Postalytics

Postalytics is a direct mail automation platform with a REST API for creating and sending personalized postcards and letters with real-time mail tracking and analytics. The API enables programmatic campaign management for triggered drip campaigns and batch smart-send mailings, with supported SDKs in Python, Node.js, Rust, Java, Go, and C#.

Postalytics publishes 1 API on the APIs.io network. Tagged areas include Direct Mail, Postcards, Letters, Mail Automation, and Print.

The Postalytics catalog on APIs.io includes 1 JSON-LD context.

Postalytics’ developer surface includes documentation, engineering blog, pricing, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

31.3/100 thin ▬ flat Agent 16/100 agent aware saas Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0

AccessFreemium

1 APIs

Direct Mail Postcards LettersMail AutomationPrint Tracking Analytics

Kin Score

Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0

Composite quality — 31.3/100 · thin

Contract Quality 9.3 / 25

Developer Ergonomics 2.4 / 20

Access Clarity 10.0 / 20

Operational Transparency 2.7 / 13

Contract Governance 0.0 / 12

Discoverability 6.9 / 10

Agent readiness — 16/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 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/postalytics: 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.

Postalytics API

REST API for creating and sending personalized postcards and letters, managing contact lists, tracking delivery, and automating direct mail campaigns with webhook support.

Pricing Plans 1

Published pricing tiers and plan structures.

Postalytics Plans Pricing

4 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Postalytics Rate Limits

0 limits

RATE LIMITS

FinOps 1

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

Postalytics Finops

FINOPS

Semantic Vocabularies 1

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

Postalytics Context

21 classes · 2 properties

JSON-LD

Security Posture 1

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

Postalytics Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrg

GitHubOrg

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: postalytics
name: Postalytics
description: Postalytics is a direct mail automation platform with a REST API for creating and sending personalized postcards
  and letters with real-time mail tracking and analytics. The API enables programmatic campaign management for triggered drip
  campaigns and batch smart-send mailings, with supported SDKs in Python, Node.js, Rust, Java, Go, and C#.
type: Index
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: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/postalytics.png
url: https://raw.githubusercontent.com/api-evangelist/postalytics/refs/heads/main/apis.yml
created: 2026-06-13
modified: 2026-06-13
specificationVersion: '0.23'
tags:
- Direct Mail
- Postcards
- Letters
- Mail Automation
- Print
- Tracking
- Analytics
apis:
- aid: postalytics:postalytics-api
  name: Postalytics API
  description: REST API for creating and sending personalized postcards and letters, managing contact lists, tracking delivery,
    and automating direct mail campaigns with webhook support.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://www.postalytics.com/tools/direct-mail-api/
  baseURL: https://api.postalytics.com
  tags:
  - Direct Mail
  - Postcards
  - Letters
  - REST API
  - Webhook
  - Tracking
  tags_raw:
  - Direct Mail
  - Postcards
  - Letters
  - REST API
  - Webhooks
  - Tracking
  properties:
  - type: Documentation
    url: https://docs.postalytics.com/
  - type: OpenAPI
    url: https://docs.postalytics.com/
common:
- type: DomainSecurity
  url: security/postalytics-domain-security.yml
- type: Website
  url: https://www.postalytics.com/
- type: Documentation
  url: https://docs.postalytics.com/
- type: GitHubOrg
  url: https://github.com/postalytics
- type: LinkedIn
  url: https://www.linkedin.com/company/postalytics
- type: Blog
  url: https://www.postalytics.com/blog/
- type: Pricing
  url: https://www.postalytics.com/direct-mail-pricing/
- type: StatusPage
  url: https://status.postalytics.com/
- type: X
  url: https://twitter.com/postalytics
- type: Plans
  url: plans/postalytics-plans-pricing.yml
- type: RateLimits
  url: rate-limits/postalytics-rate-limits.yml
- type: FinOps
  url: finops/postalytics-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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