payment details | | | `payments:write` | Capture or void payments | | | `payment_intents:read` | View payment intent details | | | `payment_intents:write` | Create, confirm, capture, and cancel payment intents | | | `setup_intents:read` | View setup intent details | | | `setup_intents:write` | Create, confirm, and cancel setup intents | | | `payment_methods:read` | View saved payment methods | | | `payment_methods:write` | Attach and detach payment methods | | **Billing** | `invoices:read` | View invoices | | | `invoices:write` | Create, update, and manage invoices | | | `subscriptions:read` | View subscriptions | | | `subscriptions:write` | Create, update, pause, and cancel subscriptions | | | `subscription_schedules:read` | View subscription schedule details | | | `subscription_schedules:write` | Create, update, cancel, and release subscription schedules | | | `orders:read` | View orders | | | `orders:write` | Create and manage orders | | | `credit_notes:read` | View credit notes | | | `credit_notes:write` | Create and void credit notes | | **Products & Pricing** | `products:read` | View product catalog | | | `products:write` | Create and update products | | | `prices:read` | View pricing information | | | `prices:write` | Create and update prices | | | `discounts:read` | View discount codes | | | `discounts:write` | Create and manage discount codes | | | `tax_rates:read` | View tax rate configurations | | | `tax_rates:write` | Configure tax rates | | **Usage & Metering** | `meters:read` | View meter configurations | | | `meters:write` | Create and update meters | | | `usage:read` | View usage events and balances | | | `usage:write` | Ingest usage events | | **Customers** | `customers:read` | View customer information | | | `customers:write` | Create and update customers | | | `entitlements:read` | View customer entitlements / feature access | | | `entitlements:write` | Grant and revoke customer entitlements | | | `businesses:read` | View business entities | | | `businesses:write` | Manage business entities | | **Money Movement** | `refunds:read` | View refund details | | | `refunds:write` | Issue refunds | | | `voids:read` | View voided transactions | | | `voids:write` | Void unsettled transactions | | | `disputes:read` | View chargebacks and disputes | | | `disputes:write` | Respond to disputes | | | `payouts:read` | View payout and settlement data | | **Direct Debit** | `mandates:read` | View Direct Debit mandates and collection status | | | `mandates:write` | Create, suspend, reinstate, and cancel Direct Debit mandates | | **Terminal** | `terminal:read` | View terminal devices and card-present payments | | | `terminal:write` | Initiate, cancel, refund, and void terminal payments | | **Data Exchange** | `exports:read` | View and download data exports | | | `exports:write` | Create data exports | | | `imports:read` | View import status and history | | | `imports:write` | Upload and run data imports | | **Analytics & Reporting** | `analytics:read` | View analytics and reports | | | `finance:read` | View financial reports | | **Communication** | `comms:read` | View SMS and email delivery logs | | | `comms:write` | Send SMS, email, and WhatsApp messages | | | `automations:read` | View automations, runs, approvals, and traces | | | `automations:write` | Create automations and trigger runs | | **Integrations** | `apps:read` | View connected applications | | | `apps:write` | Manage app connections | | | `webhooks:read` | View webhook endpoints | | | `webhooks:write` | Manage webhook endpoints | | | `integrations:read` | View integration status and sync logs | | | `integrations:write` | Activate, configure, and sync integrations | | | `events:read` | View webhook event logs | | | `events:write` | Resend and test webhook events | | | `sync:read` | View sync watermarks and state | | | `sync:write` | Update sync watermarks | ## Environments | Environment | Base URL | API Key Prefix | |-------------|----------|----------------| | **Staging** | `https://staging-api.revkeen.com/v2` | `rk_sandbox_*` | | **Production** | `https://api.revkeen.com/v2` | `rk_live_*` | ## Idempotency Include `Idempotency-Key` header (UUID) on mutation requests. Keys are valid for 24 hours. ## Rate Limits | Plan | Requests/min | Burst | |------|-------------|-------| | **Staging** | 100 | 200 | | **Production** | 1000 | 2000 | | **Enterprise** | Custom | Custom |

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## API Versioning We're constantly updating and improving the API, and while we try to ensure backwards compatibility, there's always a chance that we'll introduce a change that affects the way your app works. To get around any problems that this might cause, we recommend that you include the Accept header with every API request that you make. This header enables you to target your request to a particular version of the API. It looks like this in HTTP: ```text Accept: application/vnd.saitowag.api+json;version={version_number} ``` Normally, you set the value of the placeholder to the current version of the API. But if you're troubleshooting your app, and you know that an older version of the API works perfectly, say version 1.0, you'd substitute 1.0 for the placeholder value. The API then handles the request as if it were for version 1.0, and your app goes back to working properly. ### Example of an error with invalid `ACCEPT` header. The `HTTP status code` in case of an invalid `ACCEPT` header will be `400 Bad Request` and the following response will be returned. ```json { "data": [ { "error_code": "ERR_ACCEPT_HEADER_NOT_VALID", "error_message": "Accept header is not valid or not set." } ] } ``` ### Unexpected Error If an unexpected error occours, a so called Error General will be returned. The `HTTP status code` in case of an invalid `ACCEPT` header will be `500` and the following response will be returned. ```json { "data": [ { "error_code": "ERR_GENERAL", "error_message": "An unexpected error has occurred. If this problem persists, please contact our support." } ] } ``` ### Invalid Endpoint Error Any call to a non-existing API endpoint (i.e. wrong route) will return a response with `HTTP status code` `404` and the following response body: ```json { "data": [ { "error_code": "ERR_GENERAL_INVALID_ENDPOINT", "error_message": "The requested endpoint does not exist." } ] } ``` Please, note that this error is returned also when a request parameter, part of a valid route, is not well formed. For example, a call to a route that contains a wrong order id (i.e. it does not meet the accepted order id pattern - e.g. 123456789PAC instead of PAC123456789) will return the error just mentioned, as the route is considered as badly formed. In conclusion, please pay special attention to all those routes that have request parameters with specific pattern requirements. ### Shipping Method IDs These ids may not be available in all the countries. | ID | Name | | --- | --- | | 1 | Standard `Standard` | | 2 | Self-collection `Selbstabholung` | | 3 | Express morning (truck) `Express-Morgen (LKW)` | | 4 | Express Today (Truck) `Express-Heute (LKW)` | | 5 | Express morning (package forwarding) `Express-Morgen (Packet Spedition)` | | 7 | Express-now | ### Payment Method IDs These ids may not be available in all the countries. | ID | Name | | --- | --- | | 1 | SEPA Direct Debit `SEPA-Lastschrift` | | 2 | Prepayment `Vorkasse` | | 3 | Cash on delivery `Nachnahme` | | 4 | PayPal/Credit Card `PayPal/Kreditkarte` | | 5 | open payment method `offene Zahlungsart` | | 7 | Invoice(8 days payment term) `Rechnung(8 Tage Zahlungsziel)` | | 8 | open payment method (SEPA) `offene Zahlungsart (SEPA)` | ## Query String Filters Query String Filters | Operator | Full Name | Description | Example | | ------ | ------ | ------ | ------ | | eq | Equal | Used to narrow down the result of a query to some specific value, for specified field. It adds the "**=**" symbol to the SQL query. Eg. `{url}?filter[{alias_name}]=eq;11` will result in the following sql: `SELECT {field_name} AS {alias_name} FROM {table_name} WHERE {alias_name} = 11` | integer: `{url}?filter[id]=eq;21`float: `{url}?filter[average]=eq;3.7`string: `{url}?filter[free_text]=eq;apple`Date: `{url}?filter[birthday]=eq;2020-06-03`DateTime: `{url}?filter[created_at]=eq;2020-06-03 14:32:32`boolean: `{url}?filter[is_active]=eq;1` | | neq | Not equal | Used to exclude the value from a query result. It adds the "****" symbol to the SQL query. Eg. `{url}?filter[{alias_name}]=neq;11` will result in the following sql: `SELECT {field_name} AS {alias_name} FROM {table_name} WHERE {alias_name} 11` | integer: `{url}?filter[id]=neq;21`float: `{url}?filter[average]=neq;3.7`string: `{url}?filter[free_text]=neq;apple`Date: `{url}?filter[birthday]=neq;2020-06-03`DateTime: `{url}?filter[created_at]=neq;2020-06-03 14:32:32`boolean: `{url}?filter[is_active]=neq;1` | | gt | Greater than | Used to reduce fetched values to those greater than the one provided in a query string. It adds the "**>**" symbol to the SQL query. Eg. `{url}?filter[{alias_name}]=gt;11` will result in the following sql: `SELECT {field_name} AS {alias_name} FROM {table_name} WHERE {alias_name} > 11` | integer: `{url}?filter[id]=gt;21`float: `{url}?filter[average]=gt;3.7`Date: `{url}?filter[birthday]=gt;2020-06-03`DateTime: `{url}?filter[created_at]=gt;2020-06-03 14:32:32` | | gte | Greater than or equal | Used to reduce fetched values to those greater than or equal to the one provided in a query string. It adds the "**>=**" symbol to the SQL query. Eg. `{url}?filter[{alias_name}]=gte;11` will result in the following sql: `SELECT {field_name} AS {alias_name} FROM {table_name} WHERE {alias_name} >= 11` | integer: `{url}?filter[id]=gte;21`float: `{url}?filter[average]=gte;3.7`Date: `{url}?filter[birthday]=gte;2020-06-03`DateTime: `{url}?filter[created_at]=gte;2020-06-03 14:32:32` | | lt | Less than | Used to reduce fetched values to those less than provided in a query string. It adds the "**

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## API Versioning We're constantly updating and improving the API, and while we try to ensure backwards compatibility, there's always a chance that we'll introduce a change that affects the way your app works. To get around any problems that this might cause, we recommend that you include the Accept header with every API request that you make. This header enables you to target your request to a particular version of the API. It looks like this in HTTP: ```text Accept: application/vnd.saitowag.api+json;version={version_number} ``` Normally, you set the value of the placeholder to the current version of the API. But if you're troubleshooting your app, and you know that an older version of the API works perfectly, say version 1.0, you'd substitute 1.0 for the placeholder value. The API then handles the request as if it were for version 1.0, and your app goes back to working properly. ### Example of an error with invalid `ACCEPT` header. The `HTTP status code` in case of an invalid `ACCEPT` header will be `400 Bad Request` and the following response will be returned. ```json { "data": [ { "error_code": "ERR_ACCEPT_HEADER_NOT_VALID", "error_message": "Accept header is not valid or not set." } ] } ``` ### Unexpected Error If an unexpected error occours, a so called Error General will be returned. The `HTTP status code` in case of an invalid `ACCEPT` header will be `500` and the following response will be returned. ```json { "data": [ { "error_code": "ERR_GENERAL", "error_message": "An unexpected error has occurred. If this problem persists, please contact our support." } ] } ``` ### Invalid Endpoint Error Any call to a non-existing API endpoint (i.e. wrong route) will return a response with `HTTP status code` `404` and the following response body: ```json { "data": [ { "error_code": "ERR_GENERAL_INVALID_ENDPOINT", "error_message": "The requested endpoint does not exist." } ] } ``` Please, note that this error is returned also when a request parameter, part of a valid route, is not well formed. For example, a call to a route that contains a wrong order id (i.e. it does not meet the accepted order id pattern - e.g. 123456789PAC instead of PAC123456789) will return the error just mentioned, as the route is considered as badly formed. In conclusion, please pay special attention to all those routes that have request parameters with specific pattern requirements. ### Shipping Method IDs These ids may not be available in all the countries. | ID | Name | | --- | --- | | 1 | Standard `Standard` | | 2 | Self-collection `Selbstabholung` | | 3 | Express morning (truck) `Express-Morgen (LKW)` | | 4 | Express Today (Truck) `Express-Heute (LKW)` | | 5 | Express morning (package forwarding) `Express-Morgen (Packet Spedition)` | | 7 | Express-now | ### Payment Method IDs These ids may not be available in all the countries. | ID | Name | | --- | --- | | 1 | SEPA Direct Debit `SEPA-Lastschrift` | | 2 | Prepayment `Vorkasse` | | 3 | Cash on delivery `Nachnahme` | | 4 | PayPal/Credit Card `PayPal/Kreditkarte` | | 5 | open payment method `offene Zahlungsart` | | 7 | Invoice(8 days payment term) `Rechnung(8 Tage Zahlungsziel)` | | 8 | open payment method (SEPA) `offene Zahlungsart (SEPA)` | ## Query String Filters Query String Filters | Operator | Full Name | Description | Example | | ------ | ------ | ------ | ------ | | eq | Equal | Used to narrow down the result of a query to some specific value, for specified field. It adds the "**=**" symbol to the SQL query. Eg. `{url}?filter[{alias_name}]=eq;11` will result in the following sql: `SELECT {field_name} AS {alias_name} FROM {table_name} WHERE {alias_name} = 11` | integer: `{url}?filter[id]=eq;21`float: `{url}?filter[average]=eq;3.7`string: `{url}?filter[free_text]=eq;apple`Date: `{url}?filter[birthday]=eq;2020-06-03`DateTime: `{url}?filter[created_at]=eq;2020-06-03 14:32:32`boolean: `{url}?filter[is_active]=eq;1` | | neq | Not equal | Used to exclude the value from a query result. It adds the "****" symbol to the SQL query. Eg. `{url}?filter[{alias_name}]=neq;11` will result in the following sql: `SELECT {field_name} AS {alias_name} FROM {table_name} WHERE {alias_name} 11` | integer: `{url}?filter[id]=neq;21`float: `{url}?filter[average]=neq;3.7`string: `{url}?filter[free_text]=neq;apple`Date: `{url}?filter[birthday]=neq;2020-06-03`DateTime: `{url}?filter[created_at]=neq;2020-06-03 14:32:32`boolean: `{url}?filter[is_active]=neq;1` | | gt | Greater than | Used to reduce fetched values to those greater than the one provided in a query string. It adds the "**>**" symbol to the SQL query. Eg. `{url}?filter[{alias_name}]=gt;11` will result in the following sql: `SELECT {field_name} AS {alias_name} FROM {table_name} WHERE {alias_name} > 11` | integer: `{url}?filter[id]=gt;21`float: `{url}?filter[average]=gt;3.7`Date: `{url}?filter[birthday]=gt;2020-06-03`DateTime: `{url}?filter[created_at]=gt;2020-06-03 14:32:32` | | gte | Greater than or equal | Used to reduce fetched values to those greater than or equal to the one provided in a query string. It adds the "**>=**" symbol to the SQL query. Eg. `{url}?filter[{alias_name}]=gte;11` will result in the following sql: `SELECT {field_name} AS {alias_name} FROM {table_name} WHERE {alias_name} >= 11` | integer: `{url}?filter[id]=gte;21`float: `{url}?filter[average]=gte;3.7`Date: `{url}?filter[birthday]=gte;2020-06-03`DateTime: `{url}?filter[created_at]=gte;2020-06-03 14:32:32` | | lt | Less than | Used to reduce fetched values to those less than provided in a query string. It adds the "**

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Stripe integration with Magento 2

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The rest of the Perplexity API for Prism — embeddings, direct search, and async deep research beyond the Agent API chat surface.

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laravel-paypalpayment is simple package help you process direct credit card payments, stored credit card payments and PayPal account payments with your L4 projects using paypal REST API SDK.

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Client for Yandex.Direct API v5

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Yii2 Api Direct library

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PayBox Direct and Direct Plus API wrapper

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Full-featured Instagram Graph API SDK for any PHP framework with first-class Laravel support: OAuth & long-lived tokens, content publishing, stories, comments, direct messaging with buttons, user info and webhooks.

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Mollie API client library for PHP. Mollie is a European Payment Service provider and offers international payment methods such as Mastercard, VISA, American Express and PayPal, and local payment methods such as iDEAL, Bancontact, SOFORT Banking, SEPA direct debit, Belfius Direct Net, KBC Payment Button and various gift cards such as Podiumcadeaukaart and fashioncheque.

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A simple PHP library to integrate with Service Direct's Partners API

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PHP FFI wrapper for the JME native ephemeris library with direct jme_* API access and bundled runtime library support

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Easy access to the Twitter REST API, Direct Messages API, Account Activity API, TON (Object Nest) API and Twitter Ads API — all from one PHP library.

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A client for the GoCardless Pro API

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