Agent & Infrastructure

Fetches https://domain/.well-known/nostr.json with the name query parameter and reads the mapping the domain publishes. The answer states the resolved public key in hex and as npub, the relay hints the document lists for that key, and the HTTP status and final URL after redirects, so a redirect to a login page is distinguishable from a genuine answer. Given an expected public key, the comparison is made and the result is reported as an explicit match or mismatch rather than left to the caller.

Detects the true image format of any URL via magic byte inspection — works even when the file extension or Content-Type header lies (common with proxied or CDN-hosted images). Returns: format (png/jpeg/gif/webp/avif/bmp/tiff/svg/ico/unknown), detected MIME type, whether Content-Type header matches, file size (bytes), and pixel dimensions for PNG and JPEG. No API key required. $0.050/call.

Returns a concentration-risk score for an x402 pay_to wallet: HHI, unique payer count, top-payer share, persistence across scans, and a risk tier (LOW / MEDIUM / HIGH / CRITICAL). An agent uses this to assess whether an endpoint is a single-agent dependency before building a workflow that depends on it.

QuokkaPix official browser-agent batch/scenario unlock. Images stay local in the user's browser.

Live job postings without scraping: company= returns an employer's current openings straight from their official ATS board (Greenhouse, Lever, Ashby, SmartRecruiters) with title, location, department, type and apply URL; query= searches remote-heavy job APIs (Remotive, Arbeitnow) by keyword. Optional location= filter. JSON response. $0.02 USDC per call, pay via x402, no API key.

LEGIT: trust scores and organic demand intelligence for the x402 agentic economy. Created by GONNA.

LEGIT: trust scores and organic demand intelligence for the x402 agentic economy. Created by GONNA.

LEGIT: trust scores and organic demand intelligence for the x402 agentic economy. Created by GONNA.

Every relay is measured twice over. Over WebSocket a genuine REQ query is sent and the connection time, the time to end of stored events and the number of events returned are recorded — a relay that accepts the connection and then stays silent is the failure mode a reachability ping cannot see.

Queries the European Patent Office Linked Open Data endpoint, which is the only patent source still reachable without a key: PatentsView has been retired, and both EPO OPS and the USPTO Open Data Portal answer 403 without credentials. Coverage is therefore EP publications and this is stated in every response, because an empty result here proves only that no European publication exists, not that no patent does.

Fetches kind 3 contact lists over up to twelve relays. Because kind 3 is replaceable, several relays regularly hold different versions; only the one with the highest created_at is used and the answer states which relays carried that version and how many older versions were seen, so a stale relay never quietly overwrites a current list. At depth 1 the answer is the account and its outgoing follows.

x402 Trust Index dossier for one Bazaar resource: trust score with full scoring evidence, every registry snapshot (SHA-256 audit trail), every change event (price/payTo/schema/listing) and every live-probe result. The complete due-diligence bundle before paying an endpoint. Free preview: https://5.75.142.199.sslip.io/x402/trust/{id}

Signed attestation for one x402 resource: its observed record, observed trust score, a Merkle inclusion proof into that day's root, the daily hash-chain root (previous_root linked) and an Ed25519 signature, plus independent verify steps. Tamper-evident evidence of what was observed at a point in time. Free preview: https://5.75.142.199.sslip.io/x402/trust/4

On-chain ERC-8004 reputation for any agent + Aegis probe cross-check + divergence signal.

Ask any sports or prediction-market question in plain language — the front door to SignalPulse's deep engines. Returns a data-grounded answer with an explicit DATA-vs-OPINION split (every claim cites its stat), a betting or fantasy angle when relevant, and a pointer to the deepest named endpoint. Honest when a question is outside coverage — it routes, it doesn't bluff. Verifiable track record: https://signalpulse.theaslangroupllc.com/track-record

Ask any sports or prediction-market question in plain language — the front door to SignalPulse's deep engines. Returns a data-grounded answer with an explicit DATA-vs-OPINION split (every claim cites its stat), a betting or fantasy angle when relevant, and a pointer to the deepest named endpoint. Honest when a question is outside coverage — it routes, it doesn't bluff. Verifiable track record: https://signalpulse-peach.vercel.app/track-record

Is this counterparty safe to pay? Screens the address against the OFAC sanctions list, reads its ERC-8004 reputation with coordinated feedback filtered out, and returns an explainable 0-100 trust score with a proceed / hold / block recommendation. Reports insufficient_data rather than guessing when the evidence is not there.

Returns settlement-verified x402 endpoint intelligence. Shows which endpoints have genuine organic payer breadth and live pricing — sourced from on-chain USDC settlements, not just catalog listings. Filter by category, price range, and minimum unique payers. Useful before wiring a workflow to an external x402 endpoint: confirms it is active with multiple independent payers, not private infrastructure or a dead listing.

One call returns prediction market sentiment (Limitless Exchange) + live equity price for a specified ticker. Collapses the prediction-market → stock-price agent chain into a single x402 payment. $0.016 vs $0.024 bought individually. Inputs: ticker (required), query (optional keyword filter for prediction markets).

AI-synthesized intelligence report — aggregates Hacker News, OpenAlex academic papers, Reddit, arXiv preprints, and DuckDuckGo in parallel, then distills into a structured report: executive summary, key findings, market sentiment, emerging trends, and recommendations. Pass ?query=your+topic for targeted research (e.g. 'AI agent payment protocols 2025'). Omit query for a default AI agents & autonomous systems report. $0.200/call — 20% below nearest competitor.

Analyzes a code snippet and returns its API surface: HTTP routes (method + path), exported symbols, and middleware. Supports Express, FastAPI, Flask, Django, Spring Boot, ASP.NET, Rails, Gin. Pure static analysis — no code execution. Returns JSON with routes[], exports[], middleware[], lang, framework, and a plain-English summary. $0.10/call.

Cross-platform social momentum for any topic. Queries Reddit (recent top posts), Hacker News (recent stories), and GitHub (active repos) in parallel and returns a composite momentum score (0–100) plus raw results from each platform. Single call replaces three separate searches. Use before committing to research, writing, or trading: 'is this topic gaining traction right now?' No API keys required.

Market intelligence for any x402 endpoint or operator wallet. Returns settlement volume, unique payer count, price range, reputation tier, activity window, and endpoint description — drawn from 4.1M+ Base mainnet settlements in the Stall's proprietary on-chain dataset. Use before routing agent spend, vetting a counterparty operator, or benchmarking competitor pricing. No external API. Covers 80,000+ operators across 10+ days of live traffic.

Today's GB/IRE racing card scanned for AI betting & research agents — the single highest expected-value pick plus value selections across every race, horse or greyhound. Fires the full engine: RPR/Topspeed, draw bias, pace, going×form and trainer/jockey records (horses); early-speed, trap affinity, run-time & track-bias (greyhounds); live exchange/forecast prices for genuine EV. Sizing, alerts & the tracked record are premium.