Not a logo wall. This is the integration surface behind shipped products — payment processors, analytics APIs, repositories, ad networks, accounting systems, app stores — with the auth model, rate limits, and failure modes each one actually brings.
605
provider integrations
50
categories
118
OAuth flows
461
key-based connectors
Connecting to one API is an afternoon. Running hundreds of connections against other people's systems, for other people's data, without waking up to silent failures — that's the work. Six things account for most of it.
Of the 605 providers, 118 use OAuth, 461 use API keys, and 26 need no credential at all. That split decides everything downstream. An API key is a text field and a secret store. OAuth is a redirect, a state parameter, a token exchange, refresh handling, revocation, and a re-consent path when a provider changes scopes — per provider, each with its own dialect.
Refresh tokens rotate, get revoked when someone leaves the customer's org, and silently expire after inactivity windows that differ by vendor. A connector that only handles the happy path works for a month and then stops, quietly, and the first person to notice is the customer looking at stale numbers. Detecting a dead connection and asking for reconnection is not an edge case — it's a feature.
Limits vary by three orders of magnitude across providers, and several bill per call. Pulling a year of daily metrics from a provider that allows sixty requests a minute is a scheduling problem, not a loop. Backoff, windowing, partial-result persistence, and resumability have to be built in from the start, because retrofitting them means rewriting the collector.
Every serious provider delivers at-least-once. Handlers have to be idempotent on a provider event ID, tolerate arriving before the record they reference exists, and verify signatures against a rotating secret. The alternative is duplicate charges and phantom records, discovered during reconciliation.
Fields get deprecated, enums gain values, and pagination styles change between API versions. Normalising every provider into one internal shape — rather than passing raw payloads around — means a vendor change touches one adapter instead of every consumer of that data.
Paid APIs need per-call cost attribution, quota headroom checks before a large backfill, and a way to answer "what did this feature cost last month" without guessing. Without it, spend is invisible until an invoice arrives.
Every count below is read from the live integration catalog rather than estimated. The auth mix per category is the useful signal — a category that's mostly OAuth is a category where the hard part is consent and token lifecycle, not parsing.
OpenRouter · OpenAI · Anthropic · Google Gemini · Moonshot · Groq · ElevenLabs · +1 more
Stripe · PayPal · Square · Authorize.net · Shopify Partner (app earnings) · Polar · Freemius · +37 more
Longer notes on specific integrations — the gotchas, the auth quirks, and the patterns worth reusing.
Most of these were added because a project needed them. If you have a system that has to talk to something specific — or a connector that keeps breaking — that's a solvable problem.
Firebase · Google AdMob · RevenueCat · App Store (iOS public) · Google Play (public) · App Store Connect (iOS private) · Google Play Console (private) · +27 more
Mailchimp · Klaviyo · ConvertKit · Omnisend · Postscript · Drip · Customer.io · +25 more
Patreon · Memberful · Kajabi · Teachable · Thinkific · Podia · ClickFunnels · +21 more
Vercel · Cloudflare · AWS · Google Cloud · Supabase · Neon · cPanel · +18 more
HubSpot · Salesforce · ActiveCampaign · Zoho CRM · Pipedrive · Close · Freshsales · +16 more
Sentry · Datadog · Jira · Linear · Notion · Auth0 · BugSnag · +14 more
Bodis · ParkingCrew · Afternic / Dan (sales import) · GoDaddy · Namecheap · Dynadot · Porkbun · +14 more
YouTube · Meta (Facebook) · Instagram · WhatsApp Business · Threads · Twitch · LinkedIn · +13 more
Google Business Profile · Judge.me · Yotpo · Glassdoor · Trustpilot · G2 · Capterra · +12 more
Discord · Subreddit · Circle · Discourse · XenForo · Telegram · Whop · +11 more
Amazon Associates · Awin (incl. ShareASale) · Impact.com · CJ Affiliate · Rakuten Advertising · ClickBank · Skimlinks · +11 more
WHOIS · DNS · Lighthouse · Screenshot · Tech Detection · BuiltWith · Google Trends · +11 more
NetSuite · Sage Intacct · Dynamics 365 Business Central · Odoo · SAP Business One · Zoho Books · QuickBooks Online · +10 more
Etsy · Amazon Seller Central · eBay · Walmart Marketplace · Faire · TikTok Shop · Printful · +8 more
Google Analytics · Google Search Console · Bing Webmaster Tools · Matomo · WordPress.com / Jetpack Stats · CallRail · Plausible Analytics · +7 more
Google Ads · Meta Ads · LinkedIn Ads · TikTok Ads · Microsoft Ads · Amazon Ads · Apple Search Ads · +7 more
Google AdSense · Google Ad Manager · Mediavine · Raptive · Ezoic · Monumetric · Taboola · +7 more
OpenCorporates · UCC Lien Search · Court Records / Litigation · Stripe Identity (KYC) · ComplyAdvantage (AML/Sanctions) · Vanta (compliance ingest) · Drata (compliance ingest) · +7 more
Zendesk · Intercom · Gorgias · Help Scout · Freshdesk · Front · Zoho Desk · +6 more
Shopify · Shopify (Public) · BigCommerce · WooCommerce · Ecwid · Magento / Adobe Commerce · PrestaShop · +5 more
Asana · Monday.com · ClickUp · Trello · Basecamp · Confluence · Coda · +5 more
Gusto · Rippling · ADP · Paychex · Deel · BambooHR · HiBob · +4 more
Plaid (bank verification) · Mercury · Wise Business · TrueLayer (open banking) · Amex Business (statement import) · Bluevine (statement import) · Found (statement import) · +3 more
WordPress API · WordPress Plugin · Webflow · Squarespace · Wix · Ghost · Drupal · +2 more
Steamworks · itch.io · Roblox Creator · Unity Asset Store · CrazyGames · Epic Games Store · GOG.com · +2 more
Transistor · Buzzsprout · Podbean · Spotify for Creators · Apple Podcasts Connect · Acast · Captivate · +2 more
Brex · Ramp · Bill.com · Expensify · Anthropic API · Harvest · OpenAI Platform · +2 more
Mixpanel · PostHog · Amplitude · Hotjar · FullStory · Segment · Unbounce · +1 more
Calendly · Acuity Scheduling · Mindbody · Booksy · Cal.com · OpenTable · Vagaro
Slack · Microsoft Teams · Google Workspace Admin · Microsoft 365 Admin · Okta · 1Password Business
Pingdom · UptimeRobot · Better Uptime · PagerDuty · Statuspage · Checkly
Google Drive · Dropbox · OneDrive · SharePoint · Box
Snowflake · BigQuery · Looker · Power BI · Tableau
Airbnb (host) · Guesty · Hostaway · Vrbo (host) · Turo (host)
Delighted · AskNicely · Wootric (InMoment) · Nicereply · Survicate
GitHub · GitLab · Bitbucket · Azure DevOps
Flippa · Empire Flippers · Acquire.com · Escrow.com
GitHub Actions · CircleCI · Buildkite · Harness
ShipStation · Loop Returns · AfterShip · EasyPost
Upwork · Fiverr (seller) · HoneyBook · Dubsado
Avalara AvaTax · TaxJar · Anrok · Quaderno
Clover · Lightspeed Retail · Loyverse · SumUp
DoorDash (merchant) · Toast POS · Uber Eats (merchant) · Grubhub (merchant)
Baremetrics · ChartMogul · ProfitWell (Paddle)
SEMrush · Ahrefs · Moz
Zapier · Make (Integromat) · Airtable
Apollo · Salesloft · Outreach
Jobber · Housecall Pro · ServiceTitan
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