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aave-v3-arbitrum-usdc: USDC supply APR, time-weighted over 2026-09-23→2026-09-24, signed. Cheaper than the agent turns you'd burn finding the contracts, decoding ray-scaled rates, sampling the series, and time-weighting it — you trust the math, not us. Verify it offline — schema, every published figure recomputed, and the secp256k1 signature — with no API call and no trust in us.

Describe a task in plain language and get the 3 best live, trustworthy services with the reason for each, call instructions and fallbacks.

Decode a VIN (NHTSA vPIC) and return the NHTSA recall campaigns for that make/model/year in one call (not a per-VIN open-recall check). Optional includeComplaints=true. Undecodable VIN -> 422, not charged.

VIN decode + NHTSA recall campaigns + complaint summary for the make/model/year (query: vin OR make+model+modelYear, recallLimit 1-100). Bad input 400, undecodable VIN 422, no NHTSA records 404; none are charged.

Scan npm package meta+readme+scripts (spec=name[@ver])

Live health check of a public remote MCP endpoint: reachability/TLS, Streamable HTTP initialize, protocol version, tools/list schema sanity, tool-description safety flags, auth and x402 detection. Read-only (never calls tools). One price per check.

One Code of Federal Regulations section as clean agent JSON (eCFR): heading, hierarchy, paragraphs with (a)/(1) labels, tables as rows, source note with Federal Register citations, point-in-time text for any date since 2017. Example: cite=24 CFR 982.503

City code-enforcement cases for a street address (Austin TX, New Orleans LA, Seattle WA, Cincinnati OH) → normalized agent JSON with license + provenance. One price per lookup (up to 50 cases). Research use only; protected-class, proxy and contact parameters are refused. Property records only, not consumer reports: not for tenant, credit, employment or insurance screening (FCRA).

Business-day arithmetic that respects weekends and a country's public holidays. Either add N business days to a date (SLA due dates, shipping ETAs) or count business days between two dates. Weekend days are configurable (e.g. 'fri,sat').

TELAGO x402 paid MCP settlement ping.

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Sumbloom: Original solver-checked number puzzles (JSON or SVG) for apps, classrooms and AI agents.

Sumbloom: Original solver-checked number puzzles (JSON or SVG) for apps, classrooms and AI agents.

Batcave Detective Basic: fresh-context supplied-evidence audit of an agent conclusion for unsupported assumptions, contradictions, stale premises, and drift from the original task.

Parses a bank statement (CSV from any bank, camt.052/053/054, MT940, OFX/QFX, QIF) into normalized JSON: accounts, balances and signed transactions with ISO dates, counterparty, reference and OCR number. Deterministic, no AI, nothing stored. JSON body up to 1000 KB. Failed calls (4xx/5xx) are not settled.

Spain's regulated household electricity price (PVPC, peninsula) for today or tomorrow, hour by hour, with the cheapest hours and the cheapest 2h/3h windows. Use when an agent must schedule appliances/EV charging or answer 'when is electricity cheapest in Spain today/tomorrow'. Data: Preciluz (preciluz.com, CC-BY-4.0) from REE/ESIOS.

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List sports markets grouped by game

Email address check: verdict (deliverable_likely/risky/invalid) with reasons from syntax, MX/A records, disposable-provider list, role address, free provider, typo suggestion, SPF/DMARC/DKIM and domain age. Use when an agent is about to send to, sign up, or accept an email address and wants to avoid bounces, throwaway or mistyped addresses. One address per call; no SMTP mailbox probing.

AI infra claim verification — pay-per-query.

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Sidera compiles Claude, Codex, Grok and Gemini session logs into structured memory.md and lossless raw.tar.zst with source references. Request, upload and measurement: https://shadowharness.com/sidera/ORDERING.md. 100 measured MB: $2.000000 USDC. Approx. 15-30 minutes after payment. Quote valid 10 minutes; cancellation/expiry deletes unpaid input.

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ScriptDocs paid MCP tool call (docs_check_vulnerabilities, docs_get_readme): $0.009 USDC per call via x402 v2 exact on Base.

Send any x402 resource URL, get a trust verdict on the endpoint itself. Returns TRUSTED / CAUTION / AVOID with a 0-100 score from an observation-only live probe (never pays the target): payment terms, Bazaar discovery-schema quality, CDP Bazaar and PayAI catalog presence, plus a diff against the previous check. Use this when an agent is about to pay an unfamiliar x402 endpoint and needs to know it

Binary agent trust verification

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OpenAI-compatible chat completions (local GPU, Quebec/CA)

Deterministically compare caller-supplied content with a caller-supplied SHA-256 digest. Integrity comparison only; no identity, provenance, or security guarantee.