unified-api
(9)
Terminal
Terminal is a universal API for telematics data in commercial trucking and fleet management. It connects to hundreds of telematics service providers - GPS, safety events, fault codes, dash-cam media, driver hours - and delivers that data in one normalized feed, so insurers, fleet software, logistics firms and fintechs can build products without wiring up hundreds of one-off integrations. Often called 'the Plaid of trucking,' the Toronto company was founded in 2023, went through Y Combinator's S23 batch, and has raised $26M to date.
Briza
Briza is a Toronto-based insurtech that started as a unified, API-first platform for small-business commercial insurance - letting agencies, brokers and software platforms quote, bind and pay for policies like BOP, GL, WC and cyber through a single integration. Founded in 2016, the company has since narrowed its focus to carrier API reliability, applying manufacturing-style engineering discipline to reduce failed submissions and slow integrations that cost carriers premium.
Kombo
Kombo is a unified API that lets B2B software companies connect to hundreds of HR, payroll, recruiting (ATS), and learning systems through a single integration. Instead of building and maintaining separate connectors to systems like Personio, BambooHR, Workday, Greenhouse, and Paychex, customers integrate Kombo once and gain access to a normalized data model and authentication layer across 300+ HR and ATS tools. Founded in 2022 and based in Berlin and New York, Kombo positions itself as the infrastructure layer for people data - from hire to retire.
StackOne
StackOne is a London-based integration platform that gives B2B SaaS companies and AI agent builders a single unified API to connect to hundreds of enterprise systems - from HR and CRM to ticketing, messaging and identity. Combining a proprietary tool-calling LLM with a real-time, privacy-first engine, it offers 200+ pre-built connectors and thousands of ready-made actions so agents can reliably and securely take actions inside the software businesses already use. Founded in 2023 by Romain Sestier and Guillaume Lebedel, the company raised a $20M Series A led by GV (Google Ventures) in May 2025 and has surpassed 1 billion API calls.
Propexo
Propexo is a Boston-based proptech startup building the unified API and data platform for multifamily real estate. Often described as 'Plaid for commercial real estate,' Propexo lets software developers and property operators connect to 130+ property management systems - like Yardi, RealPage, AppFolio, Entrata, and Buildium - through a single, normalized API and no-code sync tool. What once took teams of engineers months to build, Propexo delivers in days, with standardized data models, webhooks, and enterprise-grade security. Founded in 2022 and a Y Combinator W2023 alum, it raised a $3.3M seed round led by Prudence in October 2023.
Kinter.ai
Kinter.ai builds AI Accountants that execute the month-end financial close. Founded as Alloy Automation, an e-commerce integration platform, the company pivoted its connectivity expertise toward finance teams. Its agents proactively identify and log journal entries for accruals (payroll, prepaid, fixed assets), run cash application reconciliation, and work through the close checklist - learning on the job, scaling on demand, and costing less than traditional BPO. Kinter is trusted by global leaders including Amazon, Mastercard, and UPS, and is backed by a16z, Bain Capital Ventures, and Y Combinator.
OpenRouter
OpenRouter is a unified API gateway for large language models. Through a single OpenAI-compatible endpoint, developers can reach 400+ models from 60+ providers, with automatic routing, price comparison, and failover across vendors. It removes the need to maintain separate integrations for OpenAI, Anthropic, Google, Mistral and dozens of others, and now processes around 100 trillion tokens per month for more than 8 million users.
Rutter
Rutter is a unified API that lets B2B software read and write financial data across 60+ accounting, commerce, payments, and ads platforms - from QuickBooks and NetSuite to Shopify, Amazon, and Stripe - through a single integration. Founded in 2021 by Peter Zhou and Eric Yu, the New York company is positioning itself as the 'Plaid for commerce,' powering financial workflows like lending, AP/AR automation, supplier enablement, and agentic commerce for 100+ fintech companies including Ramp, Airwallex, and Payoneer.
Merge
Merge builds the connective infrastructure for modern SaaS and AI: one unified API that lets a product offer hundreds of HRIS, ATS, CRM, ticketing, and accounting integrations - and a newer Agent Handler that gives AI agents secure, observable access to thousands of third-party tools.