x402 census · myc-staging.crescadia.com · b843d1ae4213 · JSON
GET /v1/paid/opportunities/:notice_id/delta
unprobed
Detect material state changes with prior/current comparison, evidence, and provenance, applied to SAM.gov federal contract opportunities. Identify economically material deadline moves, solicitation amendments, attachment changes, set-aside, NAICS, status, and award changes. Returns an immutable before/after delta with materiality, reason codes, and provenance for procurement and capture agents.
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://myc-staging.crescadia.com/v1/paid/opportunities/:notice_id/delta |
| Method | GET |
| Price | $0.01 USDC = 10000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0xc54cAF5be3660c0558700B7a64103904eC9c861C |
| Seller | myc-staging.crescadia.com |
| Catalogs | cdp (row updated 2026-09-26) |
| Listed since (lower bound) | 2026-09-26 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-26 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-26 (catalog-reported, not verified on chain) |
| Category (keyword rule) | other/unknown |
| Templated path | yes: contains :param or {param}; probed as listed |
| x402Version in catalog | 2 |
| Service name / tags | MYC Federal Contract Changes · sam-gov, federal-contracts, contract-changes, procurement, solicitation-amendments |
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 |
|---|---|
| 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": {
"method": "GET",
"pathParams": {
"notice_id": "f223cf190db146198784a98f6ad124ea"
},
"type": "http"
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 671
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://myc-staging.crescadia.com/v1/paid/opportunities/:notice_id/delta' -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/b843d1ae4213/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"b843d1ae4213"} 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 myc-staging.crescadia.com.