If you've ever spent a Friday afternoon buried in API documentation, trying to figure out why your Shopify webhook won't talk to Stripe, or why your HubSpot leads aren't appearing in Salesforce — you're not alone. Enterprise software integration has always been one of the messiest, most time-consuming parts of running a modern tech stack.
ArcIntegrate was built specifically to solve this problem. Described as "The 2026 Interoperability Engine," it's a free, engineering-first technical directory that gives developers, RevOps teams, and systems architects exact, step-by-step implementation guides for connecting the SaaS and AI platforms they use every day.
ArcIntegrate is not a no-code tool that builds integrations for you. It's something arguably more valuable: a deeply technical reference library that tells you exactly how to build a reliable integration yourself — or how to configure one correctly inside an iPaaS platform like Zapier or Make.
The platform maps the technical complexity of B2B software, providing developers and ops teams with exact trigger-action blueprints. Where most integration tutorials stop at "get your API key and connect the apps," ArcIntegrate goes several layers deeper.
While iPaaS solutions like Zapier or Make provide the transport layer, the actual architectural blueprints — knowing which webhooks to listen to, which API scopes to request, and how to format the JSON payloads — remain fragmented across dozens of different developer portals. ArcIntegrate consolidates all of that into one place.
ArcIntegrate is a specialised technical directory engineered to eliminate the friction of B2B SaaS interoperability. As revenue operations and data architectures become increasingly complex, relying on superficial integration summaries is no longer sufficient.
The site is managed by RDC IT Solutions Ltd, based in Milton Keynes, UK — a corporate IT consultancy with deep experience in systems engineering and data security.
The honest answer is: a lot. Here's what sets ArcIntegrate apart.
1. It covers the edge cases that bite you in production.
Each integration guide in the index is structured to address exact edge cases. The guides detail specific HTTP error codes (such as 429 Too Many Requests or 401 Unauthorized) you will encounter, and provide the programmatic logic needed to resolve them.
2. It's built around three strict engineering standards.
According to the ArcIntegrate About page, every guide covers:
3. It dramatically reduces setup time.
The 3-tier indexing matches your exact workflow intent, reducing setup time by up to 60%. For a developer who'd otherwise spend 2–3 days hunting through documentation, that's a meaningful difference.
4. It's refreshed for 2026.
Technical implementation guides [are] refreshed for 2026, which matters enormously in an industry where API versions change frequently and outdated tutorials cause silent failures.
ArcIntegrate's directory currently covers over 50 integration guides across the most common enterprise SaaS and AI platforms. Here's a breakdown by category:
| Integration | What It Solves | Link |
|---|---|---|
| Shopify → Stripe | Sync orders, create Stripe customers, handle refunds across platforms | View Guide |
| Stripe → QuickBooks | Automate financial reconciliation and accounting sync | View Guide |
| Shopify → HubSpot | Feed e-commerce customer data into marketing CRM | View Guide |
| Xero → Shopify | Keep accounting and storefront inventory in sync | View Guide |
| Klaviyo → Shopify | Sync email marketing data with your store | View Guide |
| Stripe → Salesforce | Push payment data into your CRM for revenue reporting | View Guide |
| Integration | What It Solves | Link |
|---|---|---|
| HubSpot → Salesforce | Automate the critical MQL-to-SQL handoff between marketing and sales | View Guide |
| Typeform → HubSpot | Push form submissions directly into your marketing CRM | View Guide |
| Salesforce → Slack | Get real-time CRM updates in your team's communication hub | View Guide |
| Xero → HubSpot | Sync financial data with marketing and CRM records | View Guide |
| Mailchimp → Salesforce | Sync email campaign contacts and data to your CRM | View Guide |
| Webflow → HubSpot | Route website leads directly into HubSpot | View Guide |
| Google Ads → HubSpot | Connect paid acquisition data with CRM contact records | View Guide |
| Unbounce → HubSpot | Sync landing page conversions with your marketing CRM | View Guide |
| GetResponse → Salesforce | Push email marketing data into your sales CRM | View Guide |
| Intercom → Salesforce | Sync customer support conversations with CRM records | View Guide |
| LinkedIn → Salesforce | Feed social selling activity directly into Salesforce | View Guide |
| Eventbrite → Salesforce | Sync event attendee data with your CRM | View Guide |
| Calendly → Salesforce | Push booked meeting data into Salesforce automatically | View Guide |
| Outlook → Salesforce | Sync email communications with CRM contact records | View Guide |
| Microsoft Teams → Salesforce | Bridge internal communications with your CRM | View Guide |
| HubSpot → WordPress | Publish and sync CRM-powered content to WordPress | View Guide |
| Integration | What It Solves | Link |
|---|---|---|
| OpenAI → Slack | Build AI-powered Slack bots and automated briefings | View Guide |
| Anthropic → Next.js | Integrate Claude AI into a Next.js application with streaming | View Guide |
| Supabase → Next.js | Connect your Postgres backend to a Next.js frontend | View Guide |
| Next.js → Supabase | Architect data flows from your frontend to Supabase | View Guide |
| Supabase → Slack | Send real-time database alerts to Slack channels | View Guide |
| Integration | What It Solves | Link |
|---|---|---|
| GitHub → Slack | Get real-time code and PR notifications in Slack | View Guide |
| GitHub → Jira | Sync commits and PRs with Jira issues automatically | View Guide |
| Jira → Slack | Post issue updates and status changes to Slack | View Guide |
| Asana → Jira | Sync project tasks across both platforms | View Guide |
| Asana → Slack | Notify teams of task updates in Slack | View Guide |
| Trello → Slack | Push board and card updates into Slack | View Guide |
| Slack → Trello | Create Trello cards directly from Slack | View Guide |
| Datadog → Slack | Route infrastructure and monitoring alerts into Slack | View Guide |
| Box → Jira | Link file storage with project management | View Guide |
| Box → Salesforce | Connect document storage with your CRM | View Guide |
| Microsoft 365 → Slack | Bridge the Microsoft and Slack ecosystems | View Guide |
| Integration | What It Solves | Link |
|---|---|---|
| Google Calendar → Notion | Sync calendar events into Notion databases | View Guide |
| Notion → Google Calendar | Push Notion dates back to your calendar | View Guide |
| Notion → Slack | Send Notion page and database updates to Slack | View Guide |
| Airtable → Google Sheets | Sync Airtable bases with Google Sheets | View Guide |
| Google Sheets → Airtable | Push spreadsheet data into Airtable | View Guide |
| Airtable → Slack | Get Airtable record updates delivered to Slack | View Guide |
| Zoom → Google Calendar | Sync meeting links with calendar events | View Guide |
| Zoom → Slack | Post Zoom meeting summaries and recordings to Slack | View Guide |
| Calendly → Zoom | Auto-generate Zoom links for booked meetings | View Guide |
| Eventbrite → Slack | Notify your team of new event registrations | View Guide |
| Figma → Slack | Notify designers and PMs of Figma file changes | View Guide |
| Pipedrive → Slack | Push CRM deal updates to Slack automatically | View Guide |
The OpenAI to Slack guide is one of the most practically valuable in the entire directory, covering how to build a fully interactive AI assistant inside Slack.
At its simplest, it routes AI-generated text into a Slack channel. At its most sophisticated, it creates a fully autonomous Slack-native AI assistant that can retrieve context, reason over structured data, and take actions — all within the communication layer your organisation already uses.
Three major enterprise use cases are covered in detail:
The guide walks through the full Node.js implementation using Slack's Bolt SDK, OAuth scopes, signature validation, slash commands, and critically, how to prevent the most dangerous failure mode: bot feedback loops, where a bot posts a message to a channel, the message event triggers the bot again, and so on until rate limits are hit.
For developers building AI-powered products, the Anthropic to Next.js guide is essential reading.
The central challenge when connecting Anthropic to Next.js is not simply making an API call — it is deciding where in the Next.js rendering architecture the inference call should live (Route Handler vs. Server Component vs. Edge Function), managing streaming state across the server-client boundary, handling tool use (function calling) response cycles, and ensuring that API keys are never exposed to the browser.
The guide covers three major use case patterns — streaming chat interfaces, agentic tool-use loops, and server-side document processing — with complete code examples for each. It also addresses a critical deployment gotcha that many developers hit: streaming timeouts on Vercel deployments occur because the default maximum function execution duration is 10 seconds on Hobby plans.
For B2B businesses, the HubSpot to Salesforce integration is arguably the single most important pipeline in the entire go-to-market stack.
The boundary between these two systems is the MQL-to-SQL handoff: the precise moment when marketing hands a qualified prospect to a sales representative. When this handoff is manual, it introduces latency, data loss, and attribution gaps. When it is automated and precisely configured, it creates a closed-loop revenue intelligence system where marketing can demonstrate pipeline contribution and sales can act on fully enriched leads without re-entering data.
The guide covers three integration patterns in detail — direct API with middleware, Zapier configuration, and Make scenarios — and flags a long-term risk that most integrations overlook: field mapping drift, where as your marketing team adds custom contact properties in HubSpot and your RevOps team adds custom fields in Salesforce, the mapping between the two must be actively maintained.
The Shopify to Stripe guide covers how to build a production-grade integration handling order events, customer object creation, PaymentIntent metadata, and refund propagation.
A second use case is post-purchase subscription upsell. When a Shopify order contains a specific product tagged as a subscription trigger, the integration creates a Stripe Subscription on the customer's Stripe account, attaching the payment method used in the Shopify order via Stripe's payment_method attachment flow.
One of the most valuable sections explains idempotency — a concept often skipped in tutorials but critical for reliability: Shopify webhook delivery is not guaranteed to be exactly-once. The same order event may be delivered more than once. Implement idempotency by checking your datastore for the Shopify order ID before processing.
Let's be concrete about what ArcIntegrate actually saves you.
A typical developer spending time hunting through documentation, debugging authentication errors, and dealing with rate limit issues for a moderately complex integration might spend anywhere from one to four days on the task. ArcIntegrate's guides consolidate the most critical information — prerequisites, exact API scopes, payload schemas, error handling, and pitfalls — into a single 12-minute read per integration.
The numbers add up fast. If your team handles five integrations a year and each would otherwise take two days to research properly, that's ten developer-days saved. At a typical senior developer day rate, that's tens of thousands of pounds or dollars in reclaimed engineering capacity.
Beyond raw time, the quality improvement matters even more. Integrations that are built with proper webhook validation, exponential backoff, and idempotency handling don't break silently at 2am during a flash sale or a high-volume lead generation campaign.
Developers who need to build custom integrations and want a single starting point that covers authentication, payload formats, and error handling before they dive into the official API docs.
RevOps and Sales Ops professionals who are configuring Zapier or Make workflows and need to understand which specific triggers, fields, and conditions to use — not just the surface-level no-code setup.
Solutions architects and technical consultants who are designing integration strategies for clients and need a reliable reference for implementation complexity and trade-offs.
Startup CTOs and technical founders who need to move fast and can't afford to have their team disappear into API documentation rabbit holes.
The entire directory is free to browse at arcintegrate.org.
If you don't see the integration you need, there's a Request a Guide page where you can submit your specific use case for the publishing queue. You can also sign up for the ArcIntegrate Newsletter to be notified when new guides are published.
For teams that need ongoing technical consultation beyond what the directory covers, the parent company RDC IT Solutions Ltd offers managed IT and systems engineering services out of Milton Keynes, UK.
ArcIntegrate is maintained by RDC IT Solutions Ltd. All integration guides are refreshed regularly to reflect the latest API versions and platform changes.