Open Primitive MCP Server
open-primitive-mcp
npm
v1.2.0
Published by writesdavid — no publish provenance, so origin is unverified, but the source is public: the repository link below is self-declared yet readable, so you can inspect the code before adopting it.
MCP server for 33 tools across 30 federal data domains — courts, federal register, education, infrastructure, unclaimed property, entity graph, subscriptions, compliance, plus flights, cars, food, water, drugs, hospitals, health, nutrition, jobs, demograp
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 4 = 96. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −3 | capability blast radius (moderate) — client exposure if the model is manipulated |
| −1 | publisher verification (public source) — no provenance, but the source is public and inspectable |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 2
medium Hardcoded egress to an external endpoint (mcp.js)MTC-SRC-003
In the server's implementation (`mcp.js:343`): A hardcoded outbound call to a fixed external host inside server code is a classic exfiltration/telemetry channel — especially paired with reads of local data. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: ); const resp = await fetch(`https://api.openprimitive.com/v1/reclaim/search?${params}`); const data = await resp.js
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server mcp.js
medium Unconstrained URL/host parameter "webhook_url" on "create-subscription"MTC-CAP-007
Tool "create-subscription" takes a URL/host parameter "webhook_url" with no allowlist/pattern. An outbound-request tool with an unbounded destination enables SSRF and cloud-metadata access (e.g. 169.254.169.254).
Fix: Allowlist destinations or constrain the parameter; block private/link-local addresses server-side.
Location: tool create-subscription · inputSchema.properties.webhook_url
Tools 34
Each tool and what it can reach — statically extracted from the published source.
assess-compliancenetwork egresscreate-subscriptionnetwork egressfederated-querynetwork egressask-questionno sensitive capabilityget-air-qualityno sensitive capabilityget-alertsno sensitive capabilityget-broadbandno sensitive capabilityget-car-safetyno sensitive capabilityget-comparisonno sensitive capabilityget-demographicsno sensitive capability
Show 24 more tools ↓
get-drug-safetyno sensitive capabilityget-electricity-priceno sensitive capabilityget-eligibleno sensitive capabilityget-federal-register-documentno sensitive capabilityget-flightsno sensitive capabilityget-food-recallsno sensitive capabilityget-health-evidenceno sensitive capabilityget-hospital-qualityno sensitive capabilityget-jobsno sensitive capabilityget-location-profileno sensitive capabilityget-meat-safetyno sensitive capabilityget-nutritionno sensitive capabilityget-product-recallsno sensitive capabilityget-riskno sensitive capabilityget-safety-profileno sensitive capabilityget-schoolno sensitive capabilityget-sec-filingsno sensitive capabilityget-water-safetyno sensitive capabilityget-weatherno sensitive capabilityquery-entity-graphno sensitive capabilitysearch-court-recordsno sensitive capabilitysearch-federal-registerno sensitive capabilitysearch-schoolsno sensitive capabilitysearch-unclaimed-propertyno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (34 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v1.2.0 latest |
A 96/100 | 2 | 1.13.0 | 2026-09-07 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
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