x402 census · 402utils.com · 20f6f1a716e7 · JSON
POST /v1/hash
unprobed
Compute cryptographic hashes / checksums of a string or of raw bytes (base64). Returns lowercase hex for each requested algorithm: sha256 (default), sha512, sha1, md5. SHA via native Web Crypto; md5 and sha1 are offered for legacy interop only and flagged — not for security. POST so the input never lands in a URL/log. Verification/checksums only, not a hash cracker.
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://402utils.com/v1/hash |
| Method | POST |
| Price | $0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291 |
| Seller | 402utils.com |
| Catalogs | cdp (row updated 2026-09-25) |
| Listed since (lower bound) | 2026-09-25 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-25 |
| CDP quality counters | 7 calls and 5 unique payers in 30 days, last call 2026-09-25 (catalog-reported, not verified on chain) |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | none |
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 | 43 |
| Payments | 69 |
| USDC volume | $0.17 |
| Median payment | $0.002 |
| First / last payment | 2026-07-05 / 2026-09-30 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0xc55A2D530b53CBaD1001e4AfD4720B7E71f9C291 (contract: EIP7702Proxy) |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"algorithms": [
"sha256",
"md5"
],
"text": "hello world"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"bytes": 11,
"hashes": {
"md5": "5eb63bbbe01eeed093cb22bb8f5acdc3",
"sha256": "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"
},
"warnings": [
"md5 is a legacy checksum — not collision-resistant; do not use it for security."
]
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://402utils.com/v1/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/20f6f1a716e7/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"20f6f1a716e7"} 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 402utils.com.