The legacy MadKudu Scoring API returns customer-fit (demographics), likelihood-to-buy and lead-grade scores for companies by domain and persons by email, plus a job-changes watch list and a ping utility — 6 operations. Authentication is HTTP Basic (API key as username, empty password) with a different key from MadAPI; rate limited to 600 requests per endpoint per minute (HTTP 429 when exceeded). MadKudu labels this surface "Legacy" and steers new integrations to MadAPI, but publishes no dated deprecation or sunset policy.
This API exposes
6 operations
across 4 paths,
organized into 4 resource areas,
and defines 34 schemas.
It is described by OpenAPI 3.1.0, at version 0.0.0.
Requests are made against a single base URL, https://api.madkudu.com.
6 operations4 paths34 schemas3 GET3 POST
Metadata
The identity and technical contract details declared by the specification.
Specification
OpenAPI 3.1.0
API Version
0.0.0
Base URL
https://api.madkudu.com
Authentication
HTTP Basic
Resource Areas
4
Authentication & Security 1
MadKudu Legacy Scoring API declares
1 security scheme
for authenticating requests.
It accepts HTTP basic authentication (BasicAuth).
By default, every request must be authenticated.
Paths & Operations 6
Across 4 paths, the API surfaces 6 operations — 3 GET, 3 POST. They span 4 resource areas: Utilities, Companies, Persons, Job Changes. Each is listed below with its method, path, parameters, and response codes.
The contract defines 34 schemas that model the data the API accepts and returns. The most detailed are Common.Models.ClearbitCompany (28 properties), Common.Models.ClearbitPerson (22 properties), Common.Models.SocialProfile (13 properties), Common.Models.GeoLocation (11 properties). Each schema is shown below with its type and property counts.
Services.Utilities.PingResponse
object
Ping response
1 property1 required
Common.Errors.AuthenticationError
object
Authentication error
1 property1 required
Common.Errors.RateLimitError
object
Rate limit exceeded error
2 properties1 required
Common.Errors.InternalServerError
object
Internal server error
1 property1 required
Services.Companies.CompanyLookupResponse
object
Company lookup response
3 properties3 required
Common.Models.ObjectType
string
Object type identifier
Services.Companies.CompanyProperties
object
Company properties containing all company information
7 properties
Common.Models.Location
object
Geographic location information
5 properties
Common.Models.CustomerFit
object
Customer fit analysis with score and signals
4 properties4 required
Common.Models.CustomerFitSegment
string
Customer fit segment values
Common.Models.Signal
object
Individual signal contributing to customer fit score
3 properties3 required
Common.Models.SignalType
string
Signal type indicating positive or negative impact
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