CALL-E: Your Code Is Calling

About the challenge

CALL-E is a developer-first platform for building AI agents that make real phone calls and get real-world tasks done. Instead of stopping at text, your agents can plan a call, dial out, hold a natural conversation, adapt in real time, and return structured results you can act on — all through CALL-E's SDK, API, and MCP. In other words: your agents can finally pick up the phone (and actually get something done while they're on the line). ☎️

In CALL-E: Your Code Is Calling, you'll put that to work. Build and deploy a functional application that uses CALL-E to solve a real business or project problem — customer outreach, appointment scheduling, lead qualification, service coordination, workflow automation, or something no one's tried yet. Whether you're an AI engineer, agent builder, or technical founder, this is your chance to push a brand-new platform in directions its makers haven't imagined, share feedback that shapes the roadmap, and compete for a share of $10,000 in prizes.

Why join

Build something real. Ship an AI agent that completes actual tasks over the phone — not a demo that just generates text.

Work with a new platform first. Get hands-on early with CALL-E's SDK, API, MCP, CLI, or SKILL, and help shape what it becomes.

Shape the roadmap. Your feedback and bug reports go straight to the CALL-E team, with prizes for the most useful input.

Compete for $10,000 in cash prizes, plus meetings with the CALL-E team, blog features, and CALL-E credits.

Requirements

What to Build

Build and deploy a functional application that uses CALL-E's SDK, API, MCP, CLI, or SKILL to create an impactful business or project use case.

All new CALL-E accounts come with 20 free CALL-E calls.

Running out of CALL-E calls while building your project? Request additional calls via this form.

What to Submit

• Open a pull request to CALL-E's public repository at https://github.com/CALLE-AI/awesome-phone-call-agents.
• Follow the instructions under the “README” to submit your pull request to the correct Contribution Area (i.e. “Agent Skills,” “Workflow Plugins”, etc.)
• On the Devpost submission form, provide the URL to your pull request.
• Include a demonstration video of your project (about three minutes), uploaded to YouTube or Vimeo and made publicly visible.
• Provide the email address associated with your CALL-E account
• Optional: Provide a URL to your functional demo application
• Have feedback for us? Please submit our - CALL-E Feedback Surveyand be eligible to win one of our five- Most Valuable Feedbackprizes!

Prizes

Most Practical Use Case

Virtual meeting with the CALL-E team

Blog post feature

20,000 CALL-E credits (~200 USD in value)

Most Innovative Use Case

Virtual meeting with the CALL-E team

Blog post feature

20,000 CALL-E credits (~200 USD in value)

Honorable Mention

Virtual meeting with the CALL-E team

Blog post feature

10,000 CALL-E credits (~100 USD in value)

Most Valuable Feedback

10,000 CALL-E credits (~100 USD in value)

Judging Criteria

• Real World Impact Does the project identify a real, specific phone-work problem and make a credible case that it solves it for real users? Is it worth building further for real users after the hackathon — not a generic "AI that makes phone calls" concept.
• Quality of the Idea Is this a creative, non-obvious use of CALL-E that shows genuine understanding of the problem space? Is the contribution (skill, app, plugin, or demo) clear, well-scoped, and reusable by the community?
• Technical Implementation How thoroughly and skillfully does the project use CALL-E? Does the code reflect genuine effort and a working, non-trivial implementation — CALL-E imported and actually called at runtime, not just referenced?
• Product Experience & Demo Does the project deliver a complete, coherent experience, and does the demo video clearly communicate what it does and why it matters?