Every e-commerce platform in Southeast Asia wants to be the definitive product catalog. Lazada, Shopee, Tokopedia, and Qoo10 each hold fragments of the truth: their own listings, pricing, and inventory data. None of them have an incentive to make that data broadly useful to developers building on top of the ecosystem.
This is the infrastructure gap BuyWhere was built to fill.
Why neutrality matters
When a product catalog is owned by a marketplace, every API decision reflects that marketplace's commercial interests:
- Lazada's API shows Lazada listings. It will not surface the Shopee listing that is 15 percent cheaper.
- Shopee's API prioritizes sponsored placements. The organic cheapest result may not rank first.
- Google Shopping is geo-limited, ad-funded, and missing large parts of Southeast Asian merchant inventory.
For an AI agent that is supposed to act in the user's interest by finding the best price, flagging availability issues, and comparing specs, a biased catalog is a liability. The agent's recommendations are only as trustworthy as the data underneath them.
A neutral catalog has one job: reflect reality accurately, regardless of who is selling.
The Southeast Asia opportunity
Southeast Asia is structurally well suited for this layer:
- Fragmented merchant landscape. No single dominant platform. Users routinely check three or four apps before buying, so an agent that checks one platform gives a partial answer.
- High mobile-first, price-sensitive behavior. Consumers are experienced comparison shoppers and want the cheapest option in the fewest taps.
- Rapid AI adoption among developers. Singapore in particular has a dense developer community that is early on AI agent tooling.
- No existing neutral catalog API. There is no equivalent to what BuyWhere is building for the Southeast Asian market.
What a neutral API enables
When developers can access a unified, neutral product catalog, the applications compound:
- Price alert agents that watch an item across merchants and notify when it drops
- Gifting agents that find the best deal for a specific budget
- Procurement tools for SMBs sourcing office equipment or supplies across platforms
- Voice assistants that answer questions like "where is the cheapest iPhone 16 in Singapore right now?"
- Analytics products that track category price trends over time
None of these are possible with a single-marketplace API. All of them become much simpler with a clean, well-maintained neutral catalog.
The infrastructure play
BuyWhere is not trying to be a consumer product. We are infrastructure in the same way Stripe is not a bank and Twilio is not a telco. We sit between the fragmented Southeast Asian merchant ecosystem and the developers building the next generation of AI-powered commerce applications.
The bet is straightforward: as AI agents become a primary interface for e-commerce, the developers building those agents will need reliable, structured product data. BuyWhere is building that layer now, while the ecosystem is still forming.
For founders and investors tracking this space, the neutral catalog layer is the obvious missing piece. We are building it.
BuyWhere is the product catalog API for AI agents in Southeast Asia. Current public entry points are buywhere.ai/integrate, buywhere.ai/api-keys-keys, and docs.buywhere.ai.