x402 census · api.messari.io · c308cd7c0ba7 · JSON

GET /funding/v1/rounds

live

Get paginated crypto funding rounds with investors, stage, and raised amounts.

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.messari.io/funding/v1/rounds

Method GET

Price $0.15 USDC = 150000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, eip155:196

payTo 0x75Ddd3c42eAce13c59EA0CD1141B886A1c70D2A5

Seller api.messari.io

Catalogs cdp (row updated 2026-10-23)

Listed since (lower bound) 2026-10-23 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-10-23

CDP quality counters 4 calls and 2 unique payers in 30 days, last call 2026-10-23 (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 2026-10-22)

Field Value

Probed at 2026-10-22T00:33:52.189Z

HEAD 403

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":"150000","payTo":"0x75Ddd3c42eAce13c59EA0CD1141B886A1c70D2A5","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 216 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 3

Payments 3

USDC volume $0.45

Median payment $0.10

First / last payment 2026-07-02 / 2026-09-17

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x75Ddd3c42eAce13c59EA0CD1141B886A1c70D2A5

Declared input and output (extensions.bazaar)

{
 "input": {
  "method": "GET",
  "queryParams": {
   "announcedAfter": "2025-01-01",
   "announcedBefore": "2025-12-31",
   "fundedEntityId": [
    "project-bitcoin-layer2"
   ],
   "investorId": [
    "investor-001"
   ],
   "isTokenFunded": false,
   "limit": 10,
   "page": 1,
   "raisedAmountMax": 50000000,
   "raisedAmountMin": 1000000,
   "stage": [
    "series-a"
   ],
   "type": [
    "equity"
   ]
  },
  "type": "http"
 },
 "output": {
  "example": {
   "data": [
    {
     "amountRaisedUSD": 12500000,
     "announcementDate": "2025-02-01",
     "fundedEntity": {
      "id": "project-bitcoin-layer2",
      "name": "Example L2 Project"
     },
     "id": "round-001",
     "isTokenFunded": false,
     "stage": "series-a",
     "type": "equity"
    }
   ]
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X GET 'https://api.messari.io/funding/v1/rounds' -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/c308cd7c0ba7/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c308cd7c0ba7"} 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.messari.io.