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Top API Developers in New York City

Ratings Updated: April 1, 2026

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6 Leaders 15 Contenders

7 Companies

Country: United States

State: New York

City: New York City

API Type: OPEN API

List of the Top New York City API Development Services

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Base Two

5.0 2 reviews

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Verified

$25,000+

$150 - $199 / hr

10 - 49

Jersey City, NJ

Services provided

10% API Development

45% Custom Software Development

15% Web Development +5 services

10% Mobile App Development

5% Application Management & Support

5% E-Commerce Development

5% UX/UI Design

5% Web Design

Base Two is a technology consulting firm specializing in e-commerce platform development and ERP systems integration. Reviews highlight their expertise and adaptability, with measurable outcomes such as an 80% performance increase and 80% drop in customer complaints during peak sales events. While praised for their professionalism, there's room for improvement in documentation processes as systems mature.

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Industry Experience

Base Two has demonstrated strong expertise in the eCommerce industry, particularly in enhancing platform stability and performance for high-volume operations. Clients, such as Earthley, reported an 80% increase in website load performance and a significant reduction in customer complaints. Their ability to unify B2B and B2C operations and integrate complex systems has garnered positive sentiment, indicating their proficiency in managing intricate eCommerce projects. This provider is well-suited for companies focusing on scalable eCommerce solutions.
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Average Project Cost Breakdown

What Clients Have Said
Clients generally perceive Base Two as offering strong value for money, particularly highlighted by a significant 80% performance increase and 40% reduction in support overhead post-implementation. One client noted the impressive scalability and reliability during peak events, directly contributing to increased customer trust. However, some feedback indicated a desire for improved documentation processes as the project evolved, suggesting room for enhancement in long-term engagement structures. Overall, the sentiment reflects a positive assessment of cost-effectiveness and project outcomes.
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Jersey City, NJ

74 Maple Street
Jersey City, NJ 07304
1

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Blood & Treasure, LLC

4.8 4 reviews

$50,000+

$50 - $99 / hr

10 - 49

New York, NY

Services provided

10% API Development

20% IT Managed Services

20% IT Strategy Consulting +5 services

10% AR/VR Development

10% Custom Software Development

10% DevOps Managed Services

10% Mobile App Development

10% Web Development

Blood & Treasure, LLC is a company specializing in web service development and API solutions, particularly in streamlining project management and enhancing data capabilities. The reviews highlight their industry expertise, responsiveness, and flexibility, with approximately 90% of feedback being positive. However, 10% of reviewers noted challenges with billing transparency and cost estimation.

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Reviews mention Understands their clients' needs
Clients consistently commend Blood & Treasure, LLC for their deep understanding of project requirements and user needs. One CEO highlighted their impressive ability to grasp the core problem and deliver a solution that maximizes end-user impact. Similarly, the Director of Client Services noted their flexibility and responsiveness to real-time needs, appreciating their industry knowledge and efforts to educate clients. Overall, the sentiment reflects a strong alignment with client objectives and a commitment to delivering value.

Mobile App Dev & UI/UX Design for Corporate Training Company

5.0 Apr 30, 2024

They were very flexible and always responsive to our end users' needs. The ability to understand the problem we were solving, and develop platform to deliver end user value and impact. Have been very impressed with the whole team, their customer focus led approach.
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Web-Based Project Management App for Grants Consulting Firm

4.5 Feb 8, 2024

B&T has been very responsive to our needs, responding in real-time for the most part. They provide meaningful and impactful recommendations, even outside of the project scope. They are patient and have taken the time to educate and understand.
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Morristown, New Jersey (1) New York City, New York (1) San Francisco, California (1)

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Unknown avg. project cost for API Development services in New York City

API Development project highlight

Web-Based Project Management App for Grants Consulting Firm
4.5 — A grant research, consulting, and administration firm hired Blood & Treasure, LLC to develop a web-based application. The goal is to improve project management, staff, organization, data Read more
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Review Rating from Clients

4.5/5.0

Quality

4.3

Schedule

4.3

Cost

5.0

Willing to Refer

5.0

In Morristown, New Jersey, clients highlight Blood & Treasure's proficiency in creating custom web applications for government and consulting firms. Their team offers valuable guidance, technical skill, and flexible support, with some room for improvement in billing transparency and responsiveness.
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Coder Crew

Not yet reviewed

$5,000+

$25 - $49 / hr

10 - 49

Brooklyn, NY

Services provided

10% API Development

15% UX/UI Design

15% Web Development +6 services

10% AR/VR Development

10% Blockchain

10% Custom Software Development

10% DevOps Managed Services

10% E-Commerce Development

10% Mobile App Development

Coder Crew is an user experience design agency. Their team is based in Brooklyn, New York and Lahore, Pakistan and focuses on UX/UI Design and Web Development.
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Convertec LLC

Not yet reviewed

$5,000+

$150 - $199 / hr

2 - 9

New York, NY

Services provided

20% API Development

20% Custom Software Development

20% E-Commerce Development +2 services

20% Mobile App Development

20% Web Development

Convertec LLC, a software development firm, is headquartered in New York, New York and Melbourne, Australia. Launched in 2023, the team focuses on Custom Software Development and Web Development.
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I Verve Inc

4.2 9 reviews

$5,000+

$50 - $99 / hr

50 - 249

Edison, NJ

Services provided

10% API Development

20% Custom Software Development

15% AI Development +6 services

15% Enterprise App Modernization

10% DevOps Managed Services

10% Mobile App Development

10% Web Design

5% Blockchain

5% IoT Development

I Verve Inc is a technology company offering comprehensive API Development Services, including RESTful API Development and Web Service Development. Reviews reflect a 100% positive experience, emphasizing their solid technical expertise, effective project management, and excellent customer service. Clients appreciate their ability to deliver projects on time and adapt to changing requirements efficiently.

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Reviews mention Exceptional performance
Clients have consistently praised I-Verve INC for their exceptional performance and responsiveness. One client noted that they delivered a crucial website feature within a week, significantly faster than previous suppliers. They have been described as 'nice people to work with' and 'above par compared to everyone else,' highlighting their effective communication and project management. Their SEO results were notably impressive, achieving in three months what other agencies took a year to accomplish.

Web Dev and Continued Maintenance for Fashion Site

5.0 Nov 8, 2017

The SEO results they got in 3 months are equivalent to results I have seen from other agencies in the span of a year. They are excellent. I am very happy with the speed and how inexpensive it is to work with them. Overall, they have been very consistent in their deliverables. They deliver, and their performance is really above par compared to everyone else.
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Industry Experience

I Verve Inc has demonstrated expertise across multiple industries, including Transportation, Agriculture, Education, Software, Arts, Hospitality, Retail, and Design. Feedback highlights their strengths in mobile app enhancement, website development, and custom software solutions, with notable improvements in performance, user experience, and customer satisfaction. Overall sentiment is positive, particularly in Transportation, Agriculture, and Software, where clients commend their technical proficiency and project management capabilities, making them an ideal partner for similar projects.
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Transportation Agriculture Education Software Arts, entertainment & music Hospitality & leisure Retail Design

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Average Project Cost Breakdown

$10,000 to $49,000 (4) Less than $10,000 (3)

What Clients Have Said
Clients consistently highlight I Verve Inc's competitive pricing and value for money across various projects. For instance, one client noted their selection was due to 'good value for cost,' while another emphasized that their pricing 'fit our budget.' Overall, the sentiment reflects satisfaction with the cost-effectiveness of the services provided, with several clients appreciating the quality of work relative to the investment made, suggesting a strong alignment of value and pricing.
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United States (4) Brazil (1) Canada (1) Germany (1) South Africa (1)

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Heavenly Technologies

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

New York, NY

Services provided

20% API Development

20% Cloud Consulting & SI

20% Custom Software Development +2 services

20% Mobile App Development

20% Web Development

Founded in 2013, Heavenly Technologies is a cloud consulting & SI company. The small team provides cloud consulting & SI and Custom Software Development.
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API Wizard

Not yet reviewed

Undisclosed

Undisclosed

2 - 9

Stamford, CT

Services provided

50% API Development

25% Cloud Consulting & SI

25% ERP Consulting and SI

API Development company API Wizard was founded in 2010. The firm focuses on API Development and cloud consulting & SI, and is small.
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Ability to deliver

Focus

Proven

Market Leaders

Emerging

Niche

Clutch Leaders Matrix

Rollover to see company insights or click a company below for more details.

1 Invowork

2 Boomdevs

3 Two Bit Solutions LLC

4 Zertain

5 Blood & Treasure, LLC

6 Cogtix

A Clutch Leaders Matrix provides a broad view of the top-performing companies in a particular service or location. Each company featured in a Leaders Matrix is evaluated based on Focus and Ability to Deliver. The size of each circle indicates that company’s size.

By using verified reviews, focused service details, and real project data, the Leaders Matrix highlights companies that consistently deliver and stand out from the rest. Each company’s position is based on how well they focus on a service area and how consistently they deliver results, helping you make informed, confident decisions. Learn More

Focus (x-axis)

Focus accounts for a company’s specialization within a certain service.

Ability to Deliver (y-axis)

Ability to Deliver considers three criteria:

Client feedback and reviews
Work experience and previous projects
Market presence and reputation in the industry

List of the Top 6 New York City API Development Services

Invowork

$5,000+

$25 - $49 / hr

10 - 49

New York, NY

Ability to deliver

30.3/40.0

16.4/20 Reviews

9.9/10 Clients & Experience

4/10 Market Presence

Service focus

10% API Development

90% Other

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Boomdevs

$5,000+

$25 - $49 / hr

10 - 49

New York, NY

Ability to deliver

25.2/40.0

17.2/20 Reviews

4/10 Clients & Experience

4/10 Market Presence

Service focus

10% API Development

90% Other

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Two Bit Solutions LLC

$5,000+

$150 - $199 / hr

2 - 9

Brooklyn, NY

Ability to deliver

24.9/40.0

16.4/20 Reviews

4.5/10 Clients & Experience

4/10 Market Presence

Service focus

10% API Development

90% Other

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Zertain

$10,000+

$200 - $300 / hr

50 - 249

New York, NY

Ability to deliver

23/40.0

16.8/20 Reviews

2.2/10 Clients & Experience

4/10 Market Presence

Service focus

15% API Development

85% Other

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Blood & Treasure, LLC

$50,000+

$50 - $99 / hr

10 - 49

New York, NY

Ability to deliver

22.9/40.0

15.8/20 Reviews

2/10 Clients & Experience

5.2/10 Market Presence

Service focus

10% API Development

90% Other

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Cogtix

$10,000+

< $25 / hr

50 - 249

New York, NY

Ability to deliver

22.6/40.0

16.2/20 Reviews

1.4/10 Clients & Experience

4.9/10 Market Presence

Service focus

10% API Development

90% Other

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Coder Crew

$5,000+

$25 - $49 / hr

10 - 49

Brooklyn, NY

Ability to deliver

14.3/40.0

0/20 Reviews

9.7/10 Clients & Experience

4.6/10 Market Presence

Service focus

10% API Development

90% Other

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Siftia

$10,000+

$50 - $99 / hr

10 - 49

New York, NY

Ability to deliver

27/40.0

16.6/20 Reviews

5.5/10 Clients & Experience

4.9/10 Market Presence

Service focus

15% API Development

85% Other

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Rimes Technologies

$1,000+

Undisclosed

250 - 999

New York, NY

Ability to deliver

5.8/40.0

0/20 Reviews

0/10 Clients & Experience

5.8/10 Market Presence

Service focus

20% API Development

80% Other

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Base Two

$25,000+

$150 - $199 / hr

10 - 49

Jersey City, NJ

Ability to deliver

22.5/40.0

17.2/20 Reviews

0/10 Clients & Experience

5.3/10 Market Presence

Service focus

10% API Development

90% Other

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Switchboard

$5,000+

$150 - $199 / hr

2 - 9

New York, NY

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

50% API Development

50% Other

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Cryptex Technologies

$25,000+

$25 - $49 / hr

10 - 49

New York, NY

Ability to deliver

5.5/40.0

0/20 Reviews

0/10 Clients & Experience

5.5/10 Market Presence

Service focus

25% API Development

75% Other

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TRUEPREDiCT

$5,000+

$25 - $49 / hr

50 - 249

Brooklyn, NY

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

30% API Development

70% Other

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Convertec LLC

$5,000+

$150 - $199 / hr

2 - 9

New York, NY

Ability to deliver

5.8/40.0

0/20 Reviews

0/10 Clients & Experience

5.8/10 Market Presence

Service focus

20% API Development

80% Other

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redirect.pizza

$1,000+

$100 - $149 / hr

2 - 9

New York, NY

Ability to deliver

5.3/40.0

0/20 Reviews

0/10 Clients & Experience

5.3/10 Market Presence

Service focus

25% API Development

75% Other

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Redemptive Studios

$5,000+

Undisclosed

10 - 49

Brooklyn, NY

Ability to deliver

4.6/40.0

0/20 Reviews

0/10 Clients & Experience

4.6/10 Market Presence

Service focus

20% API Development

80% Other

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Haiman Resources Consulting

$1,000+

$300+ / hr

10 - 49

East Orange, NJ

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

20% API Development

80% Other

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Horizon Plus

$5,000+

$25 - $49 / hr

10 - 49

Queens, NY

Ability to deliver

4.9/40.0

0/20 Reviews

0/10 Clients & Experience

4.9/10 Market Presence

Service focus

10% API Development

90% Other

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Appxylo

$1,000+

$25 - $49 / hr

2 - 9

New York, NY

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

20% API Development

80% Other

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I Verve Inc

$5,000+

$50 - $99 / hr

50 - 249

Edison, NJ

Ability to deliver

23.4/40.0

13.8/20 Reviews

4/10 Clients & Experience

5.6/10 Market Presence

Service focus

10% API Development

90% Other

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Fruition Services

$1,000+

Undisclosed

10 - 49

New York, NY

Ability to deliver

4/40.0

0/20 Reviews

0/10 Clients & Experience

4/10 Market Presence

Service focus

15% API Development

85% Other

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