Skip to content
STRING logo

STRING

Builds protein-protein interaction networks from known and predicted associations and runs functional enrichment on submitted protein lists.

Actively maintained

AnalyticsSearchAnalytics
string-db.org ↗WikipediaWikidata
Open string-db.orgAlternativesSet it up for my teamIs STRING yours? Claim the card →
At a glanceswept Oct 26, 2026

≈ 22.7kvisits/mo

Established · estimate, read Oct 14, 2026

For
Biologists and bioinformaticians studying protein interactions and functional enrichment in gene or protein lists
Activity
Actively maintainedsite updated 8 days ago
Used for
  • look up a protein's interaction network by name
  • run enrichment analysis on a ranked protein list
  • build an interaction network from protein sequences
read off string-db.org on Oct 15, 2026
Worth knowingcomputed from what we read · each with its source
  • Used more than 91% of the 314 tools on its shelfINITE Atlas →
  • On the web since 2007, older than 96% of its shelfINITE Atlas
  • Has an MCP server (1 in the registry)public registry →
Pricingpricing page, read Oct 15, 2026

Price not read

pricing page

Your datawhat they publish, each line with its page · read Oct 15, 2026

These are STRING's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.

How a program reaches itfound, not claimed · read Oct 15, 2026
  • MCP serverorg.string-db/string-mcpverified in the MCP registry
  • Stateanswers, 17 toolschecked 2026-10-15
  • Address to connectmcp.string-db.org
  • API docsstring-db.org/cgi/accessthe vendor's page ↗

MCP server details →

This card as JSON, for your agent →

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.

Most used in Analyticsby use, among tools still maintained — this tool shares no tags yet

Figure and bar: visits/mo, estimate · year: online since

Compare STRING with

Pick up to two.

All 10 alternatives to STRING →

All Analytics tools →

Not it? Say what you need

beta

Three tools from the Atlas for the job you describe, each with what fits and what does not.

From people who use itnot part of the reading

No notes yet. What do you use STRING for?

Sign in to leave a note
Questions this page answers
  • What is STRING?

    Builds protein-protein interaction networks from known and predicted associations and runs functional enrichment on submitted protein lists. It is listed in the Atlas under Analytics.

  • Who is STRING for?

    Biologists and bioinformaticians studying protein interactions and functional enrichment in gene or protein lists

  • Is STRING free?

    No. Its pricing page showed no free plan on 2026-10-15.

  • Do people use STRING?

    Established: ≈ 22.7k visits/mo · estimate, 2026-10.

  • Is STRING still maintained?

    Actively maintained: site updated 8 days ago.

  • Is STRING safe?

    We do not audit vendors. What STRING publishes, read 2026-10-15: a trust center.

How we read a tool

No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.

  • Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
  • Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
  • Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
  • The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.

How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.

How we read every tool → · By INITE Atlas Desk