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 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

45.3/100 developing ▲ 9.4 Agent 41/100 agent native Heartbeat 98/100 alive Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract

Company Address Autocomplete Logistics Australia

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 45.3/100 · developing

Contract Quality 14.4 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 11.1 / 17

Operational Transparency 0.5 / 11

Contract Governance 2.0 / 10

Discoverability 6.4 / 9

Regulatory Posture 1.9 / 15

Agent readiness — 41/100 · agent native

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 12 / 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

MCP Tool Quality 6 / 6

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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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →
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) Ask about this →
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks Ask about this →

5 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 26.2 — up to +14.8 composite points Ask about this →
Operational Transparency scores 4.8 — up to +12.4 composite points Ask about this →
Contract Governance scores 19.7 — up to +9.6 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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

Standards implemented 2

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

OpenAPI

measured — observed by APIs.io (published)

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.

Terms of Service 1

What its API terms permit and prohibit, quoted from its own page.

Postfinder

11 quoted statements, read from Postfinder's own page on 2026-11-10.

TERMS

Privacy & Data 1

Its role, the data it processes, retention and transfers, quoted from its own privacy page.

Postfinder

25 quoted statements, read from Postfinder's own page on 2026-11-10.

PRIVACY

Eligibility 1

Who may sign up and where, quoted from its own terms.

Postfinder

1 quoted statement, read from Postfinder's own page on 2026-11-10.

ELIGIBILITY

AI Preferences 1

Its stance on AI training, inference and agents, quoted from its own pages.

Postfinder

1 quoted statement, read from Postfinder's own page on 2026-11-10.

AI PREFS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

Postfinder

3 quoted statements, read from Postfinder's own page on 2026-11-10.

LICENSE

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. Counts are the severity each rule declares, not results of running them.

Postfinder API Rules

14 rules · 13 error-severity 1 info-severity

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 Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Postfinder Agentic Access

12 operations

12 operations · 0 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

AIPreferences

AIPreferences

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

X-MCPManifest

X-MCPManifest

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 4

Pricing, plans, and the legal terms of use

TermsOfService

PrivacyPolicy

UsageTerms

DataLicense

Company 1

The organization behind the API

Website

Website

Other 4

Properties that don't map to a standard resource type

Hosts

Vendors

DataProcessing

Eligibility

Source (apis.yml)

aid: postfinder-io
name: Postfinder
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-13'
  method: derived
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: X-MCPManifest
  url: mcp/postfinder-io-hosted-mcp.yml
- 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/
- type: UsageTerms
  url: terms/postfinder-io-terms-of-service.yml
- type: DataProcessing
  url: privacy/postfinder-io-privacy-policy.yml
- type: Eligibility
  url: eligibility/postfinder-io-eligibility.yml
- type: AIPreferences
  url: ai-preferences/postfinder-io-ai-preferences.yml
- type: DataLicense
  url: data-license/postfinder-io-data-license.yml
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-nearby-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-countries-response-schema.json
  - type: JSONSchema
    url: json-schema/postfinder-io-category-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-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
- 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-search-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-enrichment:
  date: '2026-10-02'
  status: enriched
  artifacts_added: 17
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Postfinder API — frequently asked questions

Does Postfinder have an API?

Yes. APIs.io lists 5 APIs from Postfinder, including Postfinder Nearby API, Postfinder Places API and Postfinder Postcodes API, and 2 more.

Is there an OpenAPI specification for the Postfinder API?

Yes. APIs.io indexes 5 OpenAPI specifications for Postfinder, each linked for download from this page.

Is the Postfinder API ready for AI agents?

Postfinder has a Kin Score of 45.3 out of 100 (developing) and an Agent Readiness score of 41.4 (agent-native), scored by API Evangelist on 2026-11-13.

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