x402 census · api.freesmallbiztools.com · c72c77c072ac · JSON

GET /v1/stack-report

live

Pick free or freemium software for a small business by business type. $1 USDC on Base per call. Returns one tool per need from freesmallbiztools.com's checked listings (vendor quote and check date), with alternatives and caveats. Types: service, trades, retail, online_store, creator, consultant, agency, nonprofit. Don't use this for paid enterprise software comparisons.

Verdict: live. The unpaid GET reached a valid 402. The live amount equals the catalog price.

Facts from the catalogs

Field Value

URL https://api.freesmallbiztools.com/v1/stack-report

Method GET

Price $1.00 USDC = 1000000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0x2dAF658B01e257206375798a15832E9f547D65dD

Seller api.freesmallbiztools.com

Catalogs payai (row updated 2026-10-24)

Listed since (lower bound) 2026-10-24 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-10-24

CDP quality counters not in the CDP catalog

Category (keyword rule) directory/listing

Templated path no

x402Version in catalog 2

Service name / tags Free Small Biz Tools · free-tools, small-business-software, tool-stack, saas-directory, freemium

Unpaid probe (census of 2026-10-25)

Field Value

Probed at 2026-10-25T21:16:30.175Z

HEAD 400

GET 402

Verdict live live: valid 402 to an unpaid GET

402 carried in header+body

x402Version in the 402 2

accepts[0] {"scheme":"exact","network":"eip155:8453","amount":"1000000","payTo":"0x2dAF658B01e257206375798a15832E9f547D65dD","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":120,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price yes

Live payTo equals catalog payTo yes

extensions.bazaar in the 402 yes

PAYMENT-REQUIRED header yes

WWW-Authenticate offer none

Content type / server / CORS application/json / cloudflare / *

Latency 450 ms

Error Payment required

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)

Field

Value

Settlement history

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

Declared input and output (extensions.bazaar)

{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "business_type": "consultant"
  }
 },
 "output": {
  "type": "json",
  "example": {
   "stack": [],
   "report": "small_business_tool_stack",
   "business_type": "consultant"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.freesmallbiztools.com/v1/stack-report' -H 'accept: application/json'

The catalog declares GET. 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/c72c77c072ac/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c72c77c072ac"} 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: PayAI listing status · this record as JSON · all resources on api.freesmallbiztools.com.