PurgoMalum Pricing: Free API for Content Filtering (2026)

Pricing overview

PurgoMalum offers its profanity filtering API entirely free of charge. This model distinguishes it from most commercial content moderation services, as it removes any associated costs for usage, API keys, or tiered plans. The service is designed for simplicity, allowing developers to integrate basic profanity detection and replacement capabilities into applications without the need for financial commitments or formal registration.

The core functionality of the PurgoMalum API involves processing text strings to identify and filter out undesirable words. Developers can specify various filtering options, such as replacing profanity with asterisks, removing it entirely, or specifying custom replacement characters. This straightforward approach supports rapid deployment for projects where budget constraints are a primary concern or where the filtering requirements are not extensive enough to warrant a paid service.

There are no hidden fees, rate limits on the number of requests, or charges based on data volume. This makes PurgoMalum a transparent option for developers seeking a no-cost solution for content validation. The official PurgoMalum API documentation provides full details on how to get started without any financial transaction.

Plans and tiers

PurgoMalum does not operate on a tiered pricing model or offer different plans. Instead, it provides a single, universally accessible service without segmentation into 'basic,' 'premium,' or 'enterprise' levels. All available API features, including profanity detection, word replacement, and custom word list filtering, are accessible to all users without any differentiation based on payment or subscription.

This absence of plans and tiers signifies that the functionality offered is uniform for every user, from individual developers working on personal projects to organizations integrating the service into small-scale commercial applications. There are no distinctions in terms of performance, feature set, or support that would typically be associated with paid tiers in other API services. The service remains consistent in its provision of content filtering functionalities for all users.

The simplicity of a single, free offering simplifies the decision-making process for potential users who do not need to evaluate different feature sets or pricing structures. This model prioritizes accessibility over advanced features or dedicated support often found in commercial alternatives like WebPurify's tiered plans or Sightengine's usage-based pricing. The focus is on providing a foundational profanity filter without commercial overhead.

Free tier and limits

PurgoMalum's entire offering functions as a free tier, providing unlimited requests without requiring an API key. This means there are no conventional limits on the volume of API calls or the amount of text processed, a common restriction found in many commercial API free tiers. Users can send as many requests as needed for their applications, subject only to general internet and service availability. The absence of an API key streamlines the integration process, as developers do not need to register an account or manage authentication credentials.

While there are no explicit usage limits, users are implicitly expected to adhere to reasonable use principles to ensure service availability for all. Excessive or abusive request patterns may be subject to intervention, though such instances are not commonly reported due to the nature of the service and its intended use cases. The PurgoMalum API documentation confirms the lack of authentication and explicit rate limits, inviting developers to integrate directly.

The service's design for basic filtering implies that while it can handle substantial request volumes, it might not offer the ultra-low latency or dedicated infrastructure guarantees that come with paid enterprise solutions. For most small to medium-sized applications requiring straightforward profanity removal, the free tier's capabilities are typically sufficient and reliable enough for routine operations. This model allows developers to focus purely on integration and functionality rather than cost management or complex quota monitoring.

Real-world cost examples

Given PurgoMalum's free pricing model, all real-world cost examples uniformly demonstrate a total cost of zero. This applies regardless of the scale of usage, making it distinct from any usage-based or subscription offerings. Here are several scenarios illustrating this:

• Educational Project: A student developing an interactive learning platform needs to filter user comments for profanity. Using PurgoMalum, they integrate the API to process thousands of comments daily during their development and testing phases. The cost incurred for this extensive usage remains $0.
• Small Forum Application: A hobbyist launches a small online forum. To maintain a clean environment, they implement PurgoMalum to filter all user-generated posts before display. With an average of 5,000 posts per day, the monthly API cost for content moderation is $0.
• Personal Blog Comment System: A blogger adds a comment section to their website and wants to automatically moderate submissions. They use PurgoMalum to check and filter every comment, which could amount to hundreds of requests per day. The cost for this content filtering solution each month is $0.
• Prototype for a Startup: A startup team is building a prototype for a new social media application and needs a quick, free solution for profanity filtering during the initial development and user testing phases. They integrate PurgoMalum to handle all user-generated content. For several months of continuous prototyping and testing, the API cost remains $0. This allows them to allocate their limited budget to other development areas.
• Internal Tool for Content Review: A small non-profit organization creates an internal tool for reviewing user submissions on their platform. They use PurgoMalum to pre-scan content for profanity, streamlining the review process. Even with regular daily use by multiple staff members, the operational cost for the filtering API is $0.

How the pricing compares

PurgoMalum's completely free pricing model stands in contrast to most commercial content moderation APIs, which typically employ subscription-based, usage-based, or tiered pricing structures. This fundamental difference makes PurgoMalum a unique offering primarily for developers and organizations with limited budgets or specific project requirements.

• WebPurify: WebPurify's pricing model primarily consists of monthly subscriptions based on the number of words processed, with tiers starting from a certain number of words per month. They also offer enterprise plans with custom pricing. While WebPurify provides more advanced features like human moderation and image/video filtering, these come at a recurring cost. PurgoMalum offers the core profanity filtering functionality without any associated fees, making it more suitable for projects where basic text filtering is sufficient and cost is a primary constraint.
• Sightengine: Sightengine offers a more comprehensive suite of AI moderation tools, including image, video, and text analysis. Their pricing is typically usage-based, with different costs per detection or scan, and they provide a free tier with limited monthly operations. For projects requiring multimodal content moderation, Sightengine is a powerful but paid option. PurgoMalum remains entirely free but focuses solely on text-based profanity filtering, without visual or audio moderation capabilities.
• Moderate Content: Moderate Content also uses a credit-based system, where users purchase credits that are consumed per API call, with different rates for various detection types (e.g., adult content, profanity, text analysis). They offer a free trial with a certain number of credits. This model requires users to manage and purchase credits as their usage grows, whereas PurgoMalum eliminates this overhead entirely.
• Cloud Provider APIs (e.g., Google Cloud Natural Language API): Services like the Google Cloud Natural Language API offer sentiment analysis, entity recognition, and content classification, which can be adapted for content moderation. These services operate on a pay-as-you-go model, charging per unit of text processed. While they offer advanced linguistic analysis, their cost scales with usage, making them potentially expensive for high-volume content filtering, especially compared to PurgoMalum's zero-cost approach.

In summary, PurgoMalum's free model provides a significant financial advantage for projects requiring straightforward profanity filtering. While commercial alternatives offer broader feature sets, higher accuracy, or dedicated support, they come with recurring costs or usage-based fees. PurgoMalum is positioned as a highly accessible and cost-effective entry point for basic content validation, sacrificing advanced capabilities for complete financial freedom and ease of integration.