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Intel view Audit JSON Changelog
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💰 Paid API blockchain

preflight.madebydevx.com

preflight.madebydevx.com · preflight.madebydevx.com

Simulate a Base transaction before you pay gas: dry-run call, gas estimate, and fee preview for agents. POST JSON. 0.50 USDC on Base via Coinbase CDP x402. By MadeByDevX.

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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
$18.50
89 tx · on-chain
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 agentic.market. Scored on the 3 criteria that apply (9 of 40 points, scaled to 100); the A2A card criteria do not apply.
Show breakdown Hide breakdown
fail Live endpoint 0/25
No response from the host observed: listed by agentic.market only, not confirmed by our own probe.
partial Verified Identity 5/10
Provider declared: preflight.madebydevx.com (https://preflight.madebydevx.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 Agent card · Protocol version · JWS signature · Uptime track record · Skill declaration · Security declaration

Activity

last 24h · 0 invocations No personal data recorded

No activity in the last 7 days.

Listing history

1 snapshot
Snapshots
Agent card snapshots
Captured Hash Snapshot
2026-11-06 18:58:09 current 1ce70dc393b7… view →

Endpoints

Pricing x402 on Base USDC Facilitator feed
From $0.5000 per call
Endpoint Price Currency
https://preflight.madebydevx.com/v1/preflight
Base
 0.5 USDC
Settlement wallet: 0xb3cddccee6b150c8effd55b961afc0ecefe7f247 on Base · basescan ↗
Listed by facilitators Coinbase CDP · 1
Observed on-chain inflow verified on-chain
Last 7d
$0.82
49 transfers · synced 2026-11-07
Last 30d
$18.50
89 transfers · synced 2026-11-07
USDC on Base. Inflow to a wallet, not proof that every transfer was a paid call.
How it was settled and checked
$7.18 in the ledger, not classified yet.
Cross-check: Coinbase's Bazaar reports 81 calls in 30 days across 15 resources; we observed 90 transfers (0 facilitator-settled) over 29 of 30 scanned days. Neither counter is assumed correct.
Reproducible via eth_getLogs on USDC Transfer events to the wallet. How we classify
Rolling 30-day inflow ~ flat (+0.0%)
2026-11-07 2026-11-08
Peak: $18.50
Agent cardhttps://preflight.madebydevx.com
Providerhttps://preflight.madebydevx.com
Docshttps://preflight.madebydevx.com
Discovered via
agentic market

Health · last 0 probes

Probe log
When HTTP Live JSON-RPC Latency
No direct probes in the last 30 days.

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Embed a badge

Updates itself and links back here.

Agenstry grade Uptime 
[![Agenstry grade](https://agenstry.com/badge/preflight.madebydevx.com.svg)](https://agenstry.com/agents/preflight.madebydevx.com)
[![Verified Business](https://agenstry.com/badge/preflight.madebydevx.com/identity.svg)](https://agenstry.com/agents/preflight.madebydevx.com)
[![Uptime](https://agenstry.com/badge/preflight.madebydevx.com/uptime.svg)](https://agenstry.com/agents/preflight.madebydevx.com)
[![A2A version](https://agenstry.com/badge/preflight.madebydevx.com/protocol.svg)](https://agenstry.com/agents/preflight.madebydevx.com)

Audit evidence

JSON for vendor reviews. Signed copy verifies against our JWKS.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON 
{
  "_source": "agentic.market",
  "service": {
    "id": "preflight-madebydevx-com",
    "name": "preflight.madebydevx.com",
    "description": "",
    "domain": "preflight.madebydevx.com",
    "provider": "preflight.madebydevx.com",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://preflight.madebydevx.com/v1/preflight",
        "description": "Preflight any Base transaction before you sign it: simulates the call against latest state (success or decoded revert reason), estimates gas with a safe limit, and prices the full fee (L2 execution + L1 data upper bound) in ETH and USD, plus the ETH balance needed. 0.50 USDC via x402 on Base.",
        "pricing": {
          "amount": "0.5",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "data",
            "type": "string",
            "description": "",
            "example": "0x70a08231000000000000000000000000b3cddccee6b150c8effd55b961afc0ecefe7f247",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "from",
            "type": "string",
            "description": "",
            "example": "0xB3cDDccEe6B150c8efFD55B961afc0Ecefe7f247",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "to",
            "type": "string",
            "description": "",
            "example": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "value",
            "type": "string",
            "description": "",
            "example": "0",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "DevX Base Tx Preflight",
        "tags": [
          "simulation",
          "gas",
          "transactions",
          "fees",
          "base"
        ],
        "quality": {
          "l30DaysTotalCalls": "1",
          "l30DaysUniquePayers": "1"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.5",
      "maxAmount": "0.5",
      "avgCostPerTransaction": "0.5",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "DevX Base Tx Preflight",
    "tags": [
      "simulation",
      "gas",
      "transactions",
      "fees",
      "base"
    ],
    "iconUrl": ""
  }
}