PostEx

PostEx is a Pakistani e-commerce logistics, courier, and fintech platform that provides cash-on-delivery parcel fulfilment with instant upfront payments to online merchants, alongside a business suite for expense management, working- capital financing, and the XPay payment gateway. Merchants and order- management systems integrate with PostEx through its merchant Order Integration API (https://api.postex.pk) to book shipments, look up operational cities and pickup addresses, track parcels, and reconcile orders. This profile was enriched by API Evangelist by live-probing the production API host, which confirmed a real merchant integration surface authenticated with a token request header. PostEx is backed by 500 Global.

PostEx publishes 2 API contracts indexed on the APIs.io network: Orders API and Reference API. Tagged areas include Company, Logistics, Couriers, Shipping, and E-Commerce.

The PostEx catalog on APIs.io includes 1 Spectral governance ruleset.

PostEx’s developer surface includes engineering blog, authentication, and 7 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

23.2/100 emerging ▬ flat Agent 21/100 agent aware Front door AI 1/6 silent Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 1 Agent Skills

Company Logistics Couriers Shipping E-Commerce FulfillmentCash on DeliveryPayments Fintech Pakistan

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 23.2/100 · emerging

Contract Quality 9.4 / 19

Developer Ergonomics 2.4 / 15

Access Clarity 0.0 / 15

Operational Transparency 0.0 / 10

Contract Governance 1.6 / 9

Discoverability 5.0 / 8

Regulatory Posture 2.3 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 21/100 · 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 0 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 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

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments 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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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

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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
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link

9 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 16.1 — up to +16.8 composite points
Operational Transparency scores 0.0 — up to +13.0 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/postex/apis.yml: open an issue on github.com/api-evangelist/postex 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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 2

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

PostEx Orders API

Booking, tracking, and listing shipment orders

PostEx Reference API

Operational cities and merchant address reference data

Open Collections 2

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

PostEx Merchant Order Integration Orders API

OPEN COLLECTION

PostEx Merchant Order Integration Orders Reference API

OPEN COLLECTION

Agent Skills 1

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

Book and track a PostEx shipment

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

PostEx API Rules

60 rules · 58 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.

Postex Order Overlay

2 actions · update · postex-order-openapi.yml

DERIVED

Security Posture 2

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

Postex Authentication

apiKey · 1 scheme

SECURITY

Postex Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

X-MCPServerCandidate

LLMsTxt

WellKnown

AgentSkill

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Company 2

The organization behind the API

Blog

Blog

Website

Website

Other 1

Properties that don't map to a standard resource type

Overlay

Overlay

Source (apis.yml)

aid: postex
name: PostEx
description: PostEx is a Pakistani e-commerce logistics, courier, and fintech platform that provides cash-on-delivery parcel
  fulfilment with instant upfront payments to online merchants, alongside a business suite for expense management, working-
  capital financing, and the XPay payment gateway. Merchants and order- management systems integrate with PostEx through its
  merchant Order Integration API (https://api.postex.pk) to book shipments, look up operational cities and pickup addresses,
  track parcels, and reconcile orders. This profile was enriched by API Evangelist by live-probing the production API host,
  which confirmed a real merchant integration surface authenticated with a token request header. PostEx is backed by 500 Global.
url: https://raw.githubusercontent.com/api-evangelist/postex/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://postex.pk/favicon.ico
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
tags:
- Company
- Logistics
- Couriers
- Shipping
- E-Commerce
- Fulfillment
- Cash on Delivery
- Payments
- Fintech
- Pakistan
tags_raw:
- Company
- Logistics
- Courier
- Shipping
- E-commerce
- Fulfillment
- Cash on Delivery
- Payments
- Fintech
- Pakistan
apis:
- aid: postex:postex-orders-api
  name: PostEx Orders API
  description: Booking, tracking, and listing shipment orders
  humanURL: https://postex.pk
  baseURL: https://api.postex.pk/services/integration/api/order
  tags:
  - Order
  tags_raw:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/postex-orders-api-openapi.yml
  - type: Authentication
    url: authentication/postex-authentication.yml
  - type: ErrorCatalog
    url: errors/postex-error-codes.yml
  - type: Conventions
    url: conventions/postex-conventions.yml
  - type: Conformance
    url: conformance/postex-conformance.yml
  - type: Lifecycle
    url: lifecycle/postex-lifecycle.yml
  - type: DataModel
    url: data-model/postex-data-model.yml
- aid: postex:postex-reference-api
  name: PostEx Reference API
  description: Operational cities and merchant address reference data
  humanURL: https://postex.pk
  baseURL: https://api.postex.pk/services/integration/api/order
  tags:
  - Reference
  properties:
  - type: OpenAPI
    url: openapi/postex-reference-api-openapi.yml
  - type: Authentication
    url: authentication/postex-authentication.yml
  - type: ErrorCatalog
    url: errors/postex-error-codes.yml
  - type: Conventions
    url: conventions/postex-conventions.yml
  - type: Conformance
    url: conformance/postex-conformance.yml
  - type: Lifecycle
    url: lifecycle/postex-lifecycle.yml
  - type: DataModel
    url: data-model/postex-data-model.yml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 14
  pass: local-v1
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://postex.pk/blogs
  type: Blog
- type: Overlay
  url: overlays/postex-order-overlay.yaml
- type: DomainSecurity
  url: security/postex-domain-security.yml
- type: Website
  url: https://postex.pk
- type: X-MCPServerCandidate
  url: mcp/postex-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/postex-llms.txt
- type: WellKnown
  url: well-known/postex-well-known.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Authentication
  url: authentication/postex-authentication.yml

PostEx API — frequently asked questions

Does PostEx have an API?

Yes. APIs.io lists 2 APIs from PostEx, including PostEx Orders API and PostEx Reference API.

Is there an OpenAPI specification for the PostEx API?

Yes. APIs.io indexes 2 OpenAPI specifications for PostEx, each linked for download from this page.

How do I authenticate with the PostEx API?

PostEx uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Postex Authentication.

Is the PostEx API ready for AI agents?

PostEx has a Kin Score of 23.2 out of 100 (emerging) and an Agent Readiness score of 21.0 (agent-aware), scored by API Evangelist on 2026-11-06.

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