Search / dev.lastseen/score
protogridR0· no sign-inTrust scores and dated liveness/drift facts for MCP servers, from the lastseen.dev notary register.
v1.0.1 · active · website · descriptor JSON · versions
{
"mcpServers": {
"score": {
"type": "http",
"url": "https://score.lastseen.dev/mcp"
}
}
}claude mcp add --transport http score https://score.lastseen.dev/mcp[mcp_servers.score]
url = "https://score.lastseen.dev/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"score": {
"type": "remote",
"url": "https://score.lastseen.dev/mcp",
"enabled": true
}
}
}{
"mcpServers": {
"score": {
"type": "http",
"url": "https://score.lastseen.dev/mcp"
}
},
"deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=score&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vc2NvcmUubGFzdHNlZW4uZGV2L21jcCJ9"
}{
"servers": {
"score": {
"type": "http",
"url": "https://score.lastseen.dev/mcp"
}
}
}{
"mcpServers": {
"score": {
"httpUrl": "https://score.lastseen.dev/mcp"
}
}
}extensions:
"score":
enabled: true
name: "score"
type: streamable_http
uri: "https://score.lastseen.dev/mcp"
timeout: 300
protocol.modernnewest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28protocol.statelessonly applies to 2026-07-28 serversprotocol.transportstreamable HTTPprotocol.list_ttlonly applies to 2026-07-28 serversauth.prm, auth.as_metadata, auth.cimdno remote uses OAuthauth.secret_in_urlno templated URLtools.descriptionsevery tool has a descriptiontools.description_lengthdescriptions are concisetools.schemasevery tool has an object input schematools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky onestools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: trust_score (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); schema_history (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); dependency_risk (readOnlyHint, destructiveHint, idempotentHint, openWorldHint)tools.token_costabout 605 tokens to load every tooltools.api_dumptools are not a one-to-one API dumpstability.changes3 tool changes in 30 daysstability.rug_pull3 tools kept their name but changed most of their description in 30 days; review before trusting themdeps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI packagedependency_riskchangeddescriptionmeaning changedAn MCP server's dependencies and their mortality state (dead/dormant counts) from the register. Facts, not a score.
When to call: before you connect to or recommend an MCP server, when you care whether its declared dependencies were observed dead or dormant in the lastseen.dev register. Returns: dated facts, not a score: depends_on[], dead_dependency_count, dormant_dependency_count, n, provenance. Empty depends_on or zero counts means no dependency edges were on record for that id as of the response, not a guarantee of zero risk. Example: {"id":"io.github.06ketan/medium-ops"} id: MCP schema-server identifier whose dependency edges to inspect (e.g. io.github.owner/name).
schema_historychangeddescriptionmeaning changedDated 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.
When to call: before you rely on an MCP server's tools being stable, e.g. you are about to integrate it, pin tool names, or check whether the tool list changed under the same server id. Returns: dated facts, not a score: first_seen, last_observed, drift_events, n, and observations[] with observation_date, tools_hash, tool_count (may be null), changed. Use trust_score for the derived score and dependency_risk for dependency mortality counts. Example: {"id":"io.github.06ketan/medium-ops"} id: MCP schema-server identifier (e.g. io.github.owner/name). Same id space as trust_score.
trust_scorechangeddescriptionmeaning changedDerived 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.
When to call: before you connect to, install, wire into an agent, or recommend an MCP server, to check what the public record shows about whether it is still maintained. Pass the MCP schema-server id. Returns: JSON with trust_score (0 to 100 or null), display (score · depth · provisional), depth/depth_max, per-dimension values (liveness, maintenance, adoption, spec_currency, dependency_health; null = unknown, never invented), effective_weights, resolution method/confidence, status (scored | unresolved | insufficient_data), methodology URL. Depth 2 answers mortality more than merit; cite display as-is. Not a prediction, not advice, not a ranking of alternatives. Example: {"id":"io.github.06ketan/medium-ops"} id: MCP schema-server identifier (e.g. io.github.owner/name or owner/name). Not an npm package name, Action slug, or Docker image.
Full history: list_changes · trend: quality JSON.
Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.
+dns-namespace +website +reachable +uptime-96% +updated-21d-ago -no-repository
Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.
| remote | auth | reachable | uptime 30d | p50 | protocol | last ok |
|---|---|---|---|---|---|---|
https://score.lastseen.dev/mcp streamable-http | none | yes | 96% | 658 ms | 2025-06-18 | 2026-10-19 |
dependency_risk | When to call: before you connect to or recommend an MCP server, when you care whether its declared dependencies were observed dead or dormant in the lastseen.dev register. Returns: dated facts, not a score: depends_on[], dead_dependency_count, dormant_dependency_count, n, provenance. Empty depends_on or zero counts means no dependency edges were on record for that id as of the response, not a guarantee of zero risk. Example: {"id":"io.github.06ketan/medium-ops"} id: MCP schema-server identifier whose dependency edges to inspect (e.g. io.github.owner/name). |
schema_history | When to call: before you rely on an MCP server's tools being stable, e.g. you are about to integrate it, pin tool names, or check whether the tool list changed under the same server id. Returns: dated facts, not a score: first_seen, last_observed, drift_events, n, and observations[] with observation_date, tools_hash, tool_count (may be null), changed. Use trust_score for the derived score and dependency_risk for dependency mortality counts. Example: {"id":"io.github.06ketan/medium-ops"} id: MCP schema-server identifier (e.g. io.github.owner/name). Same id space as trust_score. |
trust_score | When to call: before you connect to, install, wire into an agent, or recommend an MCP server, to check what the public record shows about whether it is still maintained. Pass the MCP schema-server id. Returns: JSON with trust_score (0 to 100 or null), display (score · depth · provisional), depth/depth_max, per-dimension values (liveness, maintenance, adoption, spec_currency, dependency_health; null = unknown, never invented), effective_weights, resolution method/confidence, status (scored | unresolved | insufficient_data), methodology URL. Depth 2 answers mortality more than merit; cite display as-is. Not a prediction, not advice, not a ranking of alternatives. Example: {"id":"io.github.06ketan/medium-ops"} id: MCP schema-server identifier (e.g. io.github.owner/name or owner/name). Not an npm package name, Action slug, or Docker image. |
Schemas: list_tools.
{
"name": "dev.lastseen/score",
"title": "lastseen score",
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"remotes": [
{
"url": "https://score.lastseen.dev/mcp",
"type": "streamable-http"
}
],
"version": "1.0.1",
"websiteUrl": "https://score.lastseen.dev",
"description": "Trust scores and dated liveness/drift facts for MCP servers, from the lastseen.dev notary register."
}