pieterpost-com

PieterPost provides an online service that enables users to compose letters and postcards in a web interface or upload PDF/image files, then have them printed, stamped, and mailed through postal partners. The platform handles address entry, bulk mailing, and offers API endpoints for creating orders, adding test credits, checking order status, and managing address books, eliminating the need for physical stamps or visits to a post office. It serves both personal and business communications, supporting international delivery and offering features such as registered mail, tracking, and secure handling of content.

pieterpost-com is listed with 1 API on the APIs.io network. Tagged areas include Mail, Postal, Printing, API, and Letters.

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

pieterpost-com’s developer surface includes changelog, authentication, signup flow, documentation, API reference, getting-started guide, support, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

39.2/100 thin Agent 29/100 agent aware Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →

1 API 5 Agent Skills

Mail Postal PrintingAPILetters Postcards

Kin Score

Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0

Composite quality — 39.2/100 · thin

Contract Quality 5.4 / 21

Developer Ergonomics 8.8 / 17

Access Clarity 5.8 / 17

Operational Transparency 2.9 / 11

Contract Governance 2.2 / 10

Discoverability 5.0 / 9

Regulatory Posture 6.0 / 15

Agent readiness — 29/100 · agent aware

Machine-Readable Contract 18 / 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 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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

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/.

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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
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
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)

8 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 25.2 — up to +18.7 composite points
Access Clarity scores 34.2 — up to +13.2 composite points
Developer Ergonomics scores 51.7 — up to +9.7 composite points

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.

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/pieterpost-com/apis.yml: open an issue on github.com/api-evangelist/pieterpost-com 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 →

APIs 1

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

pieterpost-com API

pieterpost-com API as documented publicly: 6 operations. Contract generated from the documentation by API Evangelist (2026-10-30); not the provider's own document.

Agent Skills 5

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

pieterpost-com-checkout-links

AGENT SKILL

pieterpost-com-credits

AGENT SKILL

pieterpost-com-orders

AGENT SKILL

pieterpost-com-uploads

AGENT SKILL

pieterpost-com-wallet

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Pieterpost Com Plans Pricing

0 plans

PLANS

Semantic Vocabularies 1

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

Pieterpost Com Context

7 classes · 40 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

pieterpost-com API Rules

12 rules · 10 errors 1 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

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.

Pieterpost Com Openapi Overlay

0 actions · update · pieterpost-com-openapi-generated.yml

UNRECORDED

JSON Schema 6

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

GetV1OrdersOrderidResponse

6 properties

JSON SCHEMA

GetV1WalletResponse

7 properties

JSON SCHEMA

PostV1CheckoutLinksRequest

5 properties

JSON SCHEMA

PostV1CreditsTopupsResponse

10 properties

JSON SCHEMA

PostV1OrdersRequest

5 properties

JSON SCHEMA

PostV1OrdersResponse

21 properties

JSON SCHEMA

Security Posture 3

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

Pieterpost Com Authentication

1 scheme

SECURITY

Pieterpost Com Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Pieterpost Com Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Pieterpost Com Scopes

OAuth 2.0 · no documented scopes

0 scopes

SCOPES

Resources

Get Started 2

Portal, sign-up, and the first successful call

SignUp

SignUp

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

WellKnown

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Idempotency

Conventions

Conformance

Scroll for all 7

Access & Security 6

Authentication, authorization, and security posture

Security

Authentication

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

ChangeLog

ChangeLog

Support

Support

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Newsroom

Newsroom

Website

Website

Other 1

Properties that don't map to a standard resource type

Hosts

Hosts

Source (apis.yml)

aid: pieterpost-com
name: pieterpost-com
description: PieterPost provides an online service that enables users to compose letters and postcards in a web interface
  or upload PDF/image files, then have them printed, stamped, and mailed through postal partners. The platform handles address
  entry, bulk mailing, and offers API endpoints for creating orders, adding test credits, checking order status, and managing
  address books, eliminating the need for physical stamps or visits to a post office. It serves both personal and business
  communications, supporting international delivery and offering features such as registered mail, tracking, and secure handling
  of content.
url: https://artifacts.apis.io/pieterpost-com/apis.yml
image: https://pieterpost.com/svgs/pieterpost_stamp.svg
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-30 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-30'
modified: '2026-10-30'
tags:
- Mail
- Postal
- Printing
- API
- Letters
- Postcards
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/pieterpost-com-rules.yml
- type: JSONLD
  url: json-ld/pieterpost-com-context.jsonld
- type: Vocabulary
  url: vocabulary/pieterpost-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: DataModel
  url: data-model/pieterpost-com-data-model.yml
- type: ChangeLog
  url: changelog/pieterpost-com-changelog.yml
- type: Idempotency
  url: conventions/pieterpost-com-conventions.yml
- type: Conventions
  url: conventions/pieterpost-com-conventions.yml
- type: Security
  url: security/pieterpost-com-vulnerability-disclosure.yml
- type: Authentication
  url: authentication/pieterpost-com-authentication.yml
- type: Conformance
  url: conformance/pieterpost-com-conformance.yml
- type: LLMsTxt
  url: llms/pieterpost-com-llms.txt
- type: SecurityTxt
  url: well-known/pieterpost-com-security.txt
- type: SecurityTxt
  url: well-known/pieterpost-com-partner-security.txt
- type: WellKnown
  url: well-known/pieterpost-com-well-known.yml
- type: Hosts
  url: hosts/pieterpost-com-hosts.yml
- type: SignUp
  url: https://pieterpost.com/en/registered-mail-delivery-times/
- type: Newsroom
  url: https://pieterpost.com/en/press/
- type: ChangeLog
  url: https://pieterpost.com/en/changelog/
- type: VulnerabilityDisclosure
  url: security/pieterpost-com-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/pieterpost-com-domain-security.yml
- type: Website
  url: https://pieterpost.com/
- type: Documentation
  url: https://pieterpost.com/api/docs.md
- type: APIReference
  url: https://pieterpost.com/api/
- type: GettingStarted
  url: https://pieterpost.com/api/docs.md
- type: Support
  url: https://pieterpost.com/en/help/
- type: TermsOfService
  url: https://pieterpost.com/en/terms/
- type: PrivacyPolicy
  url: https://pieterpost.com/en/privacy/
apis:
- aid: pieterpost-com:pieterpost-com-api
  name: pieterpost-com API
  description: 'pieterpost-com API as documented publicly: 6 operations. Contract generated from the documentation by API
    Evangelist (2026-10-30); not the provider''s own document.'
  humanURL: https://pieterpost.com/api
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/pieterpost-com-openapi-generated.yml
    x-provenance: generated
  - type: JSONSchema
    url: json-schema/pieterpost-com-post-v1-orders-response-schema.json
  - type: JSONSchema
    url: json-schema/pieterpost-com-get-v1-orders-orderid-response-schema.json
  - type: JSONSchema
    url: json-schema/pieterpost-com-post-v1-orders-request-schema.json
  - type: JSONSchema
    url: json-schema/pieterpost-com-post-v1-credits-topups-response-schema.json
  - type: JSONSchema
    url: json-schema/pieterpost-com-post-v1-checkout-links-request-schema.json
  - type: JSONSchema
    url: json-schema/pieterpost-com-get-v1-wallet-response-schema.json
x-enrichment:
  date: '2026-10-30'
  status: enriched
  artifacts_added: 42
  pass: modular-v1
  engine: identity=oss,contract=oss,surfaces=oss,docs=oss,regulatory=oss

pieterpost-com API — frequently asked questions

Does pieterpost-com have an API?

Yes. APIs.io lists 1 API from pieterpost-com, including pieterpost-com API.

Is there an OpenAPI specification for the pieterpost-com API?

Yes. APIs.io indexes 1 OpenAPI specification for pieterpost-com, each linked for download from this page.

How do I authenticate with the pieterpost-com API?

pieterpost-com uses bearer-token authentication (1 scheme). The details are profiled on APIs.io as Pieterpost Com Authentication.

Is the pieterpost-com API ready for AI agents?

pieterpost-com has a Kin Score of 39.2 out of 100 (thin) and an Agent Readiness score of 28.5 (agent-aware), scored by API Evangelist on 2026-10-31.

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