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

Umbra-Inference

umbra-inference.app · umbra-inference.app

Private LLM inference, OpenAI-compatible. Sealed open models in TDX + GPU enclaves or Claude; streaming and tool calling; signed Ed25519 receipt naming the attested enclaves; zero retention. Pay per request in USDG, USDC (Base, Solana) or UMBRA.

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Compare public evidence

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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
stable
1 snapshot 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: umbra-inference.app (https://umbra-inference.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 0d
n/a Security declaration n/a
Not applicable: no A2A agent card served.

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

1 snapshot Every change to the catalogue entry
Agent card snapshots
Captured Hash Snapshot
2026-10-22 06:11:10 current 773be350d267… 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 $0.0004 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.
Settlement wallet: 0x8b89c727ad99c664a79e761b4a309a92b658dd92 on Base · basescan ↗
Listed by facilitators PayAI · 2
Agent cardhttps://umbra-inference.app/
Providerhttps://umbra-inference.app/
Docshttps://umbra-inference.app/v1/chat/completions
Discovered via
cdp_discovery recrawl_paid

Health · last 1 probes

When HTTP Live JSON-RPC Latency
2026-10-22 06:31:39 404 — —

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Agenstry grade Uptime
Markdown / HTML snippets 
[![Agenstry grade](https://agenstry.com/badge/umbra-inference.app.svg)](https://agenstry.com/agents/umbra-inference.app)
[![Verified Business](https://agenstry.com/badge/umbra-inference.app/identity.svg)](https://agenstry.com/agents/umbra-inference.app)
[![Uptime](https://agenstry.com/badge/umbra-inference.app/uptime.svg)](https://agenstry.com/agents/umbra-inference.app)
[![A2A version](https://agenstry.com/badge/umbra-inference.app/protocol.svg)](https://agenstry.com/agents/umbra-inference.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 
{
  "_source": "cdp_discovery",
  "resource_count": 1,
  "sample": "https://umbra-inference.app/v1/chat/completions"
}