Flash Express

Flash Express is a Bangkok-headquartered express parcel delivery and e-commerce logistics operator serving Thailand, with affiliated operations in the Philippines and Laos. It runs door-to-door pickup and last-mile delivery for B2B, B2C and C2C shippers, including next-day and weekend delivery, bulky and fruit shipping, cash-on-delivery collection with daily settlement, parcel insurance, and a nationwide network of branches and drop-off points. For merchants and platform integrators Flash Express publishes the FlashExpress Open API, an HTTPS/POST, form-urlencoded, SHA256-signed interface covering warehouse and sub-account management, order creation and modification, label printing, freight-rate estimation, parcel tracking, courier pickup scheduling, and a webhook service that pushes status, weight, price, courier and route events back to the merchant.

Flash Express publishes 1 API on the APIs.io network. Tagged areas include Company, Logistics, Shipping, Delivery, and Parcel Tracking.

The Flash Express catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Flash Express’ developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 20 more developer resources.

🌐 Visit website 📡 Source on GitHub
46.1/100 developing ▬ flat Agent 41/100 agent ready Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
1 APIs
CompanyLogisticsShippingDeliveryParcel TrackingE-CommerceLast MileCourierCash on DeliveryThailandSoutheast AsiaWebhooks

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 46.1/100 · developing
Contract Quality 12.9 / 25
Developer Ergonomics 13.0 / 20
Commercial Clarity 8.9 / 20
Operational Transparency 1.0 / 13
Governance 1.5 / 12
Discoverability 8.7 / 10
Agent readiness — 41/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
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 7 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/flash-express: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

FlashExpress Open API

The FlashExpress Open API is the merchant-facing integration surface for Flash Express parcel logistics in Thailand. All calls are HTTPS POST with an application/x-www-form-urle...

Pricing Plans 1

Published pricing tiers and plan structures.

Flash Express Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Flash Express Rate Limits

0 limits

RATE LIMITS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Flash Express Webhooks

ASYNCAPI

Security Posture 2

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

Flash Express Authentication

signature · 1 scheme

SECURITY

Flash Express Domain Security

TLSv1.2 · HSTS · DMARC

SECURITY

Resources

Get Started 5

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Login
Login
 Sandbox
Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 Webhooks
Webhooks
 DataModel
DataModel
 Conformance
Conformance
 Lifecycle
Lifecycle

Build 2

SDKs, sample code, and the tooling you integrate with

Packages
Packages
 SDKs
SDKs

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 3

Status, limits, changes, and where to get help

Support
Support
 HelpCenter
HelpCenter
 RateLimits
RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Plans
Plans

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: flash-express
name: Flash Express
description: Flash Express is a Bangkok-headquartered express parcel delivery and e-commerce logistics operator serving Thailand,
  with affiliated operations in the Philippines and Laos. It runs door-to-door pickup and last-mile delivery for B2B, B2C
  and C2C shippers, including next-day and weekend delivery, bulky and fruit shipping, cash-on-delivery collection with daily
  settlement, parcel insurance, and a nationwide network of branches and drop-off points. For merchants and platform integrators
  Flash Express publishes the FlashExpress Open API, an HTTPS/POST, form-urlencoded, SHA256-signed interface covering warehouse
  and sub-account management, order creation and modification, label printing, freight-rate estimation, parcel tracking, courier
  pickup scheduling, and a webhook service that pushes status, weight, price, courier and route events back to the merchant.
image: https://flashexpress.com/favicon.ico
url: https://raw.githubusercontent.com/api-evangelist/flash-express/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-12'
modified: '2026-08-12'
tags:
- Company
- Logistics
- Shipping
- Delivery
- Parcel Tracking
- E-Commerce
- Last Mile
- Courier
- Cash on Delivery
- Thailand
- Southeast Asia
- Webhooks
apis:
- aid: flash-express-open-api
  name: FlashExpress Open API
  description: The FlashExpress Open API is the merchant-facing integration surface for Flash Express parcel logistics in
    Thailand. All calls are HTTPS POST with an application/x-www-form-urlencoded body and a JSON response envelope of code/message/data.
    Every request is authenticated with a merchant id (mchId), a random nonce string (nonceStr) and an uppercase SHA256 signature
    (sign) computed over the ASCII-sorted non-empty parameters joined with a merchant secret key issued by Flash Express support.
    The API covers warehouse listing, the Flash standard address/location tree, sub-account creation, order creation (including
    creation against a merchant-supplied tracking number), order modification and cancellation, single and batch parcel route
    tracking, delivered-proof retrieval, 100x180mm and 100x75mm label pre-print, freight-rate estimation, courier pickup notification
    scheduling and cancellation, and webhook subscription management.
  humanURL: https://open-docs.flashexpress.com/
  baseURL: https://open-api.flashexpress.com
  tags:
  - Shipping
  - Logistics
  - Parcel Tracking
  - Orders
  - Webhooks
  - Cash on Delivery
  properties:
  - type: Documentation
    url: https://open-docs.flashexpress.com/
  - type: APIReference
    url: https://open-docs.flashexpress.com/#api-reference
  - type: Authentication
    url: authentication/flash-express-authentication.yml
  - type: Conventions
    url: conventions/flash-express-conventions.yml
  - type: ErrorCatalog
    url: errors/flash-express-error-codes.yml
  - type: Webhooks
    url: asyncapi/flash-express-webhooks.yml
  - type: DataModel
    url: data-model/flash-express-data-model.yml
  - type: Sandbox
    url: sandbox/flash-express-sandbox.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/flash-express-domain-security.yml
- type: Website
  url: https://flashexpress.com/en/
- type: DeveloperPortal
  url: https://open-docs.flashexpress.com/
- type: Documentation
  url: https://open-docs.flashexpress.com/
- type: APIReference
  url: https://open-docs.flashexpress.com/#api-reference
- type: GettingStarted
  url: https://open-docs.flashexpress.com/#the-basic-standard
- type: Support
  url: https://flashexpress.com/fle/contact-us
- type: HelpCenter
  url: https://flashexpress.com/fle/faq
- type: Blog
  url: https://flashexpress.com/fle/news/
- type: Pricing
  url: https://flashexpress.com/fle/check-price
- type: SignUp
  url: https://flashexpress.com/fle/register
- type: Login
  url: https://flashexpress.com/fle/login
- type: TermsOfService
  url: https://flashexpress.com/fle/our-service/service-agreement/company-agreement
- type: PrivacyPolicy
  url: https://flashexpress.com/fle/our-service/service-agreement/privacy-policy
- type: Packages
  url: packages/flash-express-packages.yml
- type: SDKs
  url: packages/flash-express-packages.yml
- type: Authentication
  url: authentication/flash-express-authentication.yml
- type: Conventions
  url: conventions/flash-express-conventions.yml
- type: ErrorCatalog
  url: errors/flash-express-error-codes.yml
- type: Webhooks
  url: asyncapi/flash-express-webhooks.yml
- type: DataModel
  url: data-model/flash-express-data-model.yml
- type: Sandbox
  url: sandbox/flash-express-sandbox.yml
- type: Conformance
  url: conformance/flash-express-conformance.yml
- type: Lifecycle
  url: lifecycle/flash-express-lifecycle.yml
- type: Plans
  url: plans/flash-express-plans-pricing.yml
- type: RateLimits
  url: rate-limits/flash-express-rate-limits.yml
- type: LLMsTxt
  url: llms/flash-express-llms.txt
x-enrichment:
  date: '2026-08-12'
  status: enriched
  artifacts_added: 14
  pass: local-v1