UniChem Source Databases

unichem/sources

The catalogue of source databases UniChem cross-references (about 25, among them ChEMBL, DrugBank, PubChem, ChEBI, RCSB PDB, HMDB, BindingDB, DrugCentral and Rhea): for each its UniChem source id, short name, display name, description, home page, URL prefix for compound ids, number of compounds, and last update. Use the ids to read the sources in compound-lookup results. UniChem data, EMBL-EBI, served by Eden Engine; not an official UniChem product.

activeper callv1

Price

$0.0026 per call

You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $0.50.

Data source

UniChem (EMBL-EBI)

Data from UniChem, EMBL-EBI (https://www.ebi.ac.uk/unichem). Cite: Chambers J et al., UniChem: a unified chemical structure cross-referencing and identifier tracking system, J Cheminform 2013. Served by Eden Engine; not an official UniChem or EMBL-EBI product.

Use it

Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.

Connect once and your AI can find and run this tool, and any other it needs.

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agent

// 1. search: find the tool
omnial_search({ query: "what you need" })

// 2. inspect: price and input schema
omnial_inspect({ tool: "unichem/sources" })

// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "unichem/sources" })

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "unichem/sources", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "unichem/sources", input: { /* ... */ } })

// 5. settle: the call is charged when it finishes, nothing to do

Not connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.

Pricing

Every charge this tool can incur.

Charge	Price
Per call	$0.0026

Updated: Oct 25, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "properties": {},
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "sources"
  ],
  "properties": {
    "sources": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "name": {
            "type": "string",
            "description": "Short name."
          },
          "srcUrl": {
            "type": [
              "string",
              "null"
            ]
          },
          "created": {
            "type": "null"
          },
          "private": {
            "type": [
              "boolean",
              "null"
            ]
          },
          "UCICount": {
            "type": [
              "integer",
              "null"
            ],
            "description": "Number of UniChem compounds with an id from this source."
          },
          "nameLong": {
            "type": [
              "string",
              "null"
            ]
          },
          "sourceID": {
            "type": "integer",
            "description": "UniChem source id, as used in compound-lookup results."
          },
          "baseIdUrl": {
            "type": [
              "string",
              "null"
            ],
            "description": "URL prefix to which a compound id is appended."
          },
          "nameLabel": {
            "type": [
              "string",
              "null"
            ],
            "description": "Display name."
          },
          "srcDetails": {
            "type": "null"
          },
          "description": {
            "type": [
              "string",
              "null"
            ]
          },
          "lastChecked": {
            "type": [
              "string",
              "null"
            ]
          },
          "srcLastUpdated": {
            "type": [
              "string",
              "null"
            ]
          },
          "updateComments": {
            "type": "null"
          }
        },
        "additionalProperties": true
      }
    },
    "response": {
      "type": "string",
      "description": "Success when the list was produced."
    },
    "totalSources": {
      "type": [
        "string",
        "integer"
      ],
      "description": "Number of sources, as the service sends it (a string)."
    }
  },
  "description": "The source databases.",
  "additionalProperties": true
}