Best API Development & Integration Agencies

Aegeantic is based in Izmir, Turkey, building AI platforms, product engineering, system integrations and commerce and mobile apps.

Appar Technologies is based in Taipei, Taiwan, offering AI integration, enterprise AI, Redmine development, backend APIs and custom software outsourcing since 2016.

Shopware 6 and e-commerce development: new stores, relaunches, custom extensions and integrations. PHP/Symfony modernisation for ERP, PIM, CRM and microservices, plus practical AI automation, product-data workflows and RAG. Ongoing technical support available.

Expertizo is a software engineering and digital solutions company specializing in AI development, web and mobile app development, blockchain, ecommerce, and business automation. We help startups and businesses transform ideas into scalable, secure, and user-friendly digital products.

Deorwine is a software development company that builds custom web, mobile, AI, SaaS, and business software solutions. What makes us different is our focus on understanding each client’s business needs and delivering scalable, user-friendly, and practical technology solutions that support long-term g

Tg Apps builds mobile apps, web platforms, CRM systems and backend APIs. We help businesses launch digital products, recover stalled applications and extend development teams, with Flutter expertise, AI integrations and ongoing support. Based in Brazil, serving clients internationally.

NextGenSoft is a leading AI Development Company and a Registered AWS Select Tier Partner, Claude Partner Network member, and ISO/IEC 27001:2022-certified organization, helping startups, enterprises, and growing businesses turn emerging AI technologies into measurable business outcomes.

Equaleyes is based in Ljubljana, Slovenia, building payment integrations, digital banking infrastructure, process automation and enterprise product engineering.

Siftia is listed in Cartago, Costa Rica, building healthcare data products, FHIR interoperability, health cloud solutions and data engineering.

Xtudia is based in Santo Domingo, Dominican Republic, building custom software, APIs and microservices, mobile apps, cloud and data engineering and legacy modernization.

Particular Presence Technologies is based in Kingston, Jamaica, offering application modernisation, AI automation, cloud architecture, AWS and API integration.

Smartcode Technologies is based in Kilimani, Nairobi, Kenya, building fintech, API gateway, core banking and integration software for banks, SACCOs and insurers.

THE TISA is an AI-driven software development company that helps businesses transform ideas into intelligent software solutions. We specialize in AI automation, AI agents, SaaS platforms, and custom software development tailored to business needs. As a trusted AI Software Solutions Company, we build

CodeFirst provides UK-wide software maintenance, legacy modernisation and fixed-price bespoke software development. Services include .NET development, SQL Server support, Access database maintenance, system integration and cloud migration. Birmingham office: 43 Temple Row, B2 5LS.

Software development company with deep logistics expertise. DPIIT-recognised team in Ahmedabad building custom software, web & mobile apps, SaaS and integrations; specialists in TMS, WMS, FMS and transport software. Makers of iFleetify FMS and iLogitix TMS.

Elinext is an AI agent development company building production-ready enterprise AI agents, multi-agent systems, RAG/LLM solutions, and agentic workflows. Our AI Hub has delivered 150+ AI projects and 15+ agentic flows across healthcare, finance, and enterprise operations.

NALO Solutions is based in Accra, Ghana, offering bulk SMS, USSD, voice, payment solutions and software and app development since 2011.

Flux Intelligent is an AI agency in Casablanca, Morocco: AI agents, multilingual chatbots, business process automation, CRM integration and API workflows.