Stack Facts

Get any CVE: its CISA KEV entry, if exploited, plus every OSV advisory aliased to it, with affected packages (purls), fixed versions and CVSS.

Check dependencies, runtimes and OS versions for EOL: is each still supported? Up to 50 product@version pairs to cycle, end-of-life date and support status.

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.

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.

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.

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.

List the valid ids for free: end-of-life product names and aliases, or LLM provider/model ids, so a paid call never misses.

List CVEs added to, removed from or changed in CISA KEV since a snapshot_id, so an agent can poll for newly exploited vulnerabilities.

Check up to 100 CVEs at once against CISA KEV (known exploited vulnerabilities); returns in_kev and the KEV details for each one.

Check if a CVE is actively exploited (CISA KEV): in_kev, date added, remediation due date, required action and known ransomware use.

Download the full signed CISA KEV snapshot: every known exploited vulnerability, with a manifest to verify the sha256 and signature.

Get the Ed25519 public keys (JWK) that verify the signature on every answer and snapshot manifest.

Call before adding a dependency: check SPDX licences or packages against your project licence and use, with a compatibility verdict per item.

Get the signed manifest of a dataset's latest snapshot for free: snapshot_id, sha256, record count, source, licence and signature.

List LLM models added, removed or changed (price per million tokens, context window, model deprecation date) since a snapshot_id.

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.

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.

Get an LLM model's price per million tokens (input, output, cached), context window, max output, capabilities and model deprecation date.

Download the full signed LLM model catalogue (LiteLLM + models.dev, MIT): prices, limits and capabilities, with a verifiable manifest.

Check dependencies for known vulnerabilities: up to 50 package purls (npm, PyPI, Go, crates.io, Maven) against OSV.dev, with fixed versions and CISA KEV flags.

Get an npm or PyPI package's latest version, publish dates, deprecation or yank, SPDX licence, repository and runtime range.

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.

Preview a dataset for free: sample end-of-life products, the newest CISA KEV entries or LLM prices, signed like the paid answers.

Check dependencies, runtimes and OS versions in one call: OSV advisories for up to 50 package purls, EOL status for 50 product@version pairs, CISA KEV hits.

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.

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.

Validate an id for free before paying: whether a product, product/cycle or provider/model exists, or a CVE id is well formed.