UpLead

UpLead is a B2B contact and company data platform providing a REST API for searching leads, verifying emails, accessing company profiles, and enriching contact information. The API enables developers to look up verified contacts by email or name, search companies by domain or name, run prospector queries to find contacts by job title or function, and perform combined person-plus-company lookups in a single call. UpLead operates on a credit-based billing model where charges only apply when verified data is returned.

UpLead publishes 8 API contracts indexed on the APIs.io network, including Account API, Combined API, Company API, and 5 more. Tagged areas include B2B, Lead Generation, Contact Data, Company Data, and Email Verification.

The UpLead catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

UpLead’s developer surface includes authentication, documentation, engineering blog, pricing, changelog, API reference, getting-started guide, and 29 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

54.7/100 strong ▬ flat Agent 31/100 agent ready Front door AI 4/6 moderate Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFreemiumSelf serveFree trial⚡ Free to try

1 published contract 4 Agent Skills

B2B Lead Generation Contact Data Company Data Email Verification Data Enrichment Sales Intelligence

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Data & Reference Information Services

AE-230

CombinedCompanyPersonProspector

GET /company-search GET /combined-search GET /person-search POST /prospector-search

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 54.7/100 · strong

Contract Quality 10.6 / 19

Developer Ergonomics 8.8 / 15

Access Clarity 10.8 / 15

Operational Transparency 4.6 / 10

Contract Governance 1.3 / 9

Discoverability 5.0 / 8

Regulatory Posture 2.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 31/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

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. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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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 Ask about this →
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) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 56.6 — up to +10.9 composite points Ask about this →
Contract Governance scores 14.4 — up to +10.3 composite points Ask about this →
Developer Ergonomics scores 58.9 — up to +8.2 composite points Ask about this →

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/uplead/apis.yml: open an issue on github.com/api-evangelist/uplead to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 8

Individual APIs this provider publishes, each with its own machine-readable definition.

UpLead Account API

Account and credit management.

UpLead Combined API

Combined person and company lookup.

UpLead Company API

Company search and enrichment operations.

UpLead Lists API

Contact list management operations.

UpLead Person API

Person/contact search and enrichment operations.

UpLead Prospector API

Prospector search operations for discovering contacts.

UpLead Reference API

Reference data lookups.

UpLead Search API

General search operations.

Scroll for all 8

Open Collections 8

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

UpLead Account API

OPEN COLLECTION

UpLead Account Combined API

OPEN COLLECTION

UpLead Account Company API

OPEN COLLECTION

UpLead Account Lists API

OPEN COLLECTION

UpLead Account Person API

OPEN COLLECTION

UpLead Account Prospector API

OPEN COLLECTION

UpLead Account Reference API

OPEN COLLECTION

UpLead Account Search API

OPEN COLLECTION

Scroll for all 8

Agent Skills 4

Packaged agent skills for driving this provider's APIs from an AI assistant.

Build and maintain a contact list

AGENT SKILL

Enrich a business email into a contact and company

AGENT SKILL

Resolve a company from a name, then enrich it

AGENT SKILL

Size a prospect segment before paying for it

AGENT SKILL

UpLead API pricing

Prices published by UpLead, read 2026-10-28 from www.uplead.com/pricing/.

Plan	Price
Test Drive Free Trial	$0/ 7 days Includes: 5 Credits
Essentials (monthly)	$99/ month Includes: 170 credits/ month, 1 user
Plus (monthly)	$199/ month Includes: 400 credits/ month, 1 user
Essentials (annual)	$74/ month Includes: 2,040 Credits, Billed annually
Plus (annual)	$149/ month Includes: 4,800 Credits, Billed annually
Professional	Let’s talk Includes: Custom seats and credits, Annual Billing Only

Plan details, limits and sources →

Billed by: account · FinOps profile →

Pricing Plans 2

Published pricing tiers and plan structures.

UpLead Plans Pricing

6 plans

PLANS

UpLead Price Estimates

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

UpLead Rate Limits

1 limits

RATE LIMITS

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

UpLead

13 quoted statements, read from UpLead's own page on 2026-11-10.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

UpLead

26 quoted statements, read from UpLead's own page on 2026-11-10.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

UpLead

5 quoted statements, read from UpLead's own page on 2026-11-10.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

UpLead

1 quoted statement, read from UpLead's own page on 2026-11-10.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

UpLead

1 quoted statement, read from UpLead's own page on 2026-11-10.

LICENSE

FinOps 1

Cost, billing, and metering signals for API financial operations.

UpLead Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Uplead Context

42 classes · 13 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

UpLead — jsonschema rules

5 rules · 4 warn-severity 1 info-severity

SPECTRAL

OpenAPI Overlays 8

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

UpLead Account Api Overlay

3 actions · update · uplead-account-api-openapi.yml

DERIVED

UpLead Combined Api Overlay

3 actions · update · uplead-combined-api-openapi.yml

DERIVED

UpLead Company Api Overlay

3 actions · update · uplead-company-api-openapi.yml

DERIVED

UpLead Lists Api Overlay

3 actions · update · uplead-lists-api-openapi.yml

DERIVED

UpLead Person Api Overlay

3 actions · update · uplead-person-api-openapi.yml

DERIVED

UpLead Prospector Api Overlay

3 actions · update · uplead-prospector-api-openapi.yml

DERIVED

UpLead Reference Api Overlay

3 actions · update · uplead-reference-api-openapi.yml

DERIVED

UpLead Search Api Overlay

3 actions · update · uplead-search-api-openapi.yml

DERIVED

Scroll for all 8

JSON Schema 3

Standalone JSON Schema definitions for this provider's data models.

UpLead Company

32 properties

JSON SCHEMA

UpLead Contact List

3 properties

JSON SCHEMA

UpLead Person

20 properties

JSON SCHEMA

Examples 5

Example request and response payloads for these APIs.

Company Search Response

2 fields

EXAMPLE

Credits Response

2 fields

EXAMPLE

Person Search Response

2 fields

EXAMPLE

Prospector Search Request

7 fields

EXAMPLE

Prospector Search Response

3 fields

EXAMPLE

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

UpLead Authentication

apiKey · 1 scheme

SECURITY

UpLead Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

Recommended x-agentic-access execution contracts for AI agents.

UpLead Agentic Access

21 operations · 8 acting

AGENTIC

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

AIPreferences

AIPreferences

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Conformance

Lifecycle

Build 1

SDKs, sample code, and the tooling you integrate with

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 5

Status, limits, changes, and where to get help

StatusPage

RateLimits

ChangeLog

ChangeLog

Support

Commercial 7

Pricing, plans, and the legal terms of use

Pricing

Plans

FinOps

TermsOfService

PrivacyPolicy

UsageTerms

DataLicense

Scroll for all 7

Company 3

The organization behind the API

Website

Website

Blog

Blog

LinkedIn

Other 4

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

DataProcessing

DataProcessing

Eligibility

Eligibility

Source (apis.yml)

aid: uplead
name: UpLead
description: 'UpLead is a B2B contact and company data platform providing a REST API for searching leads, verifying emails,
  accessing company profiles, and enriching contact information. The API enables developers to look up verified contacts by
  email or name, search companies by domain or name, run prospector queries to find contacts by job title or function, and
  perform combined person-plus-company lookups in a single call. UpLead operates on a credit-based billing model where charges
  only apply when verified data is returned.

  '
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: true
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium (free trial) · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-11-13'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/uplead.png
url: https://raw.githubusercontent.com/api-evangelist/uplead/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-08-13'
specificationVersion: '0.23'
tags:
- B2B
- Lead Generation
- Contact Data
- Company Data
- Email Verification
- Data Enrichment
- Sales Intelligence
apis:
- aid: uplead:uplead-account-api
  name: UpLead Account API
  description: Account and credit management.
  humanURL: https://docs.uplead.com/
  baseURL: https://api.uplead.com/v2/
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/uplead-account-api-openapi.yml
  - type: Overlay
    url: overlays/uplead-account-api-overlay.yaml
  - type: Documentation
    url: https://docs.uplead.com/
- aid: uplead:uplead-combined-api
  name: UpLead Combined API
  description: Combined person and company lookup.
  humanURL: https://docs.uplead.com/
  baseURL: https://api.uplead.com/v2/
  tags:
  - Combined
  properties:
  - type: OpenAPI
    url: openapi/uplead-combined-api-openapi.yml
  - type: Overlay
    url: overlays/uplead-combined-api-overlay.yaml
  - type: Documentation
    url: https://docs.uplead.com/
- aid: uplead:uplead-company-api
  name: UpLead Company API
  description: Company search and enrichment operations.
  humanURL: https://docs.uplead.com/
  baseURL: https://api.uplead.com/v2/
  tags:
  - Company
  properties:
  - type: OpenAPI
    url: openapi/uplead-company-api-openapi.yml
  - type: Overlay
    url: overlays/uplead-company-api-overlay.yaml
  - type: Documentation
    url: https://docs.uplead.com/
- aid: uplead:uplead-lists-api
  name: UpLead Lists API
  description: Contact list management operations.
  humanURL: https://docs.uplead.com/
  baseURL: https://api.uplead.com/v2/
  tags:
  - List
  tags_raw:
  - Lists
  properties:
  - type: OpenAPI
    url: openapi/uplead-lists-api-openapi.yml
  - type: Overlay
    url: overlays/uplead-lists-api-overlay.yaml
  - type: Documentation
    url: https://docs.uplead.com/
- aid: uplead:uplead-person-api
  name: UpLead Person API
  description: Person/contact search and enrichment operations.
  humanURL: https://docs.uplead.com/
  baseURL: https://api.uplead.com/v2/
  tags:
  - Persons
  tags_raw:
  - Person
  properties:
  - type: OpenAPI
    url: openapi/uplead-person-api-openapi.yml
  - type: Overlay
    url: overlays/uplead-person-api-overlay.yaml
  - type: Documentation
    url: https://docs.uplead.com/
- aid: uplead:uplead-prospector-api
  name: UpLead Prospector API
  description: Prospector search operations for discovering contacts.
  humanURL: https://docs.uplead.com/
  baseURL: https://api.uplead.com/v2/
  tags:
  - Prospector
  properties:
  - type: OpenAPI
    url: openapi/uplead-prospector-api-openapi.yml
  - type: Overlay
    url: overlays/uplead-prospector-api-overlay.yaml
  - type: Documentation
    url: https://docs.uplead.com/
- aid: uplead:uplead-reference-api
  name: UpLead Reference API
  description: Reference data lookups.
  humanURL: https://docs.uplead.com/
  baseURL: https://api.uplead.com/v2/
  tags:
  - Reference
  properties:
  - type: OpenAPI
    url: openapi/uplead-reference-api-openapi.yml
  - type: Overlay
    url: overlays/uplead-reference-api-overlay.yaml
  - type: Documentation
    url: https://docs.uplead.com/
- aid: uplead:uplead-search-api
  name: UpLead Search API
  description: General search operations.
  humanURL: https://docs.uplead.com/
  baseURL: https://api.uplead.com/v2/
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/uplead-search-api-openapi.yml
  - type: Overlay
    url: overlays/uplead-search-api-overlay.yaml
  - type: Documentation
    url: https://docs.uplead.com/
common:
- type: CapabilityMap
  url: capabilities/uplead-capability-edges.yml
  name: UpLead Business Capability Map
- type: AgenticAccess
  url: agentic-access/uplead-agentic-access.yml
- type: DomainSecurity
  url: security/uplead-domain-security.yml
- type: Authentication
  url: authentication/uplead-authentication.yml
- type: Website
  url: https://www.uplead.com/
- type: Documentation
  url: https://docs.uplead.com/
- type: Blog
  url: https://www.uplead.com/blog/
- type: Pricing
  url: https://www.uplead.com/pricing/
- type: StatusPage
  url: https://status.uplead.com/
- type: LinkedIn
  url: https://www.linkedin.com/company/uplead-com/
- type: X
  url: https://x.com/UpLeadHQ
- type: Plans
  url: plans/uplead-plans-pricing.yml
- type: RateLimits
  url: rate-limits/uplead-rate-limits.yml
- type: FinOps
  url: finops/uplead-finops.yml
- type: Packages
  url: packages/uplead-packages.yml
- type: Conventions
  url: conventions/uplead-conventions.yml
- type: ErrorCatalog
  url: errors/uplead-problem-types.yml
- type: DataModel
  url: data-model/uplead-data-model.yml
- type: Conformance
  url: conformance/uplead-conformance.yml
- type: Lifecycle
  url: lifecycle/uplead-lifecycle.yml
- type: ChangeLog
  url: changelog/uplead-changelog.yml
- type: ChangeLog
  name: UpLead Release Notes
  url: https://support.uplead.com/en/collections/19646601-release-notes
- type: LLMsTxt
  url: llms/uplead-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: DeveloperPortal
  url: https://www.uplead.com/data-api/
- type: APIReference
  url: https://docs.uplead.com/
- type: GettingStarted
  url: https://www.uplead.com/getting-started-with-uplead/
- type: Support
  url: https://support.uplead.com/
- type: SignUp
  url: https://app.uplead.com/signup
- type: TermsOfService
  url: https://www.uplead.com/terms/
- type: PrivacyPolicy
  url: https://www.uplead.com/privacy/
- type: UsageTerms
  url: terms/uplead-terms-of-service.yml
- type: DataProcessing
  url: privacy/uplead-privacy-policy.yml
- type: Eligibility
  url: eligibility/uplead-eligibility.yml
- type: AIPreferences
  url: ai-preferences/uplead-ai-preferences.yml
- type: DataLicense
  url: data-license/uplead-data-license.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 23
  pass: local-v1

UpLead API — frequently asked questions

Does UpLead have an API?

Yes. APIs.io lists 8 APIs from UpLead, including UpLead Account API, UpLead Combined API and UpLead Company API, and 5 more.

Is there an OpenAPI specification for the UpLead API?

Yes. APIs.io indexes 8 OpenAPI specifications for UpLead, each linked for download from this page.

How do I authenticate with the UpLead API?

UpLead uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as UpLead Authentication.

How much does the UpLead API cost?

UpLead publishes its prices; its Test Drive Free Trial plan is $0/ 7 days as of 2026-10-28. APIs.io lists 6 pricing plans for UpLead, with each plan's price, limits and inclusions under Pricing on this page.

Is the UpLead API ready for AI agents?

UpLead has a Kin Score of 54.7 out of 100 (strong) and an Agent Readiness score of 31.1 (agent-ready), scored by API Evangelist on 2026-11-13.

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