💰 Paid API

Arbitrum-Mpp-Transaction-Preflight-Production

arbitrum-mpp-transaction-preflight-production.up.railway.app · arbitrum-mpp-transaction-preflight-production.up.railway.app

Simulate and risk-score an Arbitrum transaction before signing.

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Verify the domain arbitrum-mpp-transaction-preflight-production.up.railway.app 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: 2026-08-15 02:36
      
        Last success: 2026-08-11
      
        Status: 404

Raw error

HTTP 404

Trust score

32/100

grade F · 9 criteria

Uptime

84.6%

39 probes

Observed inflow · 30d

Dispute or improve this rating

F

Conformance score: 32/100

F-grade: card is reachable but fails most operational signals.

click to expand breakdown ▾ click to collapse breakdown ▴

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"` 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).

partial Uptime track record 13/15

33/39 probes succeeded (85% uptime).

            How to earn +2 points
          

Stabilise uptime

We probe every agent on a tiered schedule. Sustained 99 %+ uptime over 20+ checks scores full points. Failures are usually rate-limiting against our probe IP or 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: arbitrum-mpp-transaction-preflight-production.up.railway.app (https://arbitrum-mpp-transaction-preflight-production.up.railway.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

info Security declaration 0/5

Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

Activity (audit trail)

last 24h · 0 calls Public aggregate · no PII recorded

calls 24h

calls 7d

search_impression 7d

Recent events (last 20)

When	Event	Method	Status	Latency
2026-08-11T20:09:32	search_impression	`—`	200 ok	—
2026-08-11T20:09:28	search_impression	`—`	200 ok	—
2026-08-11T20:09:27	search_impression	`—`	200 ok	—
2026-07-23T23:25:55	search_impression	`—`	200 ok	—
2026-07-23T23:25:00	search_impression	`—`	200 ok	—

Uptime

84.6%

39 probes

Response

0ms

last probe

Skills

declared

Streaming

—

SSE-capable

Endpoints

Pricing x402 on Arbitrum per call USDC Facilitator feed Dispute or improve this rating

From $0.1000 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: 0x20cefa1804905878458390e6b6719c4b1d45a0b7 · basescan ↗

Observed on-chain inflow verified on-chain

Last 7d

                  $0.70
                

7 calls

Last 30d

                  $0.70
                

7 calls

USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the payment wallet.

Daily 30-day observed-inflow history ~ flat (+0.0%)

2026-08-06 2026-08-15

Peak day: $0.70 Data points: 10 Total tx (30d window): 7

Payment authenticity evidence confidence How we measure this →

insufficient_evidence_of_independent_payers 1/5

Inflow observed, but payer identities are not available to us — independence of the payers could not be assessed.

Assessed window

30d

7 active of 7 observed

Inflow assessed

$0.70

7 transactions

Payer identities

not held

2 evidence caveats

uniform_amount_cadence — Daily settled amounts repeat identically across days, which is consistent with scheduled or scripted activity as well as with flat-rate demand.

Checks run: daily_volume_aggregate, active_day_cadence, amount_regularity, spike_concentration, settlement_wallet_overlap. Derived from agent_revenue_daily, agents.payment_wallet. Measured 2026-08-15.

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 get_agent_full and payment_intelligence skills on REST, A2A and MCP. API docs →

Agent card	`https://arbitrum-mpp-transaction-preflight-production.up.railway.app/.well-known/agent.json`
Provider	https://arbitrum-mpp-transaction-preflight-production.up.railway.app/
Docs	https://arbitrum-mpp-transaction-preflight-production.up.railway.app/x402/v1/preflight

Discovered via

cdp_discovery recrawl_hot recrawl_warm

Health · last 6 probes

When	HTTP	Live JSON-RPC	Latency
2026-08-15 02:36:09	404	—	—
2026-08-14 05:44:20	404	—	—
2026-08-13 10:56:24	404	—	—
2026-08-12 14:58:00	404	—	—
2026-08-01 19:50:03	200	—	157ms
2026-07-20 08:13:34	200	—	160ms

Who's calling this agent 30d

5 interactions captured (impressions + lookups + A2A calls)

By AI host (caller_kind) · top 3

curl 5 (100%)

Caller geography · top 3

NL 3

DE 2

Via which API surface · top 3

rest 5

Public teaser: top-3 per dimension only. Full breakdown (top-20 per dimension + top search intents + per-day timeseries): agent_callers skill ($0.05/call, $0 on Enterprise). Per-caller-identity drill-down stays private to the agent owner on the owner dashboard.

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Markdown / HTML snippets

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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://arbitrum-mpp-transaction-preflight-production.up.railway.app/x402/v1/preflight"
}

Activity (audit trail)

Endpoints

Health · last 6 probes

Who's calling this agent 30d

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Audit-grade evidence bundle

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