Tool profile
Seller Assistant: cost, fit and limits
Seller Assistant is an Amazon seller toolkit sold through sellerassistant.app by Linen Art, LLC that combines a browser extension, bulk restriction checks, a repricer, AI supplier search and, on higher plans, an MCP server and API.
What to know first
Seller Assistant starts at $29.99 per month on Pro, or $24.99 per month billed annually. Business is $79.99 monthly and brings unlimited workflow management, an MCP server, API access and Zapier, Make and n8n connections, with a 14-day free trial. Business Plus costs $189.99 and Agency starts at $999.99 on an annual contract. The pricing FAQ states that refunds are not offered.
Seller Assistant at a glance
| Maker | Linen Art, LLC, Not stated on the vendor pages |
|---|---|
| Free plan | Free trial only |
| Entry price | $29.99 per month billed monthly (Pro) |
| API access | Yes |
| Category | Best AI Amazon Seller Tools in 2026, rank 4 of 12 |
| Website | sellerassistant.app |
Who Seller Assistant is best for
Wholesale and online arbitrage buyers
Pro covers 4,000 bulk restriction checks and 10,000 extension lookups a month, a fit for sellers who review long supplier lists before deciding what to buy.
Sellers who build automations
Business supports API access and Zapier, Make and n8n connections, so supplier data can flow into spreadsheets and other tools without manual copying between windows.
Agencies managing several stores
Agency has unlimited seats and workspaces, SSO, an SLA and a customer success manager, and is sold through the vendor's sales team on an annual contract.
Seller Assistant plans and pricing
| Plan | Price | What it includes |
|---|---|---|
| Pro | $29.99/mo billed monthly; $24.99/mo or $299.99/year billed annually | Extension with 10,000 lookups a month, IP-Alert, 2 seats and 10 AI Supplier Finder searches a month |
| Business | $79.99/mo monthly; $69.99/mo or $839.88/year annually (14-day free trial) | Unlimited workflow management, MCP Server, API, Zapier, Make and n8n integrations, and 2 seats; includes a 14-day trial |
| Business Plus | $189.99/mo monthly; $159.99/mo or $1,919.88/year annually | Unlimited usage with fair use on some tools, MCP Server and 5 seats for larger teams |
| Agency | From $999.99/mo on an annual contract | Unlimited seats and workspaces, SSO, SLA and a customer success manager, booked through the sales team |
Checked November 2026.
What Seller Assistant does
- AI Supplier Finder
- Runs supplier searches, with 10 per month on Pro and 150 on Business, so heavy sourcing work needs the higher tiers and the allowance is the real limit for most users.
- Bulk Restriction Checker
- Pro allows 4,000 ASIN checks a month, which tells a seller which products need ungating approval before buying stock, saving costly purchases of items that cannot be listed.
- Repricer
- Pro reprices 3 active products and Business reprices 250, so it works as an add-on to sourcing work and not as a full repricer for large catalogs with many fast-moving offers.
- Purchase orders and landed cost
- From Business, purchase orders and warehouses are tracked with landed costs, adding basic purchasing and inventory records to a toolkit that starts as an extension.
- MCP Server and API
- Business and above add an MCP Server and an API, for connecting the product to AI assistants and other software, which the entry plan does not list at all.
How Seller Assistant handles your data
The pricing page of sellerassistant.app shows a Linen Art, LLC copyright line. The pages we opened did not state whether customer data trains AI models, how long data is retained, where it is hosted, or which certifications apply. The pricing FAQ and plan tables describe usage limits, not data practices. Because the toolkit includes an API and automation connections to Zapier, Make and n8n, a buyer should ask the vendor how credentials and exported data are handled.
Where Seller Assistant falls short in practice
- No refunds. The pricing FAQ states refunds are not offered, so test with the trial on Business before paying for an annual plan that cannot be reversed.
- Small entry allowances. Pro allows 3 repriced products, 1 tracked seller, 1 prep center integration and 3 extension installations, which is tight for anyone running more than a small operation.
- Google Sheets cap. Google Sheets connections are capped at 10 on every tier shown on the pricing page, even on higher plans, which can matter for teams that keep many sourcing sheets.
Works with
Alternatives to Seller Assistant
Seller Assistant: common questions
Does Seller Assistant offer refunds?
No. The pricing page FAQ states that refunds are not offered. The Business plan has a 14-day free trial with reduced allowances, which is the way to test the product before paying, especially if you plan to choose an annual plan that locks in a year of fees.
What is the cheapest Seller Assistant plan?
Pro is the entry plan at $29.99 per month billed monthly, or $24.99 per month and $299.99 per year billed annually. It includes two seats, 10,000 extension lookups a month and 10 AI Supplier Finder searches a month. Higher plans raise those allowances.
Does Seller Assistant have an API?
Yes, API access is listed on the Business plan and above, along with an MCP Server and Zapier, Make and n8n integrations. Pro does not list API access among its included features, so a seller who needs automation has to start at the $79.99 monthly tier.
How many products can the Seller Assistant repricer handle?
Pro allows 3 actively repriced products and Business allows 250. Business Plus is described as unlimited with fair use on some tools. Sellers with large catalogs and fast price moves should compare that against a dedicated repricer before relying on it.
How much does the Agency plan cost?
Agency starts at $999.99 per month on an annual contract and is booked through sales. It offers unlimited seats and workspaces, SSO, an SLA and a customer success manager, which suits agencies that serve several stores and need single sign-on for staff.