Stack Facts

Name: Stack Facts
Author: us.srv.g5joilnmeep4ntz3nwezxt5dmu

MCP serverMCP

Signed EOL dates, exploited CVEs and LLM prices; pay per call in USDC, no account, no daily cap.

by us.srv.g5joilnmeep4ntz3nwezxt5dmuhomepage ↗v0.5.0

Is this yours?

This record is unclaimed

Wellknown found it in public sources; nobody has proven control of it yet. Claiming takes one click if the repository is under your GitHub account, or a small file on your domain otherwise. Verified owners get the badge, 15-minute checks, status alerts, edits that outrank crawled data, and a ranking boost.

Agents can do it too: POST https://wellknown.network/api/v1/claims with {"agent":"stack-facts","method":"well_known_file"} — machine-readable steps at claim.json, guide at /docs/claim.

Claim this record

Observed by Wellknown

Evidence

Everything here was measured by our prober or read from a registry. Nothing is self-reported.

30-day availability34/34 checks ok

Tools observed via MCP handshake

stackfacts_eol_product — List every release cycle of a product (Node.js, Python, Ubuntu…) and if it is still supported: EOL (end-of-life) date, support status, LTS, latest version.
stackfacts_eol_cycle — Check if a version is still supported (is python 3.12 still supported?): one release cycle, its EOL (end-of-life) date, support status, LTS, latest patch.
stackfacts_eol_check — Check runtimes and OS versions for EOL: is each still supported? Up to 50 product@version pairs, end-of-life date, support status; unknowns get suggestions.
stackfacts_eol_image — Check a container image for EOL: is node:18-alpine still supported? Maps its runtime, Java and base OS to end-of-life date and support status.
stackfacts_eol_snapshot — Download the signed EOL (end-of-life) snapshot (endoflife.date, MIT): support status of every product and cycle, still supported or not, plus its manifest.
stackfacts_kev_lookup — Check if a CVE is actively exploited (CISA KEV): in_kev, date added, remediation due date, required action and known ransomware use.
stackfacts_kev_check — Check up to 100 CVEs at once against CISA KEV (known exploited vulnerabilities); returns in_kev and the KEV details for each one.
stackfacts_kev_changes — List CVEs added to, removed from or changed in CISA KEV since a snapshot_id, so an agent can poll for newly exploited vulnerabilities.
stackfacts_kev_snapshot — Download the full signed CISA KEV snapshot: every known exploited vulnerability, with a manifest to verify the sha256 and signature.
stackfacts_models_lookup — Get an LLM model's price per million tokens (input, output, cached), context window, max output, capabilities and model deprecation date.
stackfacts_models_estimate — Estimate the USD cost of an LLM call from input, output and cached token counts, exact to the micro-dollar, with the price lines used.
stackfacts_models_cheapest — Find the cheapest model with tools and 128k context, or any limits you set: ranks the 10 cheapest LLMs by blended price per million tokens.
stackfacts_models_changes — List LLM models added, removed or changed (price per million tokens, context window, model deprecation date) since a snapshot_id.
stackfacts_models_watch — Check LLMs for what changed since your last call: changed records (with today's price and limits), removals, deprecated or soon deprecated, with snapshot dates.
stackfacts_models_snapshot — Download the full signed LLM model catalogue (LiteLLM + models.dev, MIT): prices, limits and capabilities, with a verifiable manifest.
stackfacts_stack_check — Check dependencies, runtimes and OS versions in one call: OSV for up to 50 purls, EOL for 50 product@version pairs, CISA KEV hits, suggestions for unknowns.
stackfacts_osv_check — Check dependencies or a lockfile for vulnerable and malicious packages: up to 50 purls, or a package-lock, yarn.lock, requirements.txt or poetry.lock, on OSV.
stackfacts_preflight — Call before installing a package an LLM suggested: one npm, PyPI or purl version against OSV, CISA KEV and EOL data. Returns ok, warn or block with reasons.
stackfacts_cve_lookup — Get any CVE: CISA KEV entry, CVSS score and patch priority, plus every OSV advisory aliased to it, with affected packages and fixed versions.
stackfacts_cwe_lookup — Get one MITRE CWE weakness by id (79 or CWE-79): name, status, description and MITRE link. From the CWE catalogue (v4.20); MITRE notice on every answer.
stackfacts_technique_lookup — Get one technique by id (T1055.011): name, tactics, platforms, description, mitigations, detection, data sources and link. MITRE ATT&CK v20.0; credited.
stackfacts_capec_lookup — Get one MITRE CAPEC attack pattern by id: severity, likelihood, prerequisites, mitigations, related CWE and ATT&CK ids and MITRE link.
stackfacts_domain_lookup — Get the public suffix, registrable domain and subdomain of a host name from the Mozilla Public Suffix List, with the matching rule and section.
stackfacts_port_lookup — Get the IANA service name, transport, description and reference for a port number from the IANA Service Name and Transport Protocol Port Number Registry.
stackfacts_control_lookup — Get one NIST SP 800-53 Rev 5 security control or enhancement by id (AC-2, AC-2(1)): title, statement, guidance, related controls and status.
stackfacts_bcp47_lookup — Get an IANA language tag (en-AU, zh-Hant) part by part: type, description, scope, deprecation and preferred value from the Language Subtag Registry.
stackfacts_tz_lookup — Get an IANA time zone (Europe/Berlin) or alias: current UTC offset, abbreviation, DST summary and backward-compatible names from tzdata.
stackfacts_package_card — Get an npm or PyPI package's latest version, publish dates, deprecation or yank, SPDX licence, repository and runtime range.
stackfacts_license_check — Call before adding a dependency: check SPDX licences or packages against your project licence and use, with a compatibility verdict per item.
stackfacts_cve_prioritize — Call before patching: rank up to 100 CVEs by CISA KEV status, then CVSS base score.
stackfacts_cve_search — Find CVEs by keyword or package name in CISA KEV and OSV (not all of NVD), with KEV status and CVSS v3 where an OSV advisory has one.
stackfacts_package_preflight — Call before installing an npm or PyPI package: latest or given version, licence, OSV vulns, CISA KEV CVEs, deprecation or yank. Returns ok, caution or block.
stackfacts_upgrade_delta — Check moving an npm or PyPI package from one version to another: advisories fixed or introduced, KEV, licence, runtime. Returns go, review or no_go.
stackfacts_lockfile_diff — Check npm or PyPI purl lists or raw lockfiles: upgrades judged on advisories, KEV, licence; same version, other hash = hash_mismatch. Returns go, review, no_go.
stackfacts_stack_watch — Check dependencies, runtimes and OS versions for what changed since your last call: EOL passed or near, new OSV advisories, new CISA KEV hits. Returns a token.
stackfacts_preview — Preview a dataset for free: sample end-of-life products, newest CISA KEV entries, LLM prices, a package card or a licence verdict.
stackfacts_try — Try a paid answer for free on a fixed example: nodejs end-of-life cycles, CVE-2021-44228 in CISA KEV, or openai/gpt-4o prices.
stackfacts_index — List the valid ids for free: end-of-life product names and aliases, or LLM provider/model ids, so a paid call never misses.
stackfacts_validate — Validate an id for free. Privacy: only an unknown EOL id is logged (access log, miss field); a 400 logs the input name, never its value. No other id is stored.
stackfacts_manifest — Get the signed manifest of a dataset's latest snapshot for free: snapshot_id, sha256, record count, source, licence and signature.
stackfacts_keys — Get the Ed25519 public keys (JWK) that verify the signature on every answer and snapshot manifest.

when	check	result	http	latency	detail
1 h ago	mcp initialize	ok	200	368 ms	server stackfacts 0.6.0 · protocol 2025-06-18 · 41 tools
8 h ago	mcp initialize	ok	200	361 ms	server stackfacts 0.6.0 · protocol 2025-06-18 · 41 tools
15 h ago	mcp initialize	ok	200	364 ms	server stackfacts 0.6.0 · protocol 2025-06-18 · 41 tools
22 h ago	mcp initialize	ok	200	370 ms	server stackfacts 0.6.0 · protocol 2025-06-18 · 41 tools
28 h ago	mcp initialize	ok	200	377 ms	server stackfacts 0.6.0 · protocol 2025-06-18 · 41 tools
34 h ago	mcp initialize	ok	200	367 ms	server stackfacts 0.6.0 · protocol 2025-06-18 · 41 tools
2 d ago	mcp initialize	ok	200	372 ms	server stackfacts 0.6.0 · protocol 2025-06-18 · 41 tools
2 d ago	mcp initialize	ok	200	1054 ms	server stackfacts 0.6.0 · protocol 2025-06-18 · 41 tools
2 d ago	mcp initialize	ok	200	363 ms	server stackfacts 0.6.0 · protocol 2025-06-18 · 41 tools
3 d ago	mcp initialize	ok	200	387 ms	server stackfacts 0.6.0 · protocol 2025-06-18 · 41 tools

Stack Facts

This record is unclaimed

Evidence

What the publisher says

Capabilities

Where this record came from