API CalcLeilão

CalcLeilão inside your product.

Bring property, vehicle, and profitability analysis into your website, internal system, or AI agent.

Server-side integrationHTTPS + JSON

const response = await fetch(
  "https://calcleilao.com.br/api/v1/imoveis/calcular",
  {
    method: "POST",
    headers: {
      Authorization: `Bearer ${process.env.CALCLEILAO_API_KEY}`,
      "Content-Type": "application/json",
    },
    body: JSON.stringify(operationData),
  },
);

const analysis = await response.json();

Bearer tokenKey stays off the clientLimits in response headers

One API for each level of analysis.

Contract only what you need. Property and vehicle calculators remain separate in the integration as well.

Essential API

A focused integration for organizing purchase, sale, and costs in screening and profitability workflows.

POST /api/v1/lucro

Property API

Scenarios by bid and time horizon, with capital through sale, result, return, and analysis classification.

POST /api/v1/imoveis/calcular

Vehicle API

Exit scenarios, capital, maximum bid, assessments, and document and mechanical risk levels.

POST /api/v1/veiculos/calcular

Put the calculation where the decision happens.

The API provides the engine. Your operation keeps control of the interface, workflow, and user relationship.

Websites and portals

Add analysis to your customer journey while keeping your own product experience and brand.

Internal systems

Connect the calculations to your CRM, sales pipeline, or team assessment workflow.

Private AI

Let a private agent request structured results through tools or function calling, always from your server.

From contract to first response.

Commercial access is configured by product, environment, volume, and security requirements.

Choose the product

Decide whether you need the essential, property, vehicle, or more than one API.

Receive credentials

A key is issued for the contracted product and environment, with limits matched to the operation.

Connect from the server

Your backend sends authenticated JSON and receives a structured response for the final experience.

Track usage

Per-minute and monthly limits are returned in each response header.

Commercial integration with clear limits.

The API separates products, protects credentials, and reduces exposure of financial data.

Protected keys

Credentials are validated by digest and may expire or be revoked.

Scoped access

Each credential belongs to one product and can be restricted to approved networks.

Financial data kept out of audit logs

Operational records do not store submitted values or calculated results.

Technical traceability

Every response receives its own identifier for support and diagnostics.

Before you integrate.

Contract, payload, and response documentation is provided with the contracted environment.

Request access

Can I connect the API to a private AI?

Yes. The agent can call the API as a backend tool. Keep the key on the server and never include it in a browser, client application, or prompt.

Does one key access every calculator?

No. Each credential is tied to one product. A contract may include one or more APIs depending on the integration scope.

How are pricing and volume defined?

The proposal considers the product, monthly volume, per-minute limit, environment, and security requirements.

The API organizes calculations from client-submitted data. It does not guarantee profit, liquidity, or timing and does not replace legal, document, technical, or mechanical due diligence.