Crw MCP Server
by fastcrwFast, lightweight Firecrawl/Tavily alternative in Rust. Web scraper, crawler & search API with MCP server for AI agents. Drop-in Firecrawl-compatible API (/scrape, /crawl, /search). 2.3x faster than Tavily, 1.5x faster than Firecrawl in 1K-URL benchmarks. 6 MB RAM, single binary. Self-host or use managed cloud.
Crw is an open-source mcp server by fastcrw, written mainly in Rust, with 1,201 GitHub stars and the AGPL-3.0 license. Its code was last updated Oct 31, 2026.
Scan summary: scanned Nov 5, 2026 at commit 634cd43. Seen able to read environment and secrets. Scan policy
ScannedScanned. The automated checks below ran on the commit shown. Read each line for what was and was not covered.
Full scan at
634cd43 · Nov 5, 2026 ScannedStatic, secrets and dependency checks completed with no critical findings. BuildsIt installed from a fresh machine.
Passed. This check ran and found nothing it flags.Static code scanpassPassed. This check ran and found nothing it flags.
Passed. This check ran and found nothing it flags.Secrets scanpassPassed. This check ran and found nothing it flags.
Flagged. This check found an issue. See the findings below.Dependency audit46 known vulnerabilitiesfailFlagged. This check found an issue. See the findings below.
Passed. This check ran and found nothing it flags.Manifestserver.jsonpassPassed. This check ran and found nothing it flags.
Passed. This check ran and found nothing it flags.BuildpassPassed. This check ran and found nothing it flags.
Not applicable. This check does not apply to this kind of project, or it was not run in this scan.Boot & handshaken/aNot applicable. This check does not apply to this kind of project, or it was not run in this scan.
Not applicable. This check does not apply to this kind of project, or it was not run in this scan.Network egressn/aNot applicable. This check does not apply to this kind of project, or it was not run in this scan.
Not applicable. This check does not apply to this kind of project, or it was not run in this scan.Reproducible (×3)n/aNot applicable. This check does not apply to this kind of project, or it was not run in this scan.
Findings (54)
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.quinn-proto@0.11.16: 10 known vulnerabilitiesRUSTSEC-2026-0338, RUSTSEC-2026-0339, RUSTSEC-2026-0340, RUSTSEC-2026-0341, RUSTSEC-2026-0342 +5 more
Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key3 matches in this file
README.zh-CN.md:112 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
blog/crw-limitations.md:58 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
blog/crw-v0-0-10-release.md:43 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header2 matches in this file
blog/crw-v0-7-0-llm-release.md:36 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key3 matches in this file
README.md:227 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
blog/crw-search-api-release.md:27 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
blog/crawl4ai-alternatives.md:172 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header2 matches in this file
blog/crw-v0-0-2-release.md:20 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header2 matches in this file
blog/crw-vs-tavily-search-api-benchmark.md:121 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
blog/crw-v0-0-8-release.md:52 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
blog/best-self-hosted-scrapers.md:71 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
blog/exa-search-api-guide.md:58 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
blog/best-web-scraping-apis.md:50 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header5 matches in this file
blog/website-to-markdown.md:53 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header5 matches in this file
blog/web-scraping-beginners-guide.md:144 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
blog/firecrawl-vs-crawl4ai-vs-crw.md:568 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header3 matches in this file
blog/crw-on-5-dollar-vps.md:219 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header2 matches in this file
blog/web-search-api-for-ai-agents.md:123 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/docs/authentication.md:47 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
docs/docs/authentication.md:33 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header7 matches in this file
docs/docs/choose-endpoint.md:103 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header2 matches in this file
docs/docs/crawling.md:112 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header2 matches in this file
docs/docs/extract.md:116 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
docs/docs/installation.md:11 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
docs/docs/introduction.md:64 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
docs/docs/map.md:94 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header2 matches in this file
docs/docs/quick-start.md:40 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header3 matches in this file
docs/docs/pdf-parsing.md:44 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header4 matches in this file
docs/docs/recipe-js-spa.md:16 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
docs/docs/rest-api.md:52 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
docs/docs/scraping.md:109 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
docs/docs/search.md:109 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
docs/docs/troubleshooting.md:181 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header8 matches in this file
docs/docs/v2-api.md:108 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/docs/recipe-monitoring.md:120 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/llms-full.txt:77 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header
docs/llms-full.txt:65 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: curl-auth-header2 matches in this file
skills/crw-migrate/SKILL.md:70 - lowLow. Minor, or common in normal tools. Shown for information.event-listener@5.4.1: 1 known vulnerabilityRUSTSEC-2026-0221
Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.h2@0.4.15: 2 known vulnerabilitiesRUSTSEC-2026-0258, RUSTSEC-2026-0258
Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.rustls@0.23.41: 8 known vulnerabilitiesRUSTSEC-2026-0285, RUSTSEC-2026-0346, RUSTSEC-2026-0348, RUSTSEC-2026-0349, RUSTSEC-2026-0285 +3 more
Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.rustls-webpki@0.103.13: 2 known vulnerabilitiesRUSTSEC-2026-0382, RUSTSEC-2026-0382
Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.ttf-parser@0.25.1: 2 known vulnerabilitiesRUSTSEC-2026-0192, RUSTSEC-2026-0192
Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.webpki-root-certs@1.0.8: 2 known vulnerabilitiesRUSTSEC-2026-0383, RUSTSEC-2026-0383
Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.zstd@0.13.3: 1 known vulnerabilityRUSTSEC-2026-0391
Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.zstd-safe@7.3.0: 12 known vulnerabilitiesRUSTSEC-2026-0395, RUSTSEC-2026-0396, RUSTSEC-2026-0397, RUSTSEC-2026-0398, RUSTSEC-2026-0399 +7 more
Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.zstd-sys@2.1.0+zstd.1.5.7: 1 known vulnerabilityRUSTSEC-2026-0410
Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.idna@3.9.0: 1 known vulnerabilityPYSEC-2026-215
bench/requirements.txt - lowLow. Minor, or common in normal tools. Shown for information.tokio@1.53.1: 1 known vulnerabilityRUSTSEC-2026-0386
fuzz/Cargo.lock - lowLow. Minor, or common in normal tools. Shown for information.Reads environment variables not listed in the manifestCRW_API_URL, CRW_API_KEY, JUDGE_BASE_URL, JUDGE_API_KEY, JUDGE_MODEL, BENCH_SEARCH_LIMIT, BENCH_TIMEOUT, FASTCRW_BASE_URL, FASTCRW_API_KEY, BENCH_CONCURRENCY, BENCH_MAX_URLS, DIAG_OUT, DIAG_URLS_FILE, DIAG_FILTER, DIAG_DEBUG
- lowLow. Minor, or common in normal tools. Shown for information.Couldn't work out how to start the server. Set "entrypoint" in agent.json.
Network activity
During install
registry.npmjs.org
While running
Not run — the code wasn't started in this scan
Automated result for the commit shown. See our scan policy. View the scan log
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|---|---|---|---|---|
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