OMA Protein Entry: Species, Locus, Orthologous Group, Sequence (OMA Browser)

omabrowser/protein

Looks up one protein in the OMA Browser (Orthologous MAtrix) by UniProt entry name or accession, or by OMA id, and returns its OMA entry: the species (code, NCBI taxon id, name), chromosome and locus, OMA group number, hierarchical orthologous group (HOG) id and its taxonomic levels, sequence length and MD5, the amino-acid sequence and the coding DNA sequence. OMA release data, passed through unmodified and served by Eden Engine; not an official OMA 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

OMA Browser

Data from the OMA Browser (omabrowser.org), the Orthologous MAtrix orthology database. Credit to OMA is given as a courtesy. Served by Eden Engine; not an official OMA 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: "omabrowser/protein" })

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

// 4. run: price the exact call first, then run it
omnial_execute({ tool: "omabrowser/protein", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "omabrowser/protein", 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 21, 2026

Input and output schemas

Input schema

input_schema.json

{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "pattern": "^(?!\\.\\.?$)[A-Za-z0-9_.-]{2,40}$",
      "description": "Protein identifier: a UniProt entry name such as P53_HUMAN, a UniProt accession such as P04637, or an OMA id such as HUMAN31534. Case matters for entry names."
    }
  },
  "additionalProperties": false
}

Output schema

output_schema.json

{
  "type": "object",
  "required": [
    "omaid",
    "species"
  ],
  "properties": {
    "cdna": {
      "type": "string",
      "description": "Coding DNA sequence."
    },
    "locus": {
      "type": "object",
      "description": "start, end and strand on the chromosome.",
      "additionalProperties": true
    },
    "omaid": {
      "type": "string",
      "description": "OMA identifier, species code plus number."
    },
    "species": {
      "type": "object",
      "description": "The species: `code` (OMA five-letter code), `taxon_id` (NCBI), `species` (scientific name), `genome_url`.",
      "additionalProperties": true
    },
    "entry_nr": {
      "type": "integer"
    },
    "sequence": {
      "type": "string",
      "description": "Amino-acid sequence."
    },
    "entry_url": {
      "type": "string"
    },
    "oma_group": {
      "type": "integer",
      "description": "OMA group number; 0 when the protein is in no group."
    },
    "chromosome": {
      "type": [
        "string",
        "null"
      ]
    },
    "hog_levels": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Taxonomic levels of the protein's HOG, from the species up to the root."
    },
    "oma_hog_id": {
      "type": [
        "string",
        "null"
      ]
    },
    "roothog_id": {
      "type": [
        "integer",
        "null"
      ],
      "description": "Root hierarchical orthologous group number."
    },
    "canonicalid": {
      "type": "string",
      "description": "The protein's canonical external id, usually a UniProt accession or entry name."
    },
    "sequence_md5": {
      "type": "string"
    },
    "is_main_isoform": {
      "type": "boolean"
    },
    "sequence_length": {
      "type": "integer"
    }
  },
  "additionalProperties": true
}