Landbase

Landbase is a Palo Alto, California go-to-market (GTM) data and agentic-AI company whose platform builds, qualifies, enriches and activates B2B audiences from natural-language requests. Its GTM-1/GTM-2 Omni models sit behind a B2B database of 300M+ contacts with 1,500+ enrichment fields, an agentic search surface, lookalike expansion, AI lead qualification, and email/LinkedIn outbound campaign execution. Landbase's programmable surface is deliberately agent-first rather than REST-first: the documented client is `landbase-cli`, a self-updating binary distributed from cli.landbase.com that talks to the cloud gateway at api.landbase.com, returns JSON on stdout and stable error codes on stderr, and ships a library of provider-authored Agent Skills for Claude Code and Codex. No OpenAPI description of the gateway is published; the gateway itself sits behind a Cloudflare bot challenge on every path except /.well-known/.

Landbase publishes 1 API on the APIs.io network. Tagged areas include Company, Go-To-Market, Sales, Marketing, and B2B Data.

Landbase’s developer surface includes documentation, API reference, getting-started guide, engineering blog, support, pricing, signup flow, and 22 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.8/100 developing ▬ flat Agent 19/100 agent aware Front door AI 6/6 dominant saas Full breakdown ↓
scored 2026-10-04 · rubric v0.23.0

AccessPaidOpen

1 API 23 Agent Skills

Company Go-To-Market Sales Marketing B2B Data Data Enrichment Artificial Intelligence Agents Command Line Interface Lead Generation

Kin Score

Kin Score How this is scored →
scored 2026-10-04 · rubric v0.23.0

Composite quality — 45.8/100 · developing

Contract Quality 0.0 / 21

Developer Ergonomics 11.3 / 17

Access Clarity 14.3 / 17

Operational Transparency 5.5 / 11

Contract Governance 0.0 / 10

Discoverability 6.2 / 9

Regulatory Posture 4.1 / 15

Agent readiness — 19/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 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

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 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 weight, not 100%. The full arithmetic is at apis.io/rating/.

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 github.com/api-evangelist/landbase: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

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

Landbase Platform API

The Landbase cloud gateway that landbase-cli calls in platform mode. It backs natural-language audience search and agent runs, dataset upload/lineage/download, record match, syn...

Agent Skills 23

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

contact-enrich

AGENT SKILL

contacts-import

AGENT SKILL

dataset-management

AGENT SKILL

dataset-pipeline

AGENT SKILL

dedupe-leads

AGENT SKILL

icp-capture

AGENT SKILL

landbase-email-campaigns

AGENT SKILL

landbase-feedback

AGENT SKILL

landbase-linkedin-campaigns

AGENT SKILL

landbase-quickstart

AGENT SKILL

landbase-search

AGENT SKILL

list-similarity-check

AGENT SKILL

lookalike-expansion

AGENT SKILL

match-lookup

AGENT SKILL

presentation

AGENT SKILL

prospect-builder

AGENT SKILL

qualify-leads

AGENT SKILL

query-assist

AGENT SKILL

tam-mapping

AGENT SKILL

transcript-synthesis

AGENT SKILL

workflow-enrich

AGENT SKILL

workflow-monitor

AGENT SKILL

workflow-transform

AGENT SKILL

Scroll for all 23

Pricing Plans 1

Published pricing tiers and plan structures.

Landbase Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Landbase Rate Limits

4 limits

RATE LIMITS

Security Posture 3

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

Landbase Authentication

2 schemes

SECURITY

Landbase Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Landbase Trust Center

trust center published

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

WellKnown

WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Lifecycle

Conventions

Idempotency

ErrorCatalog

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

CLI

CLI

Packages

Packages

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

Support

Support

ChangeLog

ChangeLog

RateLimits

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: landbase
name: Landbase
description: 'Landbase is a Palo Alto, California go-to-market (GTM) data and agentic-AI company whose platform builds, qualifies,
  enriches and activates B2B audiences from natural-language requests. Its GTM-1/GTM-2 Omni models sit behind a B2B database
  of 300M+ contacts with 1,500+ enrichment fields, an agentic search surface, lookalike expansion, AI lead qualification,
  and email/LinkedIn outbound campaign execution. Landbase''s programmable surface is deliberately agent-first rather than
  REST-first: the documented client is `landbase-cli`, a self-updating binary distributed from cli.landbase.com that talks
  to the cloud gateway at api.landbase.com, returns JSON on stdout and stable error codes on stderr, and ships a library of
  provider-authored Agent Skills for Claude Code and Codex. No OpenAPI description of the gateway is published; the gateway
  itself sits behind a Cloudflare bot challenge on every path except /.well-known/.'
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: paid
  onboarding: open
  trial: false
  try_now: false
  public: true
  label: Paid · Open access
  confidence: high
  source:
  - plans
  - authentication
  - rate-limits
  - security
  generated: '2026-09-02'
  method: derived
image: https://cdn.prod.website-files.com/663db35157fcd223250841ff/665df6511f919f2ee06412ee_webclip-landbase.png
url: https://raw.githubusercontent.com/api-evangelist/landbase/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-23'
modified: '2026-08-23'
x-docs-platform: mintlify
x-docs-platform-confidence: medium
x-docs-platform-checked: 2026-10-03
tags:
- Company
- Go-To-Market
- Sales
- Marketing
- B2B Data
- Data Enrichment
- Artificial Intelligence
- Agents
- Command Line Interface
- Lead Generation
tags_raw:
- Company
- Go To Market
- Sales
- Marketing
- B2B Data
- Data Enrichment
- Artificial Intelligence
- Agents
- Command Line Interface
- Lead Generation
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- aid: landbase:landbase-platform-api
  name: Landbase Platform API
  description: The Landbase cloud gateway that landbase-cli calls in platform mode. It backs natural-language audience search
    and agent runs, dataset upload/lineage/download, record match, synchronous person/company enrichment, asynchronous contact
    (email/phone) enrichment, dataset workflows (onboard, match, enrich, publish, sketch, transform, dedupe, qualify), account
    onboarding, contact import by tag, and email/LinkedIn campaign creation and launch. Landbase publishes no OpenAPI or other
    machine-readable description of this gateway; the command surface, error-code registry, output schemas and field reference
    are documented in prose for the CLI instead.
  humanURL: https://www.landbase.com/docs
  baseURL: https://api.landbase.com
  tags:
  - Go-To-Market
  - B2B Data
  - Data Enrichment
  - Agents
  tags_raw:
  - Go To Market
  - B2B Data
  - Data Enrichment
  - Agents
  properties:
  - type: Documentation
    url: https://www.landbase.com/docs
  - type: APIReference
    url: https://www.landbase.com/docs/reference/search
  - type: GettingStarted
    url: https://www.landbase.com/docs/quickstart
  - type: Authentication
    url: authentication/landbase-authentication.yml
  - type: ErrorCatalog
    url: errors/landbase-error-codes.yml
  - type: Conventions
    url: conventions/landbase-conventions.yml
  - type: Idempotency
    url: conventions/landbase-conventions.yml
  - type: RateLimits
    url: rate-limits/landbase-rate-limits.yml
common:
- type: Website
  url: https://www.landbase.com/
- type: DeveloperPortal
  url: https://docs.landbase.com/
- type: Documentation
  url: https://www.landbase.com/docs
- type: APIReference
  url: https://www.landbase.com/docs/reference/search
- type: GettingStarted
  url: https://www.landbase.com/docs/quickstart
- type: Blog
  url: https://www.landbase.com/blog
- type: Support
  url: https://support.landbase.com/landbase/directories
- type: GitHubOrganization
  url: https://github.com/landbaseapp
- type: Pricing
  url: https://www.landbase.com/pricing
- type: SignUp
  url: https://accounts.landbase.com/sign-up
- type: Login
  url: https://accounts.landbase.com/sign-in
- type: TermsOfService
  url: https://www.landbase.com/legal/terms-of-service
- type: PrivacyPolicy
  url: https://www.landbase.com/legal/privacy-policy
- type: TrustCenter
  url: security/landbase-trust-center.yml
- type: LLMsTxt
  url: llms/landbase-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: CLI
  url: cli/landbase-cli.yml
- type: Packages
  url: packages/landbase-packages.yml
- type: ChangeLog
  url: changelog/landbase-changelog.yml
- type: Lifecycle
  url: lifecycle/landbase-lifecycle.yml
- type: Authentication
  url: authentication/landbase-authentication.yml
- type: Conventions
  url: conventions/landbase-conventions.yml
- type: Idempotency
  url: conventions/landbase-conventions.yml
- type: ErrorCatalog
  url: errors/landbase-error-codes.yml
- type: Conformance
  url: conformance/landbase-conformance.yml
- type: WellKnown
  url: well-known/landbase-well-known.yml
- type: DomainSecurity
  url: security/landbase-domain-security.yml
- type: Plans
  url: plans/landbase-plans-pricing.yml
- type: RateLimits
  url: rate-limits/landbase-rate-limits.yml
x-enrichment:
  date: '2026-08-23'
  status: enriched
  artifacts_added: 44
  pass: local-v1

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