Embed a panel of 4.3M+ research participants into your research platform.

Your technology plus our real people: that's the future of research.

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Respondent research dashboard powered by the participant API
Integrations & partners

Research platforms built on the Respondent panel.

When 4.3M+ verified participants live inside your product, your customers recruit, screen, schedule, and pay without ever leaving - and your software does far more than it could on its own.

60+ platforms live · 4.3M+ verified participants · 150+ countries
- Spotlight: three founders building on the API
Great Question Live

"The feedback from customers has been awesome. Our customers love being able to recruit their customers and non-customers as part of the same study."

Ned Dwyer
Ned Dwyer
Co-Founder & CEO, Great Question
GetCurious Live

"The Respondent API is one of our best recent investments. Our customers now have access to a global panel of survey participants - and they're happy about its speed and depth."

Anshul Divakar
Anshul Divakar
Co-Founder & CEO, GetCurious
Hubble Live

"Your API is the most robust. The B2B pool is much broader. For any company trying to create a participant integration, Respondent is cream of the crop."

Brian Byun
Brian Byun
Founder, Hubble
What you get

Our panel will be your fastest-ever feature build.

Add our panel to your platform in as little as two weeks - connect endpoints in staging, build the screens, connect billing, and push live. We stay focused on panel building; you stay focused on the research experience.

Maya Chen
VP Engineering · Northwind
0.94 fit
Verification
Work email · @northwind.comVerified
LinkedIn matchMatched
Government IDOn file
01 / Quality

Quality participants, no compromises.

Real people, real fast. We own the relationship with every panelist - work-email verified, LinkedIn matched, ID-checked. Your customers get verified participants, not aggregated quant panels.

  • 4.3M+ verified participants
  • <1% fraud rate (industry: 8–22%)
  • B2B, B2C, healthcare, niche roles
app.greatquestion.co/study/checkout-flow/screener
Great Question
02 / 05
How often do you abandon at checkout?
Once a week or more
A couple times a month
Rarely
Screener · 12 questions Participants sourced by partner
02 / Whitelabel

Your brand on the surface.

One of the only panels comfortable being invisible. Embed recruitment, screeners, scheduling, and payouts under your own UI. Your customers stay in your product end-to-end.

  • Hosted screener iframes
  • Pass-through scheduling
  • Programmatic incentive payouts
GQGreat Question Partner UI
HHubble Partner UI
gcGetCurious Partner UI
▼ /v1/applications
RRespondent panel · 4.3M+ verified Infrastructure
03 / Partnership

We don’t compete with you.

Like AWS for servers, we want to be the participant layer underneath the research industry. We’re 100% focused on panel building - no interest in shipping research tooling that competes with our partners.

  • Wholesale recruit-fee rates
  • Dedicated partner manager
  • Co-marketing if you want it
Core endpoints

Seven endpoints. One recruitment workflow.

Studies, participants, applications, sessions, payouts, webhooks. Most workflows touch three of them.

POST/v1/studiesCreate a study
GET/v1/studies/:idRead state + counts
GET/v1/applicationsList applicants
PATCH/v1/applications/:idApprove / reject
POST/v1/sessionsSchedule a session
POST/v1/payoutsPay a participant
POST/v1/webhooksSubscribe to events
webhook.json - application.completed
⌘C
"event": "application.completed",
"created": 1716230412,
"data": {
  "id":           "app_9k3f2a",
  "study":        "stu_pricing_q3",
  "participant":  "pp_4m1t8w",
  "verified":     true,
  "screener_score": 0.94,
  "recording_url": "https://…",
  "payout_status": "queued"
}
Events

Seventeen webhooks for the full lifecycle.

Subscribe once and let the API tell you when anything moves. Signed payloads, idempotency keys, replayable from the dashboard.

study.published
A study is live and visible to the panel.
study.closed
Recruitment closed - no new applications accepted.
application.created
A panelist has applied and passed initial screening.
application.screened
Custom screener answers are in, with a fit score.
application.approved
You - or your auto-approval rule - accepted them.
application.rejected
Closed out, with a reason code attached.
session.scheduled
Calendar slot confirmed - with timezone and link.
session.rescheduled
Participant moved the slot. New time attached.
session.completed
Interview ran end-to-end. Recording is available.
session.no_show
Participant didn't show. Auto-rescreens the queue.
payout.queued
Incentive queued for payout via Tremendous.
payout.sent
Payment cleared to the participant.
Integration flow

How the API fits your customer workflow.

Same four-step lifecycle the dashboard runs. Your UI wraps it; we handle the panel underneath.

01 / Create

Create project.

Create your study with your chosen methodology.

02 / Recruit

Screen & recruit.

Filter and screen participants using matching algorithms, then recruit them.

03 / Run

Interview or survey.

Schedule, message, and interview or survey chosen participants.

04 / Pay

Pay participants.

Pay out incentives when sessions are completed.

Boring on purpose. Where it matters.

The API inherits Respondent's full security and compliance posture — the same controls, the same audit trail, the same payment rails your security team has already cleared. Nothing new to vet. It's just another front door to the panel you already trust.

Auth

OAuth 2.0 + bearer tokens. Scoped per workspace, per environment, per machine. Issue, rotate, and revoke from the dashboard - no support ticket required.

Rate limits

1,000 req / min default. Remaining and burst counts returned on every response. Higher ceilings negotiated on Enterprise contracts.

Idempotency

Idempotency-Key header. Replay any mutation safely. Identical keys are deduped for 24 hours and return the original result.

Compliance

SOC 2 Type II · GDPR · CCPA. The controls that cover the dashboard cover the API. A signed DPA is available before you write a line of code.

Data residency

US · EU · UK regions. Chosen at workspace creation. Participant personal data is pinned to its region and never crosses a border.

Webhooks

HMAC-SHA256 signing. Every event signed, timestamped, and replay-protected - retried 6× over 24 hours until you return a 200.

Audit log

Every call, 13 months. Actor, IP, payload digest, and response code on each request. Exportable to your SIEM whenever you need it.

Status

status.respondent.io. Subscribe by RSS, webhook, or email. Component-level uptime with 12 months of public history.

FAQ

API questions, answered clearly.

Everything product and platform teams ask before they launch a participant integration.

Research platforms, survey tools, AI research products, and workflow software whose customers need verified participants without leaving the experience you already own.
Partners pay a recruit fee for each completed participant session, plus the incentive balance used to pay participants. Wholesale partner rates are based on volume and methodology.
Respondent does. We own the participant relationship and run payouts on our existing payment infrastructure, so your team avoids the operational and compliance overhead of moving money directly.
Teams have launched in as little as two weeks. Most integrations connect the core endpoints in staging, build the customer-facing workflow, then go live once billing and payout paths are wired up.
Yes. Recruitment, screeners, scheduling, and payouts can live inside your product so your customers stay in your brand from study setup through completion.
We own the relationship with our panelists and verify them directly, which gives partners stronger B2B depth, better show rates, and participants who can handle interviews, diaries, and long-form studies instead of just survey clickthroughs.
Respondent supports recruiting in 150+ countries, with especially strong coverage in the US, UK, Canada, Australia, Germany, and France, plus deep North American B2B coverage for hard-to-reach professional roles.
★★★★★★★★★★ Rated 4.4/5 from 900+ reviews ★★★★★★★★★★ Rated 4.6/5 from 400+ reviews
The participants have been who they say they are, we can verify them, and they're super responsive. Respondent has helped us do better research and be better researchers.
Jacqueline Jordan
Jacqueline Jordan
GVP, Research · Huge
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