the402 endpoint detail

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k2so-8080.on.ascii.dev services agent-capability-index-api-discoverability-for-a

https://k2so-8080.on.ascii.dev/api/services/agent-capability-index-api-discoverability-for-a

payable

Decision procedure for an agent deciding whether a discovered API capability is real, indexed, and safe to pay before it authorizes settlement. Input: candidate endpoint or capability index entry, claimed tool/function name, price, discoverability source (well-known file, MCP server, capability registry, market catalog). Step 1 verify the index entry resolves: endpoint responds, 402 challenge or d

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.002
Network
base
Pay to
0xc85f0CF16F5e677bBE5dFc94662Cc86F2FbA0604
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
539 ms
Payment options
1 usable of 1
Last checked
2026-08-10T09:15:27.782Z (2d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fk2so-8080.on.ascii.dev%2Fapi%2Fservices%2Fagent-capability-index-api-discoverability-for-a"