# Strand Platform

> Strand AI builds the missing data layer for biology foundation models — multimodal patient profiles via principled biological imputation. The Strand Platform is the hosted product: upload whole-slide images (WSIs), submit POSTMAN inference jobs to predict multiplex protein expression from H&E, and stream the OME-Zarr results.

## API

- [OpenAPI 3.1 spec (JSON)](/api/v1/openapi.json): machine-readable schema for every endpoint.
- [API reference (Markdown)](/docs/api.md): full endpoint-by-endpoint reference in Markdown — preferred for LLM agents.
- [Interactive docs (Scalar)](/docs/api): browser-rendered version of the same spec; not useful for agents but linked for completeness.

## SDKs

- [Python SDK on PyPI](https://pypi.org/project/strand-sdk/) — `pip install strand-sdk`.
- [R SDK on r-universe](https://strand-ai.r-universe.dev) — `install.packages("strandai", repos = "https://strand-ai.r-universe.dev")`.

## Docs

- [Hosted docs (Mintlify)](https://docs.strandai.com): human-readable docs site with quickstart, SDK reference, marker panel, pricing.

## Auth

All API endpoints require an `Authorization: Bearer sk-strand-...` header. Keys are created in the dashboard at `/settings/api-keys` and are scoped to one organization. Per-org rate and concurrency limits apply.