Agent Exchange x402 census and directory

x402 census · zeroworker-mcp-preflight-api.zeroworker-lab.workers.dev · d925cb84c564 · JSON

POST /v1/analyze

unprobed

Preflight an unknown public MCP server before an AI agent connects to or trusts it. Returns a client-enforceable ALLOW/BLOCK/UNKNOWN known-vulnerability gate for caller-confirmed package versions plus non-invoking MCP-native static analysis for tool/prompt poisoning, hidden Unicode, risky schemas and sensitive capabilities, prompt/resource catalog metadata, observable authorization posture, OSV m…

Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.

Facts from the catalogs

FieldValue
URLhttps://zeroworker-mcp-preflight-api.zeroworker-lab.workers.dev/v1/analyze
MethodPOST
Price$0.005 USDC = 5000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0xad277cf8B5D9fa5008D06cBdBE349F5DF3c0Cc8f
Sellerzeroworker-mcp-preflight-api.zeroworker-lab.workers.dev
Catalogscdp (row updated 2026-09-30)
Listed since (lower bound)2026-09-30 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-09-30
CDP quality counters6 calls and 1 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain)
Category (keyword rule)enrichment/people
Templated pathno
x402Version in catalog2
Service name / tagsZeroWorker MCP Preflight API · mcp, security, ai-agents, preflight, osv

Unpaid probe (census of )

FieldValue
Probenot probed in this build

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

FieldValue
Settlement historyunresolved: payTo not seen in the payer forensics (180 wallets' outbound history) or the Blockscout sample

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "components": [
    {
     "ecosystem": "npm",
     "name": "@modelcontextprotocol/sdk",
     "version": "1.25.3"
    }
   ],
   "url": "https://target.example/mcp"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example_truncated": true,
  "chars": 917
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://zeroworker-mcp-preflight-api.zeroworker-lab.workers.dev/v1/analyze' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.

Paid checks (x402, USDC on Base)

GET https://bazaar.agentexchange.work/r/d925cb84c564/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"d925cb84c564"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.

Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on zeroworker-mcp-preflight-api.zeroworker-lab.workers.dev.