UCSC Genomic Data website screenshot

UCSC Genomic Data

The UCSC Genome Browser is a widely-used bioinformatics tool providing access to genomic data, sequence information, and annotation tracks for hundreds of organisms. The REST API provides programmatic access to genome assemblies, DNA sequences, annotation tracks, and track hubs. No authentication is required; rate limiting of one request per second is recommended. Data is returned in JSON format.

UCSC Genomic Data publishes 5 APIs on the APIs.io network, including Genomes API, Hubs API, Search API, and 2 more. Tagged areas include Genomics, Bioinformatics, DNA, Biology, and Research.

The UCSC Genomic Data catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

UCSC Genomic Data’s developer surface includes engineering blog and 5 more developer resources.

🌐 Visit website 📡 Source on GitHub
44.9/100 developing ▬ flat Agent 22/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemiumOpen⚡ Free to try
5 APIs
GenomicsBioinformaticsDNABiologyResearchOpen Science

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 44.9/100 · developing
Contract Quality 17.3 / 25
Developer Ergonomics 0.4 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 4.8 / 13
Governance 7.0 / 12
Discoverability 7.4 / 10
Agent readiness — 22/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/ucsc-genomic-data: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 5

Individual APIs this provider publishes, each with its own machine-readable definition.

UCSC Genomic Data Genomes API

Genome assembly discovery and search

UCSC Genomic Data Hubs API

Track hub management

UCSC Genomic Data Search API

Genome browser search

UCSC Genomic Data Sequences API

DNA sequence retrieval

UCSC Genomic Data Tracks API

Annotation track listings and data retrieval

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

UCSC Genome Browser REST API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Ucsc Genomic Data Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Ucsc Genomic Data Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Ucsc Genomic Data Finops

FINOPS

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Ucsc Genomic Data Context

5 classes · 16 properties

JSON-LD

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

UCSC Genomic Data API Rules

5 rules · 3 warnings 2 info

SPECTRAL

UCSC Genomic Data API Rules

6 rules · 1 errors 5 warnings

SPECTRAL

JSON Schema 2

Standalone JSON Schema definitions for this provider's data models.

UCSC DNA Sequence Result

5 properties

JSON SCHEMA

UCSC Genome Browser Track

7 properties

JSON SCHEMA

JSON Structure 1

JSON Structure definitions describing this provider's data shapes.

Ucsc Genomic Data Structure

0 properties

JSON STRUCTURE

Examples 2

Example request and response payloads for these APIs.

Ucsc Get Dna Sequence Example

2 fields

EXAMPLE

Ucsc List Tracks Example

2 fields

EXAMPLE

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Ucsc Genomic Data Domain Security

TLSv1.3 · DMARC

SECURITY

Ucsc Genomic Data Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Ucsc Genomic Data Agentic Access

12 operations

12 operations · 0 acting

AGENTIC

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: ucsc-genomic-data
name: UCSC Genomic Data
description: The UCSC Genome Browser is a widely-used bioinformatics tool providing access to genomic data, sequence information,
  and annotation tracks for hundreds of organisms. The REST API provides programmatic access to genome assemblies, DNA sequences,
  annotation tracks, and track hubs. No authentication is required; rate limiting of one request per second is recommended.
  Data is returned in JSON format.
type: Index
accessModel:
  pricing: freemium
  onboarding: open
  trial: false
  try_now: true
  public: true
  label: Freemium · Open access
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/ucsc-genomic-data.png
tags:
- Genomics
- Bioinformatics
- DNA
- Biology
- Research
- Open Science
created: '2025-03-01'
modified: '2026-05-19'
url: https://raw.githubusercontent.com/api-evangelist/ucsc-genomic-data/refs/heads/main/apis.yml
specificationVersion: '0.19'
common:
- type: AgenticAccess
  url: agentic-access/ucsc-genomic-data-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/ucsc-genomic-data-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/ucsc-genomic-data-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/ucscgenomebrowser
- type: LinkedIn
  url: https://www.linkedin.com/company/ucsc-genomics-institute
- url: https://genome-blog.soe.ucsc.edu/blog/feed
  type: Blog
apis:
- aid: ucsc-genomic-data:ucsc-genomic-data-genomes-api
  name: UCSC Genomic Data Genomes API
  description: Genome assembly discovery and search
  humanURL: https://genome.ucsc.edu/goldenPath/help/api.html
  baseURL: https://api.genome.ucsc.edu
  tags:
  - Genomes
  properties:
  - type: OpenAPI
    url: openapi/ucsc-genomic-data-genomes-api-openapi.yml
  - type: Documentation
    url: https://genome.ucsc.edu/goldenPath/help/api.html
  - type: Examples
    url: examples/ucsc-get-dna-sequence-example.json
  - type: Examples
    url: examples/ucsc-list-tracks-example.json
  - type: JSONSchema
    url: json-schema/ucsc-genomic-data-sequence-schema.json
  - type: JSONSchema
    url: json-schema/ucsc-genomic-data-track-schema.json
- aid: ucsc-genomic-data:ucsc-genomic-data-hubs-api
  name: UCSC Genomic Data Hubs API
  description: Track hub management
  humanURL: https://genome.ucsc.edu/goldenPath/help/api.html
  baseURL: https://api.genome.ucsc.edu
  tags:
  - Hubs
  properties:
  - type: OpenAPI
    url: openapi/ucsc-genomic-data-hubs-api-openapi.yml
  - type: Documentation
    url: https://genome.ucsc.edu/goldenPath/help/api.html
  - type: Examples
    url: examples/ucsc-get-dna-sequence-example.json
  - type: Examples
    url: examples/ucsc-list-tracks-example.json
  - type: JSONSchema
    url: json-schema/ucsc-genomic-data-sequence-schema.json
  - type: JSONSchema
    url: json-schema/ucsc-genomic-data-track-schema.json
- aid: ucsc-genomic-data:ucsc-genomic-data-search-api
  name: UCSC Genomic Data Search API
  description: Genome browser search
  humanURL: https://genome.ucsc.edu/goldenPath/help/api.html
  baseURL: https://api.genome.ucsc.edu
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/ucsc-genomic-data-search-api-openapi.yml
  - type: Documentation
    url: https://genome.ucsc.edu/goldenPath/help/api.html
  - type: Examples
    url: examples/ucsc-get-dna-sequence-example.json
  - type: Examples
    url: examples/ucsc-list-tracks-example.json
  - type: JSONSchema
    url: json-schema/ucsc-genomic-data-sequence-schema.json
  - type: JSONSchema
    url: json-schema/ucsc-genomic-data-track-schema.json
- aid: ucsc-genomic-data:ucsc-genomic-data-sequences-api
  name: UCSC Genomic Data Sequences API
  description: DNA sequence retrieval
  humanURL: https://genome.ucsc.edu/goldenPath/help/api.html
  baseURL: https://api.genome.ucsc.edu
  tags:
  - Sequences
  properties:
  - type: OpenAPI
    url: openapi/ucsc-genomic-data-sequences-api-openapi.yml
  - type: Documentation
    url: https://genome.ucsc.edu/goldenPath/help/api.html
  - type: Examples
    url: examples/ucsc-get-dna-sequence-example.json
  - type: Examples
    url: examples/ucsc-list-tracks-example.json
  - type: JSONSchema
    url: json-schema/ucsc-genomic-data-sequence-schema.json
  - type: JSONSchema
    url: json-schema/ucsc-genomic-data-track-schema.json
- aid: ucsc-genomic-data:ucsc-genomic-data-tracks-api
  name: UCSC Genomic Data Tracks API
  description: Annotation track listings and data retrieval
  humanURL: https://genome.ucsc.edu/goldenPath/help/api.html
  baseURL: https://api.genome.ucsc.edu
  tags:
  - Tracks
  properties:
  - type: OpenAPI
    url: openapi/ucsc-genomic-data-tracks-api-openapi.yml
  - type: Documentation
    url: https://genome.ucsc.edu/goldenPath/help/api.html
  - type: Examples
    url: examples/ucsc-get-dna-sequence-example.json
  - type: Examples
    url: examples/ucsc-list-tracks-example.json
  - type: JSONSchema
    url: json-schema/ucsc-genomic-data-sequence-schema.json
  - type: JSONSchema
    url: json-schema/ucsc-genomic-data-track-schema.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
properties:
- url: rules/ucsc-genomic-data-rules.yml
  type: SpectralRules
- url: vocabulary/ucsc-genomic-data-vocabulary.yml
  type: Vocabulary
- url: json-ld/ucsc-genomic-data-context.jsonld
  type: JSONLDContext