Cardstream

Cardstream Gateway - Direct Integration

Server-to-server integration. The merchant collects payment details on its own secure server and sends a URL-encoded HTTP POST directly to the Gateway for processing, supporting sales, refunds, cancellations, 3-D Secure 2, tokenisation and management requests. Optionally used with Hosted Payment Fields so sensitive card data is tokenised by the Gateway before the Direct request.

GitHub

Documentation

📖
Documentation
https://guides.gitbook.io/integrationguide/
📖
APIReference
https://guides.gitbook.io/integrationguide/gateway-functionality/features/new-transactions/request-fields
📖
Authentication
https://guides.gitbook.io/integrationguide/getting-started/setting-up-your-integration/authentication

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API 
curl "https://apis.io/api/v1/apis/cardstream-gateway-direct"
All apis 
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑ 
aid: cardstream:cardstream-gateway-direct
name: Cardstream Gateway - Direct Integration
description: Server-to-server integration. The merchant collects payment details on its own secure server
  and sends a URL-encoded HTTP POST directly to the Gateway for processing, supporting sales, refunds,
  cancellations, 3-D Secure 2, tokenisation and management requests. Optionally used with Hosted Payment
  Fields so sensitive card data is tokenised by the Gateway before the Direct request.
humanURL: https://guides.gitbook.io/integrationguide/getting-started/introduction-to-our-gateway/integration-methods
baseURL: https://gateway.cardstream.com/direct/
tags:
- Card Payments
- Refunds
- 3D Secure
- Tokenization
tags_raw:
- Card Payments
- Refunds
- 3-D Secure
- Tokenization
properties:
- type: Documentation
  url: https://guides.gitbook.io/integrationguide/
- type: APIReference
  url: https://guides.gitbook.io/integrationguide/gateway-functionality/features/new-transactions/request-fields
- type: Authentication
  url: https://guides.gitbook.io/integrationguide/getting-started/setting-up-your-integration/authentication