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cognee VS Draft and Check

Compare cognee VS Draft and Check and see what are their differences

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Illuminate the future with AI sponsored
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cognee logo cognee

Memory for AI Agents

Draft and Check logo Draft and Check

Honest email verification with real SMTP checks, pay-as-you-go
Not present

Build dynamic memory for Agents and replace RAG using scalable, modular ECL (Extract, Cognify, Load) pipelines.

  • Draft and Check Real SMTP mailbox check with catch-all detection
    Real SMTP mailbox check with catch-all detection //
    2026-08-29
  • Draft and Check Honest verdicts and a 0 to 100 deliverability score
    Honest verdicts and a 0 to 100 deliverability score //
    2026-08-29
  • Draft and Check One REST call, JSON in and out
    One REST call, JSON in and out //
    2026-08-29

Draft & Check verifies whether an email address is really deliverable before you send, so your lists stay clean and your sender reputation stays intact.

It runs a full pipeline on every address: - Syntax and DNS/MX checks - Disposable and role-address detection - Typo suggestions ("did you mean gmail.com?") - A live SMTP mailbox probe with catch-all detection

Every address returns a clear verdict (deliverable, risky, undeliverable, or unknown) and a 0 to 100 score. When a mailbox genuinely cannot be confirmed it returns "unknown" instead of a false "deliverable", honest results you can trust.

Pay-as-you-go credits that never expire. Start with 100 free, no card. Single and batch verification via a simple REST API, plus a RapidAPI listing. EU-hosted and GDPR-conscious.

cognee

Website
cognee.ai
Pricing URL
Official cognee Pricing
$ Details
freemium
Platforms
-
Release Date
-
Startup details
Country
Germany
City
Berlin
Founder(s)
Vasilije Markovic
Employees
1 - 9
Edit details

Draft and Check

Website
draftandcheck.com
Pricing URL
Official Draft and Check Pricing
$ Details
freemium $9 / One-off (2,000 credits, never expire)
Platforms
REST API Web SaaS Cloud
Release Date
2026 August
Startup details
Country
Belgium
Founder(s)
Mattijs Moens
Employees
1 - 9
Edit details

cognee features and specs

  • User-Friendly Interface
    Cognee is designed with a user-friendly interface that makes it easy for individuals to navigate and utilize its features without a steep learning curve.
  • Integration Capabilities
    Cognee offers robust integration options with other software and tools, allowing users to incorporate it seamlessly into their existing workflows.
  • Advanced AI Features
    The platform leverages advanced AI technologies to provide accurate and efficient outcomes, enhancing productivity and efficiency in tasks.
  • Customizable Solutions
    Cognee provides customizable tools and solutions, enabling users to tailor the platform to meet their specific needs and requirements.
  • Strong Customer Support
    Cognee offers strong customer support to assist users with any issues or questions, ensuring a smooth and problem-free experience.

Possible disadvantages of cognee

  • High Cost
    The pricing model of Cognee can be relatively high, making it less accessible for small businesses or individual users with limited budgets.
  • Steep Learning Curve for Advanced Features
    While the basic interface is user-friendly, mastering advanced features may require a significant time investment for training and familiarization.
  • Limited Offline Capabilities
    Cognee relies heavily on internet connectivity for many of its functions, which can be a limitation in areas with poor internet access.
  • Occasional Technical Glitches
    Users might experience occasional minor technical glitches or bugs, impacting the overall smoothness of the user experience.
  • Privacy Concerns
    As with many AI platforms, there may be concerns related to data privacy and security, especially for sensitive information.

Draft and Check features and specs

  • Verification
    Live SMTP mailbox check with catch-all detection
  • Checks
    Syntax, DNS/MX, disposable, role, typo suggestions
  • Verdicts
    Deliverable, risky, undeliverable, unknown + 0 to 100 score
  • API
    REST, single and batch up to 1,000 addresses
  • Pricing
    Pay-as-you-go credits that never expire
  • Free tier
    100 credits to start, no card

Analysis of cognee

Overall verdict

  • Cognee is a solid open-source memory and knowledge-graph framework for AI agents, offering a developer-friendly way to build persistent, contextual memory layers using ECL (Extract, Cognify, Load) pipelines. It's well-suited for teams building retrieval-augmented and agentic applications, though as a relatively young project it may require some technical comfort and tolerance for evolving APIs.

Why this product is good

  • Provides a structured memory layer for AI agents and LLM applications, going beyond simple vector search by combining knowledge graphs with embeddings
  • Open-source with an active developer community, making it flexible, transparent, and customizable
  • Uses ECL (Extract, Cognify, Load) pipelines that make it easier to ingest and interconnect diverse data sources
  • Integrates with common tools and databases (vector stores, graph databases, and popular LLMs)
  • Aims to reduce hallucinations and improve context relevance by giving agents persistent, interconnected memory
  • Reasonable choice for developers wanting to avoid building a custom memory infrastructure from scratch

Recommended for

  • Developers building AI agents that need persistent, long-term memory
  • Teams creating retrieval-augmented generation (RAG) applications with complex, interconnected data
  • Startups and engineers who prefer open-source, self-hostable solutions over closed platforms
  • Projects requiring knowledge-graph-based reasoning rather than plain vector similarity search
  • Technical users comfortable working with evolving APIs and Python-based tooling

cognee videos

+ Add

How to turn your data into a knowledge graph

More videos:

  • Demo - cognee in 4 minutes

Draft and Check videos

No Draft and Check videos yet. You could help us improve this page by suggesting one.

Add video

Category Popularity

0-100% (relative to cognee and Draft and Check)

cognee

Draft and Check

AI
100 100%
AI
0% 0
Developer Tools
78 78%
Developer Tools
22% 22
AI Tools
100 100%
AI Tools
0% 0
API
0 0%
API
100% 100

Questions & Answers

As answered by people managing cognee and Draft and Check.

Which are the primary technologies used for building your product?

Draft and Check's answer:

Node.js and TypeScript with a Fastify API, SQLite for storage, Dockerized on an EU (Belgium) server behind Caddy, Stripe for billing, and Cloudflare for delivery. Verification is a custom pipeline of DNS/MX lookups and a direct SMTP client for the mailbox probe.

What makes your product unique?

Draft and Check's answer:

It runs a real SMTP mailbox check on every address, connecting to the mail server to confirm the inbox exists, with catch-all detection, not just syntax and DNS. And it is honest: when a mailbox genuinely cannot be confirmed it returns "unknown" instead of a false "deliverable." Credits are pay-as-you-go and never expire, with no subscription.

Why should a person choose your product over its competitors?

Draft and Check's answer:

It is typically 3 to 4 times cheaper per verification than incumbents like ZeroBounce, with credits that never expire and no monthly subscription. You still get real SMTP verification and catch-all detection, a clean REST API, and honest verdicts. Start with 100 free credits, no card required.

How would you describe the primary audience of your product?

Draft and Check's answer:

Developers adding email checks to signup and checkout flows, growth and sales teams cleaning cold-outreach lists, agencies and recruiters, and anyone sending email at volume who wants to protect their sender reputation.

What's the story behind your product?

Draft and Check's answer:

Draft and Check was built by SovereignShield BV out of a simple frustration: most verifiers either lock you into subscriptions or return optimistic "deliverable" results that still bounce. We wanted verification that is honest about what it can and cannot confirm, priced fairly, and simple to wire up, so we built a deterministic pipeline that tells you the truth, including when the answer is "unknown."

User comments

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Social recommendations and mentions

Based on our record, cognee seems to be more popular. It has been mentiond 2 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.

cognee mentions (2)

  • Building an AI research copilot that catches its sources lying
    Research tools forget across sessions, and they never notice when two sources disagree. Crosscheck is a small copilot on top of cogneethat does both: persistent memory of everything you feed it, and a hero feature that flags when sources contradict each other — e.g. "FooDB sustained 50,000 req/s" (2021) vs "only 10,000 req/s" (2024). - Source: dev.to / about 2 months ago
  • Building a Local-First Research Agent that Actually Remembers (using AIsa, Cognee & Ollama)
    Cognee structures this raw text into a Knowledge Graph. Instead of just saving "Pricing is popular", it creates nodes:. - Source: dev.to / 7 months ago

Draft and Check mentions (0)

We have not tracked any mentions of Draft and Check yet. Tracking of Draft and Check recommendations started around Aug 2026.

What are some alternatives?

When comparing cognee and Draft and Check, you can also consider the following products

Mem0 - Your private, local memory layer for all AI tools

ZeroBounce - Removes invalid emails from your list to prevent email bounces from ruining your deliverability.

Claiv Memory - The missing memory layer for AI products.

NeverBounce - Real-time email verification and cleaning to ensure emails never bounce.

ChainMemory - Portable, verifiable memory for AI agents — works across ChatGPT, Claude, Gemini and any MCP client

Kickbox - Verify your email address lists with our drag and drop interface, or integrate into your app with our API. Prevent fake and bot account sign-ups by confirming your users are real humans with a real email address.

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