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Top API Developers in Bulgaria

Ratings Updated: April 2, 2026
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3 Leaders 11 Contenders

14 Companies

Country: Bulgaria

List of the Top Bulgaria API Development Services

  • Softaware Ltd. Logotype

    5.0 4 reviews
    $25,000+
    $50 - $99 / hr
    2 - 9
    Sofia, Bulgaria

    Services provided

    10% API Development
    20% AI Development
    18% Generative AI +7 services
    15% Mobile App Development
    15% Web Development
    5% AI Consulting
    5% Custom Software Development
    5% E-Commerce Development
    5% Enterprise App Modernization
    2% Blockchain

    Softaware Ltd. is a software development company renowned for its innovative solutions and commitment to client collaboration. Their services include web development and mobile app creation, with an emphasis on user-friendly design and effective communication. Reviewers consistently commend Softaware Ltd. for their flexibility, proactive approach, and successful project outcomes, with 100% positive feedback highlighting their dedication to client satisfaction and teamwork.

    See all 4 projects

    Reviews mention Easy to work with

    Clients consistently report that Softaware Ltd. is exceptionally easy to work with, highlighting their flexibility and proactive communication. One client noted the team's willingness to work during holidays to meet deadlines, emphasizing their commitment. The collaborative approach and solution-oriented mindset were praised, with feedback stating that the team felt like an extension of the client's own organization. Overall, the sentiment reflects a strong appreciation for the company's engagement and adaptability throughout the project.
    • iOS & Android App Dev for Educational Institution
      5.0 Apr 24, 2022

      We use Discord as a communication platform and what we love about Softaware is that the whole team was involved in the project. Not only as being present but being active. As a Client, we may be pretty bearable BUT we do have our specifics and expectations. We may be having questions or needing help in the late evening or during the weekends and we have always had somebody from the team is there for us on Discord, giving us a helping hand.

      Read Full Review
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    Industry Experience

    Softaware Ltd. has received positive feedback across the Financial Services and Education sectors, demonstrating expertise in website and mobile app development. Clients commend their innovative thinking, flexibility, and commitment to co-creation. In Financial Services, they successfully built user-friendly platforms, while in Education, they tailored a cross-platform app that enhances learning experiences. Overall, Softaware Ltd. is recognized for its strong communication, timely delivery, and ability to adapt solutions to meet client needs, making them a suitable partner for these industries.

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    Select Industry to see insights

    Financial services Education

    Average Project Cost Breakdown

    $10,000 to $49,000 (1)

    What Clients Have Said

    Clients have praised Softaware Ltd. for their competitive pricing, which aligns well with project budgets. One client noted that their pricing was a key factor in choosing them, while another highlighted the company's flexibility and commitment to co-creation, which enhances overall value. Overall, clients feel that Softaware Ltd. offers significant value for money, delivering quality outcomes without compromising on cost.
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    Bulgaria (1) Switzerland (1)
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  • Kodin Soft Logotype

    5.0 2 reviews
    $5,000+
    $25 - $49 / hr
    10 - 49
    Sofia, Bulgaria

    Services provided

    15% API Development
    40% Custom Software Development
    30% Web Development +2 services
    10% Mobile App Development
    5% Application Management & Support

    Kodin Soft is an API Development company specializing in API integrations and backend solutions. With a strong emphasis on timely delivery and responsiveness, 100% of reviewers highlighted their expertise in handling complex projects, especially in niche areas like space-related initiatives. Kodin Soft's alignment with client values and industry knowledge makes them a preferred choice for Application Programming Interface Development services.

    See all 2 projects
    1 of 1 API Development reviews are 5 stars
    1 new review for API Development in past 6 months
    $10,000 – $49,000 avg. project cost

    API Development PROJECT HIGHLIGHT

    API & Platform Dev & Design for Geospatial Solutions Company

    5.0 — Kodin Soft offers development and design services for a geospatial solutions company. The team is developing a satellite imagery platform, a cloud-based infrastructure, a backend, and API Read more
    Read 1 Review

    Industry Experience

    Kodin Soft has demonstrated strong capabilities in the GPS, Navigation & GIS industry, providing backend development and API integrations for geospatial solutions. Clients praise their timely delivery, excellent responsiveness, and relevant experience, particularly in space-related projects. Overall, feedback reflects a positive sentiment, highlighting their cultural fit and alignment with client values, making them a strong choice for organizations seeking expertise in geospatial technology.

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    Select Industry to see insights

    GPS, Navigation & GIS

    Average Project Cost Breakdown

    $10,000 to $49,000 (1)

    What Clients Have Said

    Kodin Soft is perceived as offering good value for cost, with clients noting their alignment in company values and relevant experience as key factors in their selection. One client emphasized the company's responsiveness and timely delivery, while another highlighted the excellent integration capabilities and overall satisfaction with the project's outcomes. Overall sentiment reflects a positive assessment of the company's pricing relative to the quality of service provided.
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  • Vigored Logotype

    5.0 5 reviews
    $10,000+
    $25 - $49 / hr
    2 - 9
    Sofia, Bulgaria

    Services provided

    10% API Development
    20% AI Development
    15% Custom Software Development +5 services
    15% Web Development
    10% DevOps Managed Services
    10% Enterprise App Modernization
    10% IT Staff Augmentation
    10% Microservices Architecture Services

    Vigored is a web development company renowned for their skill in creating custom-built WordPress sites and API Integration. Their reviews highlight a 100% positive feedback rate, emphasizing their flexibility, excellent project management, and personalized customer service, making them a highly recommended choice for web development projects.

    See all 5 projects
    1 of 1 API Development reviews are 5 stars
    1 new review for API Development in past 6 months
    $10,000 – $49,000 avg. project cost

    API Development PROJECT HIGHLIGHT

    Web Design & Development for Financial Services Company

    5.0 — Vigored has designed and developed a website for a financial services company. They've implemented a real-time integration with REDCap and transitioned the client's hosting to a new provider. Read more
    Read 1 Review

    Industry Experience

    Vigored has demonstrated expertise in the financial services industry, receiving positive feedback for their web development and branding capabilities. Clients commend their adaptability, project management, and personal touch in communication. The sentiment is overwhelmingly favorable, highlighting their ability to deliver high-quality, custom solutions and a collaborative approach. Potential clients in financial services can expect a reliable partner with a strong focus on delivering tailored web solutions and effective project management.

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    Select Industry to see insights

    Financial services

    Average Project Cost Breakdown

    $10,000 to $49,000 (1)

    What Clients Have Said

    Clients have praised Vigored for offering good value for money, with one CEO noting their pricing fit within budget and aligned with the company's values. The feedback highlights the company's adaptability, responsiveness, and excellent project management, contributing to a strong overall sentiment of satisfaction. One client emphasized their intention to engage Vigored for additional projects, indicating a high level of trust in the company's cost-effectiveness and service quality.
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  • Synergy Global Financial Solutions Ltd. Logotype

    Not yet reviewed

    $25,000+
    $50 - $99 / hr
    10 - 49
    Sofia, Bulgaria

    Services provided

    20% API Development
    20% Cloud Consulting & SI
    20% Custom Software Development +2 services
    20% Digital Engineering
    20% Web Development

    Synergy Global Financial Solutions Ltd., a cloud consulting & SI company, is located in Sofia, Bulgaria and Plovdiv, Bulgaria. The team provides cloud consulting & SI and Custom Software

    Read more
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  • WEB iMPRESSION Logotype

    Not yet reviewed

    $1,000+
    $25 - $49 / hr
    2 - 9
    Sliven, Bulgaria

    Services provided

    15% API Development
    45% Web Development
    10% Custom Software Development +5 services
    10% Mobile App Development
    5% AI Consulting
    5% AI Development
    5% E-Commerce Development
    5% Microservices Architecture Services

    WEB iMPRESSION is a web development company. They are located in Sliven, Bulgaria and have small team of experts. Their services include Web Development and API Development.

    Read more
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  • Estafet Logotype

    Not yet reviewed

    $100,000+
    $50 - $99 / hr
    50 - 249
    Sofia, Bulgaria

    Services provided

    20% API Development
    20% AI Development
    20% Application Testing +3 services
    20% Microservices Architecture Services
    10% Custom Software Development
    10% Web Design

    Estafet is a midsize custom software development firm. Launched in 2002, the team provides Custom Software Development and Artificial Intelligence.

    Read more

    Sofia, Bulgaria

    Floor 5 Vitosha Business Center 47, Blvd. "Cherni vrah" Blvd, 1407 Sofia, Bulgaria
    Sofia, Bulgaria 1407

    76 - 100

    +447779246741

    See All Locations (2)
    View Profile
  • Smart Bytes Software Logotype

    5.0 1 review
    $1,000+
    $50 - $99 / hr
    2 - 9
    Burgas, Bulgaria

    Services provided

    10% API Development
    40% Custom Software Development
    40% Web Development +1 service
    10% Mobile App Development

    Smart Bytes Software is a specialized IT services company offering custom software development and IT consulting services. Feedback from clients highlights their expertise in modernizing legacy platforms, notably using Blazor and Telerik Reporting. All reviews indicate a positive experience, with a 100% satisfaction rate, particularly praising their flexibility, timely delivery, and excellent communication skills.

    See all 1 projects

    Industry Experience

    Smart Bytes Software has demonstrated expertise in the IT Services industry, particularly in custom software development and IT consulting. Feedback highlights their strengths in modernizing legacy systems, implementing advanced technologies like Blazor and Kendo UI, and optimizing performance and maintainability. Clients commend their flexibility, timely deliveries, and excellent communication skills, showcasing a positive sentiment overall. This provider is well-suited for enterprises seeking robust IT solutions and modernization strategies.

    Read All Reviews

    Select Industry to see insights

    IT Services

    Average Project Cost Breakdown

    $50,000 to $199,999 (1)

    What Clients Have Said

    Clients have expressed satisfaction with Smart Bytes Software's cost-effectiveness and overall value. One managing partner noted their flexibility in meeting deadlines and providing additional support during critical phases, highlighting the excellent return on investment. The team's expertise and efficient communication were also praised, with no significant complaints regarding pricing or value. Overall, the sentiment indicates that clients perceive Smart Bytes as a worthwhile investment for quality software development services.
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  • SO Management Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    2 - 9
    Samokov, Bulgaria

    Services provided

    25% API Development
    25% ERP Consulting and SI
    25% Social Media Marketing +1 service
    25% Web Development

    SO Management is a social media marketing firm. They were established in 2022, and their services include Social Media Marketing and ERP consulting and SI.

    Read more
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  • QaiWare Logotype

    Not yet reviewed

    $25,000+
    $25 - $49 / hr
    10 - 49
    Sofia, Bulgaria

    Services provided

    10% API Development
    10% Application Management & Support
    10% Blockchain +7 services
    10% Custom Software Development
    10% Enterprise App Modernization
    10% IT Managed Services
    10% IT Strategy Consulting
    10% Mobile App Development
    10% Other Application Development
    10% Web Development

    QaiWare, an IT strategy consulting company, is based in Sofia, Bulgaria and Frankfurt am Main, Germany. The team offers IT strategy consulting and IT managed services.

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  • NexGen Logotype

    Not yet reviewed

    Undisclosed
    $25 - $49 / hr
    10 - 49
    Varna, Bulgaria

    Services provided

    10% API Development
    30% Custom Software Development
    10% AI Development +5 services
    10% Cloud Consulting & SI
    10% Computer Engineering
    10% Enterprise App Modernization
    10% IT Strategy Consulting
    10% Web Development

    NexGen is a Burgas, Bulgaria-based software development company. They provide Custom Software Development and IT strategy consulting and were launched in 2014.

    Read more

    Varna, Bulgaria

    45 Aleksander Dyakovich Str. 2-nd floor, office 15 9000 Varna, Bulgaria
    Varna, Bulgaria 9000

    2 - 5

    +359 884 872365

    See All Locations (2)
    View Profile
  • Websycraft Logotype

    Not yet reviewed

    $1,000+
    $50 - $99 / hr
    2 - 9
    Varna, Bulgaria

    Services provided

    10% API Development
    30% Web Development
    20% AI Development +3 services
    20% Custom Software Development
    10% E-Commerce Development
    10% Low/No Code Development

    Founded in 2020, Websycraft is a custom software development firm. The team provides Custom Software Development and Web Development and is based in Varna, Bulgaria and Wien, Austria.

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  • Wecraft Media Logotype

    Not yet reviewed

    $10,000+
    $50 - $99 / hr
    10 - 49
    Plovdiv, Bulgaria

    Services provided

    10% API Development
    20% Custom Software Development
    20% Product Design +5 services
    10% AI Development
    10% E-Commerce Development
    10% UX/UI Design
    10% Web Design
    10% Web Development

    Wecraft Media is a Product Design company. Located in Plovdiv, Bulgaria, their small team focuses on Product Design and Custom Software Development. The firm was established in 2012.

    Read more
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  • Zwerit Logotype

    Not yet reviewed

    $10,000+
    $50 - $99 / hr
    2 - 9
    Sofia, Bulgaria

    Services provided

    10% API Development
    15% Other Application Development
    10% Custom Software Development +7 services
    10% DevOps Managed Services
    10% ERP Consulting and SI
    10% IT Managed Services
    10% IT Strategy Consulting
    10% Microservices Architecture Services
    10% Web Development
    5% Application Testing

    Established in 2013, Zwerit is an Other Application Development company. The team offers Other Application Development and IT strategy consulting.

    Read more
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  • Confidence Technology Logotype

    5.0 2 reviews
    $10,000+
    $50 - $99 / hr
    50 - 249
    Свети Влас, Bulgaria

    Services provided

    10% API Development
    15% Web Development
    10% Application Testing +20 services
    10% E-Commerce Development
    10% Enterprise App Modernization
    10% Mobile App Development
    5% Blockchain
    5% Custom Software Development
    5% DevOps Managed Services
    5% Other Application Development
    2% AR/VR Development
    2% CRM Consulting and SI
    1% BI & Big Data Consulting & SI
    1% IT Managed Services
    1% IT Staff Augmentation
    1% IT Strategy Consulting
    1% IoT Development
    1% Low/No Code Development
    1% Microservices Architecture Services
    1% Robotics Process Automation
    1% UX/UI Design
    1% Wearable App Development
    1% Web Design

    Confidence Technology is a company specializing in website programming and e-commerce solutions. Their reviews highlight a commitment to innovation, attention to detail, and efficient project management. Clients noted significant improvements in site performance and user engagement. While highly satisfied overall, some clients suggested more frequent progress updates could enhance communication. Approximately 100% of the reviews reflect positive feedback on their services and outcomes.

    See all 2 projects

    Industry Experience

    Confidence Technology has demonstrated significant expertise in the Food & Beverage and IT Services industries. Clients from the Food & Beverage sector praised their web development skills, citing improved site performance and user engagement. In IT Services, clients appreciated their efficient project management and responsiveness during the development of complex applications. Overall, sentiment is positive, highlighting their commitment to innovation, attention to detail, and the ability to deliver high-quality, tailored solutions.

    Read All Reviews

    Select Industry to see insights

    Food & Beverage IT Services

    Average Project Cost Breakdown

    Less than $10,000 (2)

    What Clients Have Said

    Clients commend Confidence Technology for offering competitive pricing that aligns with their budgets, highlighting it as a significant factor in their selection. One review noted the 'good value for cost,' while another emphasized the company's 'high ratings' and 'extensive experience' contributing to their perceived value. Overall, clients expressed satisfaction with the cost-effectiveness of the services provided, indicating a strong sentiment towards the company's pricing structure.
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    Germany (1) Spain (1)
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1 Softaware Ltd.
2 Kodin Soft
3 Vigored

List of the Top 3 Bulgaria API Development Services

  1. Softaware Ltd. Logotype

    Softaware Ltd.

    $25,000+
    $50 - $99 / hr
    2 - 9
    Sofia, Bulgaria

    Ability to deliver

    30/40.0
    16.4/20 Reviews
    8.7/10 Clients & Experience
    4.9/10 Market Presence

    Service focus

    10% API Development
    90% Other
    View Profile Visit Website
  2. Kodin Soft Logotype

    Kodin Soft

    $5,000+
    $25 - $49 / hr
    10 - 49
    Sofia, Bulgaria

    Ability to deliver

    25/40.0
    16.4/20 Reviews
    4.5/10 Clients & Experience
    4/10 Market Presence

    Service focus

    15% API Development
    85% Other
    View Profile Visit Website
  3. Vigored Logotype

    Vigored

    $10,000+
    $25 - $49 / hr
    2 - 9
    Sofia, Bulgaria

    Ability to deliver

    20.4/40.0
    16.4/20 Reviews
    0/10 Clients & Experience
    4/10 Market Presence

    Service focus

    10% API Development
    90% Other
    View Profile Visit Website
  4. Synergy Global Financial Solutions Ltd. Logotype

    Synergy Global Financial Solutions Ltd.

    $25,000+
    $50 - $99 / hr
    10 - 49
    Sofia, Bulgaria

    Ability to deliver

    8.2/40.0
    0/20 Reviews
    3.6/10 Clients & Experience
    4.6/10 Market Presence

    Service focus

    20% API Development
    80% Other
    View Profile Visit Website
  5. WEB iMPRESSION Logotype

    WEB iMPRESSION

    $1,000+
    $25 - $49 / hr
    2 - 9
    Sliven, Bulgaria

    Ability to deliver

    6.8/40.0
    0/20 Reviews
    1.6/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    15% API Development
    85% Other
    View Profile Visit Website
  6. Estafet Logotype

    Estafet

    $100,000+
    $50 - $99 / hr
    50 - 249
    Sofia, Bulgaria

    Ability to deliver

    5.2/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    20% API Development
    80% Other
    View Profile Visit Website
  7. Smart Bytes Software Logotype

    Smart Bytes Software

    $1,000+
    $50 - $99 / hr
    2 - 9
    Burgas, Bulgaria

    Ability to deliver

    20.4/40.0
    16.4/20 Reviews
    0/10 Clients & Experience
    4/10 Market Presence

    Service focus

    10% API Development
    90% Other
    View Profile Visit Website
  8. SO Management Logotype

    SO Management

    Undisclosed
    $25 - $49 / hr
    2 - 9
    Samokov, Bulgaria

    Ability to deliver

    4/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4/10 Market Presence

    Service focus

    25% API Development
    75% Other
    View Profile Visit Website
  9. QaiWare Logotype

    QaiWare

    $25,000+
    $25 - $49 / hr
    10 - 49
    Sofia, Bulgaria

    Ability to deliver

    5.2/40.0
    0/20 Reviews
    0/10 Clients & Experience
    5.2/10 Market Presence

    Service focus

    10% API Development
    90% Other
    View Profile Visit Website
  10. NexGen Logotype

    NexGen

    Undisclosed
    $25 - $49 / hr
    10 - 49
    Varna, Bulgaria

    Ability to deliver

    4.6/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4.6/10 Market Presence

    Service focus

    10% API Development
    90% Other
    View Profile Visit Website
  11. Websycraft Logotype

    Websycraft

    $1,000+
    $50 - $99 / hr
    2 - 9
    Varna, Bulgaria

    Ability to deliver

    4.6/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4.6/10 Market Presence

    Service focus

    10% API Development
    90% Other
    View Profile Visit Website
  12. Wecraft Media Logotype

    Wecraft Media

    $10,000+
    $50 - $99 / hr
    10 - 49
    Plovdiv, Bulgaria

    Ability to deliver

    4/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4/10 Market Presence

    Service focus

    10% API Development
    90% Other
    View Profile Visit Website
  13. Zwerit Logotype

    Zwerit

    $10,000+
    $50 - $99 / hr
    2 - 9
    Sofia, Bulgaria

    Ability to deliver

    4/40.0
    0/20 Reviews
    0/10 Clients & Experience
    4/10 Market Presence

    Service focus

    10% API Development
    90% Other
    View Profile Visit Website
  14. Confidence Technology Logotype

    Confidence Technology

    $10,000+
    $50 - $99 / hr
    50 - 249
    Свети Влас, Bulgaria

    Ability to deliver

    22.5/40.0
    16.2/20 Reviews
    1.4/10 Clients & Experience
    4.9/10 Market Presence

    Service focus

    10% API Development
    90% Other
    View Profile Visit Website

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