# TwinStrand Biosciences

> Seattle genomics company (founded 2015) commercializing Duplex Sequencing — an error-corrected
> NGS chemistry that reads both strands of a DNA molecule independently and compares them, cutting
> error rates from ~1-in-100 to below 1-in-10,000,000 per nucleotide so ultra-rare mutations become
> detectable. Sold as DuplexSeq assay kits paired with a cloud analysis pipeline hosted on DNAnexus.

GENERATED BY API EVANGELIST — NOT PUBLISHED BY TWINSTRAND BIOSCIENCES.
https://twinstrandbio.com/llms.txt returns 404 (probed 2026-08-05). This file was generated from
apis.yml and the derived OpenAPI in this repository. It is not served from twinstrandbio.com and
must not be presented as a TwinStrand artifact.

## What TwinStrand publishes for developers

Nothing. There is no developer portal, no API reference, no quickstart, no API pricing, no API
sign-up, no SDK, no CLI, no webhooks, no changelog and no status page. The api., docs.,
developer., support., portal. and status. subdomains of twinstrandbio.com do not resolve. No
/.well-known/ document of any kind is served. The DuplexSeq analysis pipeline is customer-only
software running on the DNAnexus platform and is not reachable without a DNAnexus project.

## The one machine-readable surface

- [WordPress REST route index](https://twinstrandbio.com/wp-json/): 349 routes across 18
  namespaces. The wp/v2 content collections are anonymously readable. This is the source the
  OpenAPI in this repository was derived from.
- [Derived OpenAPI 3.1](openapi/twinstrand-biosciences-content-openapi.yml): 34 read operations
  over publications, patents, posters, news, events, team members, pages, media, taxonomies and
  site search.

### Read collections (GET, no credentials, base https://twinstrandbio.com/wp-json/wp/v2)

- `/publication` — 38 peer-reviewed publications on Duplex Sequencing
- `/publication-category` — 11 topical terms · `/publication-year` — 14 chronological terms
- `/patent` — 28 patent records in the Duplex Sequencing estate
- `/poster` — 14 conference posters
- `/news` — 27 company news releases · `/event` — 30 conferences, webinars and meetings
- `/team-member` — 10 leadership and team profiles
- `/pages` — 24 marketing, product and legal pages · `/media` — 370 attachments
- `/search` — site-wide search across post types

Pagination is `?page=` + `?per_page=` (max 100), with `X-WP-Total`, `X-WP-TotalPages` and an
RFC 8288 `Link` header. `_fields=` selects sparse fields; `_embed` inlines linked resources.
Errors use the WordPress `{code, message, data.status}` envelope, not RFC 9457 — and an unknown
id or route is intercepted at the edge and answered as an HTML 404 page, not JSON.

## Company

- [Home](https://twinstrandbio.com/)
- [Technology — Duplex Sequencing](https://twinstrandbio.com/technology/)
- [AML MRD Assay](https://twinstrandbio.com/aml-assay/)
- [Mutagenesis Assay](https://twinstrandbio.com/mutagenesis-assay/) (business transferred to Scantox)
- [Mutagenesis Testing](https://twinstrandbio.com/mutagenesis-testing/)
- [Nitrosamine Testing](https://twinstrandbio.com/nitrosamine-testing/)
- [Publications](https://twinstrandbio.com/publications/)
- [Posters](https://twinstrandbio.com/resources/posters/)
- [Patents](https://twinstrandbio.com/legal/patents/)
- [About](https://twinstrandbio.com/company/) · [Team](https://twinstrandbio.com/company/our-team/)
- [News](https://twinstrandbio.com/company/news/) · [Investors](https://twinstrandbio.com/company/investors/)
- [Legal](https://twinstrandbio.com/legal/) ·
  [Terms](https://twinstrandbio.com/legal/product-and-services-terms-and-conditions/) ·
  [Privacy](https://twinstrandbio.com/legal/privacy-policy/)
- [GitHub](https://github.com/twinstrandbio) — one public repository, DuplexSeq reference interval sets

## Optional

- Products are labeled "For Research Use Only. Not For Use in Diagnostic Procedures."
- Exact Sciences holds an exclusive license to the Duplex Sequencing technology (announced 2024-07-31).
- The DuplexSeq Mutagenesis Assay is now owned and operated by Scantox.