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Immigration Rule Engine API
A developer-facing API that validates sponsorship records, salary thresholds, and deadline logic could power lawtech, HR, and vertical SaaS products that do not want to maintain UK immigration rules internally. The value is recurring infrastructure revenue from a difficult, regulation-heavy rules layer.
Why this matters
You run a product that touches hiring, immigration, or compliance, and your customers keep asking for sponsor-licence checks that your current system cannot provide. Building the rules yourself means translating policy into code, maintaining updates, and handling edge cases that can expose your customers to major risk. The alternative is ignoring the need or bolting on a weak feature set that fails in real-world use. A dedicated rule engine lets you add reliable validation and deadline logic without turning your product team into immigration specialists.
- · Built for HR software vendors, recruitment platforms, immigration workflow tools, and internal enterprise engineering teams that need compliant validation without building the rule logic themselves..
- · Most likely monetization: SaaS subscription.
The Pain · Narrative
You run a product that touches hiring, immigration, or compliance, and your customers keep asking for sponsor-licence checks that your current system cannot provide. Building the rules yourself means translating policy into code, maintaining updates, and handling edge cases that can expose your customers to major risk. The alternative is ignoring the need or bolting on a weak feature set that fails in real-world use. A dedicated rule engine lets you add reliable validation and deadline logic without turning your product team into immigration specialists.
Score Breakdown
Market Signal
Go-to-Market
Product managers or engineering leads at HR, recruitment, and compliance software companies serving UK employers with sponsored workers.
Hundreds to a few thousand realistic B2B software buyers in the UK and adjacent markets.
cold outbound
$499/month
3 pilot integrations or signed LOIs from software vendors within 30 days
MVP Scope · 1–2 weeks
- Define a minimal JSON schema for worker, role, salary, and dates
- Implement core validation endpoints for salary thresholds and occupation-code mapping
- Create a rules versioning system with effective dates
- Write human-readable fail reasons returned by the API
- Publish basic API docs with sample requests and responses
- Add deadline-calculation endpoints for key reporting clocks
- Build webhook notifications for rule changes and validation events
- Create dashboard usage logs and API key management
- Ship a sandbox environment with test cases for edge conditions
- Start pilot integration with one design partner and collect failure examples
Differentiation
Why This Might Fail
Self-rebuttal — the most important trust signal
- 1Potential customers may prefer a complete application rather than an infrastructure component they still need to integrate.
- 2Maintaining legal and policy accuracy as an API business can become expensive relative to early revenue.
- 3A small number of software buyers may not support a standalone platform unless the company expands into additional jurisdictions.
Evidence Summary
How AI synthesized this insight — no verbatim quotes
The conversation showed strong demand for precise rule logic, especially salary and timing checks that generic systems miss. That pattern suggests an underlying infrastructure need beyond one end-user application. If multiple products need the same regulatory logic, a reusable API can capture value from vendors that want compliance capability without becoming domain experts themselves.
Action Plan
Validate this opportunity before writing code
Recommended Next Step
Build
Strong demand signals detected. Real pain, real willingness to pay — start building an MVP.
Landing Page Copy Kit
Ready-to-paste copy based on real Reddit community language — no editing required
Headline
Immigration Rule Engine API
Sub-headline
A developer-facing API that validates sponsorship records, salary thresholds, and deadline logic could power lawtech, HR, and vertical SaaS products that do not want to maintain UK immigration rules internally. The value is recurring infrastructure revenue from a difficult, regulation-heavy rules layer.
Who It's For
For HR software vendors, recruitment platforms, immigration workflow tools, and internal enterprise engineering teams that need compliant validation without building the rule logic themselves.
Feature List
✓ API endpoints for salary and occupation-code validation ✓ Deadline-calculation engine for reporting obligations ✓ Versioned rule updates with changelogs and audit output
Where to Validate
Share your landing page in r/Product Hunt · saas — that's exactly where these pain points were discovered.
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