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

44.3/100 developing ▬ flat Agent 19/100 agent aware saas Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0

AccessPaidOpen

1 APIs 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 2026-09-14 · rubric v0.22.0

Composite quality — 44.3/100 · developing

Contract Quality 0.0 / 25

Developer Ergonomics 13.3 / 20

Access Clarity 16.8 / 20

Operational Transparency 6.5 / 13

Contract Governance 0.0 / 12

Discoverability 7.6 / 10

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

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.

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'
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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