EchelonGraph CVE & Exposure

Check an SBOM against the advisory corpus

check_sbom

Read-onlyIdempotent

Check a dependency list against EchelonGraph's advisory corpus, one verdict per component. For container images and Kubernetes pods, the input is an SBOM of each image, or its purls. Pass purls (package URLs, up to 2,000 distinct, 10,000 with repeats) or sbom (a CycloneDX or SPDX JSON document, up to 5,000,000 characters). This server reads the document's purls; only they are sent to the API, in POST bodies of at most 200, never in a URL; the document itself is not sent on. Run from npm, this server is on your machine; over the hosted endpoint (mcp.echelongraph.io) it is EchelonGraph's, and the document is the request body, accepted up to 6 MiB. data.results holds one row per component sent, in order, with verdict (affected, not_affected, undetermined or not_assessed), not_assessed_reason, cve_ids, matched_package and matched_via (a deb or apk purl's upstream qualifier matches as its source package); each match carries fixed_in (the next unaffected version) or null with fixed_in_reason. data.summary counts the verdicts. not_affected is the only clean verdict: not_assessed (no verdict, as for a deb, apk or rpm purl without a distro qualifier naming its release, which EchelonGraph does not guess) and undetermined are not, and the note counts both. The API allows 1,200 components a minute per caller; on a 429 the tool waits out Retry-After, up to 50 seconds a call, then answers what it has, the rest in data.not_sent_purls, not clean. Input with more than 2,000 distinct purls is refused, not truncated. Past 30,000 characters of JSON, the first text block holds data cut to fit, and the note says what the cut leaves out and where to read it (TEXT CUT); so is structured data (DATA CUT), unless full: true. Cut, each row keeps index, purl, verdict, not_assessed_reason and cve_ids at least, each match its fixed_in while kept; not_affected rows leave the text first, then not_assessed ones; not_sent_purls keeps its first 10.

Input Schema

Name	Required	Description
`full`	No	true: data in the structured result is the answer whole, however long. Without it, a structured result past 30,000 characters of JSON has its data cut (DATA CUT): in an order the note states, the entries of its longest lists keep only some of their fields, and then the lists only some of their entries; data_truncated is true, and truncated gives each list cut with its total, the number returned and whether its entries are thinned. Whole data is for a program; a client that sizes structured results, as Claude Code does against MAX_MCP_OUTPUT_TOKENS, can refuse an answer past its cap.
`sbom`	No	a CycloneDX JSON or SPDX JSON document, as JSON text or as an object; its purls are read by this MCP server and only they are sent to the API; over the hosted endpoint (mcp.echelongraph.io) the document is the request body
`purls`	No	package URLs to check, e.g. pkg:npm/lodash@4.17.20 or pkg:deb/debian/openssl@3.0.11-1~deb12u1?distro=debian-12 (up to 2,000 distinct, sent in batches of 200), in a list of at most 10,000 entries, repeats included

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed4 schema fields changedOct 25, 2026

changedInput schema / properties / purls / description

Previous value: -"package URLs to check, e.g. pkg:npm/lodash@4.17.20 or pkg:deb/debian/openssl@3.0.11-1~deb12u1?distro=debian-12 (up to 2,000 distinct, sent in batches of 200)"New value: +"package URLs to check, e.g. pkg:npm/lodash@4.17.20 or pkg:deb/debian/openssl@3.0.11-1~deb12u1?distro=debian-12 (up to 2,000 distinct, sent in batches of 200), in a list of at most 10,000 entries, repeats included"

addedInput schema / properties / purls / maxItems
```
Added value: +10000
```

changedInput schema / properties / sbom / anyOf

Previous value: -[
-  {
-    "type": "string"
-  },
-  {
-    "additionalProperties": {},
-    "propertyNames": {
-      "type": "string"
-    },
-    "type": "object"
-  }
-]New value: +[
+  {
+    "type": "string"
+  },
+  {
+    "additionalProperties": {},
+    "maxProperties": 64,
+    "propertyNames": {
+      "type": "string"
+    },
+    "type": "object"
+  }
+]