Tools

Cartesia's official voice MCP: turn text into natural speech, transcribe recordings, clone voices and localize a voice into other languages from chat, for course narration, audio content and voiceovers. Hosted; sign in with your Cartesia account in the browser. Free tier available.

Carta's official equity plugin: ask about cap tables, option grants and vesting, SAFE conversions, 409A valuation history and liquidation waterfall scenarios, plus compensation benchmarks and drafting share issuances. Needs a Carta account (OAuth); collects usage telemetry. Have results reviewed.

Dropbox's official plugin (Claude, Codex and Cursor versions): search and browse Dropbox files, read and summarize documents, create shared links, send file requests to collect materials, and organize folders, confirming a list before deleting. Respects existing permissions; needs Dropbox sign-in.

ZoomInfo's official sales intelligence plugin with 14 skills: find target companies and decision makers, enrich leads and accounts, find lookalike customers, score accounts and leads on intent signals, prep account meetings and draft outreach emails. Needs a paid ZoomInfo account with API access.

Hunter.io's official plugin: find and verify work emails by name and company, list a domain's contacts, enrich company data, build lead lists, create outreach email sequences and push them to your CRM. Needs a Hunter account (free plan: 25 searches a month); follow anti-spam and privacy laws.

Lovable's official plugin: includes the Lovable remote MCP to create, edit, deploy and manage websites and apps in plain language, so founders and PMs can build interactive prototypes fast. Needs a Lovable account; generation and edits use Lovable credits.

Airwallex's official plugin: extract details from contracts or POs to create invoices and subscriptions, add beneficiaries from supplier documents, issue employee cards with limits, and summarize multi-currency balances and FX exposure. Needs an Airwallex business account; finance should review.

Airwallex's official CLI: lets agents check multi-currency balances, beneficiaries, transfers and FX, and manage billing customers, invoices, subscriptions, corporate cards and expenses. Needs an Airwallex business account; macOS and Linux. Closed-source beta; confirm real-money actions manually.

HubSpot's official CLI for AI agents (beta): find and bulk-update contacts, companies, deals and tickets, log calls and meetings, advance deal stages and route conversations, with an official skill pack. Needs a HubSpot account and browser login; writes hit live data, so try --dry-run first.

PagerDuty's official plugin: analyzes your current git diff against the service's past incidents and change events, gives a 0-5 risk score and suggestions before you commit, and can create PagerDuty SRE Agent skills (early access program required). Needs a PagerDuty API token.

Plain's official plugin: look up customers, threads and SLAs in Claude Code, add internal notes, create and update help center articles, and draft broadcast announcements (saved as drafts, never sent). Needs a Plain API key plus curl and jq; not in a marketplace; clone the repo to load it.

Vanta's official plugin: from Claude Code, review control gaps for SOC 2, ISO 27001 and other frameworks, failing tests, vendor risk and policies, and generate fixes for code-level issues. Needs admin access to a paid Vanta account (browser auth); have compliance conclusions reviewed by an expert.

Avalara's official hosted MCP servers: US sales tax calculation, returns filing, e-invoicing, exemption certificates, cross-border duties and HS code classification. Needs an Avalara account (AvaTax has a 90-day trial) and browser OAuth; the command adds AvaTax. Have a tax professional review.

HubSpot's official sales plugin with the HubSpot remote MCP: skills to import contacts and deals, get daily briefs, prep calls, draft follow-up emails, log call notes back to HubSpot and review the pipeline. Needs a HubSpot account.

Lusha's official prospecting plugin: find decision makers by ideal customer profile, enrich verified emails, direct and mobile numbers and company signals, find lookalikes, generate personalized outreach sequences and export CSV. Needs Lusha API access; lookups use credits. Respect privacy laws.

Sentry's official plugin: skills for SDK setup across platforms, production issue debugging, Sentry-aware code review and alert configuration, plus the hosted Sentry MCP to query errors and stack traces. Needs a Sentry account.

Circleback's official plugin: agents search meeting notes, timestamped transcripts, action items, calendar events and connected email via its remote MCP, for post-meeting notes and follow-ups. Needs a Circleback account recording your meetings (free tier works); authorize via /mcp.

Shippo's official plugin: compare rates from dozens of carriers (USPS, UPS, FedEx, DHL), validate addresses, buy labels incl. customs, track packages, ship in bulk and analyze costs. Needs a Shippo account (OAuth); rates and validation are free, labels cost. Mainly for North American sellers.

ASSISTments' official math assessment plugin: breaks a math standard (such as US CCSS) into teachable, testable sub-skills and an item plan, then generates targeted practice or mastery quizzes for teacher review first. Drafting works as is; saving to ASSISTments needs its MCP and an account.

Intuit's official QuickBooks plugin: health checks on profit, cash flow, balance sheet and receivables, peer benchmarking and payroll cost analysis, and drafts payment reminders, estimates and invoices, confirming before writes. Needs QuickBooks Online (official connector); have finance review.

Windsor.ai's official plugin: connects ad accounts on Google, Meta, TikTok and more plus 350+ data sources such as GA4 and CRMs for quick cross-channel performance reports and wasted-spend detection; asks before changing budgets or pausing ads. Needs a Windsor.ai account with data sources connected.

Coursera's official learning plugin: asks about your topic, background and preferred formats, then searches the Coursera catalog to recommend courses, hands-on projects, short videos or role-play practice, and plans your next learning steps. Requires the Coursera connector to be enabled.

Official plugin for Windmill performance management: write feedback and kudos for colleagues, manage 1:1 agendas and private notes about teammates, create and schedule pulse surveys, and summarize team updates. Needs a Windmill account (free up to 10 users); browser sign-in.

100Hires' official hosted ATS MCP: HR can manage candidates, job postings, pipeline stages, interview scheduling, email templates and scorecards from chat, covering its full API. Sign in via browser OAuth, nothing to install. Needs a paid 100Hires account (14-day free trial).