Solar industry risk data, on tap.
The Insolar Honesty Index is the most comprehensive public-record-sourced rating system for residential solar installers, financiers, and PACE administrators in the U.S. Now available as a RESTful API and bulk-export feed for institutional users — fintech lenders, insurance carriers, PACE administrators, state regulators, plaintiffs' firms, and consumer-protection agencies.
Who licenses the Honesty Index.
The Index is purpose-built for institutions that underwrite, insure, regulate, or litigate residential solar. Six primary buyer segments are active today:
Underwriting risk overlays
Score installer-partner risk in your underwriting decisioning. Decline or price-up loans originated through installers with declining Honesty Grades. Real-time grade-change webhooks alert your portfolio team within 7 days of a material regulatory event.
Solar warranty & performance underwriting
Underwrite solar warranty insurance, performance guarantees, and contractor E&O coverage with installer-specific risk data. Tie premium pricing to Honesty Grade tier. Useful for both new policy issuance and book renewals.
Enforcement prioritization
Identify which residential solar entities operating in your state warrant investigation. Surface emerging complaint patterns before they cluster into class actions. Cross-reference enforcement activity across all 50 states.
Contractor network risk monitoring
Monitor the Honesty Grades of contractors in your PACE network. Comply with ability-to-repay statutes that require ongoing contractor monitoring. Receive grade-change alerts on contractors you've enrolled.
Case-development screening
Filter consumer-complaint signals across companies and states. Identify clusters that meet class-certification thresholds. Bulk-export historical regulatory event data with full PACER docket linkage.
Industry analysis & reporting
Citable, methodology-published, peer-reviewable data for industry reporting, academic research, and consumer-protection journalism. Discounted access for accredited journalists and non-profit research organizations.
RESTful simplicity.
Standard JSON over HTTPS. Authenticate with bearer token. Two primary endpoints — /v1/companies for the full index, /v1/companies/{slug} for a single company with subscores, regulatory events, and grade history.
Request
# Fetch a single company with full detail curl -H "Authorization: Bearer $TOKEN" \\ https://api.insolar.com/v1/companies/sunrun # Or fetch the full index curl -H "Authorization: Bearer $TOKEN" \\ https://api.insolar.com/v1/companies?type=installer # Subscribe to grade-change webhooks curl -X POST -H "Authorization: Bearer $TOKEN" \\ https://api.insolar.com/v1/webhooks \\ -d '{"url":"https://you.com/webhook","events":["grade.changed"]}'
Response
{ "slug": "sunrun", "name": "Sunrun", "type": "installer", "grade": "C+", "composite_score": 67, "risk_band": "mixed", "subscores": { "contract_clarity": "C", "sales_practice": "D+", "post_install_service": "B-", "financing_honesty": "C+", "legal_track_record": "C" }, "regulatory_events": 4, "as_of": "2026-06-30", "next_refresh": "2026-09-30" }
Bulk-export option: Daily CSV/Parquet feed with the full index, normalized subscores, and a 5-year historical archive. Used by data-science teams that prefer ingest pipelines over per-request API calls.
Three tiers. Annual contracts.
All tiers include the full Honesty Index, methodology documentation, quarterly refresh access, and editorial briefings on material grade changes. Volume and feature differences between tiers:
Research
- Full Honesty Index access (web + bulk CSV)
- Quarterly refresh — automatic delivery
- 5-year historical archive
- Methodology & subscore breakdowns
- Editorial briefings on material grade changes
- 1 named seat · email support
Institutional
- Everything in Research, plus:
- RESTful API access (10,000 calls/day)
- Grade-change webhooks (real-time)
- Custom subscore extracts (filter by state, type)
- Quarterly analyst briefing call
- 5 named seats · priority support · 99.9% SLA
Enterprise
- Everything in Institutional, plus:
- Unlimited API access
- Portfolio-monitoring dashboard (custom)
- Underwriting-overlay scorecard integration
- Co-branded grade attestations (with approval)
- Unlimited seats · dedicated CSM · 99.99% SLA
Discounted pricing available for accredited journalists, academic researchers, and qualifying non-profit consumer-protection organizations. Government and state-regulator pricing on application.
Request institutional access.
Tell us how you'd use the Honesty Index. We'll respond within one business day with tier recommendation, contract terms, and an integration timeline. Sales calls scheduled in < 24 hours for qualified institutional buyers.