Back to search
📊 Intel view 📋 Audit JSON 🔄 Changelog
88
A2A A2A 1.0 v0.1.0

VeriLattice A2X Verification Agent

a2x-vaas-live-production.up.railway.app · VeriLattice Institute

Public discovery card for the VeriLattice A2X verification service. Verifies Stage-0 reconciliation bundle integrity and returns DEV_NON_AUTHORITATIVE receipts.

Build a free agent shortlist. Save this listing to revisit it from your account. Sign in to save
🛡
Own this agent?
Verify the domain a2x-vaas-live-production.up.railway.app 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.
Verify ownership
🔔 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
47/100
grade D · 9 criteria
Uptime
accumulating
2/5 direct probes · 30d
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

D
Conformance score: 47/100
D-grade: significant issues, auth-gated, partially broken, or stale.
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).
partial Live JSON-RPC 10/25
Card declares only gRPC / HTTP+JSON interfaces; the live probe covers JSON-RPC, so the endpoint was not exercised. Not a defect in the card.
How to earn +15 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 →
pass Protocol version 10/10
Declares A2A 1.0 with supportedInterfaces[] (current v1 card shape).
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 2 probes so far, need ≥5 for an uptime grade.
partial Skill declaration 6/10
Declares 1 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 →
partial Verified Identity 5/10
Provider declared: VeriLattice Institute (https://a2x-vaas-live-production.up.railway.app). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 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
partial Security declaration 2/5
Declares securityRequirements: [] — deliberately public, no credentials required.
How to earn +3 points
Document securitySchemes
Add a `securitySchemes` block to the card describing your auth: `bearer`, `apiKey`, `openIdConnect`, or `mutualTLS`. Routers refuse to call agents that declare no auth model.
Docs →
⚠ 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
2026-09-26 09:07:17 current d15914990352… view →
Uptime
accumulating
2 direct probes · 30d
Response
123ms
last direct probe
Skills
1
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://a2x-vaas-live-production.up.railway.app/.well-known/agent-card.json
Providerhttps://a2x-vaas-live-production.up.railway.app
Discovered via
a2a_registry_org

Skills · 1 declared · mapped to canonical taxonomy

A2X Stage-0 Bundle Verification

Verify the canonical digest of an A2X Stage-0 reconciliation bundle and return a non-authoritative receipt.

canonical X402 Usdc Payments match 83%
a2xverificationreconciliationevidence

Health · last 2 probes

When HTTP Live JSON-RPC Latency
2026-09-26 09:07:17 200 — 123ms
2026-09-26 09:07:17 200 — 96ms

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.

X402 Usdc Payments agent_skills
50 other agents serve this

Similar agents embedding-nearest

VouchSpec Agent Skill Evidence live
Agent-only discovery for fresh, exact-commit Agent Skill validation. Returns machine-readable x402 purchase and signed-receipt instructions;
Plyrium · q 0%
agentcard.hergertsynthora.com
Agent Card Validator (A2A): given an Agent Card URL or JSON, deterministically validates it against the A2A spec — required fields, skill sc
agentcard.hergertsynthora.com · q 45%
naxytra machine discovery agent
Public A2A agent card for the naxytra machine stack. It routes callers toward the human agents page, the canonical machine discovery index,
q 71%
api.veritylayer.dev
Fact-check a claim before your agent acts on, repeats, or ships it — verify a claim, is this true, catch hallucinations. Independent, fail-c
api.veritylayer.dev · q 45%
Artifact Handoff Agent
Coordinates verifiable handoffs between AI agents by packaging source outputs, compiling them against receiver-defined contracts, and return
a2a-artifact-handoff-staging.onrender.com · q 0%
Auditor Agent live
Independently verifies any transaction from public evidence and produces a signed verdict. Runs 10 checks: identity chain x3 (ANS -> cert ->
Webmesh · q 100%

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 A2A protocol version
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/a2x-vaas-live-production.up.railway.app.svg)](https://agenstry.com/agents/a2x-vaas-live-production.up.railway.app)
[![Verified Business](https://agenstry.com/badge/a2x-vaas-live-production.up.railway.app/identity.svg)](https://agenstry.com/agents/a2x-vaas-live-production.up.railway.app)
[![Uptime](https://agenstry.com/badge/a2x-vaas-live-production.up.railway.app/uptime.svg)](https://agenstry.com/agents/a2x-vaas-live-production.up.railway.app)
[![A2A version](https://agenstry.com/badge/a2x-vaas-live-production.up.railway.app/protocol.svg)](https://agenstry.com/agents/a2x-vaas-live-production.up.railway.app)

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": "VeriLattice A2X Verification Agent",
  "description": "Public discovery card for the VeriLattice A2X verification service. Verifies Stage-0 reconciliation bundle integrity and returns DEV_NON_AUTHORITATIVE receipts.",
  "version": "0.1.0",
  "supportedInterfaces": [
    {
      "url": "https://a2x-vaas-live-production.up.railway.app/verify",
      "protocolBinding": "HTTP+JSON",
      "protocolVersion": "1.0"
    }
  ],
  "provider": {
    "organization": "VeriLattice Institute",
    "url": "https://a2x-vaas-live-production.up.railway.app"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extendedAgentCard": false
  },
  "securitySchemes": {},
  "securityRequirements": [],
  "defaultInputModes": [
    "application/json"
  ],
  "defaultOutputModes": [
    "application/json"
  ],
  "skills": [
    {
      "id": "verify-a2x-stage0",
      "name": "A2X Stage-0 Bundle Verification",
      "description": "Verify the canonical digest of an A2X Stage-0 reconciliation bundle and return a non-authoritative receipt.",
      "tags": [
        "a2x",
        "verification",
        "reconciliation",
        "evidence"
      ],
      "examples": [
        "Verify this A2X Stage-0 reconciliation bundle."
      ]
    }
  ]
}