runwayMCP

An MCP server that gives Claude Code real data for job search decisions.

When you paste a job posting URL into Claude Code, it can automatically check whether the company has a history of H-1B sponsorship — so you know before you spend hours on an application.

Built for job seekers who need visa sponsorship for US roles.

How it works

Claude Code launches this server over stdio and calls its tools when relevant. You don't invoke the tools directly — Claude decides when to call them based on the conversation.

You: "Evaluate this role for me: https://jobs.example.com/swe-123"
Claude:
  1. fetch_job_posting(url)          → job title, company, country, full JD
  2. check_visa_sponsorship(company) → H-1B history, approval rate, verdict
  3. [reasons over the data]         → fit analysis, red flags, application advice

The visa check only runs for US roles — Claude skips it for positions in other countries.

Status

Tool	Status
check_visa_sponsorship	✅ Working — real USCIS data
fetch_job_posting	✅ Working — Ashby and Greenhouse

Tools

check_visa_sponsorship(company: str) -> VisaResult

Looks up a company's H-1B petition history via the USCIS H-1B Employer Data Hub.

Pass the full employer name as it appears in the job posting (e.g. "Google LLC", "Microsoft Corporation"). Abbreviated names may match subsidiaries.

Returns: company, total_filings, approval_rate (0–1), verdict (green/yellow/red), source.

Verdict thresholds (calibrated against FY2026 data, ~36k employers):

• green — ≥ 5 filings AND approval rate ≥ 80% (active sponsor, top ~10%)
• yellow — ≥ 1 filing AND approval rate ≥ 50% (has sponsored before)
• red — no record or rate below threshold

Data is downloaded and cached at ~/.cache/runway-mcp/uscis_h1b.csv on first call (~2MB).

fetch_job_posting(url: str) -> JobPostingResult

Fetches and parses a job posting from a URL.

Returns: title, company, country, location, description, posted_date, source_url.

The country field in the output is what Claude uses to decide whether to call check_visa_sponsorship.

Supported job boards

Board	Status	Hosts
Ashby	✅ Supported	jobs.ashbyhq.com
Greenhouse	✅ Supported	boards.greenhouse.io, job-boards.greenhouse.io
LinkedIn	🔜 Coming soon	linkedin.com/jobs
Lever	⬜ Not yet	jobs.lever.co
Workday	⬜ Not yet	*.myworkdayjobs.com
Rippling	⬜ Not yet	app.rippling.com/jobs

Setup

1. Clone and install

git clone https://github.com/satovarb16/runwayMCP
cd runwayMCP
pip install -e ".[dev]"

2. Configure Claude Code

Add to your Claude Code settings.json (.claude/settings.json in the project, or ~/.claude/settings.json globally):

{
  "mcpServers": {
    "runway-mcp": {
      "command": "python",
      "args": ["-m", "server"],
      "cwd": "/absolute/path/to/runwayMCP"
    }
  }
}

Replace the cwd with your actual path. On Windows use double backslashes: "C:\\Users\\you\\runwayMCP".

3. Use it

Open Claude Code and ask it to evaluate a job posting. On first call, the server downloads the USCIS dataset (~2MB) to ~/.cache/runway-mcp/.

Updating USCIS data

The server downloads FY2023 data automatically on first run. For newer data:

1. Go to https://www.uscis.gov/tools/reports-and-studies/h-1b-employer-data-hub
2. Click Crosstab View → select fiscal year → Download to Excel → CSV
3. Replace ~/.cache/runway-mcp/uscis_h1b.csv with the downloaded file

The parser auto-detects encoding and column format across fiscal year versions.

Tool vs. reasoning boundary

These tools only fetch and shape data. Claude handles all reasoning:

• Whether to call check_visa_sponsorship (only for US roles)
• How to interpret the verdict in context
• Whether the role is a good fit overall

This is intentional — tools that encode judgment make Claude less useful, not more.

Tests

pytest -m contract      # fast contract tests
pytest -m integration   # server tool registration
pytest                  # full suite (50 tests)

Contributing

Next useful changes: LinkedIn support in fetch_job_posting, and additional job boards. PRs welcome.