# Mattermark Complex Queries API

**Canonical:** https://apis.io/apis/mattermark/mattermark-complex-queries-api/  
**Provider:** Mattermark — https://apis.io/providers/mattermark/  
**Base URL:** https://api.mattermark.com/  
**Documentation:** https://developer.mattermark.com/reference

Mattermark Complex Queries API is one of 7 APIs that [Mattermark](https://apis.io/providers/mattermark/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Complex Queries. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and authentication docs.

The Complex Queries API from Mattermark — 1 operation(s) for complex queries.

## Operations (1)

| Method | Path | Summary |
|---|---|---|
| POST | `/queries` | Perform a complex investor query |

## Machine-readable artifacts (9)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/mattermark/refs/heads/main/openapi/mattermark-complex-queries-api-openapi.yml
- **Documentation** — https://developer.mattermark.com/docs
- **Documentation** — https://docs.mattermark.com/rest_api/index.html
- **APIReference** — https://developer.mattermark.com/reference
- **SourceCode** — https://github.com/Mattermark/mattermark-openapi
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/mattermark/refs/heads/main/authentication/mattermark-authentication.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/mattermark/refs/heads/main/conventions/mattermark-conventions.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/mattermark/refs/heads/main/errors/mattermark-problem-types.yml
- **DataModel** — https://raw.githubusercontent.com/api-evangelist/mattermark/refs/heads/main/data-model/mattermark-data-model.yml

## Other Mattermark APIs (6)

- [Mattermark GraphQL API](https://apis.io/apis/mattermark/mattermark-graphql-api/)
- [Mattermark Companies API](https://apis.io/apis/mattermark/mattermark-companies-api/)
- [Mattermark Funding Events API](https://apis.io/apis/mattermark/mattermark-funding-events-api/)
- [Mattermark Investors API](https://apis.io/apis/mattermark/mattermark-investors-api/)
- [Mattermark Search API](https://apis.io/apis/mattermark/mattermark-search-api/)
- [Mattermark Utilities API](https://apis.io/apis/mattermark/mattermark-utilities-api/)

## Tags

Complex Queries

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