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Astronomical Object Aliases and Cross-Identifications (SIMBAD)

simbad/identifiers

Every identifier SIMBAD lists for one astronomical object, given any one of them (for example Vega returns HD 172167, HR 7001, HIP 91262, GJ 721 and the rest): the cross-identification across catalogues, up to 200 identifiers as SIMBAD writes them. An identifier SIMBAD does not know returns count 0. Source: SIMBAD astronomical database, CDS, Strasbourg, ODbL; cite Wenger et al. 2000, A&AS 143, 9. Modified by Eden Engine (fields renamed and reduced). Served by Eden Engine; not an official CDS service.

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

SIMBAD astronomical database (CDS)

Source: SIMBAD astronomical database, CDS, Strasbourg, France (https://simbad.cds.unistra.fr), licensed under the Open Database Licence (ODbL, https://opendatacommons.org/licenses/odbl/). Please cite: Wenger et al. 2000, A&AS 143, 9 (bibcode 2000A&AS..143....9W). Modified by Eden Engine (fields renamed and reduced). Served by Eden Engine; not an official CDS service.

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.

Install itCreate an account
agent
// 1. search: find the tool
omnial_search({ query: "what you need" })

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

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

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

ChargePrice
Per call
$0.0026
Updated
Oct 27, 2026

Input and output schemas

Input schema
input_schema.json
{
  "type": "object",
  "required": [
    "identifier"
  ],
  "properties": {
    "identifier": {
      "type": "string",
      "pattern": "^[A-Za-z0-9 .+_\\-\\[\\]()*/:,#@&]{1,100}$",
      "description": "Any one identifier of the object, for example M31 or HD 172167. No quotes, semicolons or percent signs."
    }
  },
  "additionalProperties": false
}
Output schema
output_schema.json
{
  "type": "object",
  "required": [
    "count",
    "identifiers"
  ],
  "properties": {
    "count": {
      "type": "integer",
      "description": "Identifiers returned (at most 200)."
    },
    "identifiers": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "The object's identifiers, as SIMBAD writes them (internal spacing kept)."
    }
  },
  "additionalProperties": false
}