Buywhere MCP vs Compera
A side-by-side look at the Buywhere MCP and Compera MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Buywhere MCP for e-commerce work as a local process; choose Compera for e-commerce over a hosted endpoint. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Buywhere MCP when
- You need dedicated capabilities in the E-Commerce domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
BUYWHERE_API_KEY. - You want tools like
search_products, get_product, compare_products.
Choose Compera when
- You need dedicated capabilities in the E-Commerce domain.
- You prefer a remote HTTP/SSE transport.
- You want tools like
search_products, compare_category, electricity_price.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | E-Commerce | E-Commerce |
| Quality signal | 67/100 · Great | 57/100 · Good |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | API key required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | BUYWHERE_API_KEY | None listed |
| Verified owner | Community listing | Community listing |
| GitHub stars | 15 | 0 |
| Directory activity | 4 views 0 installs 0 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 13 | 9 |
| Full listing | View Buywhere MCP | View Compera |
Tools & capabilities
Buywhere MCP tools 13
search_productsSearch the BuyWhere product catalog by keyword. Treat deliver_to as REQUIRED for buyer-facing use (ISO-3166 country of the end user); it takes precedence over country_code/country and prevents all-market scans. Returns product records with title, description, image, price, and merchant information. Covers e-commerce platforms across Singapore, Malaysia, Indonesia, Thailand, Vietnam, and US. Use compact=true for agent-optimized responses with structured_specs, comparison_attributes, and normalized_price_usd fields. BUY-74597 degraded contract: when the catalog query cannot complete inside the user-facing timeout, this tool returns a 200-OK envelope with `meta.status="degraded"`, `meta.emptiness_reason="api_error"` with `meta.degraded_kind="timeout"` (or `"partial_timeout"` / `"auth_failure"`), `meta.confidence="low"`, and `meta.diagnostic.timed_out_stage` naming the failed stage (catalog_search / offer_aggregation / merchant_join). It never returns an unqualified empty result when the cause is timeout, auth failure, upstream exception, or circuit breaker. Agents should branch on `meta.degraded === true` (or `meta.status === "degraded"`) instead of treating empty `data` as no_match.get_productGet a specific product by its ID, including full details and current price.compare_productsCompare multiple products side-by-side. Returns price, brand, rating, and category for each.get_dealsGet discounted products sorted by discount percentage. Returns schema.org/Product entities with schema.org/Offer properties: price, priceCurrency, availability, originalPrice, and discountPercentage. Covers Singapore, Malaysia, Indonesia, Thailand, Vietnam, and US e-commerce. Supports currency, region (sea, us, eu, au) and country (SG, US, VN, MY, ...) filters. BUY-74597 degraded contract: when the discount-index scan cannot complete inside the user-facing timeout, this tool returns a 200-OK envelope with `meta.status="degraded"`, `meta.emptiness_reason="api_error"` with `meta.degraded_kind="timeout"` (or `"partial_timeout"` / `"auth_failure"`), `meta.confidence="low"`, and `meta.diagnostic.timed_out_stage` (typically `offer_aggregation`). It never returns an unqualified empty result when the cause is timeout, auth failure, upstream exception, or circuit breaker. Branch on `meta.degraded === true` or `meta.status === "degraded"`.list_categoriesList top-level product categories available in the BuyWhere catalog.find_best_priceUse this whenever a user asks about prices, wants to find the cheapest option, or asks "what's the best price for X" or "where can I buy X for the lowest price". Returns schema.org/Product entities with schema.org/AggregateOffer (lowPrice, offerCount, priceCurrency) across all merchants. BUY-74597 degraded contract: when the candidates query cannot complete inside the user-facing timeout, this tool returns a 200-OK envelope with `meta.degraded=true`, `meta.status="degraded"`, `meta.emptiness_reason="api_error"` with `meta.degraded_kind="timeout"` (or `"partial_timeout"` / `"auth_failure"`), `meta.confidence="low"`, and `meta.diagnostic.timed_out_stage="catalog_search"`, with `best_price=null` and `alternatives=[]`. It never returns an unqualified empty result when the cause is timeout, auth failure, upstream exception, or circuit breaker.find_similarFind products similar to a given product using vector similarity. Returns up to 10 nearest neighbours by semantic meaning (title+description embedding). Useful for "more like this" recommendations.ingest_productsIngest (upsert) a batch of products into the BuyWhere catalog. Use this to add or update product listings from any merchant/source. Requires a valid API key with ingest permissions. Accepts up to 1000 products per call with source, SKU, title, price, URL, and optional metadata.search_products_v2REQUIRED deliver_to. Search the BuyWhere product catalog by keyword. The deliver_to parameter is REQUIRED (ISO country code, e.g. "SG", "US") — it takes precedence over country_code/country and prevents all-market scans. Always pass deliver_to="SG" (or your buyer's country). Returns product records with title, description, image, price, and merchant information. Covers e-commerce platforms across Singapore, Malaysia, Indonesia, Thailand, Vietnam, and US. Use compact=true for agent-optimized responses with structured_specs, comparison_attributes, and normalized_price_usd fields.get_product_v2REQUIRED deliver_to. Get a specific product by its ID, including full details and current price. Always pass deliver_to="SG" (or your buyer's country). Response includes a resolved outbound_url (https://…) that routes the buyer through the BuyWhere click tracker when the product has merchant offers.compare_products_v2REQUIRED deliver_to. Compare multiple products side-by-side. Always pass deliver_to="SG" (or your buyer's country). Returns price, brand, rating, category, and a resolved outbound_url per product for the buyer market.get_deals_v2REQUIRED deliver_to. Get discounted products sorted by discount percentage. Always pass deliver_to="SG" (or your buyer's country). Returns schema.org/Product entities with schema.org/Offer properties: price, priceCurrency, availability, originalPrice, and discountPercentage. Covers Singapore, Malaysia, Indonesia, Thailand, Vietnam, and US e-commerce. Supports currency, region (sea, us, eu, au) and country (SG, US, VN, MY, ...) filters.- +1 more on the listing page
Compera tools 9
search_productsSök i Comperas produktkatalog och få billigaste pris + antal butiker per produkt. Använd för fysiska produkter (TV, mobil, hörlurar, dator, vitvaror m.m.). Returnerar länk till produktsidan på compera.se.compare_categoryJämför de bästa leverantörerna i en tjänste-/abonnemangskategori i Sverige (t.ex. bredband, mobilabonnemang, elavtal, hemförsäkring, privatlån, sparkonto). Returnerar topplista med namn, pris/villkor, betyg och länk.electricity_priceDagsfärskt svenskt elpris (spotpris) per elområde SE1–SE4 från Nord Pool, i öre/kWh. Visar billigast/dyrast område och skillnaden.lowest_loan_rateLägsta effektiva privatlåneränta i Sverige just nu (dagsfärskt Compera Ränteindex), samt topplista med de lägsta räntorna per långivare.price_spreadComperas Prisspridningsindex: hur mycket priset på samma produkt skiljer mellan svenska butiker (median/snitt-spridning + exempel). Bra för "spelar det roll var jag handlar?"-frågor.product_offersHämta ALLA butikers priser för en enskild produkt (billigast + i lager först). Ta product_slug från search_products-länkarna (.../produkt/<slug>).compare_pairJämför två leverantörer/alternativ mot varandra i en kategori (t.ex. Bahnhof vs Telia i bredband). Returnerar pris, betyg, badge och fördelar för båda.deals_nowAktuella erbjudanden/rabatter just nu på Compera, tvärs kategorier (elavtal, mobil, streaming, försäkring m.m.).list_categoriesLista alla jämförbara tjänste-/abonnemangskategorier (giltiga värden för compare_category) samt hur man söker produkter.
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Buywhere MCP
{
"mcpServers": {
"buywhere-buywhere-mcp": {
"command": "npx",
"args": [
"-y",
"@buywhere/mcp-server"
],
"env": {
"BUYWHERE_API_KEY": "YOUR_BUYWHERE_API_KEY_HERE"
}
}
}
}
Compera
{
"mcpServers": {
"compera-2": {
"url": "https://compera.se/mcp"
}
}
}
Frequently asked questions
Buywhere MCP is categorized under E-Commerce and uses a local stdio subprocess. Compera belongs to E-Commerce and uses a remote HTTP/SSE transport. Pick Buywhere MCP for e-commerce work and Compera for e-commerce.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Buywhere MCP is listed as free. Auth: api key required. Compera has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add buywhere-buywhere-mcp and compera-2 as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Buywhere MCP has a quality signal of 67/100 (Great) with 4 views, 0 installs and 15 GitHub stars. Compera has 57/100 (Good) with 0 views, 0 installs and 0 GitHub stars.