# RSC

**Canonical:** https://apis.io/providers/rsc/  
**Website:** https://developer.rsc.org/  
**APIs profiled:** 4

The Royal Society of Chemistry (RSC) provides developer APIs through its ChemSpider platform, enabling programmatic access to one of the world's largest chemistry databases with over 88 million unique chemical compounds. The APIs support compound search, structure retrieval, format conversion, and data enrichment for cheminformatics applications.

## Kin Score — 35.1 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 35.1).

| Facet | Score |
|---|---|
| Discoverability | 64.8 |
| Contract Quality | 66.4 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 9.5 |
| Commercial Clarity | 39.5 |
| Access Clarity | 39.5 |

## Agent readiness — 29.1 (agent-aware)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (4)

- **RSC Filter API** — Search and filter chemical compounds by various properties.
- **RSC Lookups API** — Look up reference data such as available data sources.
- **RSC Records API** — Retrieve compound record details, images, and molecular files.
- **RSC Tools API** — Chemical format conversion and validation utilities.

## Agentic access (1)

- **Rsc Agentic Access** — 16 operations · 9 acting

## Security (2)

- **Rsc Authentication** — apiKey · 1 scheme
- **Rsc Domain Security** — TLSv1.3 · HSTS · DMARC

## Plans (1)

- **Rsc Plans Pricing**

## Tags

Chemistry, Cheminformatics, Chemical Data, Science

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