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Nusii

The proposal software serious businesses use to win more work·nusii.com

Nusii is online proposal software that lets freelancers, creative agencies, and professional services businesses create, track, and manage client proposals. It offers legally binding e-signatures, interactive/optional pricing, reusable templates, video embedding, real-time viewing notifications, and payment collection via Stripe. It also provides an API, webhooks, an MCP server, and a CLI for integrating proposal data with CRMs and AI assistants.

What it's for

Send branded, web-based proposals to clients instead of PDFs or Word documentsGet real-time notifications when a proposal is viewedCollect legally binding digital signatures on proposalsOffer interactive pricing or optional/upsell packages clients can toggleReuse proposal templates and a content library across dealsEmbed videos directly in proposalsAccept payment on proposal acceptance via StripeSend proposals in multiple currenciesConnect proposal events to a CRM, Zapier, or Slack

Features 21

API access with request logs
Content library with reusable sections
CRM integrations (Hubspot, Pipedrive)
Custom branding (colors, logo)
Custom domain for sending proposals
Interactive/optional pricing tables
Legally binding electronic signatures
Localized in 35 languages
MCP server for AI assistants (Claude, ChatGPT, Gemini, Copilot)
Multi-currency and tax handling
Multi-signature support
Outreach reminders
PDF export
Real-time notifications (email opens, proposal opens, signature)
Reusable proposal templates
Send proposals from own email/domain
Stripe payment integration
Two-Factor Authentication
Video embedding (YouTube, Vimeo, or upload)
Webhooks
Zapier integration

At a glance

free trialAPI

TypeWeb app

DeploymentCloud

PlatformsWeb

Forfreelancers, creative agencies, professional services businesses, marketing agencies, sales teams, SaaS companies, construction businesses, solo consultants

CompanyNusii Proposals S.L. · 2012

Integrations

HubspotPipedriveZapierSlackStripeClaudeChatGPTGeminiMicrosoft Copilot StudioCodex

Resources

Docs

Pricing

The Agency plan costs $49/mo for 3 seats. Freelancer and Business plan monthly prices are not publicly disclosed. Annual billing offers 2 months free, but exact annual figures are not shown. Custom plans are available via quote.

FreelancerQuote

Price not explicitly stated on the pricing page.

5 active proposals, 1 user

Agency$49/mo

Price stated on homepage as 'just $49/mo... Not $49 per user per month' for 3 seats.

20 active proposals, 3 users included (additional seats $19/user/month)

BusinessQuote

Price not explicitly stated on the pricing page; demo offered instead of direct signup.

50+ active proposals, 5 users included (additional seats $29/user/month)

Custom planQuote

For custom plans please contact us directly.

For teams needing more than the Business plan