API & Platform Startups

Find API-first and platform startups building developer infrastructure. These founders are creating usage-based products that other businesses build on, creating powerful lock-in and network effects.

68
Total Startups
13%
With Revenue
54%
Technical Founders
Baltimore
Top City
Ben Wiggins

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API & Platform Startups (68)

NTrigo

by Sarit Gilor

Profitable
Stage: SERIES B
B2B SAAS
SaaSSubscription

OVUE

by Kenny Berylle

MVP
Stage: ANGEL
AI MLB2B SAAS
SaaSMarketplace

StrategicInnovationsAI

by TravisCrew

MVP
Stage: PRE SEED
AI INFRASTRUCTURELLM TOOLS AND PLATFORMSSMB SAAS
SubscriptionAPI-Based

The deck identifies two urgent problems: missed calls leading to lost revenue for SMBs and the high cost of private long-context AI inference. Both issues are tied to memory, state, and inference...

TOOD for Writers

by Parth Shah

Launched
Stage: PRE SEED
B2B SAASAPPLIED AIAI ML
SaaSSubscription

Writers lack a single platform to find work, apply, and get hired; income instability for writers.

Product BuiltRepeat FounderTechnicalWebsite

VisualBook

by Nitesh Baskaran

Launched

Bangalore

Stage: PRE SEED
EDTECHGENERATIVE AIB2B SAAS
SaaSSubscription

Textbooks and corporate training underuse images because custom illustration is slow and expensive, leaving many micro-concepts abstract and reducing comprehension and retention. Learners must...

Product BuiltTechnical

INsure Wallet

by Brandon Boyd

MVP
Stage: PRE SEED
FINTECHPAYMENTSINSURANCE+1
TransactionalAPI-Based

Traditional insurance claim payouts are slow, leaving policyholders without immediate funds for urgent repairs, housing, contractor payments, and essentials.

TripTips

by Darian Barnett

Beta

Las Vegas, NV

Stage: PRE SEED
ECOMMERCE MARKETPLACESB2B SAASAPIS AND PLATFORMS
SaaSMarketplace

Manual, untracked referral payments creating wasted spend and lack of ROI for foot-traffic businesses.

Repeat FounderTechnicalWebsiteLinkedIn

Sephinity Ltd

by Olumide Alade

Beta

Lagos, Lagos

Stage: BOOTSTRAPPED
B2B SAASVERTICAL SAASOPERATIONS INFRA
SaaSSubscription

The problem is clearly identified as the manual management of auto repair workshops, leading to inefficiencies and lost revenue.

Product BuiltTechnicalWebsiteLinkedIn

OnPoint

by Todd Waldemar

Launched

VA

Stage: SEED
OPERATIONS INFRALOGISTICS AND SHIPPINGAPIS AND PLATFORMS+3
SaaSAPI-Based

Commerce and security in restricted environments (e.g., military bases) are broken: manual/inconsistent credentialing, low courier success rates, no valid addresses, navigation blind spots, high cart...

Product BuiltRevenueRepeat FounderTechnicalWebsite

Tyce

by Lylia Djait-Paulien

MVP
Stage: BOOTSTRAPPED
AI MLPROPTECH
SaaSUsage-Based

Inzollo

by Dan Rowe

Launched
Stage: SEED
B2B SAAS
SaaSUsage-Based

Independent distributors lack a digital operating system tailored to their workflows and ordering.

Product BuiltRevenueTechnicalWebsite

Yen Network

Launched
Stage: PRE SEED
B2B SAASAPIS AND PLATFORMS
SaaSAPI-Based
Product BuiltWebsite

LendlyX

by Zachary Farris

Launched

Lewes, DE

Stage: PRE SEED
FINTECHAI ML
SaaSUsage-Based

Private real estate lenders rely on untrusted photos and manual checks, leading to fraud and slow approvals.

Product BuiltRepeat FounderTechnicalWebsite

Catalyst-Q

by Travis Crew

Launched
Stage: SEED
QUANTUM COMPUTINGDEVELOPER TOOLSAI INFRASTRUCTURE
SaaSAPI-Based

Institutions lack trust at scale for quantum systems, simulators, and hybrid workflows. Outputs are hard to independently verify; physical QPUs need auditability, replay, and benchmark discipline.

Product Built

Relief Wallet

by Brandon Boyd

Prototype
Stage: PRE SEED
FINTECHINSURANCEPAYMENTS+1
TransactionalSaaS

Slow and uncontrolled insurance claims payouts (days to weeks) exacerbate financial instability for policyholders, while insurers lack real-time control and visibility into emergency disbursements.

Repeat Founder

Cognivex

by Tokelo Mahlong

MVP
Stage: PRE SEED
AI INFRASTRUCTUREAI ML
SaaSAPI-Based

Enterprise AI pilots are costly and slow to integrate with ERP/CRM systems, lack ROI tracking, and are viewed by finance as cost centers. Average cost to integrate a single AI workflow is $2M+ with...

Product BuiltWebsite

Dizruptors / LevelUp

by Cornelius Bryant

MVP

Baltimore, Maryland

Stage: PRE SEED
MARTECHB2B SAAS
SaaSSubscription

The deck identifies a significant problem in marketing: the gap between measuring activity and understanding decision-making, which leads to inefficient ad spending.

Repeat FounderTechnicalWebsiteLinkedIn

VisionUX

by Enes Gadi

Prototype

Samsun

Stage: PRE SEED
AI MLAPPLIED AI
SaaSAPI-Based

Mobile UX audits are subjective and current tools are limited to web; there is a lack of objective, reproducible, engineering-validated UX checks for native mobile apps.

Technical

PolicyPaid

by BrandonBoyd

MVP

Nashville, Tennessee

Stage: PRE SEED
FINTECHPAYMENTSBANKING AS A SERVICE
SaaSTransactional

Slow, paper-based insurance claims disbursement creates liquidity bottlenecks and out-of-pocket burdens for policyholders; fraud and disputes increase costs.

Product BuiltWebsite

TokenOS

by Tyler Ray

Launched

Seattle, WA

Stage: SEED
AI MLCRYPTO BLOCKCHAIN
SaaSAPI-Based

Web3 builders struggle to launch apps, websites, and tokens quickly; developer scarcity and high fraud/scam risk.

Product BuiltRepeat FounderTechnicalWebsiteLinkedIn

Limi Lighting

by Umer Asif

Launched
Stage: SERIES A
IOTCONSUMER
HardwareSaaS

Fragmented, inflexible lighting market forcing compromises on price, design, installation, and functionality.

Product BuiltRevenueRepeat FounderTechnicalWebsite

RPS.GAME

by inv_inquiries@rps.game

MVP
Stage: ANGEL
WEB3 CRYPTOGENERATIVE AI
TransactionalUsage-Based

High barriers and costs to set up and operate online casinos: marketing, licensing (up to $30k per jurisdiction), and expensive software. Players must beat the house; many games are perceived as...

Product BuiltWebsite

Agronnox Hub

by Ibrahim Ogunsetan

Prototype
Stage: BOOTSTRAPPED
AI MLB2B SAASENTERPRISE SAAS+2
SaaSSubscription

Evo Image Editor

by Benjamin Jones

MVP
Stage: PRE SEED
AI ML
SubscriptionUsage-Based

SabotageFantasy

by AdamEmerson

Beta
Stage: PRE SEED
CONSUMERPAYMENTS
TransactionalUsage-Based

The deck identifies the problem as the stagnation in fantasy sports, where traditional models lead to user disengagement after initial drafts and lack innovation in monetization and engagement.

Accessible Benefits

by Ryan

Launched
Stage: PRE SEED
INSURANCEB2B SAAS
SaaSSubscription

Millions of independent workers and SMBs lack access to affordable, embedded benefits.

Product Built

Botco.ai

by info@botco.ai

Launched
Stage: POST SEED
AI MLAPPLIED AIGENERATIVE AI+2
SaaSSubscription

Drug development faces high failure rates, complex FDA/EMA regulatory requirements, patient recruitment and retention challenges in clinical trials, safety monitoring and compliance burdens, and...

Product BuiltWebsite

Y

by Benjamin Shahin

Beta
Stage: PRE SEED
SOCIAL NETWORKSAI ML
SaaSSubscription

Lack of information integrity and trust operations on global social platforms, including manipulation by bots and foreign actors.

Product BuiltWebsite

Quetu

by Patrick Kamau

Alpha

Nairobi, Nairobi

Stage: PRE SEED
HardwareSubscription

Millions of Kenyans lack affordable internet; mobile data is expensive and fixed ISPs skip underserved areas.

Product BuiltTechnical

motchi.art

by Vedran Balagovic

Launched
Stage: PRE SEED
GENERATIVE AIDEVELOPER TOOLSB2B SAAS
SaaSSubscription

Custom character animation is expensive ($500–$5,000+ per asset) and slow; DIY tools like Rive/After Effects have steep learning curves; current AI tools lock users into hosted video URLs without...

Product BuiltRevenueTechnicalWebsite

Buddee

by Parth Barot

MVP
Stage: PRE SEED
ECOMMERCE MARKETPLACESCONSUMER
SubscriptionTransactional

Decision fatigue for grocery and meal selection; consumers spend significant time and money deciding what to eat.

Product BuiltTechnicalWebsite

Freightackle

by Sina Mostafazadeh

MVP
Stage: BOOTSTRAPPED
B2B SAASOPERATIONS INFRA
SaaSUsage-Based

ECM

by Ronak Kumar Samantray

Launched
Stage: PRE SEED
AI INFRASTRUCTUREAPPLIED AISPACE SATELLITE
HardwareUsage-Based

Lack of low-latency, in-orbit compute and mission-critical storage for time-sensitive geospatial and defense/finance use cases.

Product BuiltRevenueTechnical

Enhanced Points Inc.

by Fahad Hossain

Beta

New York

Stage: PRE SEED
AI MLAPPLIED AIB2B SAAS+1
SaaSServices

Fundraising and investor relations workflows for alternative asset managers are manual, fragmented, and inefficient.

Product BuiltRepeat FounderTechnicalLinkedIn

Axis Theorem

by Daniel McSpadden

Alpha

Waco, Texas

Stage: BOOTSTRAPPED
AI INFRASTRUCTUREAPPLIED AIGENERATIVE AI+5
SaaSAPI-Based

Prysmai

by Osarenren Isorae

Beta
Stage: ANGEL
AI INFRASTRUCTURELLM TOOLS AND PLATFORMSDEVELOPER TOOLS+2
SaaSSubscription

Enterprises deploying autonomous AI agents face prompt injection, PII leakage, agent loops, uncontrolled coordination, and lack of auditability/governance.

Product BuiltTechnicalWebsiteLinkedIn

Web3 Enabler, Inc.

by Alex Hochberger

Launched

Florida

Stage: SEED
CRYPTO BLOCKCHAINB2B SAASFINTECH+1
SaaSAPI-Based

Legacy corporate systems and financial rails do not natively connect to blockchain infrastructure.

Product BuiltRevenueRepeat FounderTechnicalWebsiteLinkedIn

Remy

by Heerr Shah

Launched
Stage: PRE SEED
DTC BRANDSCONSUMER
SaaSAPI-Based

Launching consumer products is slow and fragmented: teams spend weeks to months validating, finding suppliers, vetting packaging and managing manual processes across spreadsheets and chat.

Product Built

TrackBang AI

by Yusuf Kerim Sarıtaş

MVP

Samsun

Stage: PRE SEED
AI MLAPPLIED AIGENERATIVE AI
SaaSFreemium

DJ workflow spends hours searching tracks across platforms; current recommendation systems are listener-focused, not DJ-focused. Spotify Audio Features API shutdown fragmented metadata across sources.

Product BuiltTechnical

Wild Construct

by Brian Behm

Prototype

Austin, TX

Stage: PRE SEED
APPLIED AIGENERATIVE AI
SaaSSubscription

Productions bleed budget and time on crowds and set continuity: casting bottlenecks, wardrobe shortages, weather, reshoots, and manual continuity fixes drive significant delays and cost overruns.

TechnicalWebsite

HappyOps

by Andrew Stuntz

Beta

Washington

Stage: PRE SEED
B2B SAASVERTICAL SAASAPIS AND PLATFORMS
SaaSSubscription

Scheduling and booking software is often clunky and desktop-focused; not optimized for guides and field-based operators.

Okkanti

by Karen Laing

Launched
Stage: PRE SEED
DIGITAL HEALTHHEALTHCARE SAASB2B SAAS
SaaSUsage-Based

The maternal and infant care system faces surging demand but lacks infrastructure. Providers spend 40%+ of their time on non-billable admin work, use multiple disconnected tools, and miss significant...

Product BuiltRevenueRepeat FounderTechnical

Mostly Right

by Vu Hoang Anh

Launched
AI MLDEVELOPER TOOLSAPIS AND PLATFORMS
API-BasedSaaS

Public data is published in many messy formats with no shared schema (ZIPs, GRIB, PDFs, CSVs), making it expensive and slow for teams to build reliable ML training datasets and production endpoints.

Product BuiltRepeat FounderTechnical

Engelbert / Wise

by David Omungala

MVP
Stage: PRE SEED
AI MLLLM TOOLS AND PLATFORMSAPPLIED AI
SaaSOpen Source

Knowledge workers are drowning in data but starving for insight; existing AI tools increase speed but not insight.

Product BuiltTechnical

MissionFoundry

by Corey Martin

MVP
Stage: SEED
AI MLAPPLIED AI
SaaSServices

Difficulty converting AI prototypes into flight-ready embedded systems due to SWaP-C constraints, V&V, cybersecurity and traceability requirements.

Repeat FounderWebsite

PropAfriq

by Micah Mac Martey Mensah

MVP

Accra, Ghana

Stage: PRE SEED
PROPTECHREAL ESTATE TOOLSPROPERTY MANAGEMENT+1
SaaSSubscription

Property managers in Africa face fragmented systems, poor integration, tenant screening challenges, and inefficient maintenance tracking; significant manual workload causes lost tenants and revenue.

Product BuiltTechnical

HandSome

by Ami Kasai

Launched
Stage: PRE SEED
VERTICAL SAASAPIS AND PLATFORMSB2B SAAS
SaaSTransactional

The deck identifies significant structural issues in the Japanese Adult Video (JAV) industry, such as economic exploitation and lack of rights for performers, which are specific and urgent problems.

Dala Innovation LLC

by Williams Bawo Itsoko

MVP
Stage: PRE SEED
AI MLBIO HEALTHCAREB2B SAAS+3
SaaSSubscription

intellumia

by Sundeep Kumar

MVP

Singapore

Stage: PRE SEED
AI MLGENERATIVE AILLM TOOLS AND PLATFORMS+1
SubscriptionSaaS

Current AI suffers from context loss and stateless interactions; intellumia aims to solve by building a personal AI twin with persistent graph memory.

Repeat FounderTechnicalWebsiteLinkedIn

Sondr

by VedranBalagovic

Beta
Stage: PRE SEED
AI MLDEVELOPER TOOLSB2B SAAS
SaaSFreemium

Founders are blind to their own UX; traditional user testing is slow and costly; ~75% of new users churn in 72 hours due to first-run friction not caught by QA.

Product BuiltRepeat FounderTechnicalWebsite

Sum4All

by Craig Butler

Launched

Baltimore, MD

Stage: PRE SEED
AI INFRASTRUCTUREAPPLIED AILLM TOOLS AND PLATFORMS
SaaSSubscription

Information is captured across many tools and formats (AI chats, PDFs, notes, voice memos) and becomes hard to retrieve; AI conversations vanish when tabs close; tools are fragmented and unconnected.

Product BuiltRepeat FounderTechnicalWebsiteLinkedIn

AI Computer

by James Pogreba

Profitable
Stage: BOOTSTRAPPED
AI MLWEB3 CRYPTOB2B SAAS+4
FreemiumSaaS

ApplyStackAI

by pavan kannikanti

MVP
Stage: PRE SEED
AI MLB2B SAASEDTECH+1
SaaSFreemium

PropX

by Bar Gvili

MVP
Stage: SEED
PROPTECHAPPLIED AIREAL ESTATE TOOLS
SaaSSubscription

Land investment is a broken, fragmented system involving many intermediaries (lawyers, appraisers, surveyors, brokers, etc.), costing $10K–$15K and taking 90+ days.

Product BuiltRepeat FounderTechnicalWebsite

EHNO

by Grigoriy Kim

Beta
Stage: PRE SEED
DIGITAL HEALTHAI MLAPPLIED AI
SubscriptionUsage-Based

The deck identifies a significant problem in the addiction recovery space, highlighting the gap between treatment and long-term recovery support. It emphasizes the prolonged recovery period and the...

Info Collector

by Shadow Architect

Idea
Stage: PRE SEED
AI MLGENERATIVE AIB2B SAAS
SaaSSubscription

Decision-makers suffer from information poverty and asymmetric access; no platform supports asymmetric, request-response, information-value-oriented interaction, leading to blind spots and high costs...

Technical

Opstan

by Dmitrii Stucalschi

Launched
Stage: PRE SEED
WEB3 CRYPTOSOCIAL NETWORKSCREATOR TOOLS+1
SaaSSubscription

Creators’ identities, reach, and archives are mediated by platform operators; independently verifiable, permanent public records are not guaranteed.

Product BuiltTechnicalWebsite

RBIT

by Addison Houston

Launched
Stage: SEED
CLIMATE ENERGY SUSTAINABILITY
TransactionalServices

Post-ITC gap in affordable residential solar adoption due to phasing out of federal tax credits.

Product BuiltRevenueTechnicalWebsiteLinkedIn

ViFiX

by Anatolii Khabarov

Launched
Stage: PRE SEED
GENERATIVE AIAPPLIED AIAPIS AND PLATFORMS
SaaSSubscription

AI creation is fragmented; creators must stitch together multiple AI tools and pro software.

Product BuiltTechnicalWebsite

Ionic Desalination, Inc.

by Michael Oster

Beta
Stage: SEED
CLIMATE ENERGY SUSTAINABILITYCLEAN ENERGYOPERATIONS INFRA
Usage-BasedLicensing

Global freshwater scarcity across agriculture, industry, and cities; reverse osmosis is expensive, energy-intensive, slow to permit, and environmentally challenging.

Product BuiltRepeat FounderTechnicalWebsite

Bus Daddy LLC

by Christopher Moloney

Launched
Stage: BOOTSTRAPPED
AI MLECOMMERCE MARKETPLACESCONSUMER+1
MarketplaceTransactional

Antelope Data

by Luke Svasti

Alpha
Stage: PRE SEED
B2B SAASOPERATIONS INFRA
Usage-BasedAPI-Based

Kairo solutions

by Erik Akerstrom

Prototype
Stage: PRE SEED
PROPTECHB2B SAASAPPLIED AI
SaaSSubscription

Real estate remains highly manual (paper, Excel, PDFs, WhatsApp), leading to frequent mistakes and missed follow-ups. High agent burnout/attrition (50% quit in first year; 88% within 5 years).

Synergetics AI

by Raghu Bala

Growth
Stage: SEED
AI MLAI INFRASTRUCTUREGENERATIVE AI
SaaSAPI-Based

Lack of trust, identity and transaction rails for autonomous AI agents operating across enterprises.

Product BuiltRevenueRepeat FounderTechnicalWebsite

Romy

by Alice Bull

Beta

San Francisco, California

Stage: PRE SEED
APPLIED AIAI ML
SaaSSubscription

Builders ship products but lack the GTM system to convert those products into sustainable businesses.

Product BuiltRepeat FounderTechnicalWebsiteLinkedIn

CATALYST

by Travis Crew

Launched

Houston, Texas

Stage: BOOTSTRAPPED
AI INFRASTRUCTUREAPPLIED AIBIOTECH
SaaSSubscription

The problem is clearly defined as the challenges in quantum computing related to hardware limitations, simulation constraints, and verification issues, which prevent enterprises from running...

Quadlii Ai Inc.

by Jamie Thain

MVP

Toronto, Ontario

Stage: PRE SEED
DEVELOPER TOOLSAPIS AND PLATFORMSB2B SAAS
SaaSAPI-Based

Traditional software development is slow, expensive, and error-prone; legacy methodologies from the 1970s impede shareholder value.

Product BuiltRepeat FounderTechnicalWebsite

Capifiq

by Asim Kumar

Launched
Stage: SEED
AI MLAI INFRASTRUCTUREAPPLIED AI
Usage-BasedSaaS

Invisible AI overlays enable candidates to get answers during live interviews; existing proctoring and detection approaches miss display-layer overlays.

Product Built
Ben Wiggins

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About API & Platform Startups

Our directory includes 68 startups using the API & Platform business model. They span 42 at PRE SEED, 11 at SEED, 8 at BOOTSTRAPPED, 3 at ANGEL.

API & Platform businesses are evaluated on metrics specific to their model — including growth rates, unit economics, retention, and customer acquisition efficiency. Upload your deck for a free analysis of how your metrics compare.

Frequently Asked Questions

How many API & Platform startups are in this directory?
We currently track 68 API & Platform startups in our community. 40 have built a product, and 9 are generating revenue.
What percentage of API & Platform startups have technical founders?
54% of API & Platform startups in our directory have at least one technical co-founder, which is an important signal for investors evaluating a startup's ability to build and iterate on their product.
How can I invest in API & Platform startups?
The Founders' Group connects investors with vetted API & Platform startups. Our AI-powered matching algorithm considers sector focus, stage fit, check size, and thesis alignment. Browse our investor directory or contact us to learn more.
What metrics matter most for API & Platform startups?
Key metrics for API & Platform businesses include revenue growth, customer acquisition cost (CAC), lifetime value (LTV), retention/churn rates, and unit economics. The specific benchmarks depend on stage and sub-sector.
Where are most API & Platform startups located?
The highest concentration of API & Platform startups in our community is in Baltimore, Samsun, Bangalore. However, we work with startups from across the US and internationally.

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Ben Wiggins

Ben Wiggins

7x Founder · 1 Exit · Experienced Angel Investor · CIO Family Office

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