API · Private beta

The same ruleset that powers
the checker, in your pipeline.

One JSON request in, a fully cited pass/fail breakdown out. Built for VDC platforms, estimating tools, plan-review software, and anything else that needs zoning and code answers without a human re-deriving them each time.

Request API access → See a sample request

What you get

Source-cited compliance answers as structured JSON

POST a jurisdiction, a zoning district, and your project parameters. Get back a structured list of pass/fail/needs-review results, each citing the exact article and section of the ordinance it came from.

No interpretation layer, no paraphrase. The same citation you'd find in the official PDF — returned as machine-readable JSON your system can act on.

505+ jurisdictions across 10 states, 6,784 zoning districts

18 compliance categories per jurisdiction

Every result includes article/section citation

Pass, fail, needs-review, and N/A statuses

RESTful JSON API, standard HTTP verbs

Webhook support for async large-batch jobs

Sample request

One call, fully cited results

Send a jurisdiction, a district, and your project's numbers. Get back pass/fail/review for every applicable rule, each citing the exact ordinance section it came from.

curl -X POST https://api.codecheck.app/v1/check \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "jurisdiction": "westmont",
    "zoning_district": "R-4",
    "lot_area_sqft": 8000,
    "lot_width_ft": 52,
    "front_setback_ft": 26,
    "interior_side_setback_ft": 5,
    "building_height_ft": 34
  }'

import requests

response = requests.post(
    "https://api.codecheck.app/v1/check",
    headers={{"Authorization": "Bearer YOUR_API_KEY"}},
    json={{
        "jurisdiction": "westmont",
        "zoning_district": "R-4",
        "lot_area_sqft": 8000,
        "lot_width_ft": 52,
        "front_setback_ft": 26,
        "building_height_ft": 34
    }}
)
results = response.json()

const response = await fetch("https://api.codecheck.app/v1/check", {{
  method: "POST",
  headers: {{
    "Authorization": "Bearer YOUR_API_KEY",
    "Content-Type": "application/json"
  }},
  body: JSON.stringify({{
    jurisdiction: "westmont",
    zoning_district: "R-4",
    lot_area_sqft: 8000,
    front_setback_ft: 26,
    building_height_ft: 34
  }})
}});
const results = await response.json();

Sample response

Structured, cited, actionable

// POST /v1/check → 200 OK
{{
  "jurisdiction": "westmont",
  "zoning_district": "R-4",
  "overall_status": "fail",
  "rules_checked": 6,
  "results": [
    {{
      "rule": "Minimum Lot Area",
      "status": "pass",
      "detail": "8000 sq ft ≥ minimum 7800 sq ft.",
      "citation": "Westmont Zoning Code, Article II, Table II-2 (§155-3.30)"
    }},
    {{
      "rule": "Maximum Building Height",
      "status": "fail",
      "detail": "36 ft > maximum 35 ft.",
      "citation": "Westmont Zoning Code, Article II, Table II-2 (§155-3.30)"
    }}
  ]
}}

Endpoints

API reference

Method	Endpoint	Description
POST	`/v1/check`	Run a compliance check. Returns pass/fail/review for each applicable rule with citations.
GET	`/v1/jurisdictions`	List all available jurisdictions with their coverage depth scores.
GET	`/v1/jurisdictions/:id/districts`	List zoning districts for a specific jurisdiction.
GET	`/v1/jurisdictions/:id/rules`	Full rules schema for a jurisdiction (read-only).
POST	`/v1/batch`	Submit a batch of up to 100 compliance checks. Returns a job ID for async retrieval.
GET	`/v1/batch/:job_id`	Retrieve results of a completed batch job.

Use cases

Built for these workflows

🏗

MEP Contractors

Pre-bid compliance screening

Run compliance checks on prospect addresses during the estimating phase — before committing to design hours. Surface zoning issues before they become change orders.

📐

Architects

Automated zoning memo generation

Integrate the API into your project management system to auto-generate a zoning compliance memo at project start — with source citations ready for client delivery.

💻

Prop-tech / VDC platforms

Embed compliance in your product

Add cited zoning answers to your platform without building and maintaining a compliance data layer. The API handles the ordinance data; you own the UX.

Ready to integrate?

API is currently in private beta. Request access and we'll reach out within 48 hours.

Request API access → Try the web checker first