# HEY Research Lab Research API

**Canonical:** https://apis.io/apis/heyresearch-xyz/heyresearch-xyz-research-api/  
**Provider:** HEY Research Lab — https://apis.io/providers/heyresearch-xyz/  
**Base URL:** https://heyresearch.xyz  
**Documentation:** https://heyresearch.xyz/docs/public-api

HEY Research Lab Research API is one of 9 APIs that [HEY Research Lab](https://apis.io/providers/heyresearch-xyz/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 1 JSON Schema definition. Tagged areas include Research. The published artifact set on APIs.io includes an OpenAPI specification and 1 JSON Schema.

One project in depth: snapshot, coverage, explain, timeline, history, diff.

## Operations (13)

| Method | Path | Summary |
|---|---|---|
| GET | `/api/projects/{slug}/snapshot` | One project's important state in one read |
| GET | `/api/projects/{slug}/coverage` | What HEY knows and does not, per dimension |
| GET | `/api/projects/{slug}/explain` | Why HEY publishes a fact |
| GET | `/api/projects/{slug}/timeline` | Every kind of evidence on one axis |
| GET | `/api/projects/{slug}/history` | The points HEY persisted |
| GET | `/api/projects/{slug}/diff` | Then and now, never a cause |
| GET | `/api/projects/{slug}/relationships` | What is connected to one project, and why HEY thinks so |
| GET | `/api/projects/{slug}/built-on` | Which published projects a project names in its code or runs pools on, and… |
| GET | `/api/projects/{slug}/usage` | Whether what the project shipped is being used |
| GET | `/api/projects/{slug}/around/{eventId}` | Market and usage before and after one build event |
| GET | `/api/projects/{slug}/intelligence` | One project's intelligence in one read |
| GET | `/api/projects/{slug}/ask` | Ask HEY a question about one project |
| GET | `/api/snapshots` | Up to 10 project snapshots in one keyed request |

## Machine-readable artifacts (2)

- **OpenAPI** — https://artifacts.apis.io/heyresearch-xyz/openapi/heyresearch-xyz-research-api-openapi.yml
- **JSONSchema** — https://artifacts.apis.io/heyresearch-xyz/json-schema/heyresearch-xyz-project-snapshot-schema.json

## Other HEY Research Lab APIs (8)

- [HEY Research Lab Agents API](https://apis.io/apis/heyresearch-xyz/heyresearch-xyz-agents-api/)
- [HEY Research Lab Contracts API](https://apis.io/apis/heyresearch-xyz/heyresearch-xyz-contracts-api/)
- [HEY Research Lab Evidence API](https://apis.io/apis/heyresearch-xyz/heyresearch-xyz-evidence-api/)
- [HEY Research Lab Hey API](https://apis.io/apis/heyresearch-xyz/heyresearch-xyz-hey-api/)
- [HEY Research Lab Market API](https://apis.io/apis/heyresearch-xyz/heyresearch-xyz-market-api/)
- [HEY Research Lab Partners API](https://apis.io/apis/heyresearch-xyz/heyresearch-xyz-partners-api/)
- [HEY Research Lab Projects API](https://apis.io/apis/heyresearch-xyz/heyresearch-xyz-projects-api/)
- [HEY Research Lab Status API](https://apis.io/apis/heyresearch-xyz/heyresearch-xyz-status-api/)

## Tags

Research

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