x402 census · x402-echo-service.onrender.com · 62ed43aaad0c · JSON

POST /hash

unprobed

Compute cryptographic digests of a string. POST {"input":"...","algorithms":["sha256"]} and receive one hex digest per requested algorithm. Supports sha256, sha512 and keccak256. Deterministic, no storage, no upstream calls.

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

Field Value

URL https://x402-echo-service.onrender.com/hash

Method POST

Price $0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base)

payTo 0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE

Seller x402-echo-service.onrender.com

Catalogs cdp (row updated 2026-09-24)

Listed since (lower bound) 2026-09-24 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-24

CDP quality counters 4 calls and 4 unique payers in 30 days, last call 2026-09-24 (catalog-reported, not verified on chain)

Category (keyword rule) crypto-data

Templated path no

x402Version in catalog 2

Service name / tags Hash Digest · hash, sha256, keccak, digest, utility

Unpaid probe (census of )

Field

Value

Probe

not 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)

Field Value

Distinct payers 1

Payments 3

USDC volume $0.003

Median payment $0.001

First / last payment 2026-09-24 / 2026-09-25

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "algorithms": [
    "sha256"
   ],
   "input": "hello world"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "digests": {
    "sha256": "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"
   },
   "input_bytes": 11
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://x402-echo-service.onrender.com/hash' -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/62ed43aaad0c/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"62ed43aaad0c"} 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 x402-echo-service.onrender.com.