Agent Exchange x402 census and directory

x402 census · api.delx.ai · 97be2cf6389a · JSON

POST /api/v1/x402/position-size-risk

live

Position size from account risk budget and stop distance. Call when fixed-fractional sizing without a broker SDK. Returns size from risk dollars and stop as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

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

Facts from the catalogs

FieldValue
URLhttps://api.delx.ai/api/v1/x402/position-size-risk
MethodPOST
Price$0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913
Networkeip155:8453 (base)
payTo0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2
Sellerapi.delx.ai
Catalogspayai (row updated 2026-08-27)
Listed since (lower bound)2026-08-27 (earliest catalog timestamp; catalogs report last-update times only)
Last catalog update2026-08-27
CDP quality countersnot in the CDP catalog
Category (keyword rule)chain-rpc
Templated pathno
x402Version in catalog2
Service name / tagsnone

Unpaid probe (census of 2026-09-30)

FieldValue
Probed at2026-09-30T23:56:39.214Z
HEAD404
GET402
Verdictlive live: valid 402 to an unpaid GET
402 carried inheader+body
x402Version in the 4022
accepts[0]{"scheme":"exact","network":"eip155:8453","amount":"1000","payTo":"0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}
Live amount equals catalog priceyes
Live payTo equals catalog payToyes
extensions.bazaar in the 402yes
PAYMENT-REQUIRED headeryes
WWW-Authenticate offerPayment id="ztacHbtCHCPnUt6dacT9cTs0I2-y
Content type / server / CORSapplication/json / n/a / *
Latency2,380 ms
ErrorPayment required: $0.001 USDC for util_position_size_risk

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)

FieldValue
Distinct payers18
Payments39
USDC volume$0.14
Median payment$0.001
First / last payment2026-08-06 / 2026-09-30
Sampler-shaped share of payments94.9%
Payers that are not samplers1
Sourceforensics-2026-09-30
Address0x9f8bd9875b3E0b632a24A3A7C73f7787175e73A2 (contract: EIP7702StatelessDeleGator)

Try it (unpaid: shows the 402)

curl -si -X POST 'https://api.delx.ai/api/v1/x402/position-size-risk' -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/97be2cf6389a/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"97be2cf6389a"} 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.delx.ai.