x402 census · api.marketintelligenceapi.com · 465e76251792 · JSON

POST /api/v1/credits/buy/:usd

live

Prepaid API credits and API key for clients that cannot sign an x402 payment per call (most MCP clients): one payment buys credit ($5, $20 = $22 credit, $50 = $60) and returns an API key. Send it as X-API-Key on any paid route or MCP tool; each call costs its x402 price and failed calls are refunded. With your key in X-API-Key it tops that key up.

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.marketintelligenceapi.com/api/v1/credits/buy/:usd

Method POST

Price $5.00 USDC = 5000000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts eip155:137, eip155:42161, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, eip155:480

payTo 0x48d5A78d480B4C32dE319C2aEF69e682Dc304615

Seller api.marketintelligenceapi.com

Catalogs cdp (row updated 2026-10-06)

Listed since (lower bound) 2026-10-06 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-10-06

CDP quality counters 1 calls and 1 unique payers in 30 days, last call 2026-10-06 (catalog-reported, not verified on chain)

Category (keyword rule) gift-cards/commerce

Templated path yes: contains :param or {param}; probed as listed

x402Version in catalog 2

Service name / tags Market Intelligence API · credits, prepaid, api-key, mcp, ai-agents

Unpaid probe (census of 2026-10-22)

Field Value

Probed at 2026-10-22T00:19:47.139Z

HEAD 402

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":"5000000","payTo":"0x48d5A78d480B4C32dE319C2aEF69e682Dc304615","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":60,"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 / none

Latency 294 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

Distinct payers 2

Payments 5

USDC volume $0.03

Median payment $0.005

First / last payment 2026-09-17 / 2026-09-30

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x48d5A78d480B4C32dE319C2aEF69e682Dc304615 (contract: EIP7702StatelessDeleGator)

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {},
  "bodyType": "json",
  "method": "POST",
  "pathParams": {
   "usd": "5"
  },
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "apiKey": "mi_...",
   "creditUsd": 22,
   "status": "active once the payment settles"
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://api.marketintelligenceapi.com/api/v1/credits/buy/:usd' -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/465e76251792/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"465e76251792"} 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 api.marketintelligenceapi.com.