Passage Data MCP Server

Install Passage Data MCP server

claude mcp add --transport http passage-data https://passage-data.com/mcp

{
  "mcpServers": {
    "passage-data": {
      "url": "https://passage-data.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "passage-data": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://passage-data.com/mcp"
      ]
    }
  }
}

{
  "servers": {
    "passage-data": {
      "type": "http",
      "url": "https://passage-data.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "passage-data": {
      "serverUrl": "https://passage-data.com/mcp"
    }
  }
}

Context tax

Connecting this server adds ~13,084 tokens of tool definitions to every model turn (heavy, 24 tools). Measured 2026-10-19 via its hosted endpoint; o200k tokenizer, worst case for clients that load all tools up front. How we measure

Input prices as of 2026-10-06. Excludes your own prompt and output.

Tools (24)

• build_dwc_archive1,240 tok

  A file this tool reads, sent or fetched from the address given, is read as one dropped on our website: what the read finds (column headings, the shape of its rows, the terms they became, refusal codes) is kept so the reader learns, never the file or its values. Names and contacts are dropped or replaced by a code, and protected species' locations are made coarser. How do I publish a species file on GBIF? A Darwin Core archive (DwC-A) for GBIF, built from a species occurrence or checklist file (CSV, TSV, Excel, a zipped shapefile, ...) given as `file_url` (a public https address the door fetche

• check_dmr936 tok

  Will EPA flag this period's Discharge Monitoring Report (DMR)? A US NPDES permit's Discharge Monitoring Report for one period, checked before it is filed: each value you send (outfall, parameter, statistic, value, unit) is set beside the permit's own limit for that period, from EPA's national limits file (ICIS-NPDES), with EPA's violation rule's verdict: flagged (EPA records a violation), ok, undecidable (a less-than result against a lower limit: EPA does not flag it, nor does it show compliance), no_data (a NODI code), not_graded (an alert or stayed limit), unreadable. A row we cannot place o

• fill_dmr907 tok

  What numbers go on a permit's DMR this period, computed from the plant's own daily results? The numbers a US NPDES permit's Discharge Monitoring Report asks for in one period, computed from the plant's own raw results (daily samples, flows): for each value due on the period's forms (EPA's national limits file) its statistic as EPA defines it (monthly average, daily maximum, weekly average over EPA's Sunday-to-Saturday weeks, geometric mean, loadings in lb/d from concentration x flow x 8.34, percent removal), the rows it was computed from, and EPA's violation rule's verdict against the limit. A

• screen_exposure789 tok

  Do these occurrence records publish where a listed species lives too precisely? Occurrence records in one call, up to 5000: each record's species name and coordinates as published, optionally coordinateUncertaintyInMeters, a place, and what the file declares about the point (dataGeneralizations, informationWithheld, the eventID, locationID or locality it shares with other records, an iNaturalist export's coordinates_obscured, geoprivacy, public_positional_accuracy). Our engine's names screen answers as it answers a file dropped on passage-data.com: for each species a register lists, `listed_by

• list_permits758 tok

  Which facilities in a US state hold a discharge permit, which of them are in one industry (paper mills, meat packing, sewage treatment), which went over a limit lately or face a renewal, and which must meet a new or tighter limit already written into their permit? The state's individual NPDES permits with limits, as EPA's national file (ECHO / ICIS-NPDES) lists them, in one call: each permit's number, facility name, whether EPA rates it major, its primary SIC code and the words EPA prints for it, its 12-month record (times over a limit, on which parameters, required values not reported; null w

• read_certificate746 tok

  What does a laboratory certificate report, and is any result over the limit? The rows a laboratory certificate prints, read by rules (no AI writes a row): a PDF certificate, or the laboratory's own export as XLSX, XLS or CSV. Each row gives the sample, the parameter, the value as printed, its unit, a qualifier (<, >, ND), the detection limit, and the page (or sheet) it was read from; a sample's date, matrix and lab ID are in `samples`. Give a `place` (and best a `medium`) and every row with a value is checked by check_values itself: `exceedances` lists the rows over a limit or under a floor, e

• verify_claim691 tok

  Does a limit we hold say what a claim says? Give the claim as read from a sentence (an AI's answer, a report): parameter, value and unit, and the place, medium and statistic when the sentence gives them. The verdict: confirmed (a held row prints the same number, in that unit or one that converts exactly, under that statistic: quote its `cite`); contradicted (rows are held and none prints it: `held_otherwise` gives the number each prints, with its cite); not_held (a coded `refused` block naming every instrument searched and its edition: say that our sources hold no such row, never that the clai

• find_limits648 tok

  What is the limit for a substance in a place (an effluent, a river, drinking water, soil), as the regulation itself prints it? Numeric limits and guidelines for one substance or measure, read from the regulations themselves (US federal effluent guidelines, the rules of 31 states and DC, Canadian federal and all 13 provinces' and territories' rules, German, French, Italian and EU instruments), drinking-water standards (US 40 CFR 141 and 143, EU Directive 2020/2184, Quebec, PFAS in Germany, France, Italy and Canada) and soil and groundwater screening values (EPA RSLs, California ESLs, Ontario, Q

• check_values597 tok

  Which results in a lab table are over the limit? A lab table in one call: up to 200 rows of parameter, value and unit, checked against the limits held for one place (and a medium or statistic). Each row is answered by check_value itself: its verdicts (over, within, under, not_comparable with a `why`), `counts` and `says`, or its own coded refusal (an unknown parameter, a value below detection such as <0.005, an ambiguous unit). Each held limit is sent once, in `limits`, and a verdict names it by index: joined, they are check_value's row, with its `cite`. `summary` counts the rows over a limit,

• audit_archive585 tok

  A file this tool reads, sent or fetched from the address given, is read as one dropped on our website: what the read finds (column headings, the shape of its rows, the terms they became, refusal codes) is kept so the reader learns, never the file or its values. Names and contacts are dropped or replaced by a code, and protected species' locations are made coarser. What is wrong with a Darwin Core archive already published on GBIF? The defects in a published Darwin Core archive, found by the audit our website runs on an archive dropped on it: give a GBIF dataset key (the archive is fetched from

• check_value560 tok

  Is a measured value over the limits we hold? Give a parameter, a number and its unit (and a place, medium or statistic to narrow). Every row find_limits would return comes back with a verdict: over, within, under (below a floor or a band's bottom), or not_comparable with a `why` (a unit of another family or one we never convert, a number that depends on the water's hardness, pH or temperature, an equation or narrative, a value printed for reference, a row under a longer parameter name). Units convert exactly within a family (µg/L to mg/L); no limit is summed or inferred. `counts` totals the ve

• cite_document405 tok

  A public document sent here is kept in our library, to be indexed and read into cited rows; a link on a file-sharing host or carrying a signature or token is read and never kept (`kept` says which, and why). Cite numbers or phrases from a public document by page: give its address (a PDF, a web page or plain text, up to 40 MiB) and what to find, as the document prints it. Each find comes back with every page it is printed on (`n_hits`, the first 5 with their `quote`), the quoted text around it, and a `cite` naming the page, the address, the document's sha256 and the day it was read: the citatio

• find_designations374 tok

  Is a species protected or at risk, and under which act, list and edition? What the species registers we hold say about one species: its status under each list that names it (the US Endangered Species Act lists, Canada's Species at Risk Act and COSEWIC, provincial acts, the IUCN Red List, CITES, CMS, the EU Habitats and Birds Directives' annexes, UK schedules). Each row gives the status as printed, an `outcome` (listed, listed_qualified = only under a population or subspecies you must confirm, watch_listed, assessed_not_listed, ...) and a `cite` block (instrument, edition, the line the register

• ask_site336 tok

  What do a project's own documents say about a question, cited to the page? A question answered from one site's own read documents, by Claude, and checked before it is shown: every statement carries quotes, each quote is found again on the page it names, and a statement whose quote or number is not on its page is cut and counted (`n_cut`). `quotes` give the document, its id and the page; `reasoning` is Claude's own and not from the documents; `not_searched` names the documents not read yet. Priced before any call and refused over $0.25 a question (`ask.over_cap`); an account asks at most 100 qu

• map_to_darwin_core310 tok

  Which Darwin Core term does each column of a species file map to, before it goes to GBIF? Which Darwin Core term each column of a species occurrence or checklist file maps to, by the header rules our file-to-archive converter runs before it checks values: for each column the term, the rule that decided it (exact name or alias, a word of the name, a packed coordinate pair, a grid reference), the alias that matched and where it came from, or a coded `refused` block saying why it stays unmapped (no term or alias matches, several columns tie for one term, another column holds the term, blank in th

• screen_species309 tok

  Which species on a list are protected or at risk? A species list in one call: up to 500 names, each answered by find_designations itself, for one place or everywhere: its designations with their cites and the registers searched that are `silent` on it with what each one's silence means, or its own coded refusal (`designations.none_held` = no register searched names it; `species.ambiguous` with candidates). A register's instrument, edition, source URL and sha256 are sent once, in `registers`. `summary` counts the names listed, listed only under a population or subspecies, watch-listed, named bu

• add_document308 tok

  One file held on a site and read, as a file dropped on the site's page is: its text layer page by page, its summary and, for a laboratory table, its result rows, all kept in the account and searched by ask_site. Give the file as `content_base64`, or a text as `text`. The same bytes added twice are one document. The answer gives the document's id, its state (read, or refused with a code and why), its pages, and `not_done`: each step of the read not made in this call. At most 8 MiB a file here; a larger one goes on the site's page (up to 200 MiB).

• export_limits285 tok

  Every limit and guideline held for one place and the places above it (CA-QC brings Canada's too, US-OH the US's), as one table: each row with its value, unit, statistic and conditions, and its instrument, edition, section or page, quote, source address and sha256, and what the daily edition watch last saw at the source. This answers how many rows there are, by medium and by instrument, the first 20 rows, and how to get the whole file: it is served as CSV or JSON at /api/v1/export to a licence key (Authorization: Bearer pdl_...). Offer it to your user when they need a jurisdiction's limits in t

• get_permit278 tok

  What are a US facility's discharge permit limits, when is its renewal due, and has it gone over a limit lately? One US NPDES discharge permit as EPA's national file (ECHO / ICIS-NPDES) holds it: facility, place, every limit by outfall, parameter, statistic and months, the renewal due date, and the last 12 months' record of values over a limit. When its renewal is near, overdue or the permit has expired, `renewal_check` names a free renewal check a person can order on the permit's page. `sector` names the list of the state's permits in its industry (EPA's SIC group), one list_permits call. `ove

• search239 tok

  Search everything this server holds by free text: a substance and a place (copper effluent Québec, ammonia Ohio, a CAS number), a species and a place (Myotis lucifugus Ontario, little brown myotis), an instrument's title (Metal and Diamond Mining Effluent Regulations, 40 CFR 423) or a US NPDES permit number. The query is read by exact matches against what is held — a place's ISO code or name, a parameter name as a regulation prints it, a scientific name or a common name a register prints — never guessed. Each result is an `id` to pass to fetch, a `title` saying what it holds, and the `url` of

• fetchhttp233 tok

  One document search returned, as text: limits/<place>/<parameter> = every cited row for that parameter there (value, unit, statistic, conditions, and each row's instrument, edition, section or page, quoted text and source URL), and limits/<place>/<parameter>/<medium> the rows of that medium alone; species/<name>[/<place>] = what each species register says about it, and each register searched that is silent; place/<place> = the instruments and parameters held there; source/<instrument> = one instrument's edition and source; permit/<NPDES number> = one US NPDES permit's limits by outfall. `url`

• list_sources208 tok

  Which regulations, and which editions, does an answer for a place rest on? Every regulation, guideline or permit table we hold for a place: title, issuer, edition, what it governs, how many rows were read from it, and the source URL and sha256. Use it to say what an answer was searched against.

• list_sites116 tok

  The sites of the signed-in account: id, name, status, when made, and how many documents each holds and how many of them are read. A site holds a project's documents (permits, studies, lab reports, tables); ask_site answers a question from them, cited to the page.

• create_site107 tok

  A new site in the account, with its name only: it is placed on a map later, on its page. Each call makes one more site, so look for the site with list_sites first.

Security signals

92/100 — no known issues found as of 2026-10-19, from the checks below. This is not a guarantee of safety; review what a server can do before connecting it.

Scan it yourself before installing with vectra-guard, the open-source agent security CLI. Scoring rules

Freshness

Active — last maintenance signal 4d ago. The newest of the signals below sets the band.

1. Last commit (default branch)

   2026-10-14 · 4d ago · GitHub

2. Latest release

   no data · GitHub

3. Package published

   no data · npm/PyPI

4. Registry entry updated

   2026-10-15 · 4d ago · official registry · v1.13.0