BuyWhere

Agent-native, MCP-native product catalog and price comparison API for Southeast Asia and US e-commerce. Search 1.5M+ products across Shopee, Lazada, Carousell, FairPrice, Best Denki, Amazon, Walmart, Best Buy, and 20+ retailers. AI agents and MCP clients discover and route purchases to local merchants through a hosted MCP HTTP endpoint at api.buywhere.ai/mcp or via the @buywhere/mcp-server STDIO package.

BuyWhere publishes 3 API contracts indexed on the APIs.io network: Authentication API, Categories API, and Products API. Tagged areas include E-Commerce, Shopping, Price Comparison, SEA, and Southeast Asia.

The BuyWhere catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

BuyWhere’s developer surface includes authentication, documentation, GitHub presence, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

34.4/100 thin ▼ -8.3 Agent 35/100 agent ready Front door AI 6/6 dominant Full breakdown ↓
scored 2026-10-17 · rubric v0.24.0

AccessFreemiumSelf serve⚡ Free to try

1 published contract 1 MCP Servers

E-Commerce Shopping Price ComparisonSEASoutheast Asia AI Agents Product Catalog A2A

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Developer Platform & API Ecosystem Management

BC-4270

Authentication

POST /auth/register

Kin Score

Kin Score How this is scored →
scored 2026-10-17 · rubric v0.24.0

Composite quality — 34.4/100 · thin

Contract Quality 12.4 / 19

Developer Ergonomics 3.2 / 15

Access Clarity 1.2 / 15

Operational Transparency 1.3 / 10

Contract Governance 2.5 / 9

Discoverability 5.6 / 8

Regulatory Posture 2.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 35/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 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

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 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/.

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/buywhere: 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
AI Agents (A2A agent cards)	undeclared	-	1	1

Remote MCP server at mcp.buywhere.ai over HTTP; 13 tools listed.

MCP SERVER

Pricing Plans 1

Published pricing tiers and plan structures.

Buywhere Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Buywhere Rate Limits

4 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Buywhere Finops

FINOPS

Semantic Vocabularies 1

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

Buywhere Context

25 classes · 4 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

BuyWhere — jsonschema rules

5 rules · 4 warnings 1 info

SPECTRAL

BuyWhere API Rules

14 rules · 3 errors 9 warnings 2 info

SPECTRAL

JSON Schema 4

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

BuyWhere Category

4 properties

JSON SCHEMA

BuyWhere Offer

TLSv1.3 · DMARC

SECURITY

Agentic Access 1

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

Buywhere Agentic Access

8 operations · 1 acting

AGENTIC

Resources

Documentation 3

Reference material describing how the API behaves

Documentation

Documentation

MCPDocumentation

MCPDocumentation

OpenAPI

OpenAPI

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

MCPEndpoint

MCPEndpoint

LlmsText

LlmsText

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Vocabulary

Vocabulary

JSONLD

JSONLD

Build 3

SDKs, sample code, and the tooling you integrate with

PluginManifest

PluginManifest

GitHub

GitHub

GitHub

GitHub

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 2

The organization behind the API

Website

Website

Website

Website

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

AgentCard

AgentCard

Source (apis.yml)

aid: buywhere
url: https://raw.githubusercontent.com/api-evangelist/buywhere/refs/heads/main/apis.yml
name: BuyWhere
type: Index
deliveryModel:
  model: unknown
  license_evidence:
    repo: buywhere/buywhere
    spdx: none
    stars: 1
  open_source: unknown
  commercial: true
  callable_host: true
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - openapi
  - pricing
  - repository-unlicensed
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-09-03'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
description: Agent-native, MCP-native product catalog and price comparison API for Southeast Asia and US e-commerce. Search
  1.5M+ products across Shopee, Lazada, Carousell, FairPrice, Best Denki, Amazon, Walmart, Best Buy, and 20+ retailers. AI
  agents and MCP clients discover and route purchases to local merchants through a hosted MCP HTTP endpoint at api.buywhere.ai/mcp
  or via the @buywhere/mcp-server STDIO package.
created: '2026-05-16'
modified: '2026-05-19'
specificationVersion: '0.23'
position: Consuming
access: 3rd-Party
tags:
- E-Commerce
- Shopping
- Price Comparison
- SEA
- Southeast Asia
- AI Agents
- Product Catalog
- A2A
tags_raw:
- E-commerce
- Shopping
- Price Comparison
- SEA
- Southeast Asia
- AI Agents
- Product Catalog
- A2A
apis:
- aid: buywhere:buywhere-authentication-api
  name: BuyWhere Authentication API
  description: Agent registration and API key issuance.
  humanURL: https://api.buywhere.ai/
  baseURL: https://api.buywhere.ai/v1
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/buywhere-authentication-api-openapi.yml
  - type: Documentation
    url: https://api.buywhere.ai/
  - type: MCPDocumentation
    url: https://api.buywhere.ai/docs/guides/mcp
  - type: MCPEndpoint
    url: https://api.buywhere.ai/mcp
  - type: PluginManifest
    url: https://api.buywhere.ai/.well-known/ai-plugin.json
  - type: LlmsText
    url: https://api.buywhere.ai/llms.txt
  - type: JSONSchema
    url: json-schema/buywhere-product-schema.json
  - type: JSONSchema
    url: json-schema/buywhere-offer-schema.json
  - type: JSONSchema
    url: json-schema/buywhere-price-history-schema.json
  - type: JSONSchema
    url: json-schema/buywhere-category-schema.json
  - type: JSONStructure
    url: json-structure/buywhere-product-structure.json
  - type: JSONStructure
    url: json-structure/buywhere-offer-structure.json
  - type: SpectralRules
    url: rules/buywhere-rules.yml
  - type: Examples
    url: examples/buywhere-searchProducts-example.json
  - type: Examples
    url: examples/buywhere-getDeals-example.json
  - type: Examples
    url: examples/buywhere-compareProducts-example.json
  - type: Examples
    url: examples/buywhere-getProduct-example.json
  - type: Examples
    url: examples/buywhere-getProductPrices-example.json
  - type: Examples
    url: examples/buywhere-listCategories-example.json
  - type: Examples
    url: examples/buywhere-getCategoryProducts-example.json
  - type: Examples
    url: examples/buywhere-registerAgent-example.json
  - type: Examples
    url: examples/buywhere-mcp-tools-call-example.json
- aid: buywhere:buywhere-categories-api
  name: BuyWhere Categories API
  description: Product taxonomy and category browsing.
  humanURL: https://api.buywhere.ai/
  baseURL: https://api.buywhere.ai/v1
  tags:
  - Categories
  properties:
  - type: OpenAPI
    url: openapi/buywhere-categories-api-openapi.yml
  - type: Documentation
    url: https://api.buywhere.ai/
  - type: MCPDocumentation
    url: https://api.buywhere.ai/docs/guides/mcp
  - type: MCPEndpoint
    url: https://api.buywhere.ai/mcp
  - type: PluginManifest
    url: https://api.buywhere.ai/.well-known/ai-plugin.json
  - type: LlmsText
    url: https://api.buywhere.ai/llms.txt
  - type: JSONSchema
    url: json-schema/buywhere-product-schema.json
  - type: JSONSchema
    url: json-schema/buywhere-offer-schema.json
  - type: JSONSchema
    url: json-schema/buywhere-price-history-schema.json
  - type: JSONSchema
    url: json-schema/buywhere-category-schema.json
  - type: JSONStructure
    url: json-structure/buywhere-product-structure.json
  - type: JSONStructure
    url: json-structure/buywhere-offer-structure.json
  - type: SpectralRules
    url: rules/buywhere-rules.yml
  - type: Examples
    url: examples/buywhere-searchProducts-example.json
  - type: Examples
    url: examples/buywhere-getDeals-example.json
  - type: Examples
    url: examples/buywhere-compareProducts-example.json
  - type: Examples
    url: examples/buywhere-getProduct-example.json
  - type: Examples
    url: examples/buywhere-getProductPrices-example.json
  - type: Examples
    url: examples/buywhere-listCategories-example.json
  - type: Examples
    url: examples/buywhere-getCategoryProducts-example.json
  - type: Examples
    url: examples/buywhere-registerAgent-example.json
  - type: Examples
    url: examples/buywhere-mcp-tools-call-example.json
- aid: buywhere:buywhere-products-api
  name: BuyWhere Products API
  description: Product search, lookup, comparison, deals, and price history.
  humanURL: https://api.buywhere.ai/
  baseURL: https://api.buywhere.ai/v1
  tags:
  - Product
  tags_raw:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/buywhere-products-api-openapi.yml
  - type: Documentation
    url: https://api.buywhere.ai/
  - type: MCPDocumentation
    url: https://api.buywhere.ai/docs/guides/mcp
  - type: MCPEndpoint
    url: https://api.buywhere.ai/mcp
  - type: PluginManifest
    url: https://api.buywhere.ai/.well-known/ai-plugin.json
  - type: LlmsText
    url: https://api.buywhere.ai/llms.txt
  - type: JSONSchema
    url: json-schema/buywhere-product-schema.json
  - type: JSONSchema
    url: json-schema/buywhere-offer-schema.json
  - type: JSONSchema
    url: json-schema/buywhere-price-history-schema.json
  - type: JSONSchema
    url: json-schema/buywhere-category-schema.json
  - type: JSONStructure
    url: json-structure/buywhere-product-structure.json
  - type: JSONStructure
    url: json-structure/buywhere-offer-structure.json
  - type: SpectralRules
    url: rules/buywhere-rules.yml
  - type: Examples
    url: examples/buywhere-searchProducts-example.json
  - type: Examples
    url: examples/buywhere-getDeals-example.json
  - type: Examples
    url: examples/buywhere-compareProducts-example.json
  - type: Examples
    url: examples/buywhere-getProduct-example.json
  - type: Examples
    url: examples/buywhere-getProductPrices-example.json
  - type: Examples
    url: examples/buywhere-listCategories-example.json
  - type: Examples
    url: examples/buywhere-getCategoryProducts-example.json
  - type: Examples
    url: examples/buywhere-registerAgent-example.json
  - type: Examples
    url: examples/buywhere-mcp-tools-call-example.json
sdks:
- name: BuyWhere MCP Server (Node)
  url: https://github.com/BuyWhere/buywhere-mcp
  type: SDKs
  language: JavaScript
  description: BuyWhere MCP server — search and compare products from SG, SEA, and US markets via Model Context Protocol.
- name: '@buywhere/mcp-server (npm)'
  url: https://www.npmjs.com/package/@buywhere/mcp-server
  type: SDKs
  language: JavaScript
  description: Published MCP STDIO server package — `npx -y @buywhere/mcp-server`.
- name: buywhere-py
  url: https://github.com/BuyWhere/buywhere-py
  type: SDKs
  language: Python
  description: Official Python SDK for the BuyWhere Product Catalog API.
- name: buywhere-llamaindex
  url: https://github.com/BuyWhere/buywhere-llamaindex
  type: SDKs
  language: Python
  description: LlamaIndex FunctionTool wrappers for the BuyWhere product catalog API.
- name: buywhere-cursor-plugin
  url: https://github.com/BuyWhere/buywhere-cursor-plugin
  type: SDKs
  language: Python
  description: BuyWhere MCP Tools for Cursor AI — product search, price comparison, and deals.
- name: buywhere-mcp-action
  url: https://github.com/BuyWhere/buywhere-mcp-action
  type: GitHubAction
  description: BuyWhere MCP Server packaged as a GitHub Action for product catalog access in workflows.
integrations:
- name: Claude Desktop
  type: MCPClient
  description: Configure under `mcpServers.buywhere` via STDIO (`npx -y @buywhere/mcp-server`) or hosted HTTP (`https://api.buywhere.ai/mcp`).
  url: https://api.buywhere.ai/docs/guides/mcp
- name: Cursor
  type: MCPClient
  description: Configure in `.cursor/mcp.json` with the BuyWhere MCP package and BUYWHERE_API_KEY env var.
  url: https://api.buywhere.ai/docs/guides/mcp
- name: LlamaIndex
  type: AIFramework
  description: FunctionTool wrappers via the buywhere-llamaindex package.
  url: https://github.com/BuyWhere/buywhere-llamaindex
- name: LangChain
  type: AIFramework
  description: BuyWhere MCP server docs proposed for LangChain documentation (PR in flight).
  url: https://github.com/BuyWhere/langchain-docs-pr
- name: Custom MCP HTTP clients
  type: MCPClient
  description: Any MCP-compatible client can call `POST https://api.buywhere.ai/mcp` with a Bearer token.
  url: https://api.buywhere.ai/mcp
solutions:
- name: Price Comparison Agents
  description: Search and compare prices across Southeast Asian and US merchants in a single agent turn.
- name: Deal Alert Bots
  description: Poll /products/deals with country and discount filters; match against keyword watchlists.
- name: Shopping Assistants
  description: Conversational shopping helpers that route to local merchants in SG, US, VN, TH, MY.
- name: Market Research Tools
  description: Cross-merchant price and availability snapshots, plus 90-day price history.
- name: Cross-Border Commerce
  description: Normalized USD pricing and country-aware filtering for cross-border buying agents.
useCases:
- find_best_value: Search and side-by-side compare top candidates by normalized USD price.
- deal_alert: Poll active discounts in a target country and filter by keyword.
- product_research: Discover categories and pull structured specs to feed an LLM buying guide.
common:
- type: CapabilityMap
  url: capabilities/buywhere-capability-edges.yml
  name: BuyWhere Business Capability Map
- type: AgentCard
  url: a2a/buywhere-a2a.yml
  name: A2A Agent Card
  description: Agent Card served at /.well-known/agent-card.json (flavored against A2A 1.0.0).
- type: AgenticAccess
  url: agentic-access/buywhere-agentic-access.yml
- type: DomainSecurity
  url: security/buywhere-domain-security.yml
- type: Authentication
  url: authentication/buywhere-authentication.yml
- url: https://api.buywhere.ai/
  name: Website
  type: Website
- url: https://api.buywhere.ai/
  name: API Documentation
  type: Documentation
- url: https://api.buywhere.ai/docs/guides/mcp
  name: MCP Integration Guide
  type: MCPDocumentation
- url: https://api.buywhere.ai/mcp
  name: MCP Endpoint
  type: MCPEndpoint
- url: https://api.buywhere.ai/openapi.json
  name: OpenAPI Specification (Upstream)
  type: OpenAPI
- url: https://api.buywhere.ai/.well-known/ai-plugin.json
  name: AI Plugin Manifest
  type: PluginManifest
- url: https://api.buywhere.ai/llms.txt
  name: LLMs.txt
  type: LlmsText
- url: https://api.buywhere.ai/us/
  name: BuyWhere US Edition
  type: Website
- url: https://github.com/BuyWhere
  name: GitHub Organization
  type: GitHub
- url: https://github.com/BuyWhere/buywhere
  name: Primary GitHub Repository
  type: GitHub
- url: plans/buywhere-plans-pricing.yml
  name: Plans and Pricing
  type: Plans
- url: rate-limits/buywhere-rate-limits.yml
  name: Rate Limits
  type: RateLimits
- url: finops/buywhere-finops.yml
  name: FinOps
  type: FinOps
- url: vocabulary/buywhere-vocabulary.yml
  name: Vocabulary
  type: Vocabulary
- url: json-ld/buywhere-context.jsonld
  name: JSON-LD Context
  type: JSONLD
url-source: https://api.buywhere.ai/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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