How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Leadspace Discovery API

Bulk account expansion into net-new contacts

Leadspace Discovery API is one of 6 APIs that Leadspace publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Discovery. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 1 operation across 1 path, and defines 8 schemas. It is described by OpenAPI 3.1.0, at version 2.0.

Requests are made against a single base URL, https://apigw.leadspace.com.

1 operations 1 paths 8 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
2.0
Base URL
https://apigw.leadspace.com
Authentication
HTTP Bearer
Terms of Service
Resource Areas
1

Authentication & Security 1

Leadspace Discovery API declares 1 security scheme for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). By default, every request must be authenticated.

  • bearerAuth — Authorization header in the form 'Bearer APIKEY'

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Discovery 1

Bulk account expansion into net-new contacts

POST
/v2/expansion/company
Submit a bulk account discovery (expansion) job
discoverCompanyContacts body → 202400401403427500

Schemas 8

The contract defines 8 schemas that model the data the API accepts and returns. The most detailed are DiscoveryItem (6 properties), DiscoveryContactCriteria (4 properties), Error (4 properties), DiscoveryCallback (3 properties). Each schema is shown below with its type and property counts.

DiscoveryContactCriteria
object
4 properties
Error
object
4 properties
RequiredResultsFields
object
3 properties
DiscoveryAccepted
object
1 property
DiscoveryAccount
object
Either companyName or companyWebsite is mandatory
3 properties
DiscoveryItem
object
6 properties
DiscoveryCallback
object
3 properties
DiscoveryRequest
object
3 properties 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

leadspace-discovery-api-openapi.yml Raw ↑

Other APIs Leadspace publishes across the network.

Leadspace Authorization API
Leadspace Enrichment API
Leadspace Intent API
Leadspace MCP
Leadspace Results API
Where this information came from

This is an independent, third-party profile of Leadspace Discovery API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.