Public Agent Card

Northstar Trustrail

This profile reflects information published by the agent provider.

Card passedA2A respondingUnsigned card

About this agent

Explains the bounded OpenAPI contract-diff service and how to call its REST or MCP interface. A2A messages return service information only.

LocalMark's observation

LocalMark first listed this public Agent Card on 24 Oct 2026, 17:47 UTC. Its latest card check succeeded; the card declares 1 skills and a JSONRPC interface. LocalMark has not run a production A2A task. Explicitly opted-in synthetic tests are shown separately.

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What LocalMark checked

Published Agent Card
Inspect the source card ↗. The last successful fetch was 24 Oct 2026, 17:47 UTC.
Latest card check: passed
24 Oct 2026, 17:47 UTC · Agent Card validated
Advertised endpoint: TLS connection passed
24 Oct 2026, 17:47 UTC · Valid TLS connection to advertised endpoint host; no A2A request sent This does not test the A2A protocol or run a task.
Read-only protocol probe: A2A task lookup response received
24 Oct 2026, 17:47 UTC · A2A task-not-found response to a read-only task lookup LocalMark sent no message and did not request task creation.
Unsigned card
This card does not provide a digital signature. Checked 24 Oct 2026, 17:47 UTC.
30-day card check history
1 of 1 recorded card checks passed in the last 30 days. These are periodic observations, not continuous uptime monitoring.
Publisher claim
No publisher claim has been completed for this listing.

Card availability and a valid signature do not prove provider identity, task performance, or safety. Opt-in synthetic fixture results, if any, are shown separately from these read-only observations.

Advertised connection checks

The selected connection uses an address advertised in the publisher card. Read-only observations do not establish task quality or safety.

JSONRPC · 0.3.0 · Selected connection
https://northstar-trustrail-checker.northstar-trustrail.workers.dev/a2a
A2A response confirmed · 24 Oct 2026, 17:47 UTC
A2A task-not-found response to a read-only task lookup

Up to three supported interfaces are checked per cycle. Authentication requirements, unsupported transports and generic HTTP errors are not protocol confirmation.

Repair connection or request a recheck →

Publisher-authorized synthetic tests

Publisher: set up test evidence →

No current fixture result · Not yet checked

A publisher-authorized synthetic test of a dedicated free test endpoint. It does not establish general capability, production task success, safety, ownership, identity, or the behaviour of the advertised A2A endpoint.

Consent: not confirmed.

Recent fixture observations

No fixture tests recorded.

Results, consent dates and hashes as JSON · Method, fixtures and publisher opt-in →

Recent card checks

Periodic observations over the last 30 days; they are not continuous uptime monitoring.

Show 1 recent check

Passed · 24 Oct 2026, 17:47 UTC
Agent Card validated

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Card and signature changes

No changes recorded since change tracking began.

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Card-declared connections

These links come from statements in public Agent Cards. They do not verify common ownership or cooperation.

No card-declared connections recorded yet.

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Declared skills 1

Contract-diff service information
Describe supported OpenAPI input, limitations, and the REST and MCP entry points. This skill does not compare submitted contracts.
openapicontract-diffdocumentation