# Chemaxon

**Canonical:** https://apis.io/providers/chemaxon/  
**Website:** https://chemaxon.com  
**APIs profiled:** 9

Chemaxon is a cheminformatics software company, now part of Certara (chemaxon.com redirects to certara.com/chemaxon), offering 'a complete cheminformatics workbench for molecule design, property calculation, search, data management, and more.' Its products include Marvin chemical drawing, JChem Base and JChem Microservices, Design Hub, Compound Registration, calculators and standardizer toolkits, with developer documentation at docs.chemaxon.com and Java, .NET and Python API references at apidocs.chemaxon.com.

## Kin Score — 50.1 / 100 (developing)

Scored 2026-11-13 under rubric 0.28.0.

| Facet | Score |
|---|---|
| Discoverability | 75.0 |
| Contract Quality | 54.4 |
| Contract Governance | 35.6 |
| Operational Transparency | 26.2 |
| Developer Ergonomics | 61.3 |
| Access Clarity | 29.8 |

Regulatory layer — **Health**: 18.8 (matched via tags).

## Agent readiness — 43.7 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | served |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | served |
| Protected Resource Metadata | verified |
| Dynamic Client Registration | yes |
| Agentic Commerce | no |
| Pagination Ratio | no |
| Operation Distinctiveness | mostly |
| MCP Tool Quality | na |

## Access

Enterprise — onboarding: unknown, pricing: enterprise, trial: no (confidence: medium).

## APIs (40)

- **Chemaxon Amendment API** — Amendment related operations
- **Chemaxon Audit API** — Audit related operations
- **Chemaxon Auto Mapper API** — This controller lets you assign mapping values to atoms
- **Chemaxon Builtin Checker API** — The Builtin Checker API from Chemaxon — 65 operation(s) for builtin checker.
- **Chemaxon Bulk amendment API** — Bulk amendment related operations
- **Chemaxon Bulk registration API** — Bulk registration related operations
- **Chemaxon Bulk upload API** — Bulk upload related operations
- **Chemaxon Calculator API** — The Calculator API from Chemaxon — 25 operation(s) for calculator.
- **Chemaxon Checker API** — The Checker API from Chemaxon — 1 operation(s) for checker.
- **Chemaxon Checker Descriptor API** — The Checker Descriptor API from Chemaxon — 4 operation(s) for checker descriptor.
- **Chemaxon Checker Fixer API** — The Checker Fixer API from Chemaxon — 3 operation(s) for checker fixer.
- **Chemaxon Chemaxon built-in reactions API** — The Chemaxon built-in reactions API from Chemaxon — 2 operation(s) for chemaxon built-in reactions.
- **Chemaxon Chemical-term evaluation API** — The Chemical-term evaluation API from Chemaxon — 1 operation(s) for chemical-term evaluation.
- **Chemaxon CIP Stereo Calculator API** — The CIP Stereo Calculator API from Chemaxon — 1 operation(s) for cip stereo calculator.
- **Chemaxon Color substructure hits API** — Endpoint to color substructure hits in molecules
- **Chemaxon Compound retriever API** — Compound retriever related operations
- **Chemaxon Database version management API** — Endpoints to monitor and manage the different database versions and the automatic update process (the so-called "reindexing") from one version to another
- **Chemaxon Db Work queue handler controller API** — Use this controller to handle async and background tasks
- **Chemaxon Dictionary API** — Dictionary related operations.
- **Chemaxon Downstream API** — Downstream related operations
- **Chemaxon Extractor API** — Endpoint to extract textbox content from molecules
- **Chemaxon Forms API** — Information about Forms and Fields
- **Chemaxon Fragmenter API** — These endpoints can cut molecules into fragments
- **Chemaxon JSON Converter API** — The JSON Converter API from Chemaxon — 2 operation(s) for json converter.
- **Chemaxon Markush API** — The Markush API from Chemaxon — 1 operation(s) for markush.
- **Chemaxon Molecule Cleaner API** — The Molecule Cleaner API from Chemaxon — 1 operation(s) for molecule cleaner.
- **Chemaxon Molecule format converter API** — The Molecule format converter API from Chemaxon — 13 operation(s) for molecule format converter.
- **Chemaxon Molecule Standardizer API** — The Molecule Standardizer API from Chemaxon — 4 operation(s) for molecule standardizer.
- **Chemaxon Molecule type information API** — Use this service to get information about the molecule types. These types specify what to do with a structure during search. You can fine tune the search logic with different ar...
- **Chemaxon Multistep reaction controller API** — The Multistep reaction controller API from Chemaxon — 2 operation(s) for multistep reaction controller.
- **Chemaxon R-group decomposition API** — Use this controller to create r-group decompositions of targets for given query.
- **Chemaxon Reaction Converter API** — The Reaction Converter API from Chemaxon — 1 operation(s) for reaction converter.
- **Chemaxon Reactor API** — The Reactor API from Chemaxon — 2 operation(s) for reactor.
- **Chemaxon Reactor Work queue handler controller API** — Use this controller to handle async and background tasks
- **Chemaxon Registration API** — Registration related operations
- **Chemaxon Search API** — Structure search and export related operations.
- **Chemaxon Standardized molecule search API** — Endpoints to search for query structure in specified list of target structures while using standardization on structures
- **Chemaxon Store and search molecules and non chemical data API** — Use this controller to manage molecule collections that also has non chemical data assigned to structures. Create (or delete) a collection (a.k.a. ''table''). Insert / delete / ...
- **Chemaxon Structure details API** — Structure details and matching related operations.
- **Chemaxon Submission API** — Structure search and export related queries.

## Agentic access (1)

- **Chemaxon Agentic Access** — 258 operations · 153 acting · 1 human-in-the-loop

## Security (2)

- **Chemaxon Authentication** — 4 schemes
- **Chemaxon Domain Security** — TLSv1.3 · DMARC

## Plans (1)

- **Chemaxon Plans Pricing**

## Tags

Company, Cheminformatics, Chemistry, Drug Discovery, Life Sciences, Molecular Modeling, Software Development Kits

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/chemaxon/). Scores are computed from the provider's own public artifacts under a published rubric.