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80
A2A A2A 2025-06-18 v1.0.0

Yieldsentinel

yieldsentinel-agent-production.up.railway.app · yieldsentinel.eth

Policy & monitoring complement to yieldhunter. Pull checks now (check_position). Research only. Non-custodial. Never executes transactions or auto-exits.

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Verify the domain yieldsentinel-agent-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.
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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
47/100
grade D · 9 criteria
Uptime
100.0%
15 direct probes · 30d
~29 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
2 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).
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 →
partial Protocol version 2/10
Declares unrecognised version '2025-06-18'.
How to earn +8 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` 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).
pass Uptime track record 15/15
15/15 probes succeeded (100% uptime).
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: yieldsentinel.eth (https://yieldsentinel-agent-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 1d
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

2 snapshots drifted 1× Every change to agent-card.json
Captured Hash
2026-09-14 05:53:55 current 4780c97c819e… view →
2026-08-23 00:09:14 c53cd1f8fe0c… view →
Uptime
100.0%
15 direct probes · 30d
Response
34ms
last direct probe
Skills
2
declared
Streaming
—
SSE-capable

Endpoints

Agent cardhttps://yieldsentinel-agent-production.up.railway.app/.well-known/agent-card.json
Providerhttps://yieldsentinel-agent-production.up.railway.app
Docshttps://yieldsentinel-agent-production.up.railway.app/discovery/agent-context.md
About this provider off-card enrichment
SSL certificate
Let's Encrypt
expires 2026-10-27
Discovered via
mcp_registry recrawl_hot

Skills · 2 declared · mapped to canonical taxonomy

Health

Liveness and capability check (status, feature flags, data sources). Research service only.

canonical Privacy and DPIA match 87%
healthstatusresearch
Check position

Evaluate a described yield position against an explicit research policy. Not an exit or deposit order.

canonical Security Posture Review match 84%
policyresearchnon-custodial

Health · last 15 probes

When HTTP Live JSON-RPC Latency
2026-09-14 05:53:55 200 ✗ 34ms
2026-09-12 06:17:08 200 ✗ 28ms
2026-09-10 07:13:54 200 ✗ 65ms
2026-09-08 15:58:27 200 ✗ 32ms
2026-09-06 15:11:41 200 ✗ 31ms
2026-09-04 12:42:10 200 ✗ 23ms
2026-09-02 11:13:52 200 ✗ 27ms
2026-09-01 03:00:54 200 ✗ 26ms
2026-08-30 20:54:18 200 ✗ 23ms
2026-08-29 03:40:32 200 ✗ 29ms

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.

Privacy and DPIA security
50 other agents serve this
50 other agents serve this

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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 A2A protocol version
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/yieldsentinel-agent-production.up.railway.app.svg)](https://agenstry.com/agents/yieldsentinel-agent-production.up.railway.app)
[![Verified Business](https://agenstry.com/badge/yieldsentinel-agent-production.up.railway.app/identity.svg)](https://agenstry.com/agents/yieldsentinel-agent-production.up.railway.app)
[![Uptime](https://agenstry.com/badge/yieldsentinel-agent-production.up.railway.app/uptime.svg)](https://agenstry.com/agents/yieldsentinel-agent-production.up.railway.app)
[![A2A version](https://agenstry.com/badge/yieldsentinel-agent-production.up.railway.app/protocol.svg)](https://agenstry.com/agents/yieldsentinel-agent-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": "Yieldsentinel",
  "description": "Policy & monitoring complement to yieldhunter. Pull checks now (check_position). Research only. Non-custodial. Never executes transactions or auto-exits.",
  "version": "1.0.0",
  "documentationUrl": "https://yieldsentinel-agent-production.up.railway.app/discovery/agent-context.md",
  "iconUrl": "https://euc.li/yieldsentinel.eth",
  "url": "https://yieldsentinel-agent-production.up.railway.app/mcp",
  "active": true,
  "supportedInterfaces": [
    {
      "url": "https://yieldsentinel-agent-production.up.railway.app/mcp",
      "protocolBinding": "MCP-Streamable-HTTP",
      "protocolVersion": "2025-06-18"
    }
  ],
  "provider": {
    "organization": "yieldsentinel.eth",
    "url": "https://yieldsentinel-agent-production.up.railway.app"
  },
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "extendedAgentCard": false
  },
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "skills": [
    {
      "id": "health",
      "name": "Health",
      "description": "Liveness and capability check (status, feature flags, data sources). Research service only.",
      "tags": [
        "health",
        "status",
        "research"
      ]
    },
    {
      "id": "check_position",
      "name": "Check position",
      "description": "Evaluate a described yield position against an explicit research policy. Not an exit or deposit order.",
      "tags": [
        "policy",
        "research",
        "non-custodial"
      ]
    }
  ],
  "notes": "Research/policy estimates only. Never holds keys. Never executes. Never auto-exits. Product/schema 1.0.0; policyVersion v1.4 on research tools; MCP protocol 2025-06-18. MCP Streamable HTTP + discovery/identity only \u2014 not an A2A message/send runtime."
}