levels-fyi MCP server

None of its 30 tools are described as changing anything. For 30 the reading was uncertain, so no mark is shown.

• get-permissions

  “Connectivity check for the Levels.fyi MCP server.”

  Publisher declares: read-only yes · destructive no · open-world no

  1 input

  • messagestring“Optional text to echo back in the response.”
• get-salary-percentiles

  “Get the median (p50) yearly total compensation in USD for a job family in one location, across all levels, from submissions in the last 12 months.”

  Publisher declares: read-only yes · destructive no · open-world no

  2 inputs, 2 required

  • jobFamilySlugstringrequired“A Levels.fyi job family slug, e.g.”
  • locationSlugstringrequired“One location slug (metro, state, country or region; not a city), e.g.”
• get-salaries-by-company-level

  “Get median (p50) yearly total compensation in USD for each of ONE company's internal levels (e.g.”

  Publisher declares: read-only yes · destructive no · open-world no

  3 inputs, 3 required

  • jobFamilySlugstringrequired“A Levels.fyi job family slug, e.g.”
  • locationSlugstringrequired“One location slug (metro, state, country or region; not a city), e.g.”
  • companySlugstringrequired“A company slug, e.g.”
• search-raw-data-points

  “Get the newest individual salary submissions for a job family, optionally narrowed to one location and/or one company.”

  Publisher declares: read-only yes · destructive no · open-world no

  3 inputs, 1 required

  • jobFamilySlugstringrequired“A Levels.fyi job family slug, e.g.”
  • locationSlugstring“One location slug (city, metro, state, country or region), e.g.”
  • companySlugstring“A company slug, e.g.”
• get-company

  “Look up a single company by its slug (preferred) or name, returning its full profile: name, slug, employee count, headquarters, founding year, ticker, company type, and estimated valuation.”

  Publisher declares: read-only yes · destructive no · open-world no

  1 input, 1 required

  • companyNameOrSlugstringrequired“Name or slug of a company”
• get-company-levels

  “Get a company's INTERNAL level names for a job family, ordered by seniority (e.g.”

  Publisher declares: read-only yes · destructive no · open-world no

  2 inputs, 2 required

  • companySlugstringrequired“The company (slug) whose internal level structure to list, e.g.”
  • jobFamilySlugstringrequired“A Levels.fyi job family slug, e.g.”
• get-company-group

  “Resolve a named company group (e.g.”

  Publisher declares: read-only yes · destructive no · open-world no

  1 input

  • groupstring“Company group name to resolve (e.g.”
• search-companies

  “Search companies using searchText input (required) and get their Levels.fyi slugs.”

  Publisher declares: read-only yes · destructive no · open-world no

  2 inputs, 1 required

  • searchTextstringrequired“Company name to search for, current or former (e.g.”
  • limitnumber“Max results to return (1–15).”
• search-companies-by-vesting

  “Find companies by their equity vesting characteristics: vesting/equity type (e.g.”

  Publisher declares: read-only yes · destructive no · open-world no

  6 inputs

  • vestingTypestring“Filter by vesting/equity type substring, e.g.”
  • vestingPatternstring“Filter by vesting shape: frontloaded, backloaded (e.g.”
  • minYearsnumber“Minimum total vesting years.”
  • maxYearsnumber“Maximum total vesting years.”
  • hasCliffboolean“Filter by whether the schedule has a 1-year cliff.”
  • limitnumber“Max companies to return (1–50).”
• search-top-companies

  “Get the top-paying companies for a job family within one country, ranked by median (p50) yearly total compensation in USD.”

  Publisher declares: read-only yes · destructive no · open-world no

  2 inputs, 2 required

  • jobFamilySlugstringrequired“A Levels.fyi job family slug, e.g.”
  • countrySlugstringrequired“A COUNTRY location slug, e.g.”
• get-locationon 1 other server

  “Look up one or more location slugs and get their details: name, type (country / metro-DMA / state), parent country, currency, and coordinates.”

  Publisher declares: read-only yes · destructive no · open-world no

  1 input, 1 required

  • locationSlugsarrayrequired“Location slug for the locations”
• get-location-stats

  “Get the top-paying locations for a job family within one country, ranked by median (p50) yearly total compensation in USD from submissions in the last 2 years.”

  Publisher declares: read-only yes · destructive no · open-world no

  2 inputs, 2 required

  • jobFamilySlugstringrequired“A Levels.fyi job family slug, e.g.”
  • countrySlugstringrequired“A COUNTRY location slug, e.g.”

Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. “Publisher declares” lists the hints the server itself sends with the tool (MCP annotations: read-only, destructive, idempotent, open-world); they are the publisher's claims, not checked by us. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. Read 2026-10-30.

The registry checks an entry when it is published (each new version), and nothing re-checks it on a schedule. A difference below is about the listing, not a judgement of the publisher.