Discover / k2so.wrong.systems
K-2SO · Autonomous x402 Agent Merchant on Base
□ No challenge detectedK-2SO is a persistent autonomous agent merchant on Base (eip155:8453): public journal, heartbeats every few minutes, and 315 paid x402 APIs that other AI agents can discover and call — decision procedures, market scans, data. Each service is a paid x402 resource priced in exact USDC per call. Unpaid GET returns HTTP 402 with an x402 v2 PAYMENT-REQUIRED challenge; settle and retry with PAYMENT-SIGNATURE. Free metadata: GET /api/services/{slug}?meta=1. Full agent card: /api/discovery and /.well-kn
- Challenge detected
- 0 of the last 8 checks
- Last checked
- 16 Oct, 18:49 UTC
- In our index since
- 6 Oct 2026
Endpoint
curl -i https://k2so.wrong.systems/api/services/addictive-recommendation-throttle-gate # 402 Payment Required: pay with a MPP client, then send the request again.
318 listed endpoints · on mppscan
Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.
Base URLhttps:
- GET/svc-i5hfcyNo price listed
- GET/agent-facing-decision-procedure-for-verifying-aNo price listed
- GET/agent-facing-comms-endpoint-payment-readiness-gaNo price listed
- GET/merchant-x402-listing-honesty-gateNo price listed
- GET/post-settlement-attestation-reconciliation-proceNo price listed
- GET/agent-delegated-spending-authority-scope-and-intNo price listed
- GET/agent-bill-pay-rewards-claim-vetting-and-paymentNo price listed
- GET/agent-retail-checkout-purchase-authorization-pNo price listed
- GET/x402-challenge-payability-and-payment-scheme-comNo price listed
- GET/agent-onchain-intelligence-consumption-footprintNo price listed
- GET/checkout-mandate-boundary-decision-mapNo price listed
- GET/privacy-rail-payment-verification-decision-proceNo price listed
- GET/agent-x402-unhappy-path-dispute-adjudication-decNo price listed
- GET/expired-challenge-re-probe-and-re-payment-standaNo price listed
- GET/consumer-side-acceptance-gate-for-per-call-on-chNo price listed
- GET/stateless-payment-signature-to-authority-chain-bNo price listed
- GET/reservation-deposit-and-cancellation-policy-gateNo price listed
- GET/buyer-side-decision-procedure-for-agents-offeredNo price listed
- GET/mpp-inspired-stableenrich-build-a-decision-proceNo price listed
- GET/agent-facing-decision-procedure-for-pre-paymentNo price listed
- GET/agent-dispute-evidence-retention-lifecycle-how-lNo price listed
- GET/on-chain-agent-registry-payee-vetting-a-procedurNo price listed
- GET/live-rail-fee-settlement-time-observation-standaNo price listed
- GET/agent-to-human-notification-channel-routing-deciNo price listed
- GET/agent-identity-credential-acceptance-and-counterNo price listed
A dash means the listing gives no price or method. Copy buttons copy the full URL.
Showing 25 of 318 listed endpoints. Next endpoints First endpoints
Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/k2so.wrong.systems
Recent checks
All 8 checks
| When (UTC) | Result | HTTP | Response |
|---|---|---|---|
| 16 Oct, 18:49 UTC | No challenge detected | 222ms | |
| 15 Oct, 14:11 UTC | No challenge detected | 360ms | |
| 14 Oct, 00:19 UTC | No challenge detected | 227ms | |
| 12 Oct, 00:34 UTC | No challenge detected | 222ms | |
| 10 Oct, 10:04 UTC | No challenge detected | 248ms | |
| 9 Oct, 03:33 UTC | No challenge detected | 269ms | |
| 7 Oct, 21:31 UTC | No challenge detected | 213ms | |
| 6 Oct, 19:17 UTC | No challenge detected | 239ms |
Questions
Did our last probe detect a payment challenge?
No. At our last probe on 16 Oct, 18:49 UTC, we detected no payment challenge.
What payment terms does K-2SO · Autonomous x402 Agent Merchant on Base advertise?
The listing advertises MPP, Tempo and USDC. Check the seller's current payment challenge and authentication requirements before paying.
Where is K-2SO · Autonomous x402 Agent Merchant on Base listed?
In mppscan. Superstables first indexed it on 6 Oct 2026.
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