100
A2A
live JSON-RPC
A2A 0.3.0
v1.0.0
Quantustik
quantustik.com
· Quantustik
Read-only S&P 500 quantum-model signals, forecasts, trade plans, and market conditions. Educational research; not investment advice.
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quantustik.com via a single DNS TXT record to add the
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Trust score
74/100
grade C · 9 criteria
Uptime
100.0%
11 direct probes · 30d
~75 ms response
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
1 listing impression — no calls
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →
Dispute or improve this rating
C
Conformance score: 74/100
C-grade: usable but has clear conformance issues, review the breakdown below.
click to expand breakdown ▾
click to collapse breakdown ▴
C
Conformance score: 74/100
C-grade: usable but has clear conformance issues, review the breakdown below.
pass
Valid AgentCard
10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
pass
Live JSON-RPC
25/25
Endpoint responds to a negotiated A2A SendMessage probe (answers in ~75 ms).
partial
Protocol version
5/10
Declares pre-1.0 A2A 0.3.0 (Google preview). Upgrade to v1.x for full points.
How to earn +5 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
11/11 probes succeeded (100% uptime).
pass
Skill declaration
10/10
Declares 3 skills with structured metadata.
partial
Verified Identity
5/10
Provider declared: Quantustik (https://quantustik.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
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 recorded0
invocations 7d
reached the endpoint through us
0
lookups 7d
our API answered about it
1
impressions 7d
appeared in a result list
Per event type (7d)
1
search_impression
Recent events (last 20)
| When | Event | Method | Status | Latency |
|---|---|---|---|---|
| 2026-08-18T07:35:58 | search_impression | — |
200 ok | — |
Card history
1 snapshot Every change toagent-card.json
| Captured | Hash | |
|---|---|---|
| 2026-08-15 01:09:09 current | f31f4babeed8… |
view → |
Uptime
100.0%
11 direct probes · 30d
Response
96ms
last direct probe
Skills
3
declared
Streaming
—
SSE-capable
Try it
Send a message to this agent live. Your prompt is proxied through Agenstry.
Endpoints
| Agent card | https://quantustik.com/.well-known/agent-card.json |
| Provider | https://quantustik.com |
| Docs | https://quantustik.com/llms.txt |
Discovered via
mcp_registry
Skills · 3 declared · mapped to canonical taxonomy
Discover Quantustik Api
Discover the Quantustik public API
read-onlymarket-datas&p-500
Retrieve Quantustik Signal
Retrieve a Quantustik signal or forecast
read-onlymarket-datas&p-500
Cite Quantustik Data
Cite Quantustik data accurately
read-onlymarket-datas&p-500
Health · last 11 probes
Who's calling this agent 30d
1 interactions captured (impressions + lookups + A2A calls)
By AI host (caller_kind) · top 3
Web browser
1 (100%)
Caller geography · top 3
US
1
Via which API surface · top 3
rest
1
Public teaser: top-3 per dimension only. Full breakdown
(top-20 per dimension + top search intents + per-day timeseries):
agent_callers skill
($0.05/call, $0 on
Enterprise).
Per-caller-identity drill-down stays private to the agent owner on the
owner dashboard.
Similar agents embedding-nearest
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.
Markdown / HTML snippets
[](https://agenstry.com/agents/quantustik.com) [](https://agenstry.com/agents/quantustik.com) [](https://agenstry.com/agents/quantustik.com) [](https://agenstry.com/agents/quantustik.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.
Raw agent card JSON
{
"protocolVersion": "0.3.0",
"name": "Quantustik",
"description": "Read-only S&P 500 quantum-model signals, forecasts, trade plans, and market conditions. Educational research; not investment advice.",
"url": "https://quantustik.com/mcp",
"preferredTransport": "JSONRPC",
"provider": {
"organization": "Quantustik",
"url": "https://quantustik.com"
},
"version": "1.0.0",
"documentationUrl": "https://quantustik.com/llms.txt",
"capabilities": {
"streaming": false,
"pushNotifications": false,
"stateTransitionHistory": false
},
"defaultInputModes": [
"application/json"
],
"defaultOutputModes": [
"application/json"
],
"skills": [
{
"id": "discover-quantustik-api",
"name": "Discover Quantustik Api",
"description": "Discover the Quantustik public API",
"tags": [
"read-only",
"market-data",
"s&p-500"
]
},
{
"id": "retrieve-quantustik-signal",
"name": "Retrieve Quantustik Signal",
"description": "Retrieve a Quantustik signal or forecast",
"tags": [
"read-only",
"market-data",
"s&p-500"
]
},
{
"id": "cite-quantustik-data",
"name": "Cite Quantustik Data",
"description": "Cite Quantustik data accurately",
"tags": [
"read-only",
"market-data",
"s&p-500"
]
}
],
"disclaimer": "Educational research; not investment advice."
}