Sigma-Aldrich

Sigma-Aldrich was a leading life science and high technology company whose biochemical and organic chemical products, kits, and services are used in scientific research, including genomics, proteomics, and drug discovery. Acquired by Merck KGaA in 2015, Sigma-Aldrich now operates as part of MilliporeSigma in North America and Merck in other regions, continuing to provide the world's largest catalog of research chemicals, biochemicals, laboratory equipment, and life science products to researchers globally.

Sigma-Aldrich publishes 4 APIs on the APIs.io network, including Pricing and Availability API, Products API, Safety Data Sheets API, and 1 more. Tagged areas include Life Science, Chemistry, Biochemistry, Laboratory, and Research.

The Sigma-Aldrich catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Sigma-Aldrich’s developer surface includes authentication and 8 more developer resources.

🌐 Visit website 📡 Source on GitHub

44.3/100 developing ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessEnterpriseSelf serve

6 APIs

Life ScienceChemistryBiochemistryLaboratoryResearchChemical Catalog

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 44.3/100 · developing

Contract Quality 18.4 / 25

Developer Ergonomics 3.9 / 20

Commercial Clarity 5.8 / 20

Operational Transparency 2.7 / 13

Governance 7.0 / 12

Discoverability 6.5 / 10

Agent readiness — 31/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

MCP Server 0 / 12

Machine-Readable Auth 10 / 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/sigma-aldrich: 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 6

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

Rate Limits 1

Documented rate limits and quota policies.

Sigma Aldrich Rate Limits

1 limits

RATE LIMITS

FinOps 1

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

JSON Schema 1

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

Examples 1

Example request and response payloads for these APIs.

Press 5

Recent news and press coverage referencing this provider.

Get Started 2

Portal, sign-up, and the first successful call

SDS Portal

SDS Portal

DeveloperPortal

DeveloperPortal

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Company 2

The organization behind the API

LinkedIn

Website

Website

Other 2

Properties that don't map to a standard resource type

ProductCatalog

ProductCatalog

Parent Company

Parent Company

Source (apis.yml)

aid: sigma-aldrich
url: https://raw.githubusercontent.com/api-evangelist/sigma-aldrich/refs/heads/main/apis.yml
apis:
- aid: sigma-aldrich:sigma-aldrich-structure-search-api
  name: Sigma-Aldrich Chemical Structure Search API
  tags:
  - Chemistry
  - Cheminformatics
  - Structure Search
  - SMILES
  humanURL: https://www.sigmaaldrich.com/US/en/support/contact-us
  properties:
  - url: https://www.sigmaaldrich.com/US/en/support/contact-us
    type: Documentation
  description: The Sigma-Aldrich Chemical Structure Search API enables substructure, exact structure, and similarity searches
    against the Sigma-Aldrich chemical catalog using SMILES, InChI, or molecular formula notation. Supports configuring similarity
    thresholds and returning ranked results for drug discovery, materials research, and synthetic chemistry workflows.
- aid: sigma-aldrich:sigma-aldrich-sds-api
  name: Sigma-Aldrich Safety Data Sheet API
  tags:
  - Safety
  - SDS
  - GHS
  - Compliance
  humanURL: https://www.sigmaaldrich.com/US/en/support/sds-portal
  properties:
  - url: https://www.sigmaaldrich.com/US/en/support/sds-portal
    type: Documentation
  description: The Safety Data Sheet (SDS) API provides programmatic access to GHS- compliant Safety Data Sheets for all Sigma-Aldrich
    chemical products. Enables EHS systems, LIMS platforms, and safety management software to retrieve current SDSs in multiple
    languages and formats for regulatory compliance and laboratory safety management.
- aid: sigma-aldrich:sigma-aldrich-pricing-and-availability-api
  name: Sigma-Aldrich Pricing and Availability API
  description: Real-time pricing and global stock availability for Sigma-Aldrich products.
  humanURL: https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/chemistry/labware/sigma-aldrich-developer-portal
  tags:
  - Pricing and Availability
  properties:
  - type: OpenAPI
    url: openapi/sigma-aldrich-pricing-and-availability-api-openapi.yml
  - type: Documentation
    url: https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/chemistry/labware/sigma-aldrich-developer-portal
  - type: SpectralRules
    url: rules/sigma-aldrich-rules.yml
  - type: Capabilities
    url: capabilities/chemical-research.yaml
  - type: JSONSchema
    url: json-schema/sigma-aldrich-product-schema.json
  - type: JSONLD
    url: json-ld/sigma-aldrich-context.jsonld
  - type: Vocabulary
    url: vocabulary/sigma-aldrich-vocabulary.yml
- aid: sigma-aldrich:sigma-aldrich-products-api
  name: Sigma-Aldrich Products API
  description: Product catalog search and retrieval for research chemicals, biochemicals, and laboratory supplies.
  humanURL: https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/chemistry/labware/sigma-aldrich-developer-portal
  tags:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/sigma-aldrich-products-api-openapi.yml
  - type: Documentation
    url: https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/chemistry/labware/sigma-aldrich-developer-portal
  - type: SpectralRules
    url: rules/sigma-aldrich-rules.yml
  - type: Capabilities
    url: capabilities/chemical-research.yaml
  - type: JSONSchema
    url: json-schema/sigma-aldrich-product-schema.json
  - type: JSONLD
    url: json-ld/sigma-aldrich-context.jsonld
  - type: Vocabulary
    url: vocabulary/sigma-aldrich-vocabulary.yml
- aid: sigma-aldrich:sigma-aldrich-safety-data-sheets-api
  name: Sigma-Aldrich Safety Data Sheets API
  description: Retrieval of GHS-compliant Safety Data Sheets for regulatory compliance and laboratory safety management.
  humanURL: https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/chemistry/labware/sigma-aldrich-developer-portal
  tags:
  - Safety Data Sheets
  properties:
  - type: OpenAPI
    url: openapi/sigma-aldrich-safety-data-sheets-api-openapi.yml
  - type: Documentation
    url: https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/chemistry/labware/sigma-aldrich-developer-portal
  - type: SpectralRules
    url: rules/sigma-aldrich-rules.yml
  - type: Capabilities
    url: capabilities/chemical-research.yaml
  - type: JSONSchema
    url: json-schema/sigma-aldrich-product-schema.json
  - type: JSONLD
    url: json-ld/sigma-aldrich-context.jsonld
  - type: Vocabulary
    url: vocabulary/sigma-aldrich-vocabulary.yml
- aid: sigma-aldrich:sigma-aldrich-structures-api
  name: Sigma-Aldrich Structures API
  description: Chemical structure search using SMILES, InChI, or molecular formula notation for cheminformatics workflows.
  humanURL: https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/chemistry/labware/sigma-aldrich-developer-portal
  tags:
  - Structures
  properties:
  - type: OpenAPI
    url: openapi/sigma-aldrich-structures-api-openapi.yml
  - type: Documentation
    url: https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/chemistry/labware/sigma-aldrich-developer-portal
  - type: SpectralRules
    url: rules/sigma-aldrich-rules.yml
  - type: Capabilities
    url: capabilities/chemical-research.yaml
  - type: JSONSchema
    url: json-schema/sigma-aldrich-product-schema.json
  - type: JSONLD
    url: json-ld/sigma-aldrich-context.jsonld
  - type: Vocabulary
    url: vocabulary/sigma-aldrich-vocabulary.yml
name: Sigma-Aldrich
tags:
- Life Science
- Chemistry
- Biochemistry
- Laboratory
- Research
- Chemical Catalog
kind: contract
accessModel:
  pricing: enterprise
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Enterprise · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/sigma-aldrich.png
access: 3rd-Party
created: '2025-01-01'
modified: '2026-05-19'
position: Consuming
segments:
- Life Science
- Chemistry
- Research Tools
description: Sigma-Aldrich was a leading life science and high technology company whose biochemical and organic chemical products,
  kits, and services are used in scientific research, including genomics, proteomics, and drug discovery. Acquired by Merck
  KGaA in 2015, Sigma-Aldrich now operates as part of MilliporeSigma in North America and Merck in other regions, continuing
  to provide the world's largest catalog of research chemicals, biochemicals, laboratory equipment, and life science products
  to researchers globally.
common:
- type: AgenticAccess
  url: agentic-access/sigma-aldrich-agentic-access.yml
- type: DomainSecurity
  url: security/sigma-aldrich-domain-security.yml
- type: Authentication
  url: authentication/sigma-aldrich-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/sigma-aldrich
- type: Website
  url: https://www.sigmaaldrich.com/
- type: ProductCatalog
  url: https://www.sigmaaldrich.com/US/en/catalog
- type: SDS Portal
  url: https://www.sigmaaldrich.com/US/en/support/sds-portal
- type: DeveloperPortal
  url: https://www.sigmaaldrich.com/US/en/technical-documents/technical-article/chemistry/labware/sigma-aldrich-developer-portal
- type: Parent Company
  url: https://www.merckgroup.com/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
specificationVersion: '0.19'

Sigma-Aldrich

APIs 6

Open Collections 1

Pricing Plans 1

Rate Limits 1

FinOps 1

Semantic Vocabularies 1

Spectral Rules 2

JSON Schema 1

JSON Structure 1

Examples 1

Security Posture 2

Agentic Access 1

Press 5

Sigma-Aldrich Stockholders Approve Acquisition By Merck ...

AIDDISON™: Using AI-Powered Software to Accelerate ...

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MilliporeSigma Launches First Ever AI Solution to Integrate ...

Sigma-Aldrich® and The Scripps Research Institute ...