io.github.solsolettidev/nats-trail
NPM · @NATS-TRAIL/MCP
Read-only NATS and JetStream observability: trace a request across streams, rank what is broken.
Available components
Last scanned (21 hours ago)
Scores higher than 94% of npm servers
Category Monitoring and Observability
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 30 of 93 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency97
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to solsolettidev/nats-trail). View diagnostics → Pass
- Clear OSI-approved license (Apache-2.0).Pass
- Actively maintained (last published 33 days ago).Pass
- Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail
Schema Quality & AI Usability62
- AI-judged instruction clarity (fair).Partial
- Tool/resource definitions use about 1943 tokens (~69/item across 28 items; 28 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage85
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 54% of tool parameters carry a description.Partial
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 28 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 28 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Checks we ran (16)
- Malware scan
- Known CVEs
- Install scripts
- Dependency health
- Source repository
- Provenance
- License
- Maintenance
- Security disclosure
- Schema quality
- Stability
- Tool coverage
- Injection markers
- Destructive annotations
- Judged manipulation
- MCP protocol
Does not apply to this package (2)
- Endpoint SecurityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
- Transport & ReachabilityScored on hosted endpoints only. A package has no live endpoint of its own for us to probe.
The score does not measure everything. What the score does not measure →
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 26 Oct 26 +1
- Stability: 0.97 → pass security
- 25 Oct 26 −1
- Stability: pass → 0.97 functional
- 21 Oct 26 0
- Security disclosure: unverified → fail ▼ functional
- 20 Oct 26 0
- Security disclosure: fail → unverified ▼ functional
- 19 Oct 26 +1
- Stability: 0.97 → pass security
- 18 Oct 26 0
- Security disclosure: unverified → fail ▼ functional
- 17 Oct 26 +1
- Security disclosure: fail → unverified ▼ functional
- 15 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Analysed npm/@nats-trail/mcp@0.6.1
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | solsolettidev/nats-trail |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/solsolettidev/nats-trail/.github/workflows/release.yml@refs/tags/v0.6.1 |
| Rekor log index | 3065897889 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:c12ab651a3a0bf5b4eb99a5c6c2360604d52a5c1a5cf64426ffaf0dd656df53a6b9c5355447e856d1a1af015689eafadabbc2d82a290ccfcdec761e29 |
Background: How many MCP packages publish verified provenance →
Dependencies 93 packages
| Packages resolved | 93 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
natstrail.discover_subjects ~108
Discover which subjects carry traffic and what shape their payloads have. Use this first when the topology is unknown.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
| sample | integer | – | Messages to sample per subject for shape inference (default 10). |
| stream | string | – | – |
| subject | string | – | – |
No output schema declared.
No examples provided.
natstrail.enrich_incident ~146
Flat, destination-agnostic context for one incident: the reconstructed flow, related dead letters, current health findings and a one-sentence summary.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| correlationId | string | – | – |
| fromTs | integer | – | Window start in epoch milliseconds. |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
| requestId | string | – | – |
| toTs | integer | – | Window end in epoch milliseconds. |
| uiBaseUrl | string | – | Base URL used to build a deep link back into the Trace tab. |
No output schema declared.
No examples provided.
natstrail.enrich_sentry ~107
Collect trace and DLQ context for a Sentry issue.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| correlationId | string | – | – |
| fromTs | integer | – | Window start in epoch milliseconds. |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
| requestId | string | – | – |
| toTs | integer | – | Window end in epoch milliseconds. |
No output schema declared.
No examples provided.
natstrail.get_connection_status ~31
Get the current bridge connection state.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.get_health_summary ~57
What looks broken right now: consumers falling behind, redeliveries, dead letters and slow consumers, ranked worst first.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.get_kv_history ~59
Get the revision history of one KV key, including deletes.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | yes | – |
| contextId | string | yes | – |
| key | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.get_message_detail ~54
Get a single message detail by locator.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
| seq | integer | yes | – |
| stream | string | yes | – |
No output schema declared.
No examples provided.
natstrail.get_server_health ~45
Server version, uptime, traffic, memory and JetStream totals.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.get_stream_info ~44
Get one stream summary.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
| stream | string | yes | – |
No output schema declared.
No examples provided.
natstrail.list_audit ~31
List recent Integration API audit entries.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.list_consumers ~45
List consumers for a stream.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
| stream | string | yes | – |
No output schema declared.
No examples provided.
natstrail.list_contexts ~29
List sanitized configured contexts.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.list_correlation_keys ~48
List the correlation keys in force for a context and where they came from.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.list_filters ~28
List saved reusable filters.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.list_kv_buckets ~42
List JetStream Key/Value buckets.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.list_kv_keys ~51
List live keys and current values in a KV bucket.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | yes | – |
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.list_object_buckets ~40
List JetStream Object Store buckets.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.list_objects ~47
List object metadata in an Object Store bucket.
| Name | Type | Req | Description |
|---|---|---|---|
| bucket | string | yes | – |
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.list_server_connections ~41
List client connections with traffic and idle time.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.list_streams ~40
List JetStream streams for a context.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
No output schema declared.
No examples provided.
natstrail.reconstruct_flow ~120
Reconstruct the causal chain for one request_id or correlation_id: ordered steps, elapsed time between them, and which step failed.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| correlationId | string | – | – |
| fromTs | integer | – | Window start in epoch milliseconds. |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
| requestId | string | – | – |
| toTs | integer | – | Window end in epoch milliseconds. |
No output schema declared.
No examples provided.
natstrail.run_filter ~81
Run a saved filter by id or name.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| cursor | string | – | Resume cursor from a previous nextCursor. |
| filter | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
No output schema declared.
No examples provided.
natstrail.search_dlq ~90
Search dead-letter messages.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| fromTs | integer | – | Window start in epoch milliseconds. |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
| subject | string | – | – |
| toTs | integer | – | Window end in epoch milliseconds. |
No output schema declared.
No examples provided.
natstrail.search_messages ~137
Search bounded NATS/JetStream messages.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| correlationId | string | – | – |
| cursor | string | – | Resume cursor from a previous nextCursor. |
| fromTs | integer | – | Window start in epoch milliseconds. |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
| requestId | string | – | – |
| stream | string | yes | – |
| subject | string | – | – |
| text | string | – | – |
| toTs | integer | – | Window end in epoch milliseconds. |
No output schema declared.
No examples provided.
natstrail.suggest_correlation_keys ~101
Propose correlation keys from real traffic: fields that are near-unique per message and appear on more than one subject.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
| sample | integer | – | Messages to sample per subject (default 20). |
| stream | string | – | – |
No output schema declared.
No examples provided.
natstrail.trace_by_correlation_id ~94
Trace messages by correlation_id.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| correlationId | string | yes | – |
| fromTs | integer | – | Window start in epoch milliseconds. |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
| toTs | integer | – | Window end in epoch milliseconds. |
No output schema declared.
No examples provided.
natstrail.trace_by_key ~134
Trace messages by any configured correlation key. Prefer this over the request_id and correlation_id shortcuts: which identifiers exist is configuration, not a fixed list.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| fromTs | integer | – | Window start in epoch milliseconds. |
| key | string | yes | Name of a configured correlation key, e.g. trace_id. |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
| toTs | integer | – | Window end in epoch milliseconds. |
| value | string | yes | – |
No output schema declared.
No examples provided.
natstrail.trace_by_request_id ~93
Trace messages by request_id.
| Name | Type | Req | Description |
|---|---|---|---|
| contextId | string | yes | – |
| fromTs | integer | – | Window start in epoch milliseconds. |
| limit | integer | yes | Required maximum number of results. |
| maxScan | integer | – | Maximum messages scanned before returning a cursor (default 10000). |
| requestId | string | yes | – |
| toTs | integer | – | Window end in epoch milliseconds. |
No output schema declared.
No examples provided.
How do I install the io.github.solsolettidev/nats-trail MCP server?
io.github.solsolettidev/nats-trail runs locally as an npm package, launched with npx -y @nats-trail/mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @nats-trail/mcp
claude mcp add solsolettidev-nats-trail -- npx -y @nats-trail/mcp
What is the io.github.solsolettidev/nats-trail MCP server?
io.github.solsolettidev/nats-trail is an MCP server listed in the public MCP registry as io.github.solsolettidev/nats-trail. Read-only NATS and JetStream observability: trace a request across streams, rank what is broken. This page covers its npm package (@nats-trail/mcp).
Is the io.github.solsolettidev/nats-trail MCP server safe to use?
io.github.solsolettidev/nats-trail scores 91 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the io.github.solsolettidev/nats-trail MCP server expose?
io.github.solsolettidev/nats-trail exposes 28 tools: natstrail.list_contexts, natstrail.get_connection_status, natstrail.list_audit, natstrail.list_filters, natstrail.run_filter, and 23 more. Their descriptions and schemas cost roughly 1,943 tokens of context every time the server is loaded.
Is the io.github.solsolettidev/nats-trail MCP server still maintained?
io.github.solsolettidev/nats-trail is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.solsolettidev/nats-trail MCP server under?
io.github.solsolettidev/nats-trail declares the Apache-2.0 licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.
What did VerifyMCP test on the io.github.solsolettidev/nats-trail MCP server?
VerifyMCP ran 16 checks on io.github.solsolettidev/nats-trail, covering Malware scan, Known CVEs, Install scripts, Dependency health and 12 more. Endpoint Security and Transport & Reachability do not apply to an npm package, so they were not tested. The score does not measure everything, and the scoring documentation lists what it leaves out.