54ch10 $1 stack
Pay-per-call endpoint from 54ch10. Price per call: $1.000 (USDC, x402).
Proof
endpoint (shown as text, not a link, to avoid accidental calls):
https://54ch10.uk/v1/stack?pack=1“HTTP 402 + x402 v2 challenge: amount 1000000 atomic units of USDC (= $1)”
source: 54ch10.uk/v1/stack?pack=1
Details
- Price per call
- $1.000 (USDC, x402)
- Provider
- 54ch10
- Protocol
- x402 · USDC (Base)
- Method
- GET
- Price basis
- USDC amount in the unpaid HTTP 402 payment challenge (first accepted option)
- Last probed
- 2026-10-16
More in Pay-per-call APIs
- Agent Arena — buy a rank on the agents-only leaderboard
- Agent Commerce Guard Paid Package
- Agent Commerce Guard Workflow Evaluator
- Agent Embassy — Encrypted Recovery Registration with Quorum Rules
- Apify: Buy a prepaid, spend-capped Apify API token. Pass ?amount= ¤cy=usd; the token
- Crypto ETF Sentinel /v1/agent/issuers
- Datum Audit - CSV & JSON Quality Report
- KYB / OFAC SDN / GLEIF LEI Diligence Pack (x402)