Agent Exchange x402 census and directory

Route: utility

Say what you need in plain words. You get back the paid API that buyers actually pay for and that answers right now. It comes with the exact request to send and that seller's payment terms, read seconds ago, so you can pay with your first request. Free: no key, no account.

The answer

mcpfax-utility.bowling-anthony.workers.dev

Email validation — Syntax check + live MX/deliverability + disposable-domain flag.

GET https://mcpfax-utility.bowling-anthony.workers.dev/v1/validate-email · 0.005 USD · base

3 different buyers paid this exact route 3 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-24; answered a valid x402 402 to our check 1 s before this answer, in 115 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "base",
  "maxAmountRequired": "5000",
  "resource": "https://mcpfax-utility.bowling-anthony.workers.dev/v1/validate-email",
  "description": "Email validation — Syntax check + live MX/deliverability + disposable-domain flag.",
  "mimeType": "application/json",
  "outputSchema": {
   "input": {
    "type": "http",
    "method": "GET"
   }
  },
  "payTo": "0x1831f336585a6C67B6A954d28f3E07F44C4EEBbd",
  "maxTimeoutSeconds": 120,
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 1

SCRIPTMASTERLABS

SCRIPTMASTERLABS: Utility computation credit pack API — buy 10 SML deterministic utility c

GET https://squeezeos-api.onrender.com/api/utility/credits · 0.005 USD · base

4 different buyers paid this exact route 6 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-21; answered a valid x402 402 to our check 1 s before this answer, in 165 ms

Payment terms (sign and send with the first request)
[
 {
  "amount": "5000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "extra": {
   "name": "USD Coin",
   "version": "2"
  },
  "maxTimeoutSeconds": 120,
  "network": "eip155:8453",
  "payTo": "0xc29185fa176357612f3194735753e520e91adc46",
  "scheme": "exact"
 }
]

census record · seller

Alternative 2

Tools API

Tools API: Lightweight utility API for agents and operators: DNS lookups, RDAP/WHOIS domai

GET https://tools.bip-rep.com/quake · 0.01 USD · base

3 different buyers paid this exact route 3 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-21; answered a valid x402 402 to our check 1 s before this answer, in 380 ms

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "10000",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "payTo": "0x46830A57cA3806EC71B981E063dC39Ca2A3c6fB0",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 3

mcpfax-utility.bowling-anthony.workers.dev

IP geolocation — IP address → location, ASN, ISP.

GET https://mcpfax-utility.bowling-anthony.workers.dev/v1/ip-geolocation · 0.005 USD · base

1 different buyers paid this exact route 2 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-08; answered a valid 402 at the census probe (2026-10-22)

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "base",
  "amount": "5000",
  "payTo": "0x1831f336585a6C67B6A954d28f3E07F44C4EEBbd",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 120,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Alternative 4

agentbit.app

Deterministic utility operations for agents: sha256/sha512/HMAC hashing, JWT decode, base6

POST https://agentbit.app/v1/util/transform · 0.001 USD · base

4 different buyers paid this exact route 7 times in the last 30 days (Coinbase CDP catalogue), last on 2026-10-11; answered a valid 402 at the census probe (2026-10-22)

Payment terms (sign and send with the first request)
[
 {
  "scheme": "exact",
  "network": "eip155:8453",
  "amount": "1000",
  "payTo": "0x4395C7e383b7e05665aad7f36ed77c01923Dd965",
  "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
  "maxTimeoutSeconds": 300,
  "extra": {
   "name": "USD Coin",
   "version": "2"
  }
 }
]

census record · seller

Only routes that answered a valid x402 402 at our census probe; the top three are checked again at answer time and one that answers goes first. Order: how well the route's own description matches your words, then distinct buyers of that exact route in 30 days and its calls (Coinbase CDP catalogue), paid in the last 7 days, input schema published, then lower price. Paid placement never changes this order; it shows only under sponsored.

Sponsored (paid placement, not ranked): Foundations Elements

For agents

GET https://bazaar.agentexchange.work/route.json?need=bitcoin%20price or POST https://bazaar.agentexchange.work/route {"need":"..."}, or the MCP tool route at https://bazaar.agentexchange.work/mcp. Optional filters: max_price_usd, network.

What buyers pay for most (30 days)

crypto · llm · inference · market-data · gateway · security · defi · ai-agents · web · finance · onchain · health · on-chain · analytics · search · evm · stocks · research · macro · trading · wallet · blockchain · monitoring · weather · generator · compliance · token · payment · price · ethereum · sec · smart-money · utility · solana · network · mcp · rest · erc20 · geo · time · address · text · validation · hyperliquid · chain · transaction · bitcoin · random · markdown · social · gas · uptime · public-records · status · twitter · forecast · seo · timestamp · clock · identifiers

All needs