Starfetch

NPM · @STARFETCH-JS/MCP · SCANNED AUG 3

Query public astronomy catalogs through metadata-first TAP and ADQL tools.

Available components

+45 this week 80 80 Trust /100

Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →

Supply Chain Security83

No malware found by supply-chain analysis.Pass
CVE check failed: a known medium-severity CVE affects @hono/node-server 1.19.17, reached via @modelcontextprotocol/sdk > @hono/node-server. A fixed version is available. View diagnostics → Fail
No install/post-install scripts declared.Pass
Only part of the dependency tree could be resolved (99 of 103), so this covers what we could see, not the whole tree. View diagnostics → Partial

Provenance & Transparency97

Source repository is publicly reachable at the declared URL. View diagnostics → Pass
Cryptographically verified build provenance (signed, bound to starfetch-js/starfetch). View diagnostics → Pass
Clear OSI-approved license (MIT).Pass
Actively maintained (last published 8 days ago).Pass
Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail

Schema Quality & AI Usability85

100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
AI-judged instruction clarity (excellent).Pass
Tool/resource definitions use about 1553 tokens (~62/item across 25 items; 12 tools + 13 resources), lean.Pass
Usage-examples check failed: none of the tools include examples. See how to fix → Fail

Stability & Change Management23

Stability observed for 7 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial

Tool Coverage100

100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
100% of tool parameters carry a description.Pass
Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass

Capabilities100

Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass

Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

npm · @starfetch-js/mcp

Claude Codex opencode OpenClaw Hermes Other

# add to Claude Code

claude mcp add starfetch-js-starfetch -- npx -y @starfetch-js/mcp

# add to Codex CLI

codex mcp add starfetch-js-starfetch -- npx -y @starfetch-js/mcp

// opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "starfetch-js-starfetch": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@starfetch-js/mcp"
      ],
      "enabled": true
    }
  }
}

# add to OpenClaw

openclaw mcp add starfetch-js-starfetch --command npx --arg -y --arg @starfetch-js/mcp

# ~/.hermes/config.yaml

mcp_servers:
  starfetch-js-starfetch:
    command: "npx"
    args: ["-y", "@starfetch-js/mcp"]

// mcp.json

{
  "mcpServers": {
    "starfetch-js-starfetch": {
      "command": "npx",
      "args": [
        "-y",
        "@starfetch-js/mcp"
      ]
    }
  }
}

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

3 Aug 26 +1

No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes.
2 Aug 26 +53
- GHSA-frvp-7c67-39w9 affects this package: medium ▼ security
- Known CVEs: unverified → fail ▼ security
- Install scripts: unverified → pass ▲ security
- Provenance: unverified → pass ▲ security
- Malware scan: unverified → pass ▲ security
- The attested source repository moved: starfetch-js/starfetch security
- Schema quality: unverified → excellent ▲ functional
- Maintenance: unverified → pass ▲ functional
- MCP protocol: unverified → pass ▲ functional
- License: unverified → pass ▲ functional
- Dependency health: unverified → partial ▲ functional
- Stability: unverified → 0.20 ▲ functional
- Licence: MIT functional
31 Jul 26 −9
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
27 Jul 26 35

First indexed and scored.

Show 2 earlier entries Hide earlier entries

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 3 Aug 2026 · Analysed npm/@starfetch-js/[email protected]

Provenance verified

Ecosystem: npm · Outcome: verified

Reason: verified

Source repo:: starfetch-js/starfetch
Certificate issuer:: https://token.actions.githubusercontent.com
Certificate SAN:: https://github.com/starfetch-js/starfetch/.github/workflows/release.yml@refs/tags/v0.3.0
Rekor log index:: 2245902473
Predicate type:: https://slsa.dev/provenance/v1
Subject digest:: sha512:c77fe62d289160db952cec032ceacc167e20ea267a722f5331b19934eee3850bcb1208ebe582a8ea08f204ce1741ef48b00ab8cfa9a334543d0e2320d
Discovery method:: attestation_endpoint

Vulnerabilities 1 finding

ID	CVE	Severity	Vector	Fix available
GHSA-frvp-7c67-39w9		medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N	yes

Dependencies 99 packages

99 packages in the resolved dependency tree · 97 deprecated · 31 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 12 exposed · ~1,209 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability.

Tool Tokens

starfetch_list_presets List TAP presets ~26

List built-in TAP service presets before selecting an explicit target for metadata inspection.

Input Output Examples

Input schema present but exposes no named parameters.

Name	Type	Req	Description
data	array	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_registry_search Search TAP registry ~69

Search VO registry metadata when no built-in preset fits; inspect the selected service before querying it.

Input Output Examples

Name	Type	Req	Description
maxrec	integer	—	TAP MAXREC row limit for registry results.
query	string	—	Registry search text.
registryUrl	string	—	Explicit RegTAP service URL.

Name	Type	Req	Description
data	array	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_tap_availability Read TAP availability ~74

Check whether the selected TAP service reports itself available; an unavailable service is not an empty catalog result.

Input Output Examples

Name	Type	Req	Description
service	string	—	Known Starfetch TAP service preset selected for this workflow; use this or url.
url	string	—	Explicit TAP base URL selected for this workflow; use this or service.

Name	Type	Req	Description
data	object	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_tap_capabilities Read TAP capabilities ~73

Inspect the selected TAP service's languages, formats, and authentication requirements before using service-specific features.

Input Output Examples

Name	Type	Req	Description
service	string	—	Known Starfetch TAP service preset selected for this workflow; use this or url.
url	string	—	Explicit TAP base URL selected for this workflow; use this or service.

Name	Type	Req	Description
data	object	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_tap_columns List TAP columns ~91

Inspect names, datatypes, units, and descriptions for an exact metadata-discovered table before constructing ADQL.

Input Output Examples

Name	Type	Req	Description
service	string	—	Known Starfetch TAP service preset selected for this workflow; use this or url.
table	string	yes	Exact TAP table name returned by prior metadata inspection.
url	string	—	Explicit TAP base URL selected for this workflow; use this or service.

Name	Type	Req	Description
data	array	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_tap_job_delete Delete TAP async job ~82

Delete a TAP async job from the remote service.

Input Output Examples

Name	Type	Req	Description
jobIdOrUrl	string	yes	TAP async job id or absolute job URL.
service	string	—	Known Starfetch TAP service preset selected for this workflow; use this or url.
url	string	—	Explicit TAP base URL selected for this workflow; use this or service.

Name	Type	Req	Description
data	object	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_tap_job_fetch Fetch TAP async job result ~122

Fetch a TAP async job result. JSON and JSONL conversion supports VOTable, CSV, and TSV rows.

Input Output Examples

Name	Type	Req	Description
format	string	yes	MCP result output format.
jobIdOrUrl	string	yes	TAP async job id or absolute job URL.
service	string	—	Known Starfetch TAP service preset selected for this workflow; use this or url.
sourceFormat	string	—	Actual TAP result format for async job output.
url	string	—	Explicit TAP base URL selected for this workflow; use this or service.

Name	Type	Req	Description
data	—	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_tap_job_status Read TAP async job status ~84

Read the current phase and links for a TAP async job.

Input Output Examples

Name	Type	Req	Description
jobIdOrUrl	string	yes	TAP async job id or absolute job URL.
service	string	—	Known Starfetch TAP service preset selected for this workflow; use this or url.
url	string	—	Explicit TAP base URL selected for this workflow; use this or service.

Name	Type	Req	Description
data	object	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_tap_job_wait Wait for TAP async job ~149

Poll a TAP async job until completion, timeout, or terminal failure. This is an explicit wait and never starts a background job.

Input Output Examples

Name	Type	Req	Description
backoff	boolean	—	Increase the poll interval.
intervalMs	integer	—	Poll interval in milliseconds.
jobIdOrUrl	string	yes	TAP async job id or absolute job URL.
maxIntervalMs	integer	—	Maximum backoff interval in milliseconds.
service	string	—	Known Starfetch TAP service preset selected for this workflow; use this or url.
timeoutMs	integer	—	Wait timeout in milliseconds.
url	string	—	Explicit TAP base URL selected for this workflow; use this or service.

Name	Type	Req	Description
data	object	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_tap_query Run bounded TAP query ~184

Run a small bounded synchronous TAP ADQL query after inspecting the exact table and columns. Use TOP in ADQL and/or maxrec, and treat tool errors as failures rather than empty scientific results.

Input Output Examples

Name	Type	Req	Description
format	string	yes	MCP result output format.
maxrec	integer	—	TAP MAXREC row limit. Defaults to 100 when omitted.
query	string	yes	Exact metadata-backed ADQL query text. Use TOP for a query-level bound; do not use LIMIT.
runId	string	—	Optional TAP RUNID request value.
service	string	—	Known Starfetch TAP service preset selected for this workflow; use this or url.
uploads	array	—	TAP uploads forwarded to the service; local file paths are not supported.
url	string	—	Explicit TAP base URL selected for this workflow; use this or service.

Name	Type	Req	Description
data	—	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_tap_submit_job Submit TAP async job ~186

Submit metadata-backed bounded ADQL as an explicit TAP async job when synchronous querying is insufficient. Preserve the exact query and use starfetch_tap_query for small work.

Input Output Examples

Name	Type	Req	Description
maxrec	integer	—	TAP MAXREC row limit. Defaults to 100 when omitted.
query	string	yes	Exact metadata-backed ADQL query text. Use TOP for a query-level bound; do not use LIMIT.
requestFormat	string	—	TAP RESPONSEFORMAT request value for the async job result.
runId	string	—	Optional TAP RUNID request value.
service	string	—	Known Starfetch TAP service preset selected for this workflow; use this or url.
uploads	array	—	TAP uploads forwarded to the service; local file paths are not supported.
url	string	—	Explicit TAP base URL selected for this workflow; use this or service.

Name	Type	Req	Description
data	object	yes	—
diagnostics	object	yes	—

No examples provided.

starfetch_tap_tables List TAP tables ~69

List tables on the selected TAP service before choosing an exact table for ADQL.

Input Output Examples

Name	Type	Req	Description
service	string	—	Known Starfetch TAP service preset selected for this workflow; use this or url.
url	string	—	Explicit TAP base URL selected for this workflow; use this or service.

Name	Type	Req	Description
data	array	yes	—
diagnostics	object	yes	—

No examples provided.

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Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

27 Jul 3 Aug