Software Alternatives, Accelerators & Startups

Numverify VS APIMaster

Compare Numverify VS APIMaster and see what are their differences

Note: These products don't have any matching categories. If you think this is a mistake, please edit the details of one of the products and suggest appropriate categories.

Numverify logo Numverify

Global phone number validation and lookup API

APIMaster logo APIMaster

AI API marketplace: buy OpenAI, Claude & DeepSeek keys at up to 90% off. Fingerprint-verified providers โ€” no fake models.
  • Numverify Landing page
    Landing page //
    2023-05-09

NumVerify offers an extensive yet straightforward RESTful JSON API for a total of 232 countries around the world for domestic and international mobile number validation and information search. It is one of the reasonably priced API numbers. Additionally, it offers sophisticated capabilities like location lookup, carrier & line type detection, and intelligent phone number validation utilizing the most recent international numbering plans. For the best phone verification API, go to www.numverify.com.

  • APIMaster API Key market
    API Key market //
    2026-06-15

APIMaster is an AI API marketplace offering OpenAI, Claude, and DeepSeek API keys at up to 90% off official pricing. One API key gives you access to all major models with OpenAI-compatible endpoints โ€” plug directly into Cursor, Claude Code, or any SDK.

Every provider is fingerprint-verified weekly to ensure you're getting the real model. Supports PayPal, USDT, and ePay. No subscription, pay-as-you-go from $1.

Numverify features and specs

  • Accurate Validation
    Numverify provides accurate validation of phone numbers, detecting formats, types, and carrier information, which helps ensure the phone numbers are real and formatted correctly.
  • Worldwide Coverage
    The service supports phone number validation in over 230 countries, making it highly versatile for global applications.
  • Easy Integration
    With a straightforward API, Numverify is easy to integrate into various systems and platforms, allowing for efficient phone number validation.
  • Real-Time Verification
    Numverify offers real-time phone number verification, which ensures that all data retrieved is up-to-date and relevant.
  • Fraud Prevention
    By validating phone numbers, Numverify assists in reducing fraud by ensuring that the numbers are legitimate, potentially saving businesses from scams.

Possible disadvantages of Numverify

  • Cost
    Although there is a free tier, accessing advanced features and higher usage requires a paid subscription, which may not be affordable for smaller businesses.
  • Rate Limiting
    The API may have rate limiting restrictions, especially on the free tier, which could affect applications requiring high-frequency validations.
  • Limited Free Tier
    The free tier offers limited features and a small number of monthly requests, which might not be sufficient for all users' needs.
  • Dependency on Service
    Relying on an external service like Numverify can introduce a dependency that might become an issue in case of downtime or service changes.
  • Privacy Concerns
    Users might have privacy concerns about sharing phone numbers with an external service for validation, requiring careful consideration of data handling and storage practices.

APIMaster features and specs

  • Fingerprint Verification
    Trained on massive samples to identify the real model behind any API endpoint โ€” not by asking questions the proxy can fake, but by analyzing deep behavioral signals
  • API Key Tester
    Free tool to test OpenAI, Claude, Gemini & DeepSeek API keys โ€” verify connectivity and key validity instantly
  • Provider Leaderboard
    Real-time rankings by model authenticity โ€” see which providers pass or fail fingerprint checks
  • Smart Routing
    Auto-routes every request to the cheapest fingerprint-verified channel, with auto-failover across providers

Analysis of APIMaster

Overall verdict

  • APIMaster.ai appears to be a capable API management and development platform, but as with any tool, its suitability depends on your specific needs and workflow. Independent verification of its features and reliability is recommended before committing.

Why this product is good

  • Streamlines API design, testing, and documentation in a unified platform
  • May offer AI-assisted features to accelerate development and reduce manual effort
  • Potential to improve collaboration among development teams working on APIs
  • Could reduce time-to-market by automating repetitive API tasks

Recommended for

  • Developers and teams building or managing multiple APIs
  • Startups looking to speed up API development with AI assistance
  • Organizations needing centralized API documentation and testing
  • Backend engineers seeking to automate API workflows

Numverify videos

How to Lookup Phone Number | Free Phone Number Verification API | numverify

APIMaster videos

No APIMaster videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to Numverify and APIMaster)
Phone Number Validation
100 100%
0% 0
AI
0 0%
100% 100
Phone Number Verification
Productivity
0 0%
100% 100

Questions & Answers

As answered by people managing Numverify and APIMaster.

Which are the primary technologies used for building your product?

APIMaster's answer:

Next.js, Go, Python (Flask), PostgreSQL

What makes your product unique?

APIMaster's answer:

Fingerprint verification โ€” we test every provider weekly using behavioral fingerprinting to detect model substitution. You can see which providers serve real models vs fake substitutes on our public leaderboard. No other API marketplace does this.

Why should a person choose your product over its competitors?

APIMaster's answer:

APIMaster is the only marketplace that verifies what model you're actually getting. Competitors like OpenRouter route traffic without verification โ€” you might pay for Claude Opus but receive a cheaper model. APIMaster detects this and only recommends verified providers. Plus, prices are up to 90% off official rates โ€” you get both cost savings and model authenticity guaranteed.

How would you describe the primary audience of your product?

APIMaster's answer:

Developers who use OpenAI, Claude, or DeepSeek APIs and want to reduce costs without sacrificing model quality. Especially useful for developers in markets where direct API access is expensive or restricted.

What's the story behind your product?

APIMaster's answer:

Built after discovering that many cheap API resellers secretly substitute expensive models with cheaper ones. We built fingerprint detection first, then a marketplace that only lists providers that pass verification.

User comments

Share your experience with using Numverify and APIMaster. For example, how are they different and which one is better?
Log in or Post with

Social recommendations and mentions

Based on our record, Numverify seems to be more popular. It has been mentiond 11 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Numverify mentions (11)

  • Top 5 Phone Number Validation ๐Ÿ“ž APIs for Developers: Features, Integration, and Pricing Guide โšก
    Overview: Numverify provides global phone number validation with extensive coverage of countries and carrier detection. Its real-time validation ensures businesses only process legitimate numbers. - Source: dev.to / over 1 year ago
  • Optimizing Call Routing Efficiency with Phone Number Carrier Lookup APIs
    Phone number carrier lookup APIs are indispensable tools for SaaS platforms, telecom providers, and application developers aiming to optimize call routing and security. By integrating these APIs, businesses can improve customer communication, prevent fraud, and reduce costs effectively. To explore reliable lookup solutions, visit Numverify today. - Source: dev.to / over 1 year ago
  • free-for.dev
    Numverify โ€” Global phone number validation and lookup JSON API. 250 API requests/month. - Source: dev.to / almost 4 years ago
  • A phone number verification API: what is it?
    As the name implies, phone confirmation APIs are used to verify contact information. Phone numbers are checked for validity and continued use by verification APIs and services (i.e., they exist). They can also be used to identify geographic data and standardize phone numbers for regulatory purposes. The phrase phone verification API is extremely broad. - Source: dev.to / almost 4 years ago
  • Reverse Phone API: The Future of preventing fraudulent phone calls
    This technology can be used in combination with other security measures to further protect your privacy and prevent fraudsters from getting through to you. When it comes to privacy and security, there are a few things more important than keeping your phone number safe. That's why reverse phone API can be such a valuable tool. By using this technology, you can keep your number hidden from public view, making it... - Source: dev.to / about 4 years ago
View more

APIMaster mentions (0)

We have not tracked any mentions of APIMaster yet. Tracking of APIMaster recommendations started around Jun 2026.

What are some alternatives?

When comparing Numverify and APIMaster, you can also consider the following products

Veriphone - Phone number validation & carrier lookup

OpenRouter - A router for LLMs and other AI models

Antideo - Email, IP address and phone number validation API service

BazaarLink - BazaarLink ๆ˜ฏๅฐ็ฃ AI API ่šๅˆๅนณๅฐ๏ผŒๆ•ดๅˆ GPT-4oใ€Claudeใ€Geminiใ€DeepSeek ็ญ‰ไธปๆตๆจกๅž‹๏ผŒๆไพ› OpenAI ็›ธๅฎน APIใ€ๅฐๅนฃ่จˆ่ฒปใ€ไธ‰่ฏๅผ็ตฑไธ€็™ผ็ฅจ๏ผŒๅ”ๅŠฉๅฐ็ฃ้–‹็™ผ่€…่ˆ‡ไผๆฅญไธฒๆŽฅๆœ€ๆ–ฐ AI ๆœๅ‹™ใ€‚

Truecaller - Find a person by a name or phone number worldwide for free using Truecaller.

VoidLLM - Self-hosted LLM proxy with load balancing, multi-provider routing, API key management, and usage tracking. Privacy-first โ€” zero knowledge of your prompts.