Chennai Building Utility API: property tax, water, EB by pin

Example

Request

curl -X POST https://verified.realestate/api/v1/tools/chennai_utility \
  -H "Authorization: Bearer $LANDLENS_KEY" \
  -H "Content-Type: application/json" \
  -d '{"lat":13.027192,"lng":80.245106}'

Responsereal answer

{
  "ok": true,
  "status": "proposal",
  "data": {
    "proposal": true,
    "action": "chennai_utility",
    "label": "Check property tax (GCC) + water tax (CMWSSB) + EB connections (TANGEDCO) for this building",
    "params": {
      "lat": 13.027192,
      "lng": 80.245106,
      "checks": ["property_tax", "water_tax", "eb_connections"]
    },
    "cost": 6,
    "source": "Chennai corporation tax and utility records",
    "note": "Chennai corporation buildings only. Live fetch from the government portals; charged per check that returns a record."
  },
  "credits_charged": 0,
  "next": {
    "tool": "approve_action",
    "arguments": {
      "action": "chennai_utility",
      "params": { "lat": 13.027192, "lng": 80.245106, "checks": ["property_tax", "water_tax", "eb_connections"] }
    }
  }
}

A real quote from the API, with the balance and request id left out. Approving it runs the three live checks.

What it returns

The first call returns a quote, with status proposal. Send its next block to approve_action within 30 minutes; the approval answers with the results below directly (it does not queue).

Field	What it holds
`results.property_tax`	The corporation assessment for the building: its bill numbers, zone and ward, and the tax record with dues (tax_data), with success, available and message.
`results.water_tax`	The water board record: owner name, address, total dues, half-yearly tax, and whether water, sewer and rainwater harvesting are connected (water_data).
`results.eb_connections`	The electricity connections on the building: total connections, LT and HT counts, the tariffs and their usage types.
`results.*.charged`	Credits taken for that check: the per-check price when its record came back, 0 when it did not.
`credits_used, coverage`	What the run cost in all, and the area covered.
`outside_coverage`	Set when the point is outside the corporation, with every check marked unavailable and nothing charged.

Inputs

The JSON body of the POST is the arguments. Drop the point on the building itself, not the road in front.

Argument	Type	What to send
`lat`required	number	Latitude in decimal degrees
`lng`required	number	Longitude in decimal degrees
`checks`	array	Any of property_tax, water_tax and eb_connections. Leave it out for all three.

Code

Set LANDLENS_KEY to your key. In an AI app, connect https://verified.realestate/mcp once and ask in plain words instead. In Postman, download this API's collection, import it (File, Import) and set apiKey.

curl -X POST https://verified.realestate/api/v1/tools/chennai_utility \
  -H "Authorization: Bearer $LANDLENS_KEY" \
  -H "Content-Type: application/json" \
  -d '{"lat":13.027192,"lng":80.245106}'

import os, requests

r = requests.post(
    "https://verified.realestate/api/v1/tools/chennai_utility",
    headers={"Authorization": f"Bearer {os.environ['LANDLENS_KEY']}"},
    json={
        "lat": 13.027192,
        "lng": 80.245106
    },
    timeout=60,
)
body = r.json()
print(body["status"], body["credits_charged"], body["data"])

const res = await fetch("https://verified.realestate/api/v1/tools/chennai_utility", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.LANDLENS_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "lat": 13.027192,
    "lng": 80.245106
  }),
});
const body = await res.json();
console.log(body.status, body.credits_charged, body.data);

For the building at 13.027192, 80.245106 in Chennai, is property tax and water tax paid, and how many EB connections does it have?

Your AI shows you the quote for the three checks and runs them only after you say yes.

Responses

Every answer has the same envelope. What status can say for this call:

status	What it means
`proposal`	The quote. Nothing is charged. Approve it by sending next.arguments to approve_action within 30 minutes, unchanged.
`ok`	From approve_action: the checks ran. Read each check's available and charged; a check with no record costs nothing.
`not_found`	lat or lng is not a number, or the point is outside the Chennai corporation. Nothing is quoted or charged.
`insufficient_credits`	HTTP 402 at approval, with the credits needed and your balance.

Where the data comes from

Register

The Greater Chennai Corporation's building index and property tax portal, the Chennai Metropolitan Water Supply and Sewerage Board's water tax records, and the electricity distribution company's connection records.

Coverage

Buildings within the Greater Chennai Corporation, from Kathivakkam in the north to Uthandi in the south. A point outside that area is refused before anything is quoted, and nothing is charged.

How current

Live. The approved run reads the portals at that moment.

How we read it

The point is matched to the building it falls on, and the building's tax and connection numbers are used to read each record. A check is charged only when the government record actually comes back, not merely when a building is found.

Who uses it

Buyers and tenants

Check the tax and utility position of a Chennai building from its location, before you have any bill number.

Lenders and valuers

Confirm the building is assessed, its dues and its connections, from a site visit pin.

Analysts

Read how many electricity connections, and of which tariff, a building carries as a sign of its use.

Limits and good practice

Greater Chennai Corporation only.
The point must fall on the building. A point on the road may find the wrong building or none.
The government portals are often down out of hours. A check that cannot be read returns its message and costs nothing.
A tax assessment or electricity connection is not proof of ownership.

Pricing

2 credits on approval

The quote is free. Each check costs 2 credits when its record comes back, so all three cost at most three times that; a check that finds nothing is not charged. Credits come from the same LandLens wallet as the chat and the minis. How billing works.

Calling at volume?

For thousands of calls a month, a portfolio sweep or a platform built on these registers, we quote a customised bulk price, with invoicing to match.

WhatsApp 99961 29996