65
💰 Paid API
finance
Kronos Quant Signal API
kronos.seshat.markets
· kronos.seshat.markets
Kronos publishes cached multi-timeframe forecasts across crypto and commodities. 22 paid x402 endpoints on Solana + Base mainnet.
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kronos.seshat.markets 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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Our probe of this card is currently failing
Last probe error:
schema invalid: 2 validation errors for AgentCard
name
Field required [type=missing, input_value={'description': 'Multi-as...6-09-05T20:40:09.979Z'}}, input_type=dict]
Fo
Last attempt: 2026-09-08 16:39
Last success: 2026-09-08
Status: 200
Trust score
34/100
grade F · 9 criteria
Uptime
0.0%
5 direct probes · 30d
Observed inflow · 30d
—
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
0 snapshots tracked
Owner
unverified
claim this listing →
Dispute or improve this rating
F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾
click to collapse breakdown ▴
F
Conformance score: 34/100
F-grade: card is reachable but fails most operational signals.
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
15/25
Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.
How to earn +10 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"` 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).
fail
Uptime track record
0/15
0/5 probes succeeded (0% uptime).
How to earn +15 points
Stabilise uptime
We probe every agent on a tiered schedule and grade the last 30 days. Sustained 99 %+ uptime over 20+ conclusive probes scores full points. Probes you refuse us (HTTP 429/403, a WAF challenge, robots.txt) no longer count against you either way, so what is left is genuine unavailability — usually a transient 5xx on cold start.
Docs →
fail
Skill declaration
0/10
No skills declared in card. Hard to route to.
How to earn +10 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: kronos.seshat.markets (https://kronos.seshat.markets). 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 recordedNothing 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.
Uptime
0.0%
5 direct probes · 30d
Response
164ms
last direct probe
Skills
0
declared
Streaming
—
SSE-capable
Endpoints
From $0.0010 per call
This agent accepts x402 payments but did not publish a per-endpoint price map.
Try it ↗
Opens the operator's playground / docs in a new tab.
| Agent card | https://kronos.seshat.markets/.well-known/agent-card.json |
| Provider | https://kronos.seshat.markets |
| Docs | https://kronos.seshat.markets |
Discovered via
x402_list
registry
Health · last 5 probes
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Markdown / HTML snippets
[](https://agenstry.com/agents/kronos.seshat.markets) [](https://agenstry.com/agents/kronos.seshat.markets) [](https://agenstry.com/agents/kronos.seshat.markets) [](https://agenstry.com/agents/kronos.seshat.markets)
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
{
"_source": "x402_list",
"slug": "kronos-quant-signal-api",
"endpoint_count": 6,
"attribution": "Data: x402-list.com (CC BY 4.0)"
}