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msMarketSDK

[ marketsdk ]

Add a marketplace to your SaaS in minutes, not quarters.

MarketSDK is a headless API for high-trust peer-to-peer marketplaces. Let your users sell templates, plugins, and extensions to each other, without building payments, trust, or moderation yourself.

start freeread the docs

free sandbox, no card · go live instantly · no percentage of your sales

POST /v1/listingsrequest
Authorization: Bearer msk_test_...

{
  "seller": "sel_8Kq2",
  "title": "Invoice template pack",
  "price": { "amount": 1900, "currency": "usd" },
  "category": "templates"
}
201 Createdresponse
{
  "id": "lst_3Fd9",
  "state": "draft",
  "seller": "sel_8Kq2",
  "created_at": "2026-11-02T09:14:07Z"
}

// who it is for

Built for products that already have users.

You run a SaaS. Your users make things inside it: templates, workflows, themes, integrations. Some of them would pay for what others have built. A marketplace turns that into revenue and retention, but building one is a year of work you did not sign up for.

  • template storesworkflows, docs, boards
  • extension storesadd-ons for your app
  • theme and plugin storesskins, blocks, modules
  • niche goods marketplacesphysical items, verified sellers

[ the deal ]

Three things we will not change.

  1. 01

    No percentage of your sales.

    You pay a flat subscription. Your platform fee is yours to set and yours to keep. We never take a cut.

  2. 02

    Your Stripe account, not ours.

    Payments run on your own Stripe account. Money moves from your buyers to your sellers and to you. It never passes through us.

  3. 03

    Developers first.

    Built for the person doing the integration: a sandbox with no time limit, plain REST, and live keys the same minute you pick a plan.

// what is included

Everything a marketplace needs. Nothing it does not.

  • 01

    Listings

    Drafts, publishing, expiry, and structured attributes per category.

  • 02

    Sellers

    Onboarding, verification, storefronts, payout accounts.

  • 03

    Checkout

    Card payments through Stripe, fee splits, refunds.

  • 04

    Trust

    Identity verification, reputation, disputes.

  • 05

    Search

    Filter, sort, and full-text search across your catalogue.

  • 06

    Reviews

    Two-sided ratings, tied to completed orders.

  • 07

    Moderation

    Flags, review queues, takedowns, blocked keywords.

  • 08

    Webhooks

    Every state change, signed and delivered to your backend.

see how it works

// proof

RCFeed runs on it.

RCFeed's marketplace, where hobbyists and RC shops trade cars, planes, boats, and parts, is built on MarketSDK. It is live and has real users. That is the stack you get.

visit rcfeed (opens in a new tab)

[ pricing ]

Flat pricing. Billed on active sellers.

A seller counts only in a month when they have something published. Test mode is always free.

  • sandboxFreetest mode only
  • launch$149per month · 50 active sellers
  • growth$499per month · 500 active sellers
  • scaleCustomunlimited active sellers
see full pricing

Start in the sandbox.

Create a workspace, copy a test key, and make your first call. No card, no time limit.

start free