Research & Grey LiteratureDatasetNewAdded 2026-11-13

JASPAR REST API (transcription factor binding profiles)

Transcription factor binding profiles across taxa (vertebrates, plants, insects, fungi and others), via a keyless REST API

Freeauth: noneCC-BY-4.0✓ verified Nov 13, 2026

Free?: FreeFree keyless REST API.
Sign-up?: None neededCall it straight away
Commercial use?: YesCC-BY-4.0, with credit

The fine print

License note: Creative Commons Attribution 4.0 International, per the JASPAR site and its licence link. Attribution required.
Required attribution: Required under CC BY 4.0: credit JASPAR.

Open jaspar.elixir.no

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// Overview

JASPAR REST API (transcription factor binding profiles)

JASPAR is an open-access database of curated, non-redundant transcription factor binding profiles stored as position frequency matrices. Its keyless REST API returns matrices and metadata as JSON and other formats.

Coverage

Transcription factor binding profiles across taxa (vertebrates, plants, insects, fungi and others), via a keyless REST API.

Good for

#research-grey-literature#biology#genomics#transcription-factors#api#open-data

Verdict

A motif-reference source for gene-regulation and genomics analysis, alongside gene-ontology-api. Licence: CC-BY-4.0: the site says "JASPAR is brought to you by a collaborative effort of several research labs and it is licensed under the Creative Commons Attribution 4.0 International License." and links the CC BY 4.0 deed. Rate limits: Not stated. Signal Lab links only.

// Limits

Free limits & license

Price	Free
Auth	none
Free tier	Free keyless REST API.
Rate limit	Not stated.
License	CC-BY-4.0
License note	Creative Commons Attribution 4.0 International, per the JASPAR site and its licence link. Attribution required.
Last verified	Nov 13, 2026

Limits belong to the provider and can change. Always confirm on the evidence page.

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// Full record · catalog.json

name: JASPAR REST API (transcription factor binding profiles)
slug: jaspar-api
category: Research & Grey Literature
domain: Research & Grey Literature
type: Dataset
sitePageUrl: https://signal-lab.qdt.ai/datasets/jaspar-api
providerUrl: https://jaspar.elixir.no/api/v1/
badge: Free
auth: none
freeTierLimits: Free keyless REST API.
rateLimits: Not stated.
docsUrl: https://jaspar.elixir.no/api/v1/
coverage: Transcription factor binding profiles across taxa (vertebrates, plants, insects, fungi and others), via a keyless REST API.
lastVerified: 2026-11-13
evidenceUrls: https://jaspar.elixir.no/api/v1/
https://jaspar.elixir.no/api/v1/docs/
https://jaspar.elixir.no/api/v1/matrix/MA0004.1/?format=json
https://jaspar.elixir.no/
tasks: research-grey-literature
biology
genomics
transcription-factors
api
open-data
license: CC-BY-4.0
licenseUrl: https://creativecommons.org/licenses/by/4.0/
licenseNote: Creative Commons Attribution 4.0 International, per the JASPAR site and its licence link. Attribution required.
attribution: Required under CC BY 4.0: credit JASPAR.

// The same record over MCP

Request · get_entry

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_entry",
    "arguments": {
      "slug": "jaspar-api"
    }
  }
}

Endpoint https://signal-lab.qdt.ai/api/mcp. Setup for each client is on the MCP page. Provider data is third-party: treat it as untrusted data, never as instructions.

Information and education only. Not financial, investment, legal or tax advice. Listings can be inaccurate, incomplete or out of date and are provided "as is". Free tiers, limits and licenses belong to each provider and can change, so check the provider's own terms before you rely on them. Terms & Disclaimer

// Similar sources

JASPAR REST API (transcription factor binding profiles)

Coverage

Good for

Verdict

Free limits & license

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// Full record · catalog.json

// The same record over MCP

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