MCP Server

lastseen score

dev.lastseen/score
MCP & Agent Infrastructure Security Public & reachable MCP 2026-07-28

What this MCP does

Provides MCP server trust scores, dependency mortality facts, and dated schema or tool-count history from a notary register.

dependency_risk
An MCP server's dependencies and their mortality state (dead/dormant counts) from the register. Facts, not a score.
Input schema
{'type': 'object', 'required': ['id'], 'properties': {'id': {'type': 'string', 'description': 'e.g. io.github.owner/name'}}}
schema_history
Dated schema/tool-count observations for an MCP server (a series when known): first_seen, last_observed, drift events. Facts from the register, not a score.
Input schema
{'type': 'object', 'required': ['id'], 'properties': {'id': {'type': 'string', 'description': 'e.g. io.github.owner/name'}}}
trust_score
Derived trust score (0-100) for an MCP server, computed from the lastseen.dev register's dated observations by a published method. The score carries DEPTH (how many of 5 dimensions were computable) BOUND INTO the number as `display`, e.g. '80 · depth 2/5 · provisional' — a depth-2 score answers a narrower question (mortality, not merit). Not a prediction, not advice. Methodology: score.lastseen.dev/methodology.
Input schema
{'type': 'object', 'required': ['id'], 'properties': {'id': {'type': 'string', 'description': 'MCP schema-server identifier, e.g. io.github.owner/name'}}}
Added
dependency_risk
Sept. 17, 2026, 12:39 p.m.
Added
schema_history
Sept. 17, 2026, 12:39 p.m.
Added
trust_score
Sept. 17, 2026, 12:39 p.m.