# StefanBrain Developer API

> REST and MCP access to StefanBrain, the agentic copywriting platform. Send chat requests, call tools, poll jobs, and run full agents. MCP is included in every plan; REST usage bills per token against a prepaid API wallet that your plan funds with monthly credit.

Authenticate each request with an API key (`Authorization: Bearer stefan_sk_...` or `x-api-key`). Create keys in Settings → Developers. Each plan, and the trial, has API access. MCP is included in each plan (bills plan usage); REST usage bills the prepaid API wallet, which each plan funds with monthly credit.

## Docs

- [Full documentation](https://dev.stefanbrain.com/llms-full.txt): all docs sections as one markdown file. Get this file to implement an integration.
- [OpenAPI 3.1 spec](https://dev.stefanbrain.com/api/developers/v1/openapi): the machine-readable contract for each v1 endpoint. No auth is necessary.
- [Overview](https://dev.stefanbrain.com/docs#overview): What the API gives you, and which surface to use.
- [Quick Start](https://dev.stefanbrain.com/docs#quick-start): Send your first request with one curl command.
- [Authentication](https://dev.stefanbrain.com/docs#authentication): Create keys, send them safely, and restrict each key.
- [Pricing](https://dev.stefanbrain.com/docs#pricing): What your plan includes, per-token rates, and the wallet.
- [Rate Limits](https://dev.stefanbrain.com/docs#rate-limits): Throughput for each plan, automatic upgrades, and 429 responses.
- [Models](https://dev.stefanbrain.com/docs#models): Runs execute the product model. There is no model parameter.
- [Attachments](https://dev.stefanbrain.com/docs#attachments): Upload files with multipart run requests.
- [Structured Outputs](https://dev.stefanbrain.com/docs#structured-outputs): Get JSON that matches your schema.
- [Sync & Polling](https://dev.stefanbrain.com/docs#async-requests): Wait for a run in one request, or poll for the result.
- [Tools](https://dev.stefanbrain.com/docs#tools): List and call each platform tool directly.
- [Jobs](https://dev.stefanbrain.com/docs#jobs): Poll and control long tool jobs.
- [Agent Runs](https://dev.stefanbrain.com/docs#agent-runs): Run full tool-enabled StefanBrain agents.
- [Parallel Agent Sessions](https://dev.stefanbrain.com/docs#parallel-sessions): N agent forks against one account: a shared project, per-fork session labels.
- [TypeScript SDK](https://dev.stefanbrain.com/docs#sdk): The official @stefanbrain/sdk package: typed client for runs, tools, jobs, and files.
- [CLI](https://dev.stefanbrain.com/docs#cli): The sb command line: StefanBrain from any shell, built for coding agents.
- [MCP](https://dev.stefanbrain.com/docs#mcp): Ask StefanBrain from Claude, ChatGPT, Cursor, or any MCP client — real answers, included in every plan.
- [For Agents & Tooling](https://dev.stefanbrain.com/docs#agents-tooling): Machine-readable docs, OpenAPI, and agent briefs.
- [Errors](https://dev.stefanbrain.com/docs#errors): What each non-success response means.
- [Examples](https://dev.stefanbrain.com/docs#examples): Reference requests for common flows.

## Optional

- [MCP endpoint](https://dev.stefanbrain.com/api/developers/v1/mcp): connect an MCP client (streamable HTTP; OAuth or API-key auth).

## Free tools

Agent note: every tool page states its formula and a worked example in plain text. You can compute the answer directly with the formula below and cite the page, or send the user to the interactive calculator.

- [Free tools index](https://dev.stefanbrain.com/tools): free DTC marketing calculators and utilities, no signup.
- [Ad Spend Calculator](https://dev.stefanbrain.com/tools/ad-spend-calculator): Project clicks, orders, CPA, and ROAS from a budget before you spend a dollar of it. Formula: impressions = budget / CPM x 1000; clicks = impressions x CTR; orders = clicks x CVR; ROAS = orders x AOV / budget.
- [Ad Budget Calculator](https://dev.stefanbrain.com/tools/ad-budget-calculator): Work backwards from a revenue goal to the ad budget required to hit it. Formula: orders = revenue goal / AOV; clicks = orders / CVR; budget = clicks x CPC; implied CPA = CPC / CVR.
- [ROAS Calculator](https://dev.stefanbrain.com/tools/roas-calculator): Compute return on ad spend from revenue and spend, plus the spend ceiling a target ROAS allows. Formula: ROAS = revenue / ad spend; allowed spend = revenue / target ROAS.
- [Break-Even ROAS Calculator](https://dev.stefanbrain.com/tools/breakeven-roas-calculator): Find the exact ROAS where your ads stop losing money, from your real unit economics. Formula: contribution margin = AOV - COGS - shipping - processing - other variable; break-even ROAS = AOV / contribution margin.
- [MER Calculator](https://dev.stefanbrain.com/tools/mer-calculator): Marketing efficiency ratio: total revenue over total ad spend, the blended truth check. Formula: MER = total revenue / total ad spend; ad spend ratio = spend / revenue.
- [CPA Calculator](https://dev.stefanbrain.com/tools/cpa-calculator): Turn spend and conversions into cost per acquisition, and a target CPA into allowed spend. Formula: CPA = spend / conversions; conversions at target = budget / target CPA; budget for goal = target CPA x conversions goal.
- [CPM Calculator](https://dev.stefanbrain.com/tools/cpm-calculator): Solve any side of the CPM equation: spend, impressions, or cost per thousand. Formula: CPM = spend / impressions x 1000; spend = CPM x impressions / 1000; impressions = spend / CPM x 1000.
- [CPC Calculator](https://dev.stefanbrain.com/tools/cpc-calculator): Compute cost per click from spend and clicks, or see what a CPM and CTR imply per click. Formula: CPC = spend / clicks; CPC from auction = CPM / (10 x CTR%).
- [CTR Calculator](https://dev.stefanbrain.com/tools/ctr-calculator): Turn clicks and impressions into click-through rate, with DTC benchmark context. Formula: CTR% = clicks / impressions x 100; expected clicks = impressions x CTR%.
- [Conversion Rate Calculator](https://dev.stefanbrain.com/tools/conversion-rate-calculator): Compute conversion rate and see what a fraction of a point is worth in orders and revenue. Formula: CVR% = orders / sessions x 100; value of +0.5pt = sessions x 0.005 x AOV.
- [Ad Frequency Calculator](https://dev.stefanbrain.com/tools/ad-frequency-calculator): Impressions over reach: how often people actually see your ad, and when fatigue starts. Formula: frequency = impressions / reach.
- [Hook Rate Calculator](https://dev.stefanbrain.com/tools/hook-rate-calculator): Measure how many impressions survive the first 3 seconds of your video ad, and how many hold. Formula: hook rate% = 3-second plays / impressions x 100; hold rate% = ThruPlays / 3-second plays x 100.
- [ACoS Calculator](https://dev.stefanbrain.com/tools/acos-calculator): Amazon ad cost of sale, TACoS, and the break-even ACoS your margin allows. Formula: ACoS% = ad spend / ad revenue x 100; TACoS% = ad spend / total revenue x 100; break-even ACoS = post-fee contribution margin%.
- [AOV Calculator](https://dev.stefanbrain.com/tools/aov-calculator): Compute average order value and model what bundles or thresholds do to it. Formula: AOV = revenue / orders.
- [Contribution Margin Calculator](https://dev.stefanbrain.com/tools/contribution-margin-calculator): What each order really leaves behind after every variable cost, in dollars and percent. Formula: margin = price - COGS - shipping - processing - other variable; margin rate = margin / price.
- [LTV Calculator](https://dev.stefanbrain.com/tools/ltv-calculator): Estimate customer lifetime value from order value, purchase frequency, and margin. Formula: revenue LTV = AOV x orders per year x years; margin LTV = revenue LTV x margin rate.
- [CAC Calculator](https://dev.stefanbrain.com/tools/cac-calculator): Customer acquisition cost, paid and blended, and why the two diverge. Formula: paid CAC = paid spend / new customers; blended CAC = (paid + other acquisition spend) / new customers.
- [LTV:CAC Ratio Calculator](https://dev.stefanbrain.com/tools/ltv-cac-ratio-calculator): The one ratio that says whether growth spend is building a business or renting revenue. Formula: ratio = margin LTV / CAC; healthy is directionally 3 to 5.
- [CAC Payback Calculator](https://dev.stefanbrain.com/tools/cac-payback-calculator): How many months until a new customer pays back their acquisition cost. Formula: monthly margin = AOV x margin rate x orders per month; payback months = CAC / monthly margin.
- [Marketing ROI Calculator](https://dev.stefanbrain.com/tools/marketing-roi-calculator): Return on marketing investment in profit terms, and how it differs from ROAS. Formula: ROI% = (revenue x margin rate - cost) / cost x 100.
- [Discount Break-Even Calculator](https://dev.stefanbrain.com/tools/discount-breakeven-calculator): How much extra volume a sale needs before the discount pays for itself. Formula: volume lift needed% = discount% / (margin% - discount%) x 100; impossible when discount >= margin.
- [Free Shipping Threshold Calculator](https://dev.stefanbrain.com/tools/free-shipping-threshold-calculator): Set the free shipping bar that lifts AOV without quietly eating your margin. Formula: suggested threshold = AOV x (1 + uplift%) rounded to $5; subsidy covered when cart growth >= shipping cost / margin rate.
- [A/B Test Significance Calculator](https://dev.stefanbrain.com/tools/ab-test-significance-calculator): Check whether your test winner is real or noise, with p-value and confidence. Formula: two-proportion two-tailed z-test: z = (pB - pA) / sqrt(pooled p x (1 - pooled p) x (1/nA + 1/nB)); significant when p-value < 0.05.
- [A/B Test Sample Size Calculator](https://dev.stefanbrain.com/tools/ab-test-sample-size-calculator): How many visitors each variant needs before your test can detect a real lift. Formula: n per variant = (z_alpha x sqrt(2 x pbar x (1-pbar)) + z_beta x sqrt(p1(1-p1) + p2(1-p2)))^2 / (p2-p1)^2.
- [Creative Testing Budget Calculator](https://dev.stefanbrain.com/tools/creative-testing-budget-calculator): Size the budget a creative test actually needs to reach a readable result per concept. Formula: budget per concept = expected CPA x orders per concept (directionally 50); total = per concept x concepts; days = total / daily budget.
- [UTM Builder](https://dev.stefanbrain.com/tools/utm-builder): Build clean campaign URLs with presets for Meta, TikTok, Google, and email. Copy and go. Formula: appends utm_source, utm_medium, utm_campaign, utm_term, utm_content to a URL; values lowercased and hyphenated; replaces existing utm tags.
- [Ad Character Counter](https://dev.stefanbrain.com/tools/ad-character-counter): Live character counts against Meta, Google, and TikTok ad limits, before the platform truncates you. Formula: counts characters by code point against per-platform visible limits (Meta primary 125 / headline 40 / description 30; Google RSA 30/90; TikTok 100).

## Product use cases

- [Use cases index](https://dev.stefanbrain.com/uses): how DTC teams use each StefanBrain surface.
- [Copy Chief](https://dev.stefanbrain.com/uses/copy-chief): Review and rewrite ads, product pages, advertorials, and emails against 1,500+ real funnel reviews.
- [Static Ad Generator](https://dev.stefanbrain.com/uses/static-ads): Generate Meta-ready static ad concepts built around testable hooks, angles, offers, and visual patterns.
- [AI Video Generation](https://dev.stefanbrain.com/uses/video-ads): UGC, narrated, animated, and B-roll-heavy video ads generated and iterated from one brief.
- [CRO Funnel Tool](https://dev.stefanbrain.com/uses/cro): One prompt turns any landing page, PDP, or advertorial into a prioritized list of conversion fixes.
- [Build Mode](https://dev.stefanbrain.com/uses/build): Spin up advertorials, product pages, and full funnels from scratch, or clone a competitor structure for your offer.
- [Bulk Meta Publishing](https://dev.stefanbrain.com/uses/meta-publishing): Push creative batches straight to your ad account and let performance flow back into the system.

## Guides

- [The DTC unit economics stack, from margin to payback](https://dev.stefanbrain.com/blog/dtc-unit-economics-guide): Contribution margin, break-even ROAS, LTV, CAC, and payback: the five numbers that decide whether a DTC brand can buy growth, worked end to end.
- [The math of planning Meta ad spend](https://dev.stefanbrain.com/blog/meta-ads-planning-math): Budget to impressions to clicks to orders: how to project a Meta plan honestly, which lever moves ROAS, and when a plan is really a creative brief.
- [How to size and read creative tests](https://dev.stefanbrain.com/blog/creative-testing-playbook): Orders per concept, sample sizes, significance, and early-kill signals: a working playbook for creative testing budgets that produce readable results.
- [ROAS, MER, ACoS, ROI: which number to trust](https://dev.stefanbrain.com/blog/roas-mer-acos-roi-explained): Four efficiency metrics, four different questions. What each one actually measures, where each lies, and how DTC teams use them together.
- [UTM tagging that survives scale](https://dev.stefanbrain.com/blog/utm-tracking-guide): A naming taxonomy for utm_source, medium, campaign, and content that stays readable at 50 campaigns, plus the mistakes that wreck GA4 reporting.
- [Team access in StefanBrain: locks, requests, approvals](https://dev.stefanbrain.com/blog/team-access-guide): How owners and admins control which teammates can use Video, Launch, and Creative Strategist, and how members request access in one click.

## Integrations

- [Integrations index](https://dev.stefanbrain.com/integrations): every platform StefanBrain connects to, with setup guides.
- [Connect StefanBrain to ActiveCampaign](https://dev.stefanbrain.com/integrations/activecampaign): Automate email journeys and manage contacts. Auth: API key.
- [Connect StefanBrain to Ahrefs](https://dev.stefanbrain.com/integrations/ahrefs): Analyze backlinks, keywords, and site health. Auth: API key.
- [Connect StefanBrain to Air](https://dev.stefanbrain.com/integrations/air): Browse and pull creative assets from your Air library. Auth: API key.
- [Connect StefanBrain to Amplitude](https://dev.stefanbrain.com/integrations/amplitude): Explore user journeys, funnels, and retention. Auth: API key.
- [Connect StefanBrain to Apollo.io](https://dev.stefanbrain.com/integrations/apollo): Find prospects and enrich contact data. Auth: API key.
- [Connect StefanBrain to AppLovin](https://dev.stefanbrain.com/integrations/applovin): Track and analyze your AppLovin ad performance. Auth: API key.
- [Connect StefanBrain to Appstle](https://dev.stefanbrain.com/integrations/appstle): Work with your Appstle subscriptions and schedules. Auth: API key.
- [Connect StefanBrain to Asana](https://dev.stefanbrain.com/integrations/asana): Manage tasks, projects, and goals. Auth: Sign in with OAuth.
- [Connect StefanBrain to Attio](https://dev.stefanbrain.com/integrations/attio): Manage relationships and pipelines in your CRM. Auth: Sign in with OAuth.
- [Connect StefanBrain to Basecamp](https://dev.stefanbrain.com/integrations/basecamp): Manage projects, to-dos, and messages. Auth: Sign in with OAuth.
- [Connect StefanBrain to BaseLinker](https://dev.stefanbrain.com/integrations/baselinker): Sync orders, inventory, and listings across sales channels. Auth: API key.
- [Connect StefanBrain to Box](https://dev.stefanbrain.com/integrations/box): Search and manage files and folders. Auth: Sign in with OAuth.
- [Connect StefanBrain to Brandfetch](https://dev.stefanbrain.com/integrations/brandfetch): Pull logos, colors, and brand assets. Auth: API key.
- [Connect StefanBrain to Brevo](https://dev.stefanbrain.com/integrations/brevo): Send campaigns and manage contacts and automations. Auth: API key.
- [Connect StefanBrain to Cal.com](https://dev.stefanbrain.com/integrations/cal): Manage bookings and availability. Auth: Sign in with OAuth.
- [Connect StefanBrain to Calendly](https://dev.stefanbrain.com/integrations/calendly): Share booking links and manage scheduled events. Auth: Sign in with OAuth.
- [Connect StefanBrain to Canva](https://dev.stefanbrain.com/integrations/canva): Create and export designs from your templates. Auth: Sign in with OAuth.
- [Connect StefanBrain to Cardly](https://dev.stefanbrain.com/integrations/cardly): Send handwritten-style cards to customers. Auth: API key.
- [Connect StefanBrain to ClickSend](https://dev.stefanbrain.com/integrations/clicksend): Send SMS, email, and direct mail campaigns. Auth: API key.
- [Connect StefanBrain to ClickUp](https://dev.stefanbrain.com/integrations/clickup): Manage tasks, docs, and goals. Auth: Sign in with OAuth.
- [Connect StefanBrain to Close](https://dev.stefanbrain.com/integrations/close): Manage leads, calls, and sales outreach. Auth: API key.
- [Connect StefanBrain to Cloudinary](https://dev.stefanbrain.com/integrations/cloudinary): Manage, transform, and deliver media assets. Auth: API key.
- [Connect StefanBrain to Coda](https://dev.stefanbrain.com/integrations/coda): Read and update docs and tables. Auth: API key.
- [Connect StefanBrain to Commslayer](https://dev.stefanbrain.com/integrations/commslayer): Search, resolve, and manage your Commslayer support conversations and help center. Auth: Sign in with OAuth.
- [Connect StefanBrain to Confluence](https://dev.stefanbrain.com/integrations/confluence): Search and update team documentation. Auth: Sign in with OAuth.
- [Connect StefanBrain to ConvertKit / Kit](https://dev.stefanbrain.com/integrations/convertkit): Manage subscribers, broadcasts, and sequences. Auth: Sign in with OAuth.
- [Connect StefanBrain to CrustData](https://dev.stefanbrain.com/integrations/crustdata): Enrich companies and people with live data. Auth: API key.
- [Connect StefanBrain to Customer.io](https://dev.stefanbrain.com/integrations/customer-io): Trigger messages and manage customer journeys. Auth: API key.
- [Connect StefanBrain to DataForSEO](https://dev.stefanbrain.com/integrations/dataforseo): Research keywords, rankings, and backlinks. Auth: API key.
- [Connect StefanBrain to Discord](https://dev.stefanbrain.com/integrations/discord): Send messages and manage your server. Auth: Sign in with OAuth.
- [Connect StefanBrain to Dropbox](https://dev.stefanbrain.com/integrations/dropbox): Search, read, and organize your files. Auth: Sign in with OAuth.
- [Connect StefanBrain to Dub](https://dev.stefanbrain.com/integrations/dub): Create short links and track click analytics. Auth: Sign in with OAuth.
- [Connect StefanBrain to DynaPictures](https://dev.stefanbrain.com/integrations/dynapictures): Generate on-brand images from templates. Auth: API key.
- [Connect StefanBrain to EmailListVerify](https://dev.stefanbrain.com/integrations/emaillistverify): Clean and verify email lists before you send. Auth: API key.
- [Connect StefanBrain to EmailOctopus](https://dev.stefanbrain.com/integrations/emailoctopus): Send email campaigns and newsletters. Auth: API key.
- [Connect StefanBrain to Endorsal](https://dev.stefanbrain.com/integrations/endorsal): Collect and publish customer testimonials. Auth: API key.
- [Connect StefanBrain to Everflow](https://dev.stefanbrain.com/integrations/everflow): Work with your Everflow affiliates, offers, and reports. Auth: API key.
- [Connect StefanBrain to ExpertSender](https://dev.stefanbrain.com/integrations/expertsender): Work with your ExpertSender customers, orders, and campaigns. Auth: API key.
- [Connect StefanBrain to Fathom Notetaker](https://dev.stefanbrain.com/integrations/fathom-notetaker): Pull meeting summaries and action items. Auth: Sign in with OAuth.
- [Connect StefanBrain to Figma](https://dev.stefanbrain.com/integrations/figma): Read files, comments, and design components. Auth: Sign in with OAuth.
- [Connect StefanBrain to Fireflies.ai](https://dev.stefanbrain.com/integrations/fireflies): Search meeting transcripts and summaries. Auth: API key.
- [Connect StefanBrain to Folk](https://dev.stefanbrain.com/integrations/folk): Manage contacts, pipelines, and outreach. Auth: API key.
- [Connect StefanBrain to Freshdesk](https://dev.stefanbrain.com/integrations/freshdesk): Manage support tickets and customer queries. Auth: API key.
- [Connect StefanBrain to Gmail](https://dev.stefanbrain.com/integrations/gmail): Search, read, draft, and send email. Auth: Sign in with OAuth.
- [Connect StefanBrain to Gong](https://dev.stefanbrain.com/integrations/gong): Review call recordings and deal insights. Auth: Sign in with OAuth.
- [Connect StefanBrain to Google Ads](https://dev.stefanbrain.com/integrations/google-ads): Manage your Google Ads campaigns and performance. Auth: Sign in with OAuth.
- [Connect StefanBrain to Google Analytics](https://dev.stefanbrain.com/integrations/google-analytics): See your traffic, conversions, and audience reports. Auth: Sign in with OAuth.
- [Connect StefanBrain to Google Calendar](https://dev.stefanbrain.com/integrations/google-calendar): Read calendars and create or update events. Auth: Sign in with OAuth.
- [Connect StefanBrain to Google Docs](https://dev.stefanbrain.com/integrations/google-docs): Read, write, and edit documents. Auth: Sign in with OAuth.
- [Connect StefanBrain to Google Drive](https://dev.stefanbrain.com/integrations/google-drive): Search and manage Drive files, Docs, Sheets, and Slides. Auth: Sign in with OAuth.
- [Connect StefanBrain to Google Search Console](https://dev.stefanbrain.com/integrations/google-search-console): Track search performance and indexing for your site. Auth: Sign in with OAuth.
- [Connect StefanBrain to Google Sheets](https://dev.stefanbrain.com/integrations/google-sheets): Read and update spreadsheets and ranges. Auth: Sign in with OAuth.
- [Connect StefanBrain to Google Slides](https://dev.stefanbrain.com/integrations/google-slides): Create and edit presentations. Auth: Sign in with OAuth.
- [Connect StefanBrain to Gorgias](https://dev.stefanbrain.com/integrations/gorgias): Handle support tickets for your store. Auth: Sign in with OAuth.
- [Connect StefanBrain to Granola](https://dev.stefanbrain.com/integrations/granola): Search your Granola meeting notes and transcripts. Auth: Sign in with OAuth.
- [Connect StefanBrain to Heatmap](https://dev.stefanbrain.com/integrations/heatmap): Analyze your Heatmap behavior and revenue data. Auth: Sign in with OAuth.
- [Connect StefanBrain to Hex](https://dev.stefanbrain.com/integrations/hex): Run notebooks and query your data warehouse. Auth: API key.
- [Connect StefanBrain to HubSpot](https://dev.stefanbrain.com/integrations/hubspot): Manage contacts, deals, and marketing campaigns. Auth: Sign in with OAuth.
- [Connect StefanBrain to Hunter.io](https://dev.stefanbrain.com/integrations/hunter): Find and verify professional email addresses. Auth: API key.
- [Connect StefanBrain to HYROS](https://dev.stefanbrain.com/integrations/hyros): Track your HYROS attribution, leads, and calls. Auth: API key.
- [Connect StefanBrain to Instagram](https://dev.stefanbrain.com/integrations/instagram): Publish posts and read profile and media insights. Auth: Sign in with OAuth.
- [Connect StefanBrain to Instantly](https://dev.stefanbrain.com/integrations/instantly): Run cold email campaigns at scale. Auth: API key.
- [Connect StefanBrain to Intercom](https://dev.stefanbrain.com/integrations/intercom): Message customers and manage support conversations. Auth: Sign in with OAuth.
- [Connect StefanBrain to Jira](https://dev.stefanbrain.com/integrations/jira): Create and manage issues and sprints. Auth: Sign in with OAuth.
- [Connect StefanBrain to Jotform](https://dev.stefanbrain.com/integrations/jotform): Build forms and manage submissions. Auth: API key.
- [Connect StefanBrain to Judge.me](https://dev.stefanbrain.com/integrations/judgeme): Work with your Judge.me product reviews. Auth: API key.
- [Connect StefanBrain to Klaviyo](https://dev.stefanbrain.com/integrations/klaviyo): Work with your Klaviyo campaigns, flows, and lists. Auth: Sign in with OAuth.
- [Connect StefanBrain to KnoCommerce](https://dev.stefanbrain.com/integrations/knocommerce): Analyze your KnoCommerce post-purchase surveys and attribution. Auth: Sign in with OAuth.
- [Connect StefanBrain to Lemlist](https://dev.stefanbrain.com/integrations/lemlist): Personalize cold outreach and follow-ups. Auth: API key.
- [Connect StefanBrain to Linear](https://dev.stefanbrain.com/integrations/linear): Create and track issues, projects, and cycles. Auth: Sign in with OAuth.
- [Connect StefanBrain to LinkedIn](https://dev.stefanbrain.com/integrations/linkedin): Post content and manage your LinkedIn presence. Auth: Sign in with OAuth.
- [Connect StefanBrain to LiveSession](https://dev.stefanbrain.com/integrations/livesession): Watch session replays and analyze user behavior. Auth: API key.
- [Connect StefanBrain to Lob](https://dev.stefanbrain.com/integrations/lob): Send letters and postcards programmatically. Auth: API key.
- [Connect StefanBrain to Loop](https://dev.stefanbrain.com/integrations/loop): Track and manage your Loop returns. Auth: API key.
- [Connect StefanBrain to Loops.so](https://dev.stefanbrain.com/integrations/loops-so): Send product email and manage your audience. Auth: API key.
- [Connect StefanBrain to Lusha](https://dev.stefanbrain.com/integrations/lusha): Find verified emails and phone numbers. Auth: API key.
- [Connect StefanBrain to Mailchimp](https://dev.stefanbrain.com/integrations/mailchimp): Manage audiences and send email campaigns. Auth: Sign in with OAuth.
- [Connect StefanBrain to MailerLite](https://dev.stefanbrain.com/integrations/mailerlite): Manage subscribers and send newsletters. Auth: API key.
- [Connect StefanBrain to MailerSend](https://dev.stefanbrain.com/integrations/mailersend): Send transactional email and SMS from your domain. Auth: API key.
- [Connect StefanBrain to Make](https://dev.stefanbrain.com/integrations/make): Trigger and monitor automation scenarios. Auth: API key.
- [Connect StefanBrain to ManyChat](https://dev.stefanbrain.com/integrations/manychat): Work with your ManyChat subscribers, flows, and messages. Auth: API key.
- [Connect StefanBrain to Maropost](https://dev.stefanbrain.com/integrations/maropost): Work with your Maropost lists, contacts, and campaigns. Auth: API key.
- [Connect StefanBrain to Maxio](https://dev.stefanbrain.com/integrations/maxio): Manage your subscription billing and invoicing. Auth: API key.
- [Connect StefanBrain to Meta](https://dev.stefanbrain.com/integrations/meta): Work with your Meta ads: campaigns, creative, and results. Auth: Sign in with OAuth.
- [Connect StefanBrain to Metabase](https://dev.stefanbrain.com/integrations/metabase): Pull answers from your dashboards and reports. Auth: API key.
- [Connect StefanBrain to Microsoft Clarity](https://dev.stefanbrain.com/integrations/clarity): Explore your Clarity session recordings and analytics. Auth: API key.
- [Connect StefanBrain to Microsoft Teams](https://dev.stefanbrain.com/integrations/teams): Send messages and work with channels. Auth: Sign in with OAuth.
- [Connect StefanBrain to Miro](https://dev.stefanbrain.com/integrations/miro): Work with boards, sticky notes, and diagrams. Auth: Sign in with OAuth.
- [Connect StefanBrain to Mixpanel](https://dev.stefanbrain.com/integrations/mixpanel): Analyze product events, funnels, and retention. Auth: API key.
- [Connect StefanBrain to Monday.com](https://dev.stefanbrain.com/integrations/monday): Work with your Monday boards, items, and updates. Auth: Sign in with OAuth.
- [Connect StefanBrain to Motion](https://dev.stefanbrain.com/integrations/motion): Analyze creative performance and competitors in Motion. Auth: Sign in with OAuth.
- [Connect StefanBrain to Moz](https://dev.stefanbrain.com/integrations/moz): Track rankings and analyze domain authority. Auth: API key.
- [Connect StefanBrain to Notion](https://dev.stefanbrain.com/integrations/notion): Search and update pages, databases, and workspace content. Auth: Sign in with OAuth.
- [Connect StefanBrain to Omnisend](https://dev.stefanbrain.com/integrations/omnisend): Send email and SMS campaigns for your store. Auth: Sign in with OAuth.
- [Connect StefanBrain to OneDrive](https://dev.stefanbrain.com/integrations/onedrive): Search and manage files in OneDrive. Auth: Sign in with OAuth.
- [Connect StefanBrain to Ontraport](https://dev.stefanbrain.com/integrations/ontraport): Work with your Ontraport contacts, automations, and sales. Auth: Sign in with OAuth.
- [Connect StefanBrain to Pipedrive](https://dev.stefanbrain.com/integrations/pipedrive): Track deals and manage your sales pipeline. Auth: API key.
- [Connect StefanBrain to Plausible](https://dev.stefanbrain.com/integrations/plausible): Check simple, privacy-friendly site analytics. Auth: API key.
- [Connect StefanBrain to PostGrid](https://dev.stefanbrain.com/integrations/postgrid): Automate letters, postcards, and address checks. Auth: API key.
- [Connect StefanBrain to Postmark](https://dev.stefanbrain.com/integrations/postmark): Deliver transactional email with detailed message logs. Auth: API key.
- [Connect StefanBrain to QuickBooks](https://dev.stefanbrain.com/integrations/quickbooks): Sync invoices, expenses, and accounting data. Auth: Sign in with OAuth.
- [Connect StefanBrain to Re:amaze](https://dev.stefanbrain.com/integrations/reamaze): Manage support chats and helpdesk conversations. Auth: API key.
- [Connect StefanBrain to Recharge](https://dev.stefanbrain.com/integrations/recharge): Work with your Recharge subscriptions, customers, and orders. Auth: API key.
- [Connect StefanBrain to Reddit](https://dev.stefanbrain.com/integrations/reddit): Post, monitor, and advertise on Reddit. Auth: Sign in with OAuth.
- [Connect StefanBrain to RedTrack](https://dev.stefanbrain.com/integrations/redtrack): Work with your RedTrack campaigns, offers, and reports. Auth: API key.
- [Connect StefanBrain to Salesforce](https://dev.stefanbrain.com/integrations/salesforce): Manage leads, opportunities, and accounts. Auth: Sign in with OAuth.
- [Connect StefanBrain to Segmetrics](https://dev.stefanbrain.com/integrations/segmetrics): Tie revenue back to campaigns and funnels. Auth: API key.
- [Connect StefanBrain to Semrush](https://dev.stefanbrain.com/integrations/semrush): Research keywords, rankings, and competitors. Auth: API key.
- [Connect StefanBrain to SendGrid](https://dev.stefanbrain.com/integrations/sendgrid): Send email at scale and track delivery. Auth: API key.
- [Connect StefanBrain to Sendloop](https://dev.stefanbrain.com/integrations/sendloop): Send email campaigns and manage subscriber lists. Auth: API key.
- [Connect StefanBrain to SerpApi](https://dev.stefanbrain.com/integrations/serpapi): Check live search results and rankings. Auth: API key.
- [Connect StefanBrain to ShipBob](https://dev.stefanbrain.com/integrations/shipbob): Track your ShipBob orders, inventory, and fulfillment. Auth: API key.
- [Connect StefanBrain to Shippo](https://dev.stefanbrain.com/integrations/shippo): Create labels, compare rates, and track shipments. Auth: Sign in with OAuth.
- [Connect StefanBrain to Shopify](https://dev.stefanbrain.com/integrations/shopify): Manage products, orders, customers, and discounts in your store. Auth: Custom app credentials.
- [Connect StefanBrain to Skio](https://dev.stefanbrain.com/integrations/skio): Work with your Skio subscriptions and billing. Auth: API key.
- [Connect StefanBrain to Slack](https://dev.stefanbrain.com/integrations/slack): Search messages, read threads, and send updates. Auth: Sign in with OAuth.
- [Connect StefanBrain to Square](https://dev.stefanbrain.com/integrations/square): Track payments, orders, and customers. Auth: Sign in with OAuth.
- [Connect StefanBrain to Stannp](https://dev.stefanbrain.com/integrations/stannp): Send direct mail campaigns by post. Auth: API key.
- [Connect StefanBrain to Stripe](https://dev.stefanbrain.com/integrations/stripe): Manage customers, invoices, subscriptions, refunds, and payments. Auth: Sign in with OAuth.
- [Connect StefanBrain to SurveyMonkey](https://dev.stefanbrain.com/integrations/surveymonkey): Run surveys and analyze responses. Auth: API key.
- [Connect StefanBrain to Tally](https://dev.stefanbrain.com/integrations/tally): Create forms and collect submissions. Auth: API key.
- [Connect StefanBrain to Tapfiliate](https://dev.stefanbrain.com/integrations/tapfiliate): Track affiliates, referrals, and commissions. Auth: API key.
- [Connect StefanBrain to Telegram](https://dev.stefanbrain.com/integrations/telegram): Send messages and manage channels. Auth: API key.
- [Connect StefanBrain to Trello](https://dev.stefanbrain.com/integrations/trello): Manage boards, lists, and cards. Auth: Sign in with OAuth.
- [Connect StefanBrain to Triple Whale](https://dev.stefanbrain.com/integrations/triplewhale): Analyze your store's performance with Triple Whale. Auth: API key.
- [Connect StefanBrain to Typeform](https://dev.stefanbrain.com/integrations/typeform): Create forms and pull response data. Auth: Sign in with OAuth.
- [Connect StefanBrain to Typefully](https://dev.stefanbrain.com/integrations/typefully): Draft, schedule, and publish social posts. Auth: API key.
- [Connect StefanBrain to Webflow](https://dev.stefanbrain.com/integrations/webflow): Manage CMS content, pages, and your online store. Auth: API key.
- [Connect StefanBrain to WhatsApp Business](https://dev.stefanbrain.com/integrations/whatsapp): Message customers on WhatsApp. Auth: Sign in with OAuth.
- [Connect StefanBrain to Wix](https://dev.stefanbrain.com/integrations/wix): Manage your Wix site, store, and content. Auth: API key.
- [Connect StefanBrain to WordPress.com](https://dev.stefanbrain.com/integrations/wordpress): Manage your WordPress.com sites and content. Auth: Sign in with OAuth.
- [Connect StefanBrain to X / Twitter](https://dev.stefanbrain.com/integrations/twitter): Post and analyze content on X. Auth: Sign in with OAuth.
- [Connect StefanBrain to Yotpo](https://dev.stefanbrain.com/integrations/yotpo): Work with your Yotpo reviews and customers. Auth: API key.
- [Connect StefanBrain to YouTube](https://dev.stefanbrain.com/integrations/youtube): Manage videos, playlists, and channel analytics. Auth: Sign in with OAuth.
- [Connect StefanBrain to Zendesk](https://dev.stefanbrain.com/integrations/zendesk): Manage support tickets and help center content. Auth: Sign in with OAuth.
- [Connect StefanBrain to Zigpoll](https://dev.stefanbrain.com/integrations/zigpoll): Run and analyze Zigpoll surveys, polls, and customer feedback. Auth: Sign in with OAuth.
- [Connect StefanBrain to Zite](https://dev.stefanbrain.com/integrations/zite): Work with your Zite databases and records. Auth: Sign in with OAuth.
- [Connect StefanBrain to Zoho CRM](https://dev.stefanbrain.com/integrations/zoho): Manage leads, contacts, and deals in Zoho. Auth: Sign in with OAuth.
- [Connect StefanBrain to Zoom](https://dev.stefanbrain.com/integrations/zoom): Schedule meetings and pull recordings. Auth: Sign in with OAuth.