M
MediaSoftPro
Contact Request Demo →
Home/ Products/ Classified Ads/ PlacoClassifiedAds
📋 Classified Ads & Marketplace Platform · Enterprise Grade

Buy. Sell. Trade.
Any Product. Any Market.

PlacoClassifiedAds is a full-featured, multi-stack classified marketplace platform — built on 7-layer clean architecture with Claude AI integration. Launch a professional buy/sell platform in days, not months.

Request Live Demo View Pricing Explore Stacks
6
Tech Stacks
7
Architecture Layers
200+
Built-In Features
∞
Categories
🤖
Claude AI Ready
placoclassifiedads.com/listings
All Listings
Electronics
Vehicles
Real Estate
Fashion
Services
Jobs
Pets
💻
$899
🚗
$12,500
📱
$349
🛋️
$230
👗
$45
Product Overview

Your Complete Buy & Sell Marketplace, Production-Ready

PlacoClassifiedAds is a robust, cloud-ready classified marketplace built for the full spectrum of buying, selling, trading, and service listings. Whether you're launching a hyperlocal marketplace, a national classifieds portal, a niche vertical platform, or a white-label SaaS product for multiple clients — the platform delivers enterprise-grade infrastructure from day one.

Built on a strict 7-layer clean architecture and powered by Claude AI across all development stages, every component is designed for clean extensibility. The platform ships in six technology stacks, each maintaining identical feature parity and the same architecture pattern — giving you freedom to work in your preferred ecosystem without sacrificing quality or scope.

From dynamic ad submission forms with unlimited custom attributes, to AI-powered listing descriptions and spam detection — PlacoClassifiedAds handles the technical complexity so your team can focus on growing the marketplace.

📋
Unlimited Ad Categories & Attributes Build any vertical — electronics, vehicles, real estate, services, jobs, pets — with per-category dynamic attribute sets and no-code customization.
🔍
Elasticsearch-Powered Search Full-text search, geo-based filtering, faceted navigation, price ranges, and saved searches — all backed by an Elasticsearch-ready search layer.
💬
Real-Time Buyer–Seller Messaging In-platform messaging with thread management, email notification fallback, read receipts, and admin visibility tools for marketplace trust and safety.
🏢
SaaS Multi-Tenant Ready Run unlimited isolated classified portals from a single installation with per-tenant branding, category trees, settings, and payment configurations.
Supported Marketplace Verticals
💻
Electronics & Gadgets
Phones, Laptops, Cameras, Gaming, Audio
→
🚗
Vehicles & Automotive
Cars, Motorcycles, Trucks, Parts, Boats
→
🏠
Property & Real Estate
Rentals, Sales, Commercial, Vacation
→
👗
Fashion & Apparel
Clothing, Shoes, Accessories, Luxury
→
🛠️
Services & Freelance
Home Services, Tutoring, Events, Digital
→
💼
Jobs & Employment
Part-Time, Full-Time, Freelance, Remote
→
🐾
Pets & Animals
Adopt, Rehome, Accessories, Veterinary
→
🪑
Home & Garden
Furniture, Appliances, Tools, Decor
→
Platform Features

Everything a Modern Marketplace Needs

Full Feature List →
📝
Rich Ad Submission Form
Multi-step listing form with dynamic attribute sets per category, pricing options (fixed, negotiable, free, auction), media upload, location picker, and package selection — all in a clean, guided UX.
🗂️
Unlimited Category Tree
Hierarchical multi-level category management — build deep nested trees for any vertical. Each category carries its own attribute template, icon, SEO slug, and listing count display.
🔍
Advanced Search & Filters
Full-text search, geo-radius filtering, price range sliders, multi-select attribute filters, condition filters, seller type, listing age, and sortable results by relevance, date, or price.
💬
Buyer–Seller Messaging
Threaded in-platform messaging between buyers and sellers with notification emails, admin visibility, message flagging, spam filters, and a clean conversation inbox UI.
📸
Media & Image Management
Multi-image upload with real-time processing, auto-resize and WebP conversion, drag-and-drop reordering, video embed support, and CDN-backed delivery via S3 or Azure Blob.
⬆️
Featured & Promoted Listings
Configurable promotion tiers — homepage spotlight, category top placement, search priority boost, and urgent badges — with per-duration pricing, auto-expiry, and renewal nudges.
✅
Verified Sellers & Trust Signals
Seller verification badges, phone/email verification flows, identity confirmation levels, ratings and reviews, report system, and buyer feedback — building marketplace trust at scale.
💳
Payment & Monetization
Stripe and PayPal out of the box. Accept listing fees, subscription packages, featured upgrades, and credit purchases. Provider abstraction layer for adding local payment gateways.
🚨
Moderation & Safety Tools
Admin moderation queue for new listings, bulk approve/reject/flag workflows, keyword blacklists, auto-hold for suspicious content, IP blocking, and a full moderation audit trail.
🔔
Saved Searches & Alerts
Users save complex search criteria and receive instant or daily digest alerts when matching listings appear — driving re-engagement and repeat visits with zero marketing effort.
📊
Seller Analytics Dashboard
Per-listing view counts, inquiry rates, watchlist adds, featured performance ROI, and comparison benchmarks — giving sellers data to optimize their listings and pricing.
🌍
Geo & Location Features
Location-based listing search with city/state/country hierarchies, map view for local listings, distance sorting, and radius search — fully configurable for hyper-local or national scope.
🤝
Offer & Negotiation System
Buyers send price offers directly on listings. Sellers accept, reject, or counter. Full offer thread with history, expiry timers, and status tracking through the messaging system.
🔐
Enterprise Security
JWT + OAuth2 auth, RBAC permissions, rate limiting, input sanitization, CSRF protection, 2FA for admin accounts, audit logging, and GDPR-ready data export and deletion flows.
📱
Mobile-First Responsive UI
Fully responsive interface optimized for mobile discovery and listing submission. Progressive Web App (PWA) capabilities for offline browsing, push notifications, and home screen install.
System Architecture

7-Layer Clean Architecture

PlacoClassifiedAds follows the same rigorous 7-layer clean architecture applied across all MediaSoftPro products — ensuring complete separation of concerns, full testability, and architectural longevity as your marketplace scales.

01
SharedKernel
Base entities, value objects, domain exceptions, guard clauses, result pattern, and shared primitives across all layers.
02
Domain Layer
Listing aggregates, Category entities, Offer domain model, domain events (ListingPosted, OfferMade, ListingExpired) and business rules.
03
Infrastructure
EF Core / Dapper repositories, media storage adapters (S3/Azure), messaging provider, payment gateway clients, and background services.
04
Application Layer
CQRS commands and queries, MediatR pipeline behaviors, FluentValidation, AutoMapper, and use case orchestration for all marketplace workflows.
05
Search Layer
Elasticsearch / Meilisearch integration, geo-spatial indexing, faceted filters, full-text ranking, and listing index sync pipelines.
06
API Layer
Versioned RESTful endpoints, JWT middleware, rate limiting, OpenAPI documentation, webhook support, and problem details RFC 7807.
07
Web / UI Layer
Next.js 15 / Angular 21 frontend with SSR/SSG for SEO, marketplace UI components, admin dashboard shell, and theme engine.
PlacoClassifiedAds.sln
07
PlacoAds.Web→Next.js 15 · Angular 21 · SSR
06
PlacoAds.API→REST · JWT · OpenAPI 3.1
05
PlacoAds.Search→Elastic · Geo · Facets
04
PlacoAds.Application→CQRS · MediatR · DTOs
03
PlacoAds.Infrastructure→EF Core · S3 · Redis
02
PlacoAds.Domain→Listings · Categories · Offers
01
PlacoAds.SharedKernel→ValueObjects · Guards · Result

# Domain Events
ListingPosted OfferMade ListingExpired MessageSent SellerVerified ListingFeatured
Multi-Stack

Available in 6 Technology Stacks

Every stack ships with identical feature parity and the same 7-layer clean architecture — implemented idiomatically per technology.

🔷
ASP.NET / .NET 10
C# 14 · Angular 21 · SQL Server
Minimal API + Controller hybrid
EF Core 10 with compiled queries
Angular 21 SSR with Angular Universal
SignalR for real-time messaging
Flagship stack — most complete
⚡
Axum / Next.js
Rust · Axum 0.7 · Next.js 15 · PostgreSQL
Axum async handlers with Tower middleware
SQLx compile-time query validation
Tokio runtime for max concurrency
Next.js 15 App Router + RSC
Best for extreme throughput needs
🟢
NestJS / Next.js
TypeScript · NestJS 10 · Next.js 15
NestJS modules with DI and decorators
Prisma ORM with full TS types
BullMQ for background job processing
Socket.io for real-time chat
TypeScript-first teams
🔴
Laravel / Vue
PHP 8.3 · Laravel 11 · Inertia · Vue 3
Laravel Inertia SPA-like routing
Eloquent ORM with advanced scopes
Vue 3 Composition API + Pinia
Laravel Horizon queue monitoring
Ideal for PHP ecosystem teams
🐹
Golang / Next.js
Go 1.23 · Gin · Next.js 15 · PostgreSQL
Gin framework with middleware chains
GORM / pgx native driver
Goroutines for concurrent operations
Single binary production deployment
Minimal memory footprint
🐍
Python / Django
Python 3.13 · Django 5 · DRF · Next.js 15
Django REST Framework ViewSets
Celery + Redis for async tasks
Django Channels for WebSockets
Next.js frontend with API integration
Best for AI/ML-heavy customizations
Platform Modules

Deep Module Library

Every module follows the 7-layer pattern and can be independently extended, replaced, or toggled per workspace deployment.

📊 Admin Dashboard
Real-time stats, listing activity feed, moderation queue counter, seller performance, revenue overview, and marketplace health indicators — all in a configurable widget dashboard.
Preview →
🗂️ Category Manager
Multi-level category builder with per-category attribute templates, icons, banner images, SEO settings, sorting order, and active/inactive toggle — all manageable from the admin panel.
Preview →
🎨 Theme & Layout Engine
Unlimited themes with homepage builder, listing card templates, category page layouts, and component-level customization — no code required for visual customization.
Preview →
📍 Locations Manager
Country → State → City hierarchy with geo-coordinates, SimpleMap data import support, per-location display settings, and listing count roll-ups.
Preview →
📬 Email Template Engine
All platform email events covered — listing live, message received, offer notification, listing expiry, account confirmation — with live preview and variable injection.
Preview →
⏰ Cron Jobs Manager
Automated tasks for listing expiry reminders, featured upgrade renewals, seller performance digest emails, index rebuilds, and cleanup routines.
Preview →
📝 Content Editor
Modular CMS for all site content — landing pages, category landing pages, help center articles, legal pages, and blog posts — editable from the admin panel.
Preview →
📈 Report Builder
Multi-page report designer with listing volume trends, revenue analytics, category performance, seller metrics, and scheduled delivery to admin stakeholders.
Preview →
📋 Manage Listings
Full admin and seller-level listing management with bulk status actions (approve, reject, feature, expire), data export, advanced filters, and inline editing tools.
Preview →
✍️ Post Ad
Guided multi-step ad submission with category selection, dynamic attribute form, pricing options (fixed, negotiable, free), media upload, location picker, and package selection.
Preview →
⚙️ Dynamic Attributes
No-code attribute builder per category — text, number, select, multi-select, checkbox, color, and range field types. Each field is searchable and filterable.
Preview →
🔍 Search & Filters
Admin-configurable facets, filter presets per category, geo-radius search, saved search management, and Elasticsearch-backed full-text search with ranking tuning.
Preview →
🚨 Moderation Queue
New listing moderation with approve/reject/hold/flag actions, violation reason tracking, seller notification on status change, and audit log of all moderator actions.
Preview →
🌱 Data Seeder
Bulk test data generator for listings, sellers, and categories — configurable by vertical, price band, location, and media. Essential for QA, demos, and development.
Preview →
💬 Buyer–Seller Chat
Threaded messaging linked to specific listings. Real-time delivery via WebSockets with fallback to email notification. Read receipts, message preview, and conversation search.
Preview →
🤝 Offer System
Price offer submission from listing pages — sellers accept, reject, or counter. Full offer history thread with expiry timers and status indicators visible to both parties.
Preview →
🚩 Spam & Safety Filters
Keyword blacklist on messages, rate-limit per user, auto-hold suspicious content, link-scrubbing option, and one-click block/report from any conversation thread.
Preview →
📩 Admin Message View
Admins can view flagged conversations for safety review, access conversation history per listing, and resolve disputes — with full audit trail of admin read access.
Preview →
👥 User Management
Full user administration with advanced filters, bulk status management, profile editing, listing history, message history, and export to CSV/XLSX.
Preview →
🔐 Roles & Permissions
Resource-based RBAC with unlimited custom roles. Granular operation-level permissions per module — differentiate admin, moderator, seller, and buyer access precisely.
Preview →
✅ Seller Verification
Phone verification, email confirmation, ID document upload, and manual admin verification with badge tier system — driving buyer trust in marketplace sellers.
Preview →
⭐ Ratings & Reviews
Post-transaction seller ratings with written reviews, aggregate score display, review moderation, response capability for sellers, and review history on profiles.
Preview →
🏆 Gamification
Badges, achievement levels, activity points, and credits — auto-awarded on any platform event. Drives seller listing quality and buyer engagement.
Preview →
🔒 Authentication
JWT + refresh tokens, OAuth2 social login (Google, Facebook), 2FA via TOTP/SMS, brute-force protection, and remember-me sessions with secure cookie management.
Preview →
🏗️ Multi-Workspace Engine
Full SaaS multi-tenant architecture — each workspace gets isolated data, custom domain, independent category tree, theme, feature toggles, and its own admin panel.
Preview →
⚙️ Workspace Settings
Per-tenant configuration — branding, listing approval mode (auto vs manual), contact details, SEO defaults, integration keys, and payment gateway settings.
Preview →
📋 Workspace Templates
Pre-configured workspace templates per vertical — general classifieds, automotive, real estate, electronics — with one-click provisioning for rapid tenant onboarding.
Preview →
📦 Batch Submitter
Bulk data import for listings and categories from CSV/JSON — with validation, duplicate detection, field mapping UI, and dry-run preview before commit.
Preview →
🔧 Developer Toolkit
Isolated component sandbox for building and testing new modules before production deployment — with prop inspector, hot reload, and test data injection.
Preview →
🗂️ Multi-Channel Categories
Unlimited category depth, per-workspace or global, with per-category attribute sets, icons, banner images, SEO slugs, and live listing count display.
Preview →
📦 Listing Packages
Subscription tiers with configurable listing quotas, media limits, featured allowances, and duration. Assign to user accounts with automatic enforcement on listing submission.
Preview →
⬆️ Featured Promotions
Listing promotion tiers — homepage spotlight, category top, search priority, urgent badge — with per-duration pricing, auto-expiry, and renewal prompt notifications.
Preview →
💰 Credit System
Virtual credits for platform actions — purchase credits, spend on promotions, unlock contact details, or access premium features. Configurable credit value per action.
Preview →
💳 Payment Integration
Stripe and PayPal out of the box, with a provider abstraction layer for additional gateways. Handles subscriptions, one-time purchases, refunds, and invoice generation.
Preview →
Claude AI Integration

AI-Powered Marketplace Intelligence

PlacoClassifiedAds ships with a fully documented Claude AI compatibility layer. Connect your Anthropic API key and unlock marketplace AI features across listing creation, moderation, search, and seller assistance.

01
AI Listing Description Generator
Sellers provide basic attributes — Claude generates compelling, keyword-rich descriptions tailored to the category, saving time and dramatically improving listing quality.
02
Smart Spam & Fraud Detection
Claude analyzes listing content and messaging patterns to flag suspicious activity, scam language, and policy violations — reducing moderation workload significantly.
03
Natural Language Search
"Find me a used iPhone under $400 in good condition near me" — Claude parses the intent into structured search parameters for the Elasticsearch layer automatically.
04
AI-Powered Pricing Suggestions
Based on comparable listings in the same category and location, Claude suggests competitive price ranges to help sellers price accurately and sell faster.
ListingAIService.cs
// PlacoClassifiedAds — Claude AI Service

public class ListingAIService
{
private readonly IClaudeClient _claude;

// Generate ad description from attributes
public async Task<string>
GenerateDescription(ListingDto ad)
{
var prompt = $"""
Write a compelling {ad.Category} listing.
Title: {ad.Title}
Condition: {ad.Condition}
Price: {ad.Price:C}, Location: {ad.City}
Attributes: {ad.AttributesSummary}
""";

return await _claude
.CompleteAsync(prompt);
}

// Detect spam / policy violations
public async Task<ModerationResult>
AnalyzeListing(ListingDto ad)
{
// Returns: safe | suspicious | violation
return await _claude
.ClassifyAsync<ModerationResult>(ad);
}
}
Technical Specification

Platform Technical Details

Specifications for the flagship .NET 10 stack. All other stacks maintain identical architecture with stack-native implementations.

Core Framework (.NET Stack)
Runtime.NET 10C# 14
FrontendAngular 21SSRNext.js 15
API StyleRESTVersionedOpenAPI 3.1
AuthJWTOAuth22FA
RealtimeSignalRWebSockets
ORMEF Core 10Dapper
Data & Storage
DatabaseSQL ServerPostgreSQL
CachingRedisOutput Cache
SearchElasticsearch 8Meilisearch
File StorageAWS S3Azure Blob
QueueHangfireRabbitMQ
MapsGoogle MapsMapbox
Architecture Patterns
PatternClean ArchDDDCQRS
MediatorMediatR 12Pipeline Behaviors
ValidationFluentValidationGuard Clauses
MappingAutoMapper
LoggingSerilogSeq
TestingxUnitMoqTestContainers
Infrastructure & Security
ContainersDockerDocker Compose
CI/CDGitHub ActionsAzure DevOps
CloudAWSAzureGCP
SecurityHTTPS/HSTSCORSRate Limiting
PaymentStripePayPal
MonitoringHealth ChecksOpenTelemetry
Pricing

One-Time License. Lifetime Ownership.

No recurring SaaS fees. Pay once, own the source code forever. All plans include documentation and 12 months of free updates.

Starter
$249
one-time · single project license
Perfect for developers building a single classified platform or evaluating the codebase for a client project.
✓ Full source code (1 stack of choice)
✓ 7-layer clean architecture
✓ All core modules included
✓ Claude AI integration hooks
✓ 12 months free updates
✓ Setup documentation
✗ Multi-stack access
✗ Priority support
Get Starter
Most Popular
Professional
$599
one-time · unlimited projects
Best for agencies and freelancers building multiple classified platforms or launching a multi-tenant SaaS product.
✓ Full source code — all 6 stacks
✓ Unlimited project deployments
✓ All modules + SaaS workspace engine
✓ Claude AI integration + docs
✓ 12 months priority support
✓ 24 months free updates
✓ 2× video walkthrough sessions
Get Professional
Enterprise
Custom
custom quote · white-label rights
For enterprises needing white-label rights, custom feature development, dedicated onboarding, or SLA-backed support.
✓ Everything in Professional
✓ White-label & resell rights
✓ Custom feature development
✓ Dedicated Claude AI setup
✓ SLA-backed support
✓ Architecture consulting calls
✓ Deployment assistance
Contact for Quote
🔨

Need Custom Features or Marketplace Customization?

Our verified Upwork agency handles custom module development, new category verticals, third-party integrations, UI redesigns, and full deployment setup. Milestone-based contracts with full payment protection for both parties.

Top Rated Hire on Upwork →
FAQ

Frequently Asked Questions

Can I build any type of classified marketplace with this?
Yes — the platform is designed to be vertical-agnostic. The dynamic attribute system, category management, and customizable listing templates mean you can build electronics, automotive, real estate, services, pets, or any niche marketplace without modifying core code.
Is there a multi-vendor or multi-seller model?
The platform supports unlimited registered sellers with individual dashboards, listing quotas, subscription packages, and verification tiers. The SaaS multi-workspace engine further allows running completely separate marketplace brands from one installation.
How does the moderation system work?
New listings can be set to auto-approve or require manual approval per workspace. The moderation queue provides bulk approve/reject tools, violation reason tracking, seller notifications, and an audit trail. Claude AI can pre-screen listings before they enter the queue.
Can buyers and sellers message anonymously?
Yes — the messaging system keeps contact details hidden until a seller chooses to reveal them. Phone and email are masked by default, with configurable reveal rules per subscription tier or contact-credit spend.
Which stack should I choose for a high-traffic marketplace?
For extreme throughput, the Axum (Rust) or Golang stacks are recommended. For a balanced combination of performance and developer productivity, NestJS (TypeScript) is excellent. The .NET 10 stack is the most feature-complete and best for teams with .NET experience.
Does it include SEO features for listing pages?
Yes — listing pages support customizable meta titles, descriptions, Open Graph tags, and structured data (Schema.org Product markup). SSR/SSG ensures listing pages are fully crawlable by search engines.
Can I add my own payment gateway?
Yes — all payment logic goes through a provider abstraction layer. Adding a new gateway requires implementing the IPaymentProvider interface and registering it in the DI container. No changes to business logic are needed.
How does Upwork customization work with the license?
Your license covers the source code — any customization work done through our Upwork agency results in code you own and can integrate freely into your licensed copy. Upwork provides milestone protection and clear contract terms for both parties.

Launch Your Classified Marketplace Today

Get a production-ready, AI-powered classified ads platform with full source code ownership — in your technology stack of choice. No recurring fees.

Request Live Demo View Pricing Browse All Products