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 APIs 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 16 more developer resources.

🌐 Visit website 📡 Source on GitHub

45.5/100 developing ▬ flat Agent 26/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

E-Commerce Shopping Price ComparisonSEASoutheast Asia AI Agents Product Catalog

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 45.5/100 · developing

Contract Quality 16.4 / 23

Developer Ergonomics 3.9 / 18

Access Clarity 7.1 / 18

Operational Transparency 4.3 / 12

Contract Governance 3.1 / 11

Discoverability 6.8 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 26/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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

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.

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 →

APIs 3

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

BuyWhere Authentication API

Agent registration and API key issuance.

BuyWhere Categories API

Product taxonomy and category browsing.

BuyWhere Products API

Product search, lookup, comparison, deals, and price history.

Open Collections 5

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

API Collection

OPEN COLLECTION

BuyWhere Product Catalog Authentication API

OPEN COLLECTION

BuyWhere Product Catalog Authentication Categories API

OPEN COLLECTION

BuyWhere Product Catalog Authentication Products API

OPEN COLLECTION

BuyWhere Product Catalog API

OPEN COLLECTION

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 API 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

14 properties

JSON SCHEMA

BuyWhere Price History

5 properties

JSON SCHEMA

BuyWhere Product

20 properties

JSON SCHEMA

JSON Structure 2

JSON Structure definitions describing this provider's data shapes.

Buywhere Offer Structure

0 properties

JSON STRUCTURE

Buywhere Product Structure

0 properties

JSON STRUCTURE

Examples 9

Example request and response payloads for these APIs.

Buywhere Compareproducts Example

2 fields

EXAMPLE

Buywhere Getcategoryproducts Example

2 fields

EXAMPLE

Buywhere Getdeals Example

2 fields

EXAMPLE

Buywhere Getproduct Example

2 fields

EXAMPLE

Buywhere Getproductprices Example

2 fields

EXAMPLE

Buywhere Listcategories Example

2 fields

EXAMPLE

Buywhere Mcp Tools Call Example

3 fields

EXAMPLE

Buywhere Registeragent Example

2 fields

EXAMPLE

Buywhere Searchproducts Example

2 fields

EXAMPLE

Scroll for all 9

Security Posture 2

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

Buywhere Authentication

http · 1 scheme

SECURITY

Buywhere Domain Security

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 1

Properties that don't map to a standard resource type

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: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  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
tags_raw:
- E-commerce
- Shopping
- Price Comparison
- SEA
- Southeast Asia
- AI Agents
- Product Catalog
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: 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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