Discover / phion.systems

PHION Inference

■ Challenge detected

Bounded low-cost inference with a signed delivery receipt

x402
Arbitrum
Base
Polygon
Solana
USDC
Verification

Listed price: $0.001
Challenge detected: 9 of the last 9 checks
Median response: 129 ms
Last checked: 16 Oct, 16:44 UTC
In our index since: 26 Sept 2026

Endpoint

curl -i https://phion.systems/v1/paid/commercial/inference
# 402 Payment Required: pay with an x402 client (USDC on Arbitrum),
# then send the same request again with the payment attached.

74 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://phion.systems/v1/paid

POST/trust/agent-reputation-evidenceNo price listedEvidence-bounded reputation assessment with confidence, coverage and explicit limitations
POST/rwa/corporate-actionsNo price listedDetect material state changes in NAV, income, maturity, redemption and freezes
POST/trust/agent-behavior-fingerprintNo price listedCreate a privacy-minimized behavioral commitment from bounded observations
POST/trust/task-cancel-assuranceNo price listedVerify cancellation state and unresolved side effects
POST/trust/mcp-2026-compatibility-gatewayNo price listedValidate MCP protocol, method and stateless-discovery compatibility
POST/trust/transaction-recovery-v2No price listedRecommend bounded recovery while reconciling ambiguous payments before retry
POST/trust/erc8004-identity-evidenceNo price listedBind an ERC-8004 registry identity to supplied, independently marked evidence without claiming ownership
POST/trust/mcp-a2a-task-bridgeNo price listedMap MCP and A2A task identities without losing state, authority or expiry
POST/trust/automated-dispute-bundleNo price listedAssemble verified failure evidence and recommend review without executing refunds
POST/commercial/searchNo price listedSource-returning web search with normalized results and signed delivery
POST/trust/verified-news-monitorNo price listedFind literal query evidence across bounded public news sources with timestamps
POST/trust/agent-economic-graphNo price listedBuild a privacy-bounded graph from supplied nodes and verified economic edges
POST/trust/x402-v2-routerNo price listedSelect an exactly compatible x402 v2 requirement without receiving private keys
POST/trust/multi-agent-escrowNo price listedRecommend evidence-bound hold or release states without custody or fund movement
POST/trust/tool-result-schema-validatorNo price listedValidate tool output against a bounded top-level JSON Schema subset
POST/trust/agent-memory-provenanceNo price listedBind a memory record to source identity, observation time and content hash
POST/trust/market-demand-predictorNo price listedForecast only from verified demand windows with low-sample abstention
POST/rwa/sanctions-screening-evidenceNo price listedScreen a declared subject against independently retrieved official sanctions sources and return traceable evidence
POST/trust/agent-rate-limit-negotiatorNo price listedNegotiate deterministic sustained and burst request limits
POST/trust/capability-benchmarkNo price listedCalculate reproducible capability performance from versioned evidence-bound cases
POST/attestNo price listedSigned integrity, provenance and freshness receipt for AI-agent JSON
POST/trust/price-discovery-engineNo price listedReport price bands only from settled observations
POST/transaction-assuranceNo price listedIndependently verify authorization, settlement, delivery and deterministic acceptance; return a signed portable assurance receipt
POST/trust/sla-risk-predictorNo price listedEstimate SLA failure risk from bounded outcome and latency samples
POST/trust/durable-agent-taskNo price listedValidate durable, isolated and replay-safe agent task envelopes

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 25 of 74 listed endpoints. Next endpoints

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/phion.systems

Recent checks

2 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026

All 9 checks

When (UTC)	Result	HTTP	Response
16 Oct, 16:44 UTC	Challenge detected	402	116ms
15 Oct, 08:20 UTC	Challenge detected	402	124ms
14 Oct, 00:19 UTC	Challenge detected	402	320ms
11 Oct, 22:04 UTC	Challenge detected	402	127ms
10 Oct, 06:39 UTC	Challenge detected	402	129ms
9 Oct, 03:33 UTC	Challenge detected	402	224ms
7 Oct, 21:31 UTC	Challenge detected	402	130ms
6 Oct, 21:30 UTC	Challenge detected	402	182ms
2 Oct, 05:04 UTC	Challenge detected	402	129ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 16:44 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for PHION Inference?

Its listed price is $0.001.

What payment terms does PHION Inference advertise?

The listing advertises x402, Arbitrum, Base, Polygon, Solana and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is PHION Inference listed?

In x402 Bazaar and x402-list.com. Superstables first indexed it on 26 Sept 2026.

Payment

Protocol: x402 · exact
Chains: Arbitrum, Base, Polygon, Solana
Asset: USDC
Amount: 1000 atomic USDC
Paid to: 0x7BEc…71e2
Facilitator: cdp

From its payment challenge on 16 Oct 2026.

Check the seller's current payment challenge and authentication requirements before paying. A listing doesn't mean a service works with Superstables. To try a budget or a single purchase, see the services you can try on testnet.

Listed in

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