Documenting API
integrations

Continuous, automated documentation: capture how integrations actually behave, reducing manual work and making every integration easier to maintain.
Background

“Before Multiplayer, integration logic lived in six places. Now it’s all in one Notebook—code, API calls, decisions, and edge cases—shared across teams.”

Priya R. avatar
Priya R.Director of Engineering, Logistics Tech

API integration documentation that writes itself.

Problem icon

Problem

  • Slow, painful integrations due to outdated, or incomplete documentation
  • Fragmented context across tools and teams leads to time-consuming context switching
  • Confusion and misalignment caused by static docs that don’t reflect actual system behavior
  • Accumulated technical debt due to lack of system architecture insights and API design rationale
  • Breaking changes due to poor versioning and compatibility tracking

Solution

  • Live, executable API documentation that includes real-time details on endpoints, parameters, responses, errors, versioning, system architecture, and design decisions
  • A unified workspace to effectively design, understand, test, document, and debug API integrations without jumping between tools
  • APIs are automatically discovered and documented, with visibility into changes across environments, versions, endpoints, and dependencies
  • Bugs are caught early through collaborative design and resolved quickly with full-stack session recordings and AI-assisted debugging

Write executable documentation for real-world integrations

Try it now1 month free · no credit card required
Click through the steps to see how it works:
Live documentation with real API calls, code, and visualizations

Use API blocks, code blocks, sequences and visualization blocks to build always-accurate, interactive documentation based on real system behavior. Your docs run live requests, return real responses, and show exactly how the integration works.

Auto-detect and document APIs across environments
Document full integration flows, not just endpoints
Embed system architecture and design rationale
Turn bugs into structured, reusable documentation
Integrate with development and debugging workflows
Live documentation with real API calls, code, and visualizations

Why choose Multiplayer Notebooks to document your API integrations?

Always-up-to-date documentation

Always-up-to-date documentation

Docs that are accurate and reliable from the start and throughout all your system evolutions. 
Built from real API calls, code, and runtime behavior.
One shared workspace

One shared workspace

Design, test, document, and debug integrations in one place. No more syncing across wikis, Postman collections, and Slack threads.
Full visibility into real system behavior

Full visibility into real system behavior

Documentation that automatically reflects how integrations actually behave across environments, including request flows, edge cases, and service dependencies.
Faster, smoother integrations

Faster, smoother integrations

Clear, executable documentation reduces onboarding time, eliminates guesswork, and helps teams build and ship integrations faster.
More maintainable over time

More maintainable over time

Live docs ensure less manual overhead and accumulated technical debt, limiting outdated references, duplicative artifacts, or context gaps.
Fewer bugs and regressions

Fewer bugs and regressions

With auto-generated test scripts and full-stack session replays embedded in your workspace, teams catch issues early and prevent past bugs from coming back.

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End-to-end debugging

Capture everything you need to resolve a bug—from frontend screens, backend traces, metrics, logs and full request/response content and headers—without having to dig through APM data.

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AI-powered debugging

With MCP support, stream real-time, full-stack session recordings directly into your favorite AI tool / IDE. You can fix complex bugs faster without ever leaving your workflow.

The easier it is for developers to integrate with your API, the more widely it will be adopted

Modern documentation for fast-moving teams building and maintaining complex API integrations.
Feature
Test API calls
Collaborate with external teams (Devs, Partners, QA, CS, etc.)
Write and run inline code within API workflows
Chain API and code blocks together
Test multi-step integrations
Debug with full session capture
Auto-generate test scripts
Embed explanations, ADRs, design notes
Embed graphs and tables
API Tools
Multiplayer
Executable API documentation
Built-in change tracking for every API
Docs built from real system behavior
End-to-end API flows
High discoverability and better usability
Standardized place to document full workflows

Docs you can run, not just read

Use Multiplayer, build better API integrationsTry it now
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