# RCSB PDB Structure Alignment API

**Canonical:** https://apis.io/apis/pdb/rcsb-pdb-alignment-api/  
**Provider:** RCSB PDB — https://apis.io/providers/pdb/  
**Base URL:** https://alignment.rcsb.org  
**Documentation:** https://alignment.rcsb.org

RCSB PDB Structure Alignment API is one of 7 APIs that [RCSB PDB](https://apis.io/providers/pdb/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Structure Alignment, Structural Comparison, Asynchronous, and Computational. The published artifact set on APIs.io includes API documentation.

Asynchronous REST API that performs programmatic structure alignment calculations between PDB entries or user-supplied coordinate files. Callers submit an alignment job via POST /submit (accepting PDBx/mmCIF, BinaryCIF, or legacy PDB format, with optional gzip compression), receive a UUID ticket, and poll GET /results for status and output. Enables large-scale structural comparison workflows without manual interaction with the RCSB PDB website.

## Machine-readable artifacts (2)

- **Documentation** — https://alignment.rcsb.org/api-reference.html
- **QueryEditor** — https://alignment.rcsb.org/query-editor.html

## Other RCSB PDB APIs (6)

- [RCSB PDB Data API](https://apis.io/apis/pdb/rcsb-pdb-data-api/)
- [RCSB PDB Sequence Coordinates API](https://apis.io/apis/pdb/rcsb-pdb-sequence-coordinates-api/)
- [RCSB PDB General API](https://apis.io/apis/pdb/pdb-general-api/)
- [RCSB PDB Metadata Service API](https://apis.io/apis/pdb/pdb-metadata-service-api/)
- [RCSB PDB Search Service API](https://apis.io/apis/pdb/pdb-search-service-api/)
- [RCSB PDB Suggest Service API](https://apis.io/apis/pdb/pdb-suggest-service-api/)

## Tags

Structure Alignment, Structural Comparison, Asynchronous, Computational

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