Production APIs for accessibility testing, deployed-app exposure checks, and agent approval controls. Planned product APIs remain clearly labeled until their authentication, metering, and contracts are ready.
POST /v1/shield/scan
Authorization: Bearer sk_shield_••••
Content-Type: application/json
{ "url": "https://example.com" }
200 OK scan · findings · evidence
01Shield API
Production
Shield API
Find accessibility problems on your website and verify that they were fixed.
Scan a deployed webpage for automatically detectable accessibility issues, receive prioritized remediation guidance, and rescan to confirm changes.
Price
$49/mo
Included
500 calls included
Authentication
Bearer sk_shield_…
Base URL
shield-api.3stoneai.com
02Sentinel API
Production
Sentinel API
Check whether your live application is exposing data or secrets it should not.
Run read-only checks for anonymous Supabase access signals, missing RLS signals and secrets bundled into browser JavaScript.
Price
$49/mo
Included
1 monitored app
Authentication
Bearer sk_sentinel_…
Base URL
shield-api.3stoneai.com
03Ledger API
Production
Ledger API
Require approval before an AI agent performs a risky action.
Record proposed agent actions, apply configurable risk thresholds, approve or reject held actions, and retain an independent outcome record.
Price
$29/mo
Included
1,000 actions included
Authentication
Bearer sk_ledger_…
Base URL
shield-api.3stoneai.com
Product APIs · Private beta
Bring 3Stone product engines into your own software.
These prices are the intended beta plans, not charges being collected today. Access opens only after authentication, tenant isolation, metering and product-specific terms pass review.
04
Private beta
Frontdesk API
Answer, qualify and route calls inside your own customer experience.
Planned surface: call events, structured lead records, routing outcomes and provider webhooks. Voice and SMS charges will be passed through separately.
Add structured intake and self-guided preparation workflows to another product.
Informational preparation only—not legal, financial or licensed-professional advice. Public access will launch with workflow isolation and explicit jurisdiction metadata.
Choose a product, create a key through secure Stripe Checkout, store it server-side, and call the production endpoint. Responses are JSON and errors use standard HTTP status codes.
01
Choose the narrow API
Use Shield for accessibility, Sentinel for deployed-app exposure, or Ledger for agent control.
02
Create and protect the key
Keys are delivered once after checkout. Keep them in a server-side secret store.
03
Run the public collection
Import the Postman collection or use the OpenAPI contract from GitHub.
04
Handle the result
Use evidence and explicit statuses in your own workflow; never infer a guarantee the API does not make.