Devpost
Participate in our public hackathons
Devpost for Teams
Access your company's private hackathons
Grow your developer ecosystem and promote your platform
Drive innovation, collaboration, and retention within your organization
By use case
Blog
Insights into hackathon planning and participation
Customer stories
Inspiration from peers and other industry leaders
Planning guides
Best practices for planning online and in-person hackathons
Webinars & events
Upcoming events and on-demand recordings
Help desk
Common questions and support documentation
Sort by:
A student marketplace where PayPal holds the buyer's money until a QR scan at the meetup. AI scores scam risk before payment and an AI agent proposes dispute resolutions.
One person pays, then chases friends for weeks. Split It Up fixes that in the moment: snap the receipt, share a link, and everyone pays for exactly what they had, right there.
Autonomous AI commerce agent that ingests merchant catalogs, negotiates personalized deals in real time, and executes friction-free PayPal Sandbox 1-click orders and recurring subscriptions.
Autonomous AI agent powered by PayPal REST APIs & Ai to verify tracking, compile evidence, and win merchant disputes with deterministic Seller Protection compliance.
Resurgence: every relief dollar, traced. A transparent disaster-aid tracking that follows each donation from the need to the purchase to the delivery. Not just sanctioned but sanctuary
The firewall between AI agents and your money. MandateGate verifies evidence, policy, and payment authority before an autonomous agent can execute a PayPal transaction.
Mandate is a financial firewall for autonomous AI agents. It uses PayPal rails, prompt-injection defense, and cryptographic ledgers to prevent runaway costs and govern enterprise AI spend. Zero risks.
Snap a photo of your paper price list. Claude turns it into a PayPal-backed shop that buyers, and any AI assistant, can order from, paid straight to the seller.
AI agents can now run PayPal refunds and payouts. Warden lets them work inside limits you set in plain English, and blocks scams and hidden prompt injections that steer them.
A maker sells to the world by speaking to her phone. AI turns her voice into a listing, a co-op vouches it is handmade, and PayPal splits the money to her and her co-op.
Verified rental listings, refereed site visits and PayPal invoices, so neither broker nor tenant can cheat.
Your AI-powered payment copilot — smarter spending decisions, safer transactions, and secure payments with PayPal
SENTINEL transforms suspicious PayPal payments into explainable decisions with AI-powered fraud detection, evidence-backed investigations, and human-approved recovery workflows.
Defying freelance friction through AI-driven milestone automation and instant PayPal zero-gravity payouts
What they said, next to what they did, every source linked. An AI eagle digs up the record. You make the call.
The secure financial guardrail for autonomous AI agents, enabling policy-controlled purchases, dynamic spending limits, and instant settlement via PayPal.
Empowering SMEs with an AI business assistant to automate payments, manage invoices, predict cash flow, and grow smarter with PayPal.
CartPilot turns a plain-language shopping brief into a budget-aware shortlist of live products, explains the match, and lets shoppers review checkout through PayPal Sandbox.
Delegating autonomous procurement, milestone escrow, and SaaS audits to AI agents with real PayPal APIs and Gemini reasoning.
An AI copilot that investigates every PayPal dispute, tells small sellers whether to fight or settle, and drafts the response, sent to PayPal only when the merchant approves.
An AI accounts-receivable agent for freelancers: turns "go ahead!" emails into PayPal invoices and writes the payment reminders you keep putting off, in the right tone for each client.
From overdue to paid out, on autopilot.
Thai gold shop POS with an AI reservation agent: chat in English, get a live-rate quote, pay a 10% PayPal deposit that holds the piece and price for 48 hours, then collect at the counter.
AI that turns commercial disputes into evidence-backed PayPal settlements.
