Getting started

The Buyary Evidence Layer.

Synthesized product intelligence for AI agents, over Buyary’s published catalog.

When an agent is asked “should I buy this?”, the open web gives it marketing pages, affiliate listicles, and review spam. Buyary gives it the synthesis: a composite Buyary Score with expert/user/value sub-scores, verified claims, and per-source consensus — every field traceable to independent sources, with raw reviews and store listings deliberately omitted.

The whole surface is two tools, callable over remote MCP or plain REST: get_product_intelligence for one product, and get_product_intelligence_batch for up to five at once. Issue a key once — it works on both protocols — point your client at the service, and your agent answers buying questions from the Evidence Layer instead of guessing. When nothing confidently matches, it says so rather than returning a wrong product.

Where to go next

Quickstart

Key → connected → first call in under five minutes, over MCP or REST.

Authentication & keys

The bearer model: one-time key reveal, revocation, and 401 semantics.

MCP

The agent-native transport: server URL, per-client config, tool discovery.

REST API

The same service over plain HTTP: two endpoints, same keys, byte-identical responses.

get_product_intelligence

The tool’s argument, both response shapes, and resolution semantics.

get_product_intelligence_batch

Up to 5 products in one call: results in input order, honest rate accounting.

Data model

Field-by-field tables for every response object, verbatim from the backend.

Errors & limits

Auth errors, the limited-coverage contract, and key lifecycle semantics.

Changelog

What shipped on the Buyary API and this portal, by date.