"Booked a bounce house and DJ in one afternoon — both vendors showed up early and crushed it."
Maya R.
Backyard birthday
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From backyard parties to once-in-a-lifetime weddings — get matched with vetted local vendors, compare side-by-side estimates, and book in minutes.
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What real customers say
4.9· 20+ recent reviews
"Quotes landed within 24 hours. Side-by-side comparison made the decision a no-brainer."
Daniel K.
Wedding reception
"Kay asked the perfect questions. The vendors she matched us with were polished and on-budget."
Priya S.
Corporate gala
"The waterslide was the hit of the party. Stripe deposit was painless."
Marcus T.
Sweet sixteen
"Florist + photo booth + cake in under 10 minutes. Could not have done this on my own."
Elena G.
Baby shower
"Affordable, vetted, and local. Exactly what our neighborhood needed."
Jordan W.
Block party
"Loved that I could chat with vendors without committing. Felt totally in control."
Sofia M.
Engagement dinner
"Tent rental was flawless and the lawn games kept the cousins busy for hours."
Andre L.
Graduation
"Romantic uplighting and a cake to die for. Vendors coordinated directly with each other."
Hannah B.
Anniversary
"Got 4 estimates by morning. Picked one, paid the deposit, done."
Tyrell J.
Block fundraiser
"Balloon arch was Instagram gold. Setup crew was friendly and fast."
Rachel P.
Bridal shower
"Sailcloth tent at twilight — exactly the vision. 4Kay made it stress-free."
Owen H.
Backyard wedding
"Bilingual vendor options were a huge plus. My family felt seen."
Camila V.
Quinceañera
"Inflatable obstacle course was a smash. Kids and adults wouldn't get off it."
Brett A.
Company picnic
"Photo booth, bartender, lighting — three bookings, one platform."
Nina O.
Holiday party
"Estimate was honest, no surprise fees. Vendor was a true pro."
Diego F.
Birthday bash
"DJ read the room perfectly. Already rebooking for next year."
Aaliyah C.
Sweet sixteen
"Catering options blew us away. Guests are still talking about the food."
Liam D.
House warming
"Coordinating multiple vendors across two days was effortless on 4Kay."
Mei Z.
Cultural festival
"Everything we needed in one place. Saved hours of phone tag."
Sam Q.
Charity gala
"Booked a bounce house and DJ in one afternoon — both vendors showed up early and crushed it."
Maya R.
Backyard birthday
"Quotes landed within 24 hours. Side-by-side comparison made the decision a no-brainer."
Daniel K.
Wedding reception
"Kay asked the perfect questions. The vendors she matched us with were polished and on-budget."
Priya S.
Corporate gala
"The waterslide was the hit of the party. Stripe deposit was painless."
Marcus T.
Sweet sixteen
"Florist + photo booth + cake in under 10 minutes. Could not have done this on my own."
Elena G.
Baby shower
"Affordable, vetted, and local. Exactly what our neighborhood needed."
Jordan W.
Block party
"Loved that I could chat with vendors without committing. Felt totally in control."
Sofia M.
Engagement dinner
"Tent rental was flawless and the lawn games kept the cousins busy for hours."
Andre L.
Graduation
"Romantic uplighting and a cake to die for. Vendors coordinated directly with each other."
Hannah B.
Anniversary
"Got 4 estimates by morning. Picked one, paid the deposit, done."
Tyrell J.
Block fundraiser
"Balloon arch was Instagram gold. Setup crew was friendly and fast."
Rachel P.
Bridal shower
"Sailcloth tent at twilight — exactly the vision. 4Kay made it stress-free."
Owen H.
Backyard wedding
"Bilingual vendor options were a huge plus. My family felt seen."
Camila V.
Quinceañera
"Inflatable obstacle course was a smash. Kids and adults wouldn't get off it."
Brett A.
Company picnic
"Photo booth, bartender, lighting — three bookings, one platform."
Nina O.
Holiday party
"Estimate was honest, no surprise fees. Vendor was a true pro."
Diego F.
Birthday bash
"DJ read the room perfectly. Already rebooking for next year."
Aaliyah C.
Sweet sixteen
"Catering options blew us away. Guests are still talking about the food."
Liam D.
House warming
"Coordinating multiple vendors across two days was effortless on 4Kay."
Mei Z.
Cultural festival
"Everything we needed in one place. Saved hours of phone tag."
Sam Q.
Charity gala
See it in action
From idea to booked in minutes
No phone tag, no spreadsheets. Tell Kay about your event, compare real estimates, and pay securely — all in one place.
01
Request a quote
Chat with Kay in seconds. Share your event type, date, guest count and budget — that's it.
02
Compare estimates
Vetted local vendors send detailed estimates within 24–48 hours. Compare side-by-side.
03
Book & pay securely
Lock it in with a small deposit. Pay full, split with Afterpay, Affirm or Cash App Pay.
Built for real planning
Tailor every booking, your way
Optional add-ons
Customize what's included — never overpay
Every estimate comes with clearly priced optional extras like setup, generators, extended hours, themed decor or on-site attendants. Toggle them on and the total updates instantly. Skip them now, add them later — your call.
- Transparent line-item pricing from each vendor
- Live total — no surprises at checkout
- Add or remove extras any time before the event
Ask the vendor anything
Follow-up questions, answered fast
Got a question before you book? Send the vendor a private follow-up right inside your estimate. They get notified instantly by email and SMS, and replies stay neatly attached to your event — no lost text threads.
- Private, on-platform messaging with each vendor
- Real-time email & SMS notifications both ways
- Full conversation history saved with your booking
Inspiration gallery
Real events, unforgettable moments.
Swipe or scroll through celebrations brought to life by 4Kay vendors.
Every category, every occasion
Whatever you need, we'll find it.
15+ vetted categories, hundreds of subcategories. Tell Kay what you're planning and we'll do the rest.
From the blog
Plan smarter, host unforgettably.
Best practices, safety tips, and budget hacks from the 4Kay editorial team.
Best Practices
Party rental 101: 7 best practices every host should know
From confirming setup windows to verifying insurance, these habits keep your event smooth and stress-free.
Read article →
Safety
Inflatable safety guide: what to ask before you book
Anchoring, weight limits, and weather rules — a quick checklist that protects your guests (and your deposit).
Read article →
Budget
How to host an unforgettable party on a tight budget
Smart category swaps, off-peak dates, and bundled bookings that stretch every dollar without dimming the vibe.
Read article →
Vendors
How to pick the right vendor every time
Reviews, response time, and the underrated red flags — a framework for choosing pros you'll rebook.
Read article →
Kids
Kid-friendly party setups that parents actually love
Layouts, supervision, and snack stations that make backyard birthdays feel professionally produced.
Read article →
Weather
Outdoor events: backup plans that actually work
Tents, indoor pivots, and the cancellation clauses worth negotiating before you sign.
Read article →
Best Practices
Party rental 101: 7 best practices every host should know
From confirming setup windows to verifying insurance, these habits keep your event smooth and stress-free.
Read article →
Safety
Inflatable safety guide: what to ask before you book
Anchoring, weight limits, and weather rules — a quick checklist that protects your guests (and your deposit).
Read article →
Budget
How to host an unforgettable party on a tight budget
Smart category swaps, off-peak dates, and bundled bookings that stretch every dollar without dimming the vibe.
Read article →
Vendors
How to pick the right vendor every time
Reviews, response time, and the underrated red flags — a framework for choosing pros you'll rebook.
Read article →
Kids
Kid-friendly party setups that parents actually love
Layouts, supervision, and snack stations that make backyard birthdays feel professionally produced.
Read article →
Weather
Outdoor events: backup plans that actually work
Tents, indoor pivots, and the cancellation clauses worth negotiating before you sign.
Read article →
For vendors
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Monthly referred bookings5 / month
Average booking value$800
Estimated monthly earnings
$300