the402 endpoint detail

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agent.massive.com vX disclosures

https://agent.massive.com/stocks/filings/8-K/vX/disclosures

answers 402

SEC 8-K filing disclosure categorization. A single 8-K filing can produce multiple rows when it covers multiple disclosure types — each row represents one tagged disclosure within the filing, classified into primary, secondary, and tertiary categories with a supporting text excerpt. The full classification list is available at /stocks/taxonomies/vX/disclosures. Can't find what you're looking for?

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0x525f6dDcE9aF7a7179D7696aaBfCd5FCd15a21e6
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
193 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:12:05.129Z (2h ago)
Category
data

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fagent.massive.com%2Fstocks%2Ffilings%2F8-K%2FvX%2Fdisclosures"