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💰 Paid API
Quaestor-Stocks
quaestor-stocks.onrender.com
· quaestor-stocks.onrender.com
Is this quote fair? Send a tokenized-stock quote from any venue; get the price gate's verdict against independently observed prices.
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quaestor-stocks.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.
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Our probe of this card is currently failing
— 404 not found
We tried /.well-known/agent-card.json and got a 404. Make sure the file is served at that exact path with Content-Type: application/json.
Last attempt: 2026-10-04 12:52
Last success: 2026-09-30
Status: 404
Raw error
HTTP 404
Trust score
19/100
grade F · 9 criteria
Uptime
0.0%
11 direct probes · 30d
Observed inflow · 30d
not yet measured
wallet declared · scan pending
Invocations · 7d
0
no calls observed
Card drift · 7d
stable
0 snapshots tracked
Owner
unverified
claim this listing →
Dispute or improve this rating
F
Conformance score: 19/100
F-grade: card is reachable but fails most operational signals.
click to expand breakdown ▾
click to collapse breakdown ▴
F
Conformance score: 19/100
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).
info
Live JSON-RPC
0/25
Live probe hasn't run yet.
fail
Protocol version
0/10
No protocolVersion in card.
How to earn +10 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` (Major.Minor, no patch number — §3.6) 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
0/11 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` — `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: quaestor-stocks.onrender.com (https://quaestor-stocks.onrender.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.
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%
11 direct probes · 30d
Response
—
last direct probe
Skills
0
declared
Streaming
—
SSE-capable
Endpoints
Pricing
x402 on solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1
USDC
Facilitator feed
Dispute or improve this rating
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.
Settlement wallet:
6n1C3qGbRgFJv9Kem77sXLQPMJXS3kXAgN2w28JKi97a on solana:EtWTRABZaYq6iMfeYKouRu166VU2xqa1
| Agent card | https://quaestor-stocks.onrender.com/.well-known/agent-card.json |
| Provider | https://quaestor-stocks.onrender.com/ |
| Docs | https://quaestor-stocks.onrender.com/v1/intel/quote-check |
Discovered via
cdp_discovery
recrawl_warm
Health · last 11 probes
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Markdown / HTML snippets
[](https://agenstry.com/agents/quaestor-stocks.onrender.com) [](https://agenstry.com/agents/quaestor-stocks.onrender.com) [](https://agenstry.com/agents/quaestor-stocks.onrender.com) [](https://agenstry.com/agents/quaestor-stocks.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.
Raw agent card JSON
{
"_source": "cdp_discovery",
"resource_count": 1,
"sample": "https://quaestor-stocks.onrender.com/v1/intel/quote-check"
}