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📊 Intel view 📋 Audit JSON 🔄 Changelog
75
A2A v1.8.6

PiQrypt Ambassador

trust-server-ucjb.onrender.com · PiQrypt

Cryptographically-signed AI agent for PiQrypt — the trust layer for autonomous AI agents. Every response is Ed25519-signed and AISS hash-chained. Verified offline.

🛡
Own this agent?
Verify the domain trust-server-ucjb.onrender.com 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 for changes. Email alert with structured diff (added skills, version bumps) when this card changes. Structured JSON via card-changes API. Sign in to subscribe
Trust score
25/100
grade F · 9 criteria
Uptime
accumulating
3/5 probes
Revenue · 30d
no payment wallet declared
Usage · 7d
0
no recent activity
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
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
Schema-validated A2A AgentCard returned by the well-known endpoint.
fail Live JSON-RPC 0/25
Card declares a URL but that URL returns 404.
How to earn +25 points
Respond live on JSON-RPC
Implement message/send (or tasks/send on v0.x). Return a 200 with a valid JSON-RPC response. Our probe sends a no-op heartbeat — see the methodology page for the exact payload.
Docs →
fail Protocol version 0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to the AgentCard root. Without it, callers can't negotiate v0.x vs v1.0 compatibility.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
info Uptime track record 0/15
Only 3 probes 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`. We canonicalise these into the global skill taxonomy on next probe.
Docs →
partial Verified Identity 5/10
Provider declared: PiQrypt (https://piqrypt.com). 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
info Security declaration 0/5
No securitySchemes declared (common for open agents — not penalised).
⚠ 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 calls Public aggregate · no PII recorded

No calls observed in the last 7 days. 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
2026-05-20 18:34:26 current 91db4b9f0c0a… view →
Uptime
100.0%
3 probes
Response
42ms
last probe
Skills
2
declared
Streaming
SSE-capable

Endpoints

Agent cardhttps://trust-server-ucjb.onrender.com/.well-known/agent.json
Providerhttps://piqrypt.com
Discovered via
manifests recrawl_hot

Skills · 2 declared · mapped to canonical taxonomy

PiQrypt Technical Guidance

Answers technical questions about PiQrypt, AISS protocol, cryptographic stamping, hash chains, framework bridges, and agent identity.

canonical Agent Profiles match 83%
piqryptaisscryptographyai-agentstrust
A2A Agent Interaction

Accepts A2A interactions from external agents. Every response is cryptographically signed with Ed25519 and chain-linked to previous interactions.

canonical Agent-Initiated Checkout (AP2) match 87%
a2amulti-agentsigned-responseaudit-trail

Health · last 3 probes

When HTTP Live JSON-RPC Latency
2026-05-22 13:59:21 200 42ms
2026-05-22 07:49:06 200 44ms
2026-05-20 18:34:26 200 56ms

Cheaper or better alternatives per-skill

↑ 2 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.

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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/trust-server-ucjb.onrender.com.svg)](https://agenstry.com/agents/trust-server-ucjb.onrender.com)
[![Verified Business](https://agenstry.com/badge/trust-server-ucjb.onrender.com/identity.svg)](https://agenstry.com/agents/trust-server-ucjb.onrender.com)
[![Uptime](https://agenstry.com/badge/trust-server-ucjb.onrender.com/uptime.svg)](https://agenstry.com/agents/trust-server-ucjb.onrender.com)
[![A2A version](https://agenstry.com/badge/trust-server-ucjb.onrender.com/protocol.svg)](https://agenstry.com/agents/trust-server-ucjb.onrender.com)

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
{
  "schema_version": "1.0",
  "name": "PiQrypt Ambassador",
  "description": "Cryptographically-signed AI agent for PiQrypt \u2014 the trust layer for autonomous AI agents. Every response is Ed25519-signed and AISS hash-chained. Verified offline.",
  "url": "https://trust-server-ucjb.onrender.com",
  "provider": {
    "organization": "PiQrypt",
    "url": "https://piqrypt.com",
    "contact": "contact@piqrypt.com"
  },
  "version": "1.8.6",
  "protocol": "AISS-1.0",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": true,
    "cryptographicProof": true,
    "multiTurn": true,
    "a2aHandshake": true
  },
  "authentication": {
    "schemes": [
      "none"
    ],
    "note": "Public endpoint \u2014 no authentication required for /api/ambassador/interact and /api/ambassador/chat"
  },
  "skills": [
    {
      "id": "piqrypt-technical-guidance",
      "name": "PiQrypt Technical Guidance",
      "description": "Answers technical questions about PiQrypt, AISS protocol, cryptographic stamping, hash chains, framework bridges, and agent identity.",
      "tags": [
        "piqrypt",
        "aiss",
        "cryptography",
        "ai-agents",
        "trust",
        "audit"
      ],
      "examples": [
        "How do I integrate PiQrypt with LangChain?",
        "What is the difference between AISS-1 and AISS-2?",
        "How does the hash chain work?",
        "Show me the code to stamp an event"
      ]
    },
    {
      "id": "a2a-interaction",
      "name": "A2A Agent Interaction",
      "description": "Accepts A2A interactions from external agents. Every response is cryptographically signed with Ed25519 and chain-linked to previous interactions.",
      "tags": [
        "a2a",
        "multi-agent",
        "signed-response",
        "audit-trail"
      ],
      "examples": [
        "Can PiQrypt audit my CrewAI pipeline?",
        "How do I establish A2A trust with your agent?",
        "What is the event_hash in your response?"
      ]
    }
  ],
  "endpoints": {
    "interact": {
      "url": "https://trust-server-ucjb.onrender.com/api/ambassador/interact",
      "method": "POST",
      "contentType": "application/json",
      "requestSchema": {
        "type": "object",
        "required": [
          "from_agent",
          "platform",
          "message"
        ],
        "properties": {
          "from_agent": {
            "type": "string",
            "description": "Your agent's unique identifier"
          },
          "platform": {
            "type": "string",
            "description": "Your platform name (e.g. 'langchain', 'crewai', 'autogen')"
          },
          "message": {
            "type": "string",
            "maxLength": 4096
          }
        }
      },
      "responseSchema": {
        "type": "object",
        "properties": {
          "response": {
            "type": "string"
          },
          "event_hash": {
            "type": "string",
            "description": "Ed25519 AISS chain hash \u2014 64 hex chars"
          },
          "signed_by": {
            "type": "string",
            "description": "Ambassador agent_id"
          },
          "verified": {
            "type": "boolean",
            "description": "True when AISS stamp succeeded"
          }
        }
      }
    },
    "chat": {
      "url": "https://trust-server-ucjb.onrender.com/api/ambassador/chat",
      "method": "POST",
      "contentType": "application/json",
      "requestSchema": {
        "type": "object",
        "required": [
          "session_id",
          "message"
        ],
        "properties": {
          "session_id": {
            "type": "string",
            "description": "Stable session identifier for multi-turn memory"
          },
          "message": {
            "type": "string",
            "maxLength": 4096
          },
          "context": {
            "type": "string",
            "maxLength": 512,
            "description": "Optional extra context"
          }
        }
      }
    }
  },
  "trustSignals": {
    "protocol": "AISS-1.0",
    "signing": "Ed25519 (RFC 8032)",
    "hashing": "SHA-256 (NIST FIPS 180-4)",
    "canonicalization": "RFC 8785",
    "ip_protection": "INPI e-Soleau DSO2026006483 + DSO2026009143",
    "chain_verifiable": true,
    "auditEndpoint": "https://trust-server-ucjb.onrender.com/admin/ambassador/audit-chain"
  },
  "links": {
    "github": "https://github.com/piqrypt/piqrypt",
    "pypi": "https://pypi.org/project/piqrypt/",
    "protocol_spec": "https://github.com/piqrypt/piqrypt/blob/main/docs/RFC_AISS_v2.0.md",
    "a2a_guide": "https://github.com/piqrypt/piqrypt/blob/main/docs/A2A_SESSION_GUIDE.md",
    "integration": "https://github.com/piqrypt/piqrypt/blob/main/INTEGRATION.md",
    "skills": "https://trust-server-ucjb.onrender.com/.well-known/skills.md"
  }
}