CS2 marketplace development
Catalogue, pricing, inventory, deposit and trading workflows plus the operational tooling a CS2 marketplace needs to run day to day.
CS2 developer agency · Since 2016
CS2 developers for marketplaces, trading tools and Steam products
We are CS2 developers first: we trade, price and ship on Steam every day — and we run Steamwebapi, the data platform behind thousands of CS2 products. The same team works as Steam, Rust, Dota 2 and TF2 developers. Hire the people who already operate the infrastructure your product needs.
Since 2016
building on Steam
9,886
developers on our platform
13
marketplaces integrated
GET /steam/api/inventory
[
{
"markethashname": "AK-47 | Redline (Field-Tested)",
"pricelatest": 27.42,
"sold24h": 1483,
"float": 0.2317,
"tradable": 1
}
]
200 OK
142 ms
our own production API
CS2 products built on our platform or by our developers
What our CS2 developers build
CS2 development services — products, not prototypes
From a first marketplace MVP to trading automation at scale: every service runs on the same production Steam data platform we operate ourselves.
Steam application development
Dashboards, community tools, data products and business platforms built on public Steam data by experienced Steam developers.
Trading automation & bots
Bot fleets, trade preflight checks, Steam Guard automation and confirmation pipelines.
Pricing & analytics tools
Price indices, arbitrage detection, portfolio valuation and reporting on top of normalized market data.
Rust, Dota 2 and TF2 products
Game-specific integrations for Rust, Dota 2 and Team Fortress 2, built on the same production foundation as our CS2 development work.
Integration rescue
Take over an existing Steam integration that is rate-limited, unmaintained or scraping undocumented pages.
Our ecosystem
An ecosystem of CS2 and Steam products — our own
We do not just consult on CS2 development. We build and operate our own products, and every one of them runs on the same platform your project would. Check them yourself — they are live.
2016
Building CS2 & Steam products since
9,886
Developers using our Steam API
48.0M
Active listings tracked by our platform
13
Marketplace integrations in production
Steamwebapi
The Steam data API this site documents — inventory, prices, floats and trading data in production since 2018.
steamwebapi.com ↗
Skinpock
CS2 inventory value tracker used by traders to watch portfolios and price changes.
skinpock.com ↗
SteamAuth
Browser extension for Steam login and trade confirmation workflows.
steamauth.app ↗
SteamHelper
Companion tooling for day-to-day Steam trading operations.
steamhelper.app ↗
Skinrepo
CS2 skin database with market data from our own Price API.
skinrepo.com ↗
Built by people who trade, price and ship on Steam every single day.
Why CS2 developers and founders work with us
Most agencies have to learn the Steam ecosystem on your budget. Our CS2 developers operate a production Steam data platform every day — inventory, prices, floats, trading — so the integration layer of your product is not a discovery project.
We operate the platform
The Steam data layer is not outsourced or newly learned — we run it in production.
No scraping guesswork
Documented endpoints, normalized JSON and known rate limits from day one.
Cost-effective delivery
A small senior team, scoped work, no discovery phase spent on Steam basics.
Long-term maintenance
Endpoints and integrations are maintained as upstream Steam services change.
How a CS2 development project runs
Short path from first message to running product — most projects start with a live chat conversation the same day.
Send requirements
Describe the product, the data you need, expected volume and your target date — live chat, Discord or email.
Scope and proposal
We confirm feasibility and agree scope, timing and commercial terms.
Build and review
Delivery in reviewable increments against the agreed scope.
Operate and maintain
Ongoing support, monitoring and endpoint maintenance under contract.
Domain specialists
CS2, Steam, Rust, Dota 2 and TF2 developers in one team.
Your project starts with product requirements, not weeks of explaining Steam IDs, inventories, item variants, market sources and data freshness.
CS2 developer
CS2 developers for skin catalogues, price products, trading tools, float and pattern data, analytics and marketplace workflows.
Explore the CS2 APISteam developer
Steam developers for account, profile, inventory and trade integrations, community platforms and Steam data products across every supported game.
Explore the Steam APIRust developer
Rust developers for web applications, skin market data products and inventory integrations built around Rust items and Steam accounts.
Explore the Rust APIDota 2 developer
Dota 2 developers for cosmetic item catalogues, market price products, inventory tools and community applications.
Explore the Dota 2 APITF2 developer
TF2 developers for backpack, item, pricing and community applications designed around the Team Fortress 2 economy.
Explore the TF2 APICS2 marketplace developer
End-to-end marketplace product work or focused development for inventory, pricing, listings and operations.
Discuss your marketplaceFAQ
Before you send the brief
If your requirement is unusual, send it anyway. Feasibility and scope are confirmed before any commercial commitment.
What can your CS2 developers build?
We build production web applications and platforms around the CS2 ecosystem, including marketplaces, inventory valuation, price comparison, portfolio tools, trading workflows, analytics dashboards and custom Steam data integrations.
Can you provide a CS2 marketplace developer?
Yes. A CS2 marketplace engagement can cover product architecture, catalogue and search, inventory workflows, pricing, marketplace integrations, trading operations, dashboards and the APIs required by the platform.
Do you also work as Steam, Rust, Dota 2 and TF2 developers?
Yes, for legitimate web, platform and data products around Steam accounts and inventories, Rust, Dota 2, Team Fortress 2 and other supported Steam games. Game-client, server-plugin or mod work must be evaluated separately and is only offered when the requested scope fits our capabilities.
Can your developers join an existing product team?
Yes. We can deliver a complete scoped product, own a defined subsystem, or work with an existing engineering team on Steam data, backend, frontend and integration responsibilities.
How is custom CS2 development priced?
Pricing depends on scope, integrations, delivery responsibilities, expected load and maintenance requirements. We review the brief first and provide a written proposal before development begins.
Is Steamwebapi affiliated with Valve?
No. Steamwebapi is an independent company and is not affiliated with Valve or Steam. Every project must be technically feasible and suitable for a legitimate production application.
Direct support
Cannot find the right endpoint, data source or plan?
Tell the Steamwebapi team what you are building. A short sentence is enough — we will help you identify the right product and the simplest way to integrate it.
S
Steamwebapi team
Product and integration support
Hi — what are you building, and what could you not find? Send us the question exactly as you have it.