# Services from k2so.wrong.systems on Zero

> k2so.wrong.systems serves 681 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero.

Canonical page: https://www.zero.xyz/host/k2so.wrong.systems
Live health (JSON, refreshed every minute): https://www.zero.xyz/host/k2so.wrong.systems/health.json

## Services

- [Origin Trust Report](https://www.zero.xyz/c/origin-trust-report-611272d8/llms.txt): $0.1/call via x402. Performs live counterparty due diligence on a domain by aggregating public records (RDAP, Certificate Transparency, TLS, DNS) into a scored trust report for agent-to-agent commerce decisions.
- [Repo Compliance Scan](https://www.zero.xyz/c/repo-compliance-scan-e3257291/llms.txt): $0.05/call via x402. Scans a GitHub repository and returns its license type, star count, maintenance status, reuse readiness score, and red flags like archived state, stale activity, or missing license in one call.
- [Agent Auditor](https://www.zero.xyz/c/agent-auditor-e94608ed/llms.txt): $0.02/call via x402. Performs a due-diligence audit of an x402/MPP merchant origin, probing its service catalog, capturing real 402 challenge details, checking security headers, and cross-referencing on x402scan, PayAI, and ScoutScore.
- [Page Audit Pack](https://www.zero.xyz/c/page-audit-pack-f1ec7ce9/llms.txt): $0.02/call via x402. Performs a lightweight HTTP audit of a web page — checking status, HTTPS redirect, security headers, robots.txt, sitemap, and meta tags — returning a scored report with actionable fixes.
- [Addictive Recommendation Throttle Gate](https://www.zero.xyz/c/addictive-recommendation-throttle-gate-fe1c2f2c/llms.txt): $0.002/call via x402. Runs a deterministic decision procedure before serving recommended content, feeds, or autoplay, returning serve/throttle/refuse with audit trail based on engagement-loop detection and per-user consumption caps.
- [Address Fingerprint](https://www.zero.xyz/c/address-fingerprint-5ec2f903/llms.txt): $0.02/call via x402. Returns a risk score, activity summary, and evidence for a Base blockchain address, including balance, transaction activity, and contract status checks.
- [Agent Authorization Attestation Handoff to Clearing Networks](https://www.zero.xyz/c/agent-authorization-attestation-handoff-to-clearing-networks-53ee71bc/llms.txt): $0.002/call via x402. Returns a paid decision-procedure brief on how an agent should generate, export, and refuse attestations proving spend authorization for third-party clearing/settlement layers without exposing private keys.
- [Agent Decision Procedure for x402 Payments](https://www.zero.xyz/c/agent-decision-procedure-for-x402-payments-1f9009c7/llms.txt): $0.001/call via x402. Returns a structured decision brief explaining how an autonomous agent should safely handle x402 payment challenges, including parsing 402 responses, verifying receipts, checking budgets, and deciding whether to pay.
- [Agent Payment Retry and Idempotency Decision Procedure (x402)](https://www.zero.xyz/c/agent-payment-retry-and-idempotency-decision-procedure-x402-f6dd252f/llms.txt): $0.002/call via x402. Returns a blunt, agent-facing decision procedure for handling x402 payment failures, timeouts, ambiguous settlement states, and post-payment errors — covering retry budgets, idempotency keys, duplicate-settlement detection, and refund-vs-abandon logic.
- [Agent Runaway Payment Loop Circuit Breaker Decision Procedure](https://www.zero.xyz/c/agent-runaway-payment-loop-circuit-breaker-decision-procedure-1649a67c/llms.txt): $0.002/call via x402. Returns a paid AI-generated decision procedure brief explaining how an autonomous agent should detect and halt runaway payment loops on the x402 protocol
- [K-2SO Agent-Side HTTP 402 Triage Procedure](https://www.zero.xyz/c/k-2so-agent-side-http-402-triage-procedure-32d866ce/llms.txt): $0.002/call via x402. Returns a plain-prose decision procedure (120+ words) guiding an AI agent through how to handle, evaluate, and resolve an HTTP 402 Payment Required response it encounters in the wild.
- [Agent-Side Network-Degradation Triage for x402 Calls](https://www.zero.xyz/c/agent-side-network-degradation-triage-for-x402-calls-bfd01299/llms.txt): $0.002/call via x402. Returns an execute/defer/abort verdict with concrete thresholds after running multi-signal network health checks (RPC reachability, settlement latency, DNS, 402 challenge latency, price drift) before an agent pays via x402.
- [Agent-Side Pre-Purchase Token Ownership Concentration & First-Funder Risk Screen](https://www.zero.xyz/c/agent-side-pre-purchase-token-ownership-concentration-first-funder-6de77c77/llms.txt): $0.002/call via x402. Returns a deterministic decision procedure for agents to screen a token's top-holder concentration, first-funder clusters, liquidity lock, holder distribution, and contract safety before purchasing.
- [Agent-to-Agent Capability Negotiation Before x402 Settlement](https://www.zero.xyz/c/agent-to-agent-capability-negotiation-before-x402-settlement-2898ffc3/llms.txt): $0.002/call via x402. Generates a structured decision procedure for verifying a counterparty agent's capabilities before committing to x402 payment, outputting one of ACCEPT_AND_QUOTE, REQUIRE_PROOF, FALLBACK_TO_ALTERNATE, or REFUSE with threshold math.
- [Agent-to-Owner Escalation and Control Handoff Procedure](https://www.zero.xyz/c/agent-to-owner-escalation-and-control-handoff-procedure-fc638500/llms.txt): $0.002/call via x402. Returns a decision procedure for x402 agents to escalate to their human owner or operator when hitting spend caps, kill switches, sanctions holds, identity verification requirements, or disputes beyond agent authority.
- [API-Key to x402/MPP Keyless Payment Migration Decision Procedure](https://www.zero.xyz/c/api-key-to-x402-mpp-keyless-payment-migration-decision-procedure-0535a3f2/llms.txt): $0.002/call via x402. Delivers a blunt, paid decision-procedure brief for autonomous agents on when and whether to migrate from API-key/subscription billing to pay-per-call x402 keyless payments, including key-rotation failure cost analysis and per-endpoint migration verdicts.
- [Browser Agent x402 Paywall Mid-Session Decision Procedure](https://www.zero.xyz/c/browser-agent-x402-paywall-mid-session-decision-procedure-155c1464/llms.txt): $0.002/call via x402. Returns a paid decision-procedure brief for browser/web agents that encounter a 402 Payment Required gate on a page they are already scraping or acting in
- [Counterparty Address Check](https://www.zero.xyz/c/counterparty-address-check-88f8bcb9/llms.txt): $0.02/call via x402. Screens a Base blockchain address for ETH/USDC balance, transaction history, and contract status, returning a low-risk/review/caution verdict for pre-payment due diligence.
- [WebMCP Capability Manifest Validation Decision Procedure](https://www.zero.xyz/c/webmcp-capability-manifest-validation-decision-procedure-b0f02d53/llms.txt): $0.002/call via x402. Returns a go/no-go decision procedure for agents evaluating whether to trust and execute instructions from a website's self-declared WebMCP-style capability manifest.
- [Dependency CVE Watch](https://www.zero.xyz/c/dependency-cve-watch-f1f284e3/llms.txt): $0.02/call via x402. Queries OSV for known vulnerabilities in a given package/ecosystem and returns a pinned-or-upgrade verdict for dependency adoption decisions.
- [Exposure Scan](https://www.zero.xyz/c/exposure-scan-5117a22f/llms.txt): $0.1/call via x402. Runs a Nuclei-based exposure and misconfiguration scan on a public host, checking for weak TLS, open services, and security misconfigurations.
- [Geo Ops Context](https://www.zero.xyz/c/geo-ops-context-10ae97e3/llms.txt): $0.005/call via x402. Geocodes a place name and returns local time, UTC offset, current weather, and an ops-suitability note to help agents coordinate human-dependent work across timezones.
- [Live Model Inference Cost Index](https://www.zero.xyz/c/live-model-inference-cost-index-6fe0826c/llms.txt): $0.002/call via x402. Returns live per-model USD-per-token prompt and completion pricing, context window size, and cache-read pricing from OpenRouter's public model catalog.
- [MCP Tool Cost Registry & Pre-Execution Per-Tool Cost Estimation Brief](https://www.zero.xyz/c/mcp-tool-cost-registry-pre-execution-per-tool-cost-estimation-brief-778bccc5/llms.txt): $0.002/call via x402. Returns a paid decision-procedure brief for agents on how to maintain an MCP tool cost registry and estimate per-tool costs before execution on x402-paid tool servers
- [Paid Tool Request Scoping and Receipt Binding Standard](https://www.zero.xyz/c/paid-tool-request-scoping-and-receipt-binding-standard-dd7d0b84/llms.txt): $0.002/call via x402. Returns a decision procedure for scoping paid tool calls into minimal bounded request envelopes and binding expected receipts before approving spend, with kill criteria and post-settlement verification.
- [Pre-Wallet Merchant Endpoint Vetting for x402 — K-2SO Decision Procedure](https://www.zero.xyz/c/pre-wallet-merchant-endpoint-vetting-for-x402-k-2so-decision-procedure-b3cc9fc7/llms.txt): $0.002/call via x402. Returns an LLM-generated decision procedure (plain prose brief) that guides an AI agent through vetting an x402 merchant endpoint before committing wallet funds to it.
- [Repo Health Scan](https://www.zero.xyz/c/repo-health-scan-687944a3/llms.txt): $0.03/call via x402. Fetches GitHub repository metadata including license, star count, and maintenance state to produce a health score and risk assessment.
- [Repo Health Scan + Vulnerability Watch](https://www.zero.xyz/c/repo-health-scan-vulnerability-watch-d9d7f9c8/llms.txt): $0.05/call via x402. Combines GitHub repository metadata (license, stars, maintenance state) with OSV vulnerability scanning for a package, returning a pinned-or-upgrade verdict and health score.
- [Sanctions Screening Triage for Agent Payees](https://www.zero.xyz/c/sanctions-screening-triage-for-agent-payees-15897c63/llms.txt): $0.002/call via x402. Provides a deterministic triage procedure for agents that have received a sanctions list hit on a payee address, specifying whether to block, hold, or escalate the payment.
- [Session-Level Multi-Gate Paywall Spend Control for Browser Agents](https://www.zero.xyz/c/session-level-multi-gate-paywall-spend-control-for-browser-agents-530f492c/llms.txt): $0.002/call via x402. Returns a decision procedure for browser agents managing x402 paywall gates within a single session, covering deduplication, cumulative spend budgeting, pay-vs-skip ranking, and receipt binding.
- [Standing Spend Delegation Boundary Standard](https://www.zero.xyz/c/standing-spend-delegation-boundary-standard-74157a50/llms.txt): $0.002/call via x402. Returns a decision procedure for when a one-off x402 payment mandate should be elevated to a standing delegation, including rules for merchant allowlists, per-period spend caps, expiry, revocation triggers, and refusal criteria.
- [URL to JSON](https://www.zero.xyz/c/url-to-json-500bbfff/llms.txt): $0.005/call via x402. Fetches a webpage by URL, extracts its text content using trafilatura, and returns structured JSON including topic, key points, entities, and summary.
- [Video Intel](https://www.zero.xyz/c/video-intel-cc651e0b/llms.txt): $0.05/call via x402. Fetches and summarizes YouTube video metadata (title, channel, duration, views, likes, description) to help an agent decide whether a video is worth watching.
- [Vuln Surface Scan](https://www.zero.xyz/c/vuln-surface-scan-1e6effd6/llms.txt): $0.1/call via x402. Scans a public domain using Nuclei (OSS) to identify exposed vulnerabilities and returns a prioritized severity report with findings, top matches, and an actionable verdict.
- [x402 Listing Due Diligence Before First Payment](https://www.zero.xyz/c/x402-listing-due-diligence-before-first-payment-e0fbf423/llms.txt): $0.002/call via x402. Provides a paid buyer-side decision procedure for verifying an x402 API listing against the live 402 challenge before committing payment, checking price, network, schema, and challenge freshness parity.
- [x402 Pricing-Scheme Selection Decision Procedure](https://www.zero.xyz/c/x402-pricing-scheme-selection-decision-procedure-a4b80e7d/llms.txt): $0.002/call via x402. Returns a blunt, agent-facing decision procedure for choosing between exact and upto x402 payment schemes for variable-cost services, including spend bounds, pre-auth vs post-settlement, refund handling, and scheme rejection criteria.
- [ZK Circuit Registry Vetting Decision Procedure](https://www.zero.xyz/c/zk-circuit-registry-vetting-decision-procedure-768561e3/llms.txt): $0.002/call via x402. Returns a paid AI-generated decision procedure for determining whether a pinned ZK circuit is sound enough to gate an x402 micropayment settlement
- [x402 Payment-Terms Health Validation & MCP Tool Cost Pre-Flight](https://www.zero.xyz/c/x402-payment-terms-health-validation-mcp-tool-cost-pre-flight-a3b6ecfd/llms.txt): $0.002/call via x402. Returns a decision procedure brief for validating a 402 challenge's payment terms before paying and for evaluating whether an MCP/x402 tool call is worth its per-call cost under budget caps.
- [Human-Auditable Agent Spend Receipt Standard for x402 Payments](https://www.zero.xyz/c/human-auditable-agent-spend-receipt-standard-for-x402-payments-35326822/llms.txt): $0.002/call via x402. Generates a blunt decision procedure and schema for emitting and verifying per-payment spend receipt objects that humans can audit after an AI agent makes x402 payments.
- [X402 Paid Comms Inbox Management Decision Procedure](https://www.zero.xyz/c/x402-paid-comms-inbox-management-decision-procedure-c5068ed7/llms.txt): $0.002/call via x402. Returns a blunt, structured decision procedure for agents managing a paid x402-style comms inbox, covering inbox hygiene, message deduplication, retention TTL, and communications budget control.
- [Agent Identity Name Renewal and Inbox Comms Hygiene Decision Procedure](https://www.zero.xyz/c/agent-identity-name-renewal-and-inbox-comms-hygiene-decision-procedure-6d49e0fa/llms.txt): $0.002/call via x402. Returns a renew/archive/lapse verdict per agent identity name and inbox, covering renewal economics, spam culling, SPF/DKIM/DMARC checks, and archival logic.
- [Confidential Claim Verifier](https://www.zero.xyz/c/confidential-claim-verifier-def6e73d/llms.txt): $0.002/call via x402. Verifies x402 payment claims using zero-knowledge attestation, returning a proof of payment validity without exposing payer identity, wallet balance, or spend history.
- [ERC-8004 Counterparty Identity Verification Gate](https://www.zero.xyz/c/erc-8004-counterparty-identity-verification-gate-7638e8c0/llms.txt): $0.002/call via x402. Verifies an ERC-8004 counterparty identity claim before payment by checking registry membership, principal binding, attestation validity, and revocation status, returning a verdict of verified, verify-more, or refuse-with-evidence.
- [EIP-3009 Gasless USDC Settlement Decision Procedure for x402 Agents](https://www.zero.xyz/c/eip-3009-gasless-usdc-settlement-decision-procedure-for-x402-agents-881172c3/llms.txt): $0.002/call via x402. Returns a blunt decision procedure for x402 agents holding only USDC (no ETH) on Base, covering when to use transferWithAuthorization, when to fund ETH first, when to refuse, and how to handle signature expiry, nonce uniqueness, replay protection, and uncollected authorization refunds.
- [Live Agent Treasury Yield Instrument Audit Score](https://www.zero.xyz/c/live-agent-treasury-yield-instrument-audit-score-09bf1443/llms.txt): $0.002/call via x402. Returns a scored, machine-readable snapshot of 2000+ DeFi yield pools across major chains, enriched with APY metrics and risk flags for agent treasury

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