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Slack Agent Builder Challenge

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By Startup Networks

The next era of productivity is agentic—and it lives in Slack.

We’re calling on all builders—from seasoned Slack veterans to "vibe coders" picking up the Slack CLI for the first time—to join the Slack Agent Builder Challenge. This is your opportunity to redefine the workplace by building intelligent agents that automate workflows, surface real-time insights, and connect systems in ways we haven’t imagined yet.

Whether you’re building a specialized agent for your organization, a tool for social good, or the next viral Slack Marketplace app, we want to see your creativity in action. Leverage the Slack Agent Builder, MCP integrations, and the Real-Time Search (RTS) API to show the world why Slack is the ultimate surface for AI.

Why Join?

  • Whether you're a "vibe coder" or a seasoned pro, the on-ramp is designed for speed—use the slack create agent command and ready-made templates for HR, IT, and Sales to go from an idea to a running agent in a single afternoon.

  • For those building for organizations, the hackathon serves as a guided path to the Slack Marketplace, giving you a structured deadline to ship your app and gain direct distribution to Slack’s massive enterprise customer base.

  • Compete for a share of the $42,000 cash USD prize pool, a chance to go to Dreamforce 2026, some Slack swag, an invite to an exclusive Slack community gathering and to be featured in the Slack newsletter and social media

Requirements

What to Create: an application that uses at least 1 of these technologies and fits into at least 1 of the tracks below 

  1. Slack AI capabilities

  2. MCP server integration

  3. Real-Time Search API 

New Slack Agent

  • Build a new Slack agent using one of the above three technologies to automate workflows, connect systems, or surface intelligent insights inside Slack

Slack Agent for Good

  • Build a new Slack agent using one of the above three technologies and address a real-world social impact problem. Use Slack’s agentic capabilities to make a meaningful difference in areas such as accessibility, education, economic opportunity, environmental sustainability, public health, or nonprofit operations.

Slack Agent for Organizations

  • New Agent. Build a new Slack agent using one of the above three technologies to automate workflows, connect systems, or surface intelligent insights inside Slack and submit it to the Slack Marketplace before the hackathon deadline; or 

  • Existing Agent. Significantly and demonstrably update an existing Slack Marketplace application using one of the above three technologies and submit it to the Slack Marketplace before the hackathon deadline. 

  

What to Submit

  • Project Track

  • Text description: summarize project’s features, functionality

  • “Slack Agent for Good Track” - be sure to explain the impact your Project has!

  • ~3-minute Demo video 

    • include footage that shows your working Project 

  • Architecture diagram

  • URL to your Slack developer sandbox. 

  • “Slack Agents for Organizations Track” 

    • Slack App ID to prove you submitted or resubmitted to the Slack Marketplace during the hackathon submission period.

    • If significantly updating an existing app, describe updates made during the hackathon submission period. 

Hackathon Sponsors

Prizes

$42,000 in prizes
First Place | New Slack Agent
$8,000 in cash
1 winner

• USD $8,000 USD in cash
• A voucher for the Slack Developer Certification (1 per team member up to 4 members)
• A voucher to Dreamforce 2026 (ticket only, 1 per team member up to 4 members)
• A voucher for Slack community swag (1 per team member up to 4 members)
• Invitation to an exclusive Slack community gathering and social media interview at Dreamforce 2026* (*subject to winners attendance at Dreamforce)
• Features in/on Slack Developer program website, the Slack developer platform newsletter & Slack social media handles

Second Place | New Slack Agent
$4,000 in cash
1 winner

• $4,000 USD in cash
• Features in/on Slack developer newsletter and Slack social media handles

First Place | Slack Agent for Good
$8,000 in cash
1 winner

• USD $8,000 USD in cash
• A voucher for the Slack Developer Certification (1 per team member up to 4 members)
• A voucher to Dreamforce 2026 (ticket only, 1 per team member up to 4 members)
• A voucher for Slack community swag (1 per team member up to 4 members)
• Invitation to an exclusive Slack community gathering and social media interview at Dreamforce 2026* (*subject to winners attendance at Dreamforce)
• Features in/on Slack Developer program website, the Slack developer platform newsletter & Slack social media handles

Second Place | Slack Agent for Good
$4,000 in cash
1 winner

• $4,000 USD in cash
• Features in/on Slack developer newsletter and Slack social media handles

First Place | Slack Agent for Organizations
$8,000 in cash
1 winner

• $8,000 USD in cash
• A voucher for the Slack Developer Certification (1 per team member up to 4 members)
• A voucher to Dreamforce 2026 (ticket only, 1 per team member up to 4 members)
• A voucher for Slack community swag (1 per team member up to 4 members)
• Invitation to an exclusive Slack community gathering and social media interview at Dreamforce 2026* (*subject to winners attendance at Dreamforce)
• Features in/on Slack Developer program website & newsletter & Slack social media handles
• 30 minute virtual conversation with a Slack product executive
• Winning app featured in/on Stack Overflow podcast

Second Place | Slack Agent for Organizations
$4,000 in cash
1 winner

• $4,000 USD in cash
• Features in/on Slack developer newsletter and Slack social media handles

Best UX
$2,000 in cash
1 winner

• $2,000 USD in cash
• Features in/on the Slack developer platform newsletter and Slack social media handles

Most Innovative Slack Agent
$2,000 in cash
1 winner

• $2,000 USD in cash
• Features in/on the Slack developer platform newsletter and Slack social media handles

Best Technological Implementation
$2,000 in cash
1 winner

• $2,000 USD in cash
• Features in/on the Slack developer platform newsletter and Slack social media handles

Devpost Achievements

Submitting to this hackathon could earn you:

Judges

Giselle Ocampo

Giselle Ocampo

Judging Criteria

  • Technological Implementation
    Does the project demonstrate quality software development? Does the project leverage at least one of these three technologies: Slack AI capabilities, MCP server integration, or real-time search API? How is the quality of the code?
  • Design
    Is the user experience and design of the project well thought out? Is there a balanced blend of frontend and backend in the software?
  • Potential Impact
    How big of an impact could the project have on the Slack community? How big of an impact could it have beyond the target community?
  • Quality of the Idea
    How creative and unique is the project? Does the concept exist already? If so, how much does the project improve on it?
  • Previous Link Hack Begin

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