# BuyAPI API

**Canonical:** https://apis.io/apis/buyapi-ai/buyapi-ai-api/  
**Provider:** BuyAPI — https://apis.io/providers/buyapi-ai/  
**Documentation:** https://buyapi.ai/docs

BuyAPI API is one of 2 APIs that [BuyAPI](https://apis.io/providers/buyapi-ai/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 6 JSON Schema definitions. The published artifact set on APIs.io includes an OpenAPI specification and 6 JSON Schemas.

BuyAPI API as documented publicly: 5 operations. Contract generated from the documentation by API Evangelist (2026-11-03); not the provider's own document.

## Operations (5)

| Method | Path | Summary |
|---|---|---|
| GET | `/api/evidence` | GET /api/evidence ?subjectType=vendor&subjectId=/database/neon&limit=8 → {evidence} reviewed evidence rows with source URLs, stance, confidence, and observed... |
| POST | `/api/recommend` | POST /api/recommend body: { projectDescription, constraints?, workload?, stackContext? } → { stack, decisionMatrix, costEstimate, assumptions, unknowns, alte... |
| GET | `/api/stacks/similar` | GET /api/stacks/similar ?vendorId=/database/convex&limit=6 → {stacks} public stack profiles with tools, roles, stage, audience, and confidence |
| GET | `/api/vendors` | GET /api/vendors/[...slug] e.g., /api/vendors/database/neon → Full VendorProfile object |
| GET | `/api/vendors/search` | GET /api/vendors/search ?query=...&category=... → { results, decisionMatrix? } |

## Machine-readable artifacts (7)

- **OpenAPI** — https://artifacts.apis.io/buyapi-ai/openapi/_ae-authored/buyapi-ai-openapi-generated.yml
- **JSONSchema** — https://artifacts.apis.io/buyapi-ai/json-schema/buyapi-ai-post-api-recommend-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/buyapi-ai/json-schema/buyapi-ai-post-api-recommend-request-schema.json
- **JSONSchema** — https://artifacts.apis.io/buyapi-ai/json-schema/buyapi-ai-get-api-vendors-search-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/buyapi-ai/json-schema/buyapi-ai-get-api-vendors-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/buyapi-ai/json-schema/buyapi-ai-get-api-evidence-response-schema.json
- **JSONSchema** — https://artifacts.apis.io/buyapi-ai/json-schema/buyapi-ai-get-api-stacks-similar-response-schema.json

## Other BuyAPI APIs (1)

- [BuyAPI MCP](https://apis.io/apis/buyapi-ai/buyapi-mcp/)

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/buyapi-ai/buyapi-ai-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/buyapi-ai/.