Brapi MCP Server

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "brapi-mcp-server": {
      "type": "http",
      "url": "https://brapi.caseyjhand.com/mcp"
    }
  }
}

22 tools

• brapi_connect

  Open a connection to a BrAPI v2 server, authenticate, and return the full orientation envelope (server identity, capability profile, content summary, suggested next tools). Other BrAPI tools connect an alias the server has a URL configured for (a built-in or operator-configured…

• brapi_build_phenotype_matrix

  Pull observations across one or more studies and pivot them into a germplasm × trait matrix materialized as a canvas dataframe. Returns a dataframe handle (read it with brapi_dataframe_describe and brapi_dataframe_query) plus a summary of dimensions and aggregate method…

• brapi_server_info

  Return the full orientation envelope for a BrAPI connection — server identity, capabilities, content counts, suggested finders, and notes. Pass forceRefresh to refetch the cached capability scan; pass an alias to read a non-default connection.

• brapi_describe_filters

  List the valid filter names for a BrAPI endpoint (studies, germplasm, observations, variables, images, variants, locations) — companion lookup for the `extraFilters` passthrough on any `find_*` tool. Entries reflect the BrAPI v2.1 spec; individual servers may implement subsets.

• brapi_find_studies

  Locate studies matching crop, trial type, season, location, or program. Enriches results with program/trial/location context in one call. results[] holds the leading matches up to loadLimit and a 24,000-byte budget; when it holds fewer rows than matched, the matched set is…

• brapi_get_study

  Fetch a single study by DbId with its program, trial, and location records resolved where those lookups succeed. Response includes cheap observation/observation-unit/variable counts as drill-down signals.

• brapi_find_germplasm

  Find germplasm by name, synonym, accession number, PUI, crop, or free-text query. Matches across registered synonyms. results[] holds the leading matches up to loadLimit and a 24,000-byte budget; when it holds fewer rows than matched, the matched set is materialized as a…

• brapi_get_germplasm

  Fetch a single germplasm by DbId with attributes and direct parents. Response companions report study count, direct parent count, and direct descendant count — signals for pedigree depth and observation coverage.

• brapi_walk_pedigree

  Walk germplasm ancestry or descendancy as a deduplicated DAG with cycle detection and depth limits. leafCount counts graph terminals, confirmedLeafCount counts successfully verified leaves, and frontier records unresolved directions. Nodes and edges each fit loadLimit and a…

• brapi_germplasm_performance

  Aggregate a single germplasm's observations across studies, returning per-variable statistics (n, mean, median, sd, min, max), contributing studies, seasons, and collection coverage. SGN/Breedbase uses advertised germplasm-scoped observation units with embedded measurements…

• brapi_find_variables

  Find observation variables (traits) by name, trait class, ontology term, or free-text query. Free-text queries are ranked against every fetched row by PUI, name, synonym, and trait text; a candidate carries the ontology PUI of its row as termId when the row has one. results[]…

• brapi_find_observations

  Pull observation records filtered by study, germplasm, variable, season, or observation unit. Without a studies, trials, observationUnits, or observations anchor, a GET query first runs a one-row count probe and skips the bulk pull (warnings says so) when the probe fails or…

• brapi_find_images

  Filter images by observation unit, observation, study, descriptive ontology term, file name, or MIME type. Returns metadata only — use brapi_get_image to fetch bytes inline. results[] holds the leading matches up to loadLimit and a 24,000-byte budget; when it holds fewer rows…

• brapi_get_image

  Fetch image bytes for up to 5 imageDbIds and return them inline as `type: image` content blocks. Falls back to the metadata `imageURL` when the server lacks dedicated image-content delivery or that request fails. No filesystem side-effects.

• brapi_find_locations

  Find research stations / field sites by country, abbreviation, type, location ID, or free-text. Countries filter by ISO 3166-1 alpha-3 code via countryCodes, or by free-form English country name via countryNames (resolved client-side to alpha-3 — "Uganda" → "UGA"). Optional bbox…

• brapi_find_variants

  Find variant records by variant set, reference sequence, or genomic region (start/end, 0-based inclusive / exclusive per the BrAPI spec; servers may differ). results[] holds the leading matches up to loadLimit and a 24,000-byte budget; when it holds fewer rows than matched, the…

• brapi_find_genotype_calls

  Pull genotype calls for a germplasm × variant set. Filter to bound cost — at minimum, set `variantSetDbId` or `germplasmDbIds`. The upstream pull is capped by deployment policy; when the pull is truncated, narrow the filters. results[] holds the leading calls up to `loadLimit`…

• brapi_export_genotype_matrix

  Pull genotype calls for a germplasm × variant set and pivot them into a matrix. `matrix-json` registers a wide canvas dataframe; `vcf-lite` adds VCF-subset text in `vcf`; `plink` adds .ped/.map text in `ped`/`map`. Text formats pull /variants metadata and convert zero-based…

• brapi_dataframe_describe

  Start here after a spillover. Lists dataframes (or describes one) with columns, row counts, and originating-source provenance. The dataframe name appears inline on every find_* response that spilled (`result.dataframe.tableName`) — pass it as `dataframe` to inspect schema and…

• brapi_dataframe_query

  Run SQL across in-memory dataframes. Dataframes auto-populate when find_* tools spill (named `df_<uuid>`) — the dataframe name appears inline on every find_* response that spilled (`result.dataframe.tableName`), so the typical flow is find_* → read the name → query here. Use…

• brapi_raw_get

  Passthrough to BrAPI GET /{path} without foreign-key resolution. List results (result array or result.data) return a leading preview within loadLimit and a 24,000-byte budget on each serialized row representation; an oversized first row returns no inline rows. Omitted fetched…

• brapi_raw_search

  Passthrough to BrAPI POST /search/{noun}, polling async search IDs. Sends loadLimit as the initial pageSize unless body.page/pageSize drives explicit paging. List previews fit loadLimit and a 24,000-byte budget on each serialized row representation; an oversized first row…

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