USADATA is a data and marketing intelligence company founded in 1998 and headquartered in New York City, backed by Insight Partners. It maintains a database of 260+ million US consumer records, 15+ million businesses, and 190 million households, updated monthly, and provides audience intelligence, data enrichment, hygiene, and omnichannel campaign activation. Products include the SL360 self-serve audience platform, Hailey AI conversational audience builder, a white-label Leads Portal with an embeddable Leads Module, and RESTful APIs for real-time and batch enrichment, audience building, hygiene (address standardization, NCOA, dedup, deceased suppression), and matchback attribution, with integrations into Salesforce, HubSpot, Marketo, and other CRM and marketing platforms. One machine-readable contract is published — the Leads Engine SOAP service at leadsengine.usadata.com serves a WSDL anonymously declaring 24 operations for counts, pricing, ordering, suppression, address lookup and geography. The REST APIs the marketing site advertises publish no spec, and API credentials are sales-gated with no developer portal, no reference documentation and no self-service sign-up.
USADATA is listed with 1 API on the APIs.io network. Tagged areas include Company, Data, Marketing, Data Enrichment, and Audience Targeting.
USADATA’s developer surface includes authentication, signup flow, API reference, engineering blog, support, sandbox, and 20 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Horizontal (data, software, accessibility, platform) regime, so
Regulatory Posture carries 15 points of the composite.
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Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for
this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero:
never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and
several others — scorable at all.
The six quality facets above are damped to 85 points between them,
because the conditional facet above carries the other
15. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 85% of its nominal
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Agent readiness — checks not met, largest first (exact, from this profile):
MCP Server+12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency+9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card+8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Request/Response Examples+7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Publicly served SOAP 1.1 / 1.2 web service behind the USADATA Leads Portal and Leads Module. The WSDL is served anonymously from the production API host and declares 24 operatio...
USADATA ships no MCP server. Searched the docs, npm, and the MCP registries on 2026-08-13 and found nothing first-party. What follows is a CANDIDATE tool set derived one-for-one...
aid: usadata-inc
name: USADATA
description: USADATA is a data and marketing intelligence company founded in 1998 and headquartered in New York City, backed
by Insight Partners. It maintains a database of 260+ million US consumer records, 15+ million businesses, and 190 million
households, updated monthly, and provides audience intelligence, data enrichment, hygiene, and omnichannel campaign activation.
Products include the SL360 self-serve audience platform, Hailey AI conversational audience builder, a white-label Leads
Portal with an embeddable Leads Module, and RESTful APIs for real-time and batch enrichment, audience building, hygiene
(address standardization, NCOA, dedup, deceased suppression), and matchback attribution, with integrations into Salesforce,
HubSpot, Marketo, and other CRM and marketing platforms. One machine-readable contract is published — the Leads Engine SOAP
service at leadsengine.usadata.com serves a WSDL anonymously declaring 24 operations for counts, pricing, ordering, suppression,
address lookup and geography. The REST APIs the marketing site advertises publish no spec, and API credentials are sales-gated
with no developer portal, no reference documentation and no self-service sign-up.
url: https://raw.githubusercontent.com/api-evangelist/usadata-inc/refs/heads/main/apis.yml
deliveryModel:
model: saas
open_source: false
commercial: true
callable_host: false
label: Hosted service · you call their endpoint
confidence: medium
source:
- pricing
generated: '2026-08-28'
method: derived
accessModel:
pricing: unknown
onboarding: unknown
trial: false
try_now: false
public: false
label: Unknown
confidence: low
source:
- authentication
- rate-limits
- security
- sandbox
generated: '2026-11-06'
method: derived
image: https://static1.squarespace.com/static/69dd1686c455113b9719b22c/t/69dd16cec455113b9719c333/1723120623587/USD_logo_1C_NEBULON.png
x-type: company
x-source: vc-portfolio
x-backed-by:
- insight-partners
x-tier: profile
x-tier-reason: enriched-from-stub
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
tags:
- Company
- Data
- Marketing
- Data Enrichment
- Audience Targeting
- Data Hygiene
- Direct Mail
- Leads
- SOAP
- Mailing Lists
apis:
- aid: usadata-inc:leads-engine
name: USADATA Leads Engine Service (SOAP)
description: 'Publicly served SOAP 1.1 / 1.2 web service behind the USADATA Leads Portal and Leads Module. The WSDL is served
anonymously from the production API host and declares 24 operations covering the full list-brokerage workflow: table and
column discovery (getTableList, getTableDefinition), synchronous and asynchronous audience counts and saturation (carrier-route)
counts, cross-tab matrix reports, prior-order suppression, order pricing, order submission, order status and cancellation,
address lookup with geocoding, and state/county/city/ZIP geography lookups. Authentication is a Login {UserID, Password,
ClientID} element carried in the SOAP body; ping and getVersion answer anonymously. Credentials are issued by USADATA
through sales / developer support — there is no self-service sign-up.'
humanURL: https://leadsengine.usadata.com/service.asmx
baseURL: https://leadsengine.usadata.com/service.asmx
tags:
- SOAP
- Data
- Leads
- Mailing Lists
- Audience Targeting
- Direct Mail
properties:
- type: WSDL
url: wsdl/usadata-inc-leads-engine.wsdl
- name: Leads Engine operation reference (ASP.NET service help)
type: APIReference
url: https://leadsengine.usadata.com/service.asmx
- name: Authentication
type: Authentication
url: authentication/usadata-inc-authentication.yml
- name: Error codes and envelopes
type: ErrorCatalog
url: errors/usadata-inc-error-codes.yml
- name: API conventions
type: Conventions
url: conventions/usadata-inc-conventions.yml
- name: Data model
type: DataModel
url: data-model/usadata-inc-data-model.yml
x-evidence:
wsdl_url: https://leadsengine.usadata.com/service.asmx?WSDL
wsdl_status: 200
wsdl_bytes: 76775
disco_url: https://leadsengine.usadata.com/service.asmx?disco
disco_status: 200
live_ping: 'true'
live_version: 3.0.9719.28036
fetched: '2026-08-13'
ownership: 'WSDL self-identifies as USADATA: wsdl:service name "USADATA Leads Engine Service", targetNamespace http://Usadata/Services/Service,
soap:address https://leadsengine.usadata.com/service.asmx, credential namespace http://Usadata.com/Services/LeadsEngine/Login.'
common:
- type: RateLimits
url: rate-limits/usadata-inc-rate-limits.yml
- url: https://www.usadata.com/resources/news?format=rss
type: BlogRSS
- type: DomainSecurity
url: security/usadata-inc-domain-security.yml
- name: Authentication
type: Authentication
url: authentication/usadata-inc-authentication.yml
- name: Error Catalog
type: ErrorCatalog
url: errors/usadata-inc-error-codes.yml
- name: API Conventions
type: Conventions
url: conventions/usadata-inc-conventions.yml
- name: Data Model
type: DataModel
url: data-model/usadata-inc-data-model.yml
- name: Lifecycle
type: Lifecycle
url: lifecycle/usadata-inc-lifecycle.yml
- name: Plans and Pricing
type: Plans
url: plans/usadata-inc-plans-pricing.yml
- name: MCP Server (candidate, derived from the Leads Engine WSDL)
type: MCPServer
url: mcp/usadata-inc-mcp.yml
- name: Agent Skills
type: AgentSkill
url: skills/_index.yml
- name: Sign Up
type: SignUp
url: https://www.sl360.com/signup
- name: Leads Engine API Reference (ASP.NET service help page)
type: APIReference
url: https://leadsengine.usadata.com/service.asmx
- name: Website
type: Website
url: https://www.usadata.com/
- name: APIs and Integrations
type: APIs
url: https://www.usadata.com/products/apis
- name: Blog
type: Blog
url: https://www.usadata.com/resources/news
- name: Support
type: Support
url: https://www.usadata.com/contact
- name: Help Center
type: HelpCenter
url: https://www.usadata.com/resources/learning-lab
- name: Terms of Service
type: TermsOfService
url: https://www.usadata.com/termsofuse
- name: Privacy Policy
type: PrivacyPolicy
url: https://www.usadata.com/privacy-policy
- name: Login
type: Login
url: https://www.sl360.com/signin/
- name: GitHub Organization
type: GitHubOrganization
url: https://github.com/usadata
- name: LLMs.txt
type: LLMsTxt
url: llms/usadata-inc-llms.txt
- name: Conformance
type: Conformance
url: conformance/usadata-inc-conformance.yml
- name: Embedded Components (Leads Module)
type: Components
url: components/usadata-inc-components.yml
- name: Sandbox
type: Sandbox
url: sandbox/usadata-inc-sandbox.yml
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
- FN: APIs.json
email: info@apis.io
x-enrichment:
date: '2026-08-13'
status: enriched
artifacts_added: 14
pass: local-v1
x-legal-name: USADATA, Inc.
USADATA API — frequently asked questions
Does USADATA have an API?
Yes. APIs.io lists 1 API from USADATA, including USADATA Leads Engine Service (SOAP).
How do I authenticate with the USADATA API?
USADATA uses bearer-token authentication (custom-soap-body-credential · 1 scheme). The details are profiled on APIs.io as Usadata Inc Authentication.
Does USADATA have an MCP server?
Yes. APIs.io lists 1 MCP server for USADATA: USADATA ships no MCP server. Searched the docs, npm, and the MCP registries on 2026-08-13 and found nothing first-party. What follows is a CANDIDATE tool set derived one-for-one from the 24 operations
Is the USADATA API ready for AI agents?
USADATA has a Kin Score of 31.5 out of 100 (thin) and an Agent Readiness score of 19.6 (agent-aware), scored by API Evangelist on 2026-11-06.
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