Graph Hacks

Overview

Graph Hacks, hosted by Hacker's Unity in collaboration with WeMakeDevs and Cognee, is a month-long online event inviting developers to contribute to open-source software. Unlike traditional hackathons where projects are often archived, this event focuses on building production-ready integrations for Cognee, an open-source memory layer designed to provide real-time context to AI agents. All successful contributions will be merged directly into the main Cognee product codebase, ensuring their impact and visibility globally. The primary goal of Cognee is to address the common limitation of AI models, which start with zero context on every call. Cognee tackles this by ingesting diverse data types—documents, chats, code, and other data—and transforming them into an interconnected knowledge graph. This enables AI agents to reliably remember and reason across multiple sessions, enhancing their functionality and intelligence. Participants can engage in two main ways: either by selecting and addressing an existing integration-related issue labeled 'INTEGRATIONS' on the Cognee GitHub repository, or by proposing and developing a brand-new integration not yet supported by Cognee. Alongside each merged Pull Request (PR), contributors are required to publish a short blog post on platforms like Substack, Dev.to, or Medium, detailing the integration's functionality and real-world application. The event is free to participate in, runs for the entire month of October, and contributions are made individually. Graph Hacks offers a total prize pool exceeding $5,000. The top contributor, determined by the most merged contributions, will receive $2,000, with an option to choose between an iPhone Duo, a MacBook Pro, or a cash equivalent. Additionally, 20 randomly selected individuals who successfully submit a merged PR will each be awarded a $100 cash prize, recognizing broader participation and quality contributions.

What to build

Participants are tasked with building production-ready integrations for Cognee, an open-source memory layer for AI agents. This can be done by: * Path A: Pick an Existing Issue: Choose an open issue labeled 'INTEGRATIONS' on the Cognee GitHub repository and develop a solution for it. Examples of integrations include GitLab, Linear, Elasticsearch, Postman, AWS S3, or ClickUp. * Path B: Propose a New Integration: Identify and propose a brand-new integration that Cognee currently does not support. This involves opening a new GitHub issue to outline the proposed integration (up to 5 issues maximum per participant).

Prizes

Key dates

• Event StartOctober 1, 2026
• Deadline for SubmissionsOctober 31, 2026 @ 5:00pm EDT

Eligibility

Participants must be of legal age of majority in their country of residence. All countries/territories are eligible, with the exception of standard exclusions.

How to enter

1. **Mandatory Registration:** Complete the registration via the provided link on WeMakeDevs.
2. **Pick an Issue:** Browse open integration issues on the Cognee GitHub repository. Comment on your chosen issue with your proposed approach and get assigned by @NMZivkovic before beginning development.
3. **Build & Open PR:** Follow the Cognee integration guidelines and open your Pull Request (PR) during the month of October.
4. **Write a Blog Post:** Publish a short blog post (on platforms like Substack, Dev.to, or Medium) explaining how your integration works in a real-world context.
5. **Submit:** Fill out the submission form on WeMakeDevs, providing links to your PR and blog post. A maximum of 5 active PRs are allowed at a time for submission.

Submission requirements

• Participants must build integrations for Cognee, an open-source memory layer for AI agents.
• Contributions should either address existing issues labeled 'INTEGRATIONS' on the Cognee GitHub repository or propose and build new integrations.
• Along with each Pull Request (PR), contributors must publish a short blog post (e.g., on Substack, Dev.to, Medium) explaining how the integration functions in a real-world scenario.
• Contributions should be production-ready and follow Cognee integration guidelines.
• Submissions must include links to the PR and the accompanying blog post on the WeMakeDevs submission form.

Judging criteria

• Innovation
• Technical Implementation
• Presentation

Sponsors & partners

Resources

• Official Cognee Discord
• Cognee GitHub Repository
• WeMakeDevs Registration Link