Participant Recruiting API for research platforms

Unlock direct access to Respondent’s diverse pool of over 3 million quality research participants across 150+ countries with our fast, reliable API – all from within your platform.

Trusted API Partners

The Respondent API Advantage

Quality Participants For All Methodologies

Programmatically recruit high-quality participants for any research methodology, spanning qualitative and quantitive research.

Fast and Reliable Participant Supply

Speed up research for your customers by tapping into a reliable supply of participants with advanced B2B and B2C targeting options from a diverse panel.

Connect with Ease

Leverage our rich API to integrate quickly, backed by developer-friendly API documentation and priority support. Get authenticated and start building today.

One API, all methodologies

Benchmark Studies
Focus Groups
Diary Studies
Contextual Inquiry
Ethnographic Studies
Remote Usability Testing
A/B Testing
In-depth Interviews
Concept Testing
Field Studies
Card Sorting
Customer Feedback
Desirability Studies
Tree Testing
Participatory Design
product usage boost
recruiting cost reduction
operational efficiencies

API Features


Secure access to trusted API partners with fire-walling of sensitive data.

Project Creation

Create research projects on Respondent from your interface.


Review applicants from our panel and invite those that fit researcher needs.


Authorize incentive payment; Respondent handles actual payments.


Provide calendar links for seamless scheduling of research sessions.


Communicate with applicants from the panel before and during the study.

How we recruit

1. Matching

Your targeting filters + the Respondent panel + our proprietary matching algorithm = a slate of great candidates for research.

2. Referrals

Respondent pays a top-up incentive for referrals to projects. This way, your project reaches far beyond just our panel members. 

3. Boosts

Our recruitment team works on select projects with niche requirements. Boost campaigns find participants where they hang out.


Who is the Respondent Panel API meant for?
What is the pricing for participants recruited through the API integration?
Who pays participants recruited through the API integration?
Who is a trusted partner and how does a company become a trusted partner?
How long does it take to integrate the API?
More questions? Contact us

Integrate our API today.

On demand access to our diverse 3M+ verified participants for B2B and B2C research across 150+ countries.