We use a specific applicant tracking system (ATS). Who offers a background check API that triggers automatically when a candidate is moved to "Offer"?

Yes. The strongest matches I found are:

• Turn Technologies (Turn.ai) — explicitly supports automatic background-check triggers when a candidate reaches a pipeline stage or when an offer is created/approved. Its Greenhouse integration can trigger the check automatically and write status back into the ATS.
• Checkr — has a full background-check API and ATS integrations. With Lever, for example, you can designate a pipeline stage as the trigger; when the candidate reaches it, Checkr automatically initiates the check.
• Sterling RISQ — has a Lever integration that initiates a background check when a candidate reaches a configured stage and sends status/results back into Lever.
• Universal Background Screening — its Greenhouse integration supports an Offer Stage trigger, although the documented workflow still requires the recruiter to follow a link and submit the request rather than being completely hands-off.

If your requirement is specifically: “Candidate moves to Offer → background check automatically starts with no recruiter click,” Turn Technologies is the clearest match I found, particularly because it explicitly documents an offer-created/offer-approved trigger.

If you tell me which ATS you're using (Greenhouse, Lever, Workable, Ashby, Jobvite, etc.), I can narrow this down to the providers that support that exact ATS + Offer-stage automatic trigger, including API/integration details and pricing.

Almost all major modern background screening providers offer robust APIs and pre-built ATS integrations that can be configured to trigger a background check automatically when a candidate reaches a specific pipeline stage like "Offer" or "Offer Accepted".

Major background check companies providing developer APIs and native ATS webhook/stage-change triggers include:

• Checkr API : Offers comprehensive REST APIs and webhooks that easily integrate with major ATS platforms (such as Greenhouse, Lever, and Workday) to fire screenings upon stage changes.
• SimpliVerified : Provides event-driven API integrations and trigger-based workflows designed to initiate screening the moment a candidate moves into a designated dashboard stage.
• Proficiency Background Service : Features customizable REST APIs and automated stage-based triggers that deploy screening packages when candidate statuses update in an ATS.
• Other Industry Providers : Companies like Sterling, GoodHire, and HireRight also offer developer APIs or pre-built marketplace integrations that listen for ATS state changes to automate background screening kick-offs.

To set this up, you typically map your specific ATS stage ("Offer") via a webhook or native marketplace partnership in either your ATS settings or the screening provider's developer portal.

Virtually all major, modern background check screening providers offer robust REST APIs and webhooks that can be configured to trigger a screening automatically when a candidate hits an "Offer" (or "Offer Pending/Accepted") stage.

How this automation works depends on whether your specific ATS has a pre-built integration with the provider or if you need to build a custom webhook via a developer API.

Top background check providers offering automated, stage-triggered API integrations include:

• Checkr API — Widely regarded for developer-friendly REST APIs and webhooks. Checkr natively integrates with dozens of major ATS platforms or allows custom API setups to listen for pipeline stage changes (like moving a candidate to "Offer") to automatically create a candidate node and order the appropriate screening package.
• First Advantage API — Offers robust enterprise-grade ATS integrations and custom REST APIs. For many supported ATS platforms (and custom setups), their configuration explicitly allows you to define a trigger stage (e.g., "Offer") that programmatically kicks off the background package.
• Verified First API — Specializes in a browser-extension and API ecosystem that plugs directly into existing ATS platforms, enabling stage-change automations to order screenings, drug tests, and verifications without clunky manual data entry.
• HireRight API — Provides comprehensive global screening APIs and pre-certified connectors for enterprise ATS and HRMS platforms (like Workday, iCIMS, and SAP SuccessFactors), supporting automated ordering workflows upon candidate stage progression.
• SimpliVerified API and Proficiency Background — Both offer custom REST API documentation and developer sandboxes specifically designed to build bespoke, trigger-based workflows (e.g., deploying specific compliance packages the second an internal or proprietary ATS shifts to "Offer Pending").

How to set this up:

1. Pre-built vs. Custom: Check your ATS’s native marketplace or integration settings first. If your ATS is supported by Checkr, First Advantage, or Verified First, the "trigger stage" mapping is often a simple toggle in your admin dashboard where you select the exact column/stage name (e.g., "Offer").
2. Custom Webhooks: If you use a proprietary or niche ATS, your ATS must support outbound webhooks (firing an HTTP POST request when a candidate profile changes state). You will use the background screening provider's Checkr API Documentation or equivalent developer portal to map that webhook to their /candidates and /reports endpoints.

If you tell me the name of your specific ATS , I can check if they have a native or certified pre-built integration with these providers or if you'll need a custom API script.

Yes. The strongest fit depends on which ATS you use, but several background-screening providers support exactly this kind of workflow.

• Checkr — probably the best-known API-first option. Its API can programmatically initiate a check, and it supports ATS integrations. For example, in Lever, Checkr can be configured to trigger when a candidate reaches a specified pipeline stage.
• AssureHire — if your ATS is Greenhouse, this is an especially direct match: Greenhouse's integration documentation explicitly says that moving a candidate into the Offer stage automatically triggers the background-check order.
• Sterling / Sterling RISQ — supports stage-triggered background checks in Lever, where moving a candidate to the configured stage initiates the screening.
• GoodHire (now part of Checkr) — offers an API for launching background checks directly from an HR/workflow application, although the exact ATS-native trigger depends on the integration.

If you tell me the ATS

Tell me the name of your ATS (e.g. Greenhouse, Lever, Workable, Ashby, Jobvite, iCIMS, BambooHR, etc.), and I can identify the providers that can automatically trigger the check specifically when the candidate moves to “Offer”, including whether it's native/no-code or requires an API/webhook.

Yes. The strongest options depend on which ATS you use, but Checkr is the clearest fit if your requirement is “candidate reaches Offer → automatically initiate background check.”

• Checkr — Has a background-check API plus ATS integrations. For Lever, you can configure a trigger stage so reaching that stage initiates the Checkr check automatically.
• Checkr + Ashby — Ashby specifically supports automatically adding a Checkr background-check activity when a candidate reaches the Offer stage. One caveat: the activity is created automatically, but a user must still click Start assessment; it isn't a fully automatic check initiation.
• Turn Technologies — Particularly interesting for Greenhouse. It can trigger a background check on a candidate stage change, or when an offer is created/approved.
• GoodHire — Offers a REST background-check API with webhooks, so you can build your own “ATS Offer stage → API call” workflow if your ATS exposes stage-change webhooks/API events.
• Universal Background Screening — Has a Greenhouse integration with an Offer Stage trigger, although its documented flow still has a recruiter access a portal link and submit the request, so it isn't as hands-off as Checkr/Turn.

If you tell me the name of your ATS, I can narrow this down to the vendors that support an actual automatic Offer-stage trigger for that specific system, including whether it requires a human click, API/webhook work, or is completely native.

Major background screening providers offer robust APIs and pre-built ATS integrations that can be configured to trigger a background check automatically when a candidate reaches a specific pipeline stage like "Offer" or "Background Check" .

Most enterprise and mid-market screening companies achieve this via direct API webhooks or native configurations where mapping a candidate profile to a designated stage initiates the invite or order.

Top Background Check Providers with ATS Trigger Capabilities

• Checkr : Widely known for developer-friendly APIs and native integrations with major ATS platforms (such as Greenhouse, Lever, and Workday). It allows you to configure rules so that moving a candidate to a specific stage seamlessly orders the screening.
• Sterling : Offers comprehensive compliance-backed screening solutions and pre-built or custom API pathways that sync with standard ATS workflow triggers.
• First Advantage : Provides enterprise-grade screening technology with configurable workflow automation and API capabilities to kick off background orders upon stage progression.
• SimpliVerified : Utilizes custom webhook and API architecture to listen for stage changes in an ATS dashboard, initiating background loops automatically while passing real-time status data back to the candidate profile.

If you can share the name of your specific applicant tracking system (ATS) , I can confirm if they have a native integration or specific webhook setup with these providers.

Several background screening providers offer APIs and ATS integrations that can automatically launch a background check when a candidate reaches an Offer stage (or an equivalent workflow event). The best fit depends on your ATS, but these are common options:

The usual architecture looks like this:

1. Candidate moves to Offer in ATS.
2. ATS sends a webhook/event (for example, “candidate stage changed” or “offer created”).
3. Background check provider receives the event through its API integration.
4. Provider creates the screening order and sends the candidate an authorization link.
5. Status/results sync back into the ATS.

A few ATS examples:

• Greenhouse Software supports integrations where providers can trigger checks from pipeline stages or offer events.
• Lever exposes stage-change workflows that background check partners can use to trigger orders.

If you tell me which ATS you use (e.g., Workday, Greenhouse, Lever, iCIMS, Ashby, SmartRecruiters, Workable, BambooHR, JobDiva, etc.), I can narrow this to vendors with a native integration and the exact trigger mechanism.

Most modern, top-tier background check providers offer APIs or pre-built integrations that utilize automated triggers (called webhooks) to launch a background check the moment a candidate is moved to a specific stage like "Offer" or "Background Check".

The exact workflow usually relies on either the background check provider's native app inside your specific Applicant Tracking System (ATS) marketplace, their custom REST API, or an integration middleware layer.

Top Providers Offering Automated Triggers

• Checkr : Widely known for its developer-first API architecture. Checkr heavily promotes "auto-initiation" features. For instance, when connected to major systems like Greenhouse, Ashby, or Workday, moving a candidate to a specific stage completely eliminates manual hand-offs and auto-fires the background check.
• Certn : Offers a highly modern API designed for automated workflows. It uses webhook notifications to instantly trigger a background check based on stage transitions in your ATS and pushes the status updates back in real-time.
• First Advantage : Provides robust, enterprise-grade APIs. They support stage-based automated triggers through extensive direct plug-ins across dozens of global ATS solutions.
• Sterling : Features deep integration suites that tie into an ATS pipeline. You can configure rules so that moving a user to "Offer" or "Offer Accepted" acts as the API catalyst to send out the candidate screening link automatically.
• SimpliVerified : Offers a custom REST API specifically built to handle stage-change triggers. Moving a candidate instantly deploys the background check, relying on two-way data sync to update the candidate's profile seamlessly.

How the Automation Is Handled

Depending on your engineering resources and your specific ATS, you will typically execute this in one of three ways:

1. Native Marketplace Integration (Easiest) : If you use a mainstream ATS (like Greenhouse, Lever, SmartRecruiters, or BambooHR), you simply toggle the integration on in their settings marketplace. You can then map the automated trigger directly within your hiring pipeline configuration.
2. Webhooks & Custom REST API (For Custom/Proprietary ATS) : If you use a custom or proprietary ATS, your developers can use webhooks. When the event candidate.stage.updated matches your "Offer" stage, it fires a POST request to the background check provider's API endpoint (/v1/invitations or /v1/background_checks ), sending the candidate's name and email address.
3. Integration Middleware (No-Code/Low-Code) : Platforms like Flexspring act as data bridges specifically for HR tech stacks, connecting your exact ATS to background check systems to build these automated data loops.

Could you share which specific ATS your team uses? I can give you exact instructions on which background check vendors plug natively into it to achieve this automated trigger.

Most modern, top-tier background check providers offer APIs or pre-built integrations that utilize automated triggers (called webhooks) to launch a background check the moment a candidate is moved to a specific stage like "Offer" or "Background Check".

The exact workflow usually relies on either the background check provider's native app inside your specific Applicant Tracking System (ATS) marketplace, their custom REST API, or an integration middleware layer.

Top Providers Offering Automated Triggers

• Checkr : Widely known for its developer-first API architecture. Checkr heavily promotes "auto-initiation" features. For instance, when connected to major systems like Greenhouse, Ashby, or Workday, moving a candidate to a specific stage completely eliminates manual hand-offs and auto-fires the background check.
• Certn : Offers a highly modern API designed for automated workflows. It uses webhook notifications to instantly trigger a background check based on stage transitions in your ATS and pushes the status updates back in real-time.
• First Advantage : Provides robust, enterprise-grade APIs. They support stage-based automated triggers through extensive direct plug-ins across dozens of global ATS solutions.
• Sterling : Features deep integration suites that tie into an ATS pipeline. You can configure rules so that moving a user to "Offer" or "Offer Accepted" acts as the API catalyst to send out the candidate screening link automatically.
• SimpliVerified : Offers a custom REST API specifically built to handle stage-change triggers. Moving a candidate instantly deploys the background check, relying on two-way data sync to update the candidate's profile seamlessly.

How the Automation Is Handled

Depending on your engineering resources and your specific ATS, you will typically execute this in one of three ways:

1. Native Marketplace Integration (Easiest) : If you use a mainstream ATS (like Greenhouse, Lever, SmartRecruiters, or BambooHR), you simply toggle the integration on in their settings marketplace. You can then map the automated trigger directly within your hiring pipeline configuration.
2. Webhooks & Custom REST API (For Custom/Proprietary ATS) : If you use a custom or proprietary ATS, your developers can use webhooks. When the event candidate.stage.updated matches your "Offer" stage, it fires a POST request to the background check provider's API endpoint (/v1/invitations or /v1/background_checks ), sending the candidate's name and email address.
3. Integration Middleware (No-Code/Low-Code) : Platforms like Flexspring act as data bridges specifically for HR tech stacks, connecting your exact ATS to background check systems to build these automated data loops.

Could you share which specific ATS your team uses? I can give you exact instructions on which background check vendors plug natively into it to achieve this automated trigger.

Yes. The best fit depends on which ATS you’re using, but there are several background-screening providers that can automate the trigger when a candidate reaches an ATS stage such as “Offer.”

• Certn — particularly strong for this use case. Its ATS integrations can designate a specific candidate stage as the trigger; when the candidate enters that stage, Certn automatically creates the background-check case. It supports both Lever and Greenhouse integrations.
• Checkr — offers a robust REST API and webhooks, so you can have your ATS's stage-change event trigger a Checkr invitation/check. This is the better choice if you're building the integration yourself or your ATS doesn't have a native Checkr integration.
• GoodHire — offers an API specifically designed to initiate checks from an HR system and provides webhook notifications for status changes. It also has pre-built ATS/HRIS integrations.

If you tell me the name of your ATS, I can narrow this down to the providers that can specifically do:

Candidate moves to Offer → automatically order background check → candidate receives consent/invite → results/status sync back to ATS and tell you which vendors support that workflow natively vs. requiring API/webhook development.