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📊 Intel view 📋 Audit JSON 🔄 Changelog
22
💰 Paid API

Market-Calendar-Api

market-calendar-api.onrender.com · market-calendar-api.onrender.com

Returns the next VIX futures and options expiration dates (Wednesday rule, holiday-adjusted).

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Trust score
22/100
grade F · 3 of 9 criteria apply
Uptime
not graded
catalogue listing · no agent card to probe
Observed inflow · 30d
not yet measured
wallet declared · scan pending
Invocations · 7d
0
no calls observed
Listing drift · 7d
changed
2 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

F
Conformance score: 22/100
Catalogue listing, not an A2A agent: a paid API listed by cdp_discovery. Scored on the 3 criteria that apply (9 of 40 points, scaled to 100); the A2A card criteria do not apply.
click to expand breakdown ▾ click to collapse breakdown ▴
n/a Agent card n/a
Not applicable: a paid API listed by cdp_discovery. The host serves no A2A agent card at /.well-known/agent-card.json, so the card criteria are not scored.
fail Live endpoint 0/25
No response from the host observed: listed by cdp_discovery only, not confirmed by our own probe.
n/a Protocol version n/a
Not applicable: no A2A agent card served.
n/a JWS signature n/a
Not applicable: no A2A agent card served.
n/a Uptime track record n/a
Not applicable: our probes looked for an A2A agent card, which this host does not serve. That says nothing about the API's availability, so it is not graded.
n/a Skill declaration n/a
Not applicable: no A2A agent card served.
partial Verified Identity 5/10
Provider declared: market-calendar-api.onrender.com (https://market-calendar-api.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
n/a Security declaration n/a
Not applicable: no A2A agent card served.
⚠ Listing drift detected. This catalogue entry changed within the last 7 days; the history keeps each version.

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.

Listing history

2 snapshots drifted 1× Every change to the catalogue entry
Agent card snapshots
Captured Hash Snapshot
2026-10-20 13:09:33 current 8d111cb51da4… view →
2026-10-20 01:38:07 d16b7676e23e… view →
Uptime
not graded
catalogue listing · no agent card to probe
Response
—
last direct probe
Skills
0
declared
Streaming
—
SSE-capable

Endpoints

Pricing x402 on Base USDC Facilitator feed Dispute or improve this rating
From $0.0011 per call
Endpoint Price Currency
https://market-calendar-api.onrender.com/v1/auctions 0.0013 USDC
https://market-calendar-api.onrender.com/v1/banking-holidays 0.0014 USDC
https://market-calendar-api.onrender.com/v1/is-banking-day 0.0014 USDC
https://market-calendar-api.onrender.com/v1/meetings 0.0012 USDC
https://market-calendar-api.onrender.com/v1/next-auction 0.0013 USDC
https://market-calendar-api.onrender.com/v1/next-meeting 0.0012 USDC
https://market-calendar-api.onrender.com/v1/next-release 0.0011 USDC
https://market-calendar-api.onrender.com/v1/opex 0.01 USDC
https://market-calendar-api.onrender.com/v1/opex-calendar 0.01 USDC
https://market-calendar-api.onrender.com/v1/rebalance 0.002 USDC
https://market-calendar-api.onrender.com/v1/releases 0.0011 USDC
https://market-calendar-api.onrender.com/v1/vix-expiry 0.01 USDC
Try it ↗ Opens the operator's playground / docs in a new tab.
Settlement wallet: 0xc577c27d10767abfc10d867b443577fe296e7d23 on Base · basescan ↗
Listed by facilitators Coinbase CDP · 12
Observed on-chain inflow verified on-chain
Last 7d
$0.07
17 transfers · synced 2026-10-20
USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the wallet. Inflow to a wallet, not proof that every transfer was a paid call.
How the last 30 days were settled
$0.07 in the ledger, not classified yet. Each transfer is read once to tell facilitator-settled x402 payments from plain transfers. How we classify
Cross-check: Coinbase's Bazaar reports 13 calls in 30 days to this wallet across 12 listed resources; our ledger observed 17 transfers (0 facilitator-settled) over 22 of 30 scanned days. Different counters; neither is assumed correct.
Payment authenticity evidence confidence How we measure this →
concentrated_payers 3/5

Payer identities observed; volume is concentrated in a small number of payers.

Assessed window
30d
2 active of 21 observed
Inflow assessed
$0.07
17 transactions
Payer identities
available
1 evidence caveat
short_observation_window — Fewer than three active days observed — too little history to characterise a pattern.
Checks run: daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap, payer_uniqueness, payer_concentration, payer_recurrence, payer_payee_overlap. Derived from agent_revenue_daily, agents.payment_wallet, agent_payment_transactions. Measured 2026-10-21.
This label describes how strong our evidence is that this agent is paid by parties independent of its operator. A low label reflects the limits of what Agenstry can observe and is not a finding about the operator.
Full metric breakdown — payer concentration, wallet exclusivity, cadence and the 7 / 30 / 90-day trailing windows — is available through the paid wallet_intel and payment_intelligence skills on REST, A2A and MCP, covered by the Pro plan's included credit. API docs →
Agent cardhttps://market-calendar-api.onrender.com
Providerhttps://market-calendar-api.onrender.com/
Docshttps://market-calendar-api.onrender.com
Discovered via
agentic_market recrawl_paid cdp_discovery

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-20 01:51:25 404 — —

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Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/market-calendar-api.onrender.com.svg)](https://agenstry.com/agents/market-calendar-api.onrender.com)
[![Verified Business](https://agenstry.com/badge/market-calendar-api.onrender.com/identity.svg)](https://agenstry.com/agents/market-calendar-api.onrender.com)
[![Uptime](https://agenstry.com/badge/market-calendar-api.onrender.com/uptime.svg)](https://agenstry.com/agents/market-calendar-api.onrender.com)
[![A2A version](https://agenstry.com/badge/market-calendar-api.onrender.com/protocol.svg)](https://agenstry.com/agents/market-calendar-api.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 
{
  "_source": "cdp_discovery",
  "resource_count": 12,
  "sample": "https://market-calendar-api.onrender.com/v1/vix-expiry"
}