H1b
NPM · @PIPEWORX/MCP-H1B · 2 COMPONENTS
H-1B MCP — US H-1B visa sponsorship & wage data from DOL Labor Condition Application (LCA)…
Available components
Last scanned (11 hours ago)
Scores higher than 72% of npm servers
Category CRM and Sales
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 → Why this is hard to score →
Supply Chain Security100
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- No production dependencies, so there is no dependency health to assess. View diagnostics → Pass
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to pipeworx-io/mcp-h1b). View diagnostics → Pass
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 2 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability65
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 693 tokens (~231/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- 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
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 4 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
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.
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.
- 3 Nov 26 +26
- Malware scan: unverified → pass ▲ security
- Known CVEs: unverified → pass ▲ security
- Dependency health: unverified → pass ▲ functional
- 2 Nov 26 −26
- Malware scan: pass → unverified ▼ security
- Known CVEs: pass → unverified ▼ security
- Dependency health: pass → unverified ▼ functional
- Package version: 0.3.0 → 0.3.1 functional
- 1 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.
- 30 Oct 26 +1
- Security disclosure: unverified → fail ▼ functional
- 29 Oct 26 79
First indexed and scored.
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 5 Nov 2026 · Analysed npm/@pipeworx/mcp-h1b@0.3.1
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | pipeworx-io/mcp-h1b |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/pipeworx-io/mcp-h1b/.github/workflows/publish.yml@refs/heads/main |
| Rekor log index | 3637387613 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:8846a9308c52e119fc07768f031dd0275ae947b9fd4eef4400acae26f059dfbb8eddc7bcacd65adee7e322f0c63aa4acb072fbfe44ebe2aec6b56e245 |
Background: How many MCP packages publish verified provenance →
Dependencies 0 packages
| Packages resolved | 0 |
|---|---|
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
h1b_employer_sponsorship ~210
Check whether a US employer sponsors H-1B visas and profile their sponsorship, from DOL Labor Condition Application (LCA) disclosures. Answers 'does company X sponsor H-1B / green cards' for recruiting and candidate advising. Returns the number of certified LCA filings, base-salary range (min / median / max), the top sponsored job titles, and top work locations for the employer. Filter by year (DOL federal fiscal year, Oct-Sep, for recent years); defaults to the latest full year. Employer name is matched as the disclosed legal name (e.g. 'Google', 'Amazon.com Services').
| Name | Type | Req | Description |
|---|---|---|---|
| employer | string | yes | Employer name to look up, e.g. "Google", "Deloitte", "Amazon". |
| year | number|string | – | Filing year (e.g. 2024). Defaults to the most recent full year. Interpreted as DOL federal fiscal year (Oct-Sep) for recent years. |
No output schema declared.
No examples provided.
h1b_salary ~229
Look up real H-1B base salaries for a job title from DOL LCA disclosures — a market wage benchmark backed by actual filed salaries (not estimates). Answers 'what do H-1B software engineers earn at company X / in city Y'. Filter by job title, and optionally by employer, city, and year. Returns salary statistics (count, min / median / average / max) plus a sample of individual records (employer, title, salary, location, dates).
| Name | Type | Req | Description |
|---|---|---|---|
| city | string | – | Optional work city, e.g. "SEATTLE" or "NEW YORK". |
| employer | string | – | Optional employer name to scope to, e.g. "Meta". |
| job_title | string | yes | Job title to search, e.g. "software engineer", "data scientist". Matched as a substring of the disclosed title. |
| limit | number|string | – | Max sample records to return (default 15, max 50). |
| year | number|string | – | Filing year (e.g. 2024). Defaults to the most recent full year. |
No output schema declared.
No examples provided.
h1b_top_sponsors ~200
Find which US employers sponsor the most H-1B visas for a given job title (optionally in a specific city) — a candidate-sourcing / target-account signal for recruiting. Answers 'which companies sponsor the most data engineers in Austin' or 'top H-1B sponsors for nurses'. Returns employers ranked by certified LCA filings for the role, each with their filing count and median base salary. Backed by real DOL LCA disclosures.
| Name | Type | Req | Description |
|---|---|---|---|
| city | string | – | Optional work city to scope to, e.g. "AUSTIN" or "NEW YORK". |
| job_title | string | yes | Job title to rank sponsors for, e.g. "data engineer", "physical therapist". |
| limit | number|string | – | Max employers to return (default 15, max 50). |
| year | number|string | – | Filing year (e.g. 2024). Defaults to the most recent full year. |
No output schema declared.
No examples provided.
How do I install the H1b MCP server?
H1b runs locally as an npm package, launched with npx -y @pipeworx/mcp-h1b. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @pipeworx/mcp-h1b
claude mcp add pipeworx-io-h1b -- npx -y @pipeworx/mcp-h1b
What is the H1b MCP server?
H1b is an MCP server listed in the public MCP registry as io.github.pipeworx-io/h1b. H-1B MCP, US H-1B visa sponsorship & wage data from DOL Labor Condition Application (LCA)… This page covers its npm package (@pipeworx/mcp-h1b).
Is the H1b MCP server safe to use?
H1b scores 82 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the H1b MCP server expose?
H1b exposes 3 tools: h1b_employer_sponsorship, h1b_salary, h1b_top_sponsors. Their descriptions and schemas cost roughly 639 tokens of context every time the server is loaded.
Is the H1b MCP server still maintained?
H1b is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the H1b MCP server under?
H1b declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.