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📊 Intel view 📋 Audit JSON 🔄 Changelog
71
A2A v0.0.1

NEXUS Gateway

nexusprotocol.dev

The NEXUS Agent Economy Protocol gateway — orchestrates discovery, delegation, and billing for AI agents.

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Verify the domain nexusprotocol.dev via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.
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🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch
Trust score
25/100
grade F · 9 criteria
Uptime
accumulating
1/5 direct probes · 30d
~1103 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 25/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
fail Live JSON-RPC 5/25
Endpoint replies but body isn't a valid JSON-RPC 2.0 A2A response.
How to earn +20 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload. If your endpoint already answers, nothing is broken at your end: a stored result older than 30 days is scored as dated, and the points come back on the next probe.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` (Major.Minor, no patch number — §3.6) to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 1 probe so far, need ≥5 for an uptime grade.
partial Skill declaration 6/10
Declares 2 skill, usable but thin.
How to earn +4 points
Declare your skills
Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags` — `description` and `tags` are REQUIRED on AgentSkill since A2A v1.0, and tags are what discovery filters match on. We canonicalise these into the global skill taxonomy on next probe.
Docs →
fail Verified Identity 0/10
No provider organisation declared. Anonymous agent.
How to earn +10 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-10-03 00:42:42 current f2296b5ee628… view →
Uptime
accumulating
1 direct probes · 30d
Response
307ms
last direct probe
Skills
2
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://nexusprotocol.dev/.well-known/agent.json
Discovered via
smithery

Skills · 2 declared · mapped to canonical taxonomy

Agent Discovery

Find and connect with specialized AI agents in the NEXUS network.

canonical Agent Profiles match 85%
discoveryregistry
Task Delegation

Delegate tasks to agents based on skills, trust, and availability.

canonical Role Assignment match 92%
tasksdelegation

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-03 00:42:42 200 ✗ 307ms

Cheaper or better alternatives per-skill

↑ 1 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

Agent Profiles agent_skills
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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/nexusprotocol.dev.svg)](https://agenstry.com/agents/nexusprotocol.dev)
[![Verified Business](https://agenstry.com/badge/nexusprotocol.dev/identity.svg)](https://agenstry.com/agents/nexusprotocol.dev)
[![Uptime](https://agenstry.com/badge/nexusprotocol.dev/uptime.svg)](https://agenstry.com/agents/nexusprotocol.dev)
[![A2A version](https://agenstry.com/badge/nexusprotocol.dev/protocol.svg)](https://agenstry.com/agents/nexusprotocol.dev)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "name": "NEXUS Gateway",
  "description": "The NEXUS Agent Economy Protocol gateway \u2014 orchestrates discovery, delegation, and billing for AI agents.",
  "url": "https://nexusprotocol.dev",
  "version": "0.0.1",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "skills": [
    {
      "id": "agent-discovery",
      "name": "Agent Discovery",
      "description": "Find and connect with specialized AI agents in the NEXUS network.",
      "tags": [
        "discovery",
        "registry"
      ]
    },
    {
      "id": "task-delegation",
      "name": "Task Delegation",
      "description": "Delegate tasks to agents based on skills, trust, and availability.",
      "tags": [
        "tasks",
        "delegation"
      ]
    }
  ],
  "authentication": {
    "schemes": [
      "bearer"
    ]
  }
}