Postfinder

Postfinder provides an API for Australian address autocomplete and location lookup of post offices, parcel lockers, carrier drop‑off points and street post boxes. The service aggregates data from Australia Post, OpenStreetMap and carrier feeds, offering opening hours, addresses, maps and postcode lookup. Users can search by suburb, street address or postcode, and also browse locations by state or country, covering Australia, Canada, New Zealand, the United Kingdom and the United States. The API returns structured JSON suitable for integration into e‑commerce, logistics and mapping applications.

Postfinder publishes 5 API contracts indexed on the APIs.io network, including Nearby API, Places API, Postcodes API, and 2 more. Tagged areas include Company, Address, Autocomplete, Logistics, and Australia.

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

Postfinder’s developer surface includes documentation and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

43.1/100 developing ▬ flat Agent 32/100 agent ready Full breakdown ↓
scored 2026-10-23 · rubric v0.25.0 · Show this score on your site →

1 published contract

Company Address Autocomplete Logistics Australia

Kin Score

Kin Score How this is scored →
scored 2026-10-23 · rubric v0.25.0

Composite quality — 43.1/100 · developing

Contract Quality 13.2 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 9.7 / 17

Operational Transparency 0.6 / 11

Contract Governance 2.0 / 10

Discoverability 6.2 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 32/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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 4 / 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 does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

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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<a href="https://apis.io/providers/postfinder-io/"><img src="https://apis.io/badge/postfinder-io/card.svg" alt="Postfinder on APIs.io — Kin Score by API Evangelist"></a>

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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/postfinder-io: 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 5

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

Postfinder Nearby API

What is nearest a coordinate: the question most callers are asking.

Postfinder Places API

The directory as the site's pages have it: countries, regions, suburbs and places.

Postfinder Postcodes API

Postcode lookup, in both directions.

Postfinder Reference API

This document.

Postfinder Search API

Turn what somebody typed into a suburb or a place.

Semantic Vocabularies 1

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

Postfinder Io Context

37 classes · 59 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Postfinder API Rules

14 rules · 13 errors 1 info

SPECTRAL

JSON Schema 6

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

CategoryResponse

2 properties

JSON SCHEMA

CountriesResponse

2 properties

JSON SCHEMA

NearbyResponse

2 properties

JSON SCHEMA

PlacesResponse

3 properties

JSON SCHEMA

PostcodesResponse

2 properties

JSON SCHEMA

SearchResponse

2 properties

JSON SCHEMA

Security Posture 1

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

Postfinder Io Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Postfinder Io Agentic Access

12 operations

12 operations · 0 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

GitHubOrganization

GitHubOrganization

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: postfinder-io
name: Postfinder
image: https://postfinder.io/og.png
description: Postfinder provides an API for Australian address autocomplete and location lookup of post offices, parcel lockers,
  carrier drop‑off points and street post boxes. The service aggregates data from Australia Post, OpenStreetMap and carrier
  feeds, offering opening hours, addresses, maps and postcode lookup. Users can search by suburb, street address or postcode,
  and also browse locations by state or country, covering Australia, Canada, New Zealand, the United Kingdom and the United
  States. The API returns structured JSON suitable for integration into e‑commerce, logistics and mapping applications.
url: https://raw.githubusercontent.com/api-evangelist/postfinder-io/refs/heads/main/apis.yml
x-type: company
x-source: harvest:new-submission
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-02 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-02'
modified: '2026-10-02'
tags:
- Company
- Address
- Autocomplete
- Logistics
- Australia
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/postfinder-io-agentic-access.yml
- type: Spectral
  url: rules/postfinder-io-rules.yml
- type: JSONLD
  url: json-ld/postfinder-io-context.jsonld
- type: Vocabulary
  url: vocabulary/postfinder-io-vocabulary.yml
- type: DataModel
  url: data-model/postfinder-io-data-model.yml
- type: ErrorCatalog
  url: errors/postfinder-io-problem-types.yml
- type: Conformance
  url: conformance/postfinder-io-conformance.yml
- type: LLMsTxt
  url: llms/postfinder-io-llms.txt
- type: Hosts
  url: hosts/postfinder-io-hosts.yml
- type: Vendors
  url: vendors/postfinder-io-vendors.yml
- type: SDKs
  url: packages/postfinder-io-packages.yml
- type: Packages
  url: packages/postfinder-io-packages.yml
- type: TermsOfService
  url: https://postfinder.io/en/terms/
- type: PrivacyPolicy
  url: https://postfinder.io/en/privacy/
- type: DeveloperPortal
  url: https://api.postfinder.io<!--
- type: GitHubOrganization
  url: https://github.com/postfinder
- type: DomainSecurity
  url: security/postfinder-io-domain-security.yml
- type: Website
  url: https://postfinder.io/
- type: Documentation
  url: https://postfinder.io/api/
apis:
- aid: postfinder-io:postfinder-io-nearby-api
  name: Postfinder Nearby API
  description: 'What is nearest a coordinate: the question most callers are asking.'
  humanURL: https://postfinder.io/api/
  baseURL: https://api.postfinder.io
  tags:
  - Nearby
  properties:
  - type: OpenAPI
    url: openapi/postfinder-io-nearby-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postfinder-io-places-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-nearby-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-search-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-countries-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-category-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-postcodes-response-schema.json
- aid: postfinder-io:postfinder-io-places-api
  name: Postfinder Places API
  description: 'The directory as the site''s pages have it: countries, regions, suburbs and places.'
  humanURL: https://postfinder.io/api/
  baseURL: https://api.postfinder.io
  tags:
  - Places
  properties:
  - type: OpenAPI
    url: openapi/postfinder-io-places-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postfinder-io-places-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-nearby-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-search-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-countries-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-category-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-postcodes-response-schema.json
- aid: postfinder-io:postfinder-io-postcodes-api
  name: Postfinder Postcodes API
  description: Postcode lookup, in both directions.
  humanURL: https://postfinder.io/api/
  baseURL: https://api.postfinder.io
  tags:
  - Postcodes
  properties:
  - type: OpenAPI
    url: openapi/postfinder-io-postcodes-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postfinder-io-places-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-nearby-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-search-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-countries-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-category-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-postcodes-response-schema.json
- aid: postfinder-io:postfinder-io-reference-api
  name: Postfinder Reference API
  description: This document.
  humanURL: https://postfinder.io/api/
  baseURL: https://api.postfinder.io
  tags:
  - Reference
  properties:
  - type: OpenAPI
    url: openapi/postfinder-io-reference-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postfinder-io-places-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-nearby-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-search-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-countries-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-category-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-postcodes-response-schema.json
- aid: postfinder-io:postfinder-io-search-api
  name: Postfinder Search API
  description: Turn what somebody typed into a suburb or a place.
  humanURL: https://postfinder.io/api/
  baseURL: https://api.postfinder.io
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/postfinder-io-search-api-openapi.yml
  - type: JSONSchema
    url: json-schema/postfinder-io-places-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-nearby-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-search-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-countries-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-category-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-postcodes-response-schema.json
x-submission-notes: Australian address autocomplete and post office / parcel locker location API.
x-submission-probe: root 200; /api/ 200; api.postfinder.io/v1/openapi.json OpenAPI 3.1.0 12 paths; /v1/search 200 JSON; llms.txt
  200; 404 probe 404
x-submitted-by: postmaster@postfinder.io (apis.io/add, 2026-10-02)
x-enrichment:
  date: '2026-10-02'
  status: enriched
  artifacts_added: 17
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

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