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ChemSpider (BYOK)

Search the ChemSpider chemical database by name, formula or mass and read compound records, identifiers and external references with your own RSC API key

Unify Dynamics LLC

Tools9read-only
Sign-inBYOKbring your own key
Key keptNeverused for one call only
PriceFreeoptional Pro limits
ProviderChemSpiderunofficial, not affiliated
Works withMCP · RESTany agent

Try asking

Real questions, and the tools your agent calls to answer them.

Find the ChemSpider records for aspirin
Tools called
search_by_name
Which compounds have the formula C5H5N?
Tools called
search_by_formula
Which compounds have a monoisotopic mass of about 164.1062?
Tools called
search_by_mass
Is my ChemSpider search finished?
Tools called
get_search_status
Show the record ids found by my ChemSpider search
Tools called
get_search_results
What are the formula, SMILES and InChIKey of ChemSpider record 2157?
Tools called
get_compound

About

ChemSpider (BYOK) lets an AI assistant read your own ChemSpider data through the ChemSpider API with a key you supply (RSC Compounds API key). Read-only: 9 tools (search_by_name, search_by_formula, search_by_mass, get_search_status, get_search_results, get_compound, get_external_references, list_data_sources, convert_identifier). The BYOK key travels with each request, is used for that one call only and is never stored, logged or cached; it is only ever sent to api.rsc.org. Unofficial connector by Unify Dynamics LLC: not affiliated with, endorsed by or sponsored by ChemSpider. ChemSpider and its logos are trademarks of their owners and are used only to say which service the connector works with.

Sources: Live from the ChemSpider API (api.rsc.org) with a BYOK key; documentation: https://developer.rsc.org/compounds-v1/apis. Endpoints checked against that documentation on 2026-10-16.

Privacy

The publisher, Unify Dynamics LLC, states that tool inputs are processed in memory and not retained.

Data not collectedNo account, no profile, no stored prompts or results.

What it can do

9 tools, grouped by job. Every one is read-only or compute-only.

OpenAPI
Read your data9 tools
  • Search by nameStart a ChemSpider search by compound name (3 to 4000 characters).
  • Search by formulaStart a ChemSpider search by molecular formula.
  • Search by massStart a ChemSpider search by monoisotopic mass within a tolerance range.
  • Get search statusCheck whether a ChemSpider search started with a search tool is finished (status Queued, Processing, PartialResults, Complete, Failed or NotFound)…
  • Get search resultsGet the ChemSpider record ids found by a finished search (call get_search_status first); look the ids up with get_compound.
  • Get compoundGet a ChemSpider compound record by record id: common name, formula, SMILES, InChI, InChIKey, masses and reference counts for the requested fields.
  • Get external referencesList the external database records (source, external id and link) that a ChemSpider compound is cross-referenced to.
  • List data sourcesList the names of the chemical databases ChemSpider aggregates, usable to restrict searches.
  • Convert identifierConvert a chemical identifier between InChI, InChIKey, Mol and SMILES formats.

Information

PublisherUnify Dynamics LLC
CategoryScience
LanguagesEnglish
Built forWorldwide
CompatibilityAny MCP client · any agent · REST
Version0.1.0
MCP endpointhttps://byok-chemspider.connectorbay.com/mcp
REST APIopenapi.json
SupportGet help · Status
CountryWorldwide
FunctionOther
LayerDeep connectors

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Get ChemSpider (BYOK)

Free · BYOK · Read-only

BYOK: bring your own keyThis connector uses your own ChemSpider RSC Compounds API key. Create one at https://developer.rsc.org/, with the fewest permissions it needs (read-only if the provider offers it). Your assistant sends it in the X-Upstream-Key header with every request. It is used for that one call only: never stored, logged or cached, and only ever sent to ChemSpider. Revoke it at the provider whenever you like. Unofficial connector: not affiliated with ChemSpider.