Polymarket sponsor rewards API for agents. Finds prediction market reward programs with CLOB liquidity, volume, spread, and current daily reward rates.

Wallet risk + sanctions check. Combines Chainalysis Sanctions Oracle (OFAC SDN authoritative) with GoPlus address heuristics (mixers, phishing, scams).

Current gas price + base fee + tip percentiles for fast/standard/slow inclusion.

Crypto ETF Sentinel — Curated directory of every active US spot crypto ETF issuer, including staking ETFs (100+ entries across 30+ cryptocurrencies). Each entry carries regulatory-stage classification (registration_filed / under_review / launch_imminent / trading / approved / withdrawn), ticker, exchange, owner organisation, and SEC CIK. Pair with paid per-issuer routes (``?cik=`` query param) to drill into comment letters, XBRL financials, or POS AM profiles.

Score an x402 paid resource for payment safety, discovery completeness, replay/binding risk, and autopay suitability before an agent spends. Returns JSON. Price 0.15 USDC on Base via x402. Demo/preview: https://x402-endpoint-risk-corpus.mtree.workers.dev/demo/risk_report. Contact: https://x402-endpoint-risk-corpus.mtree.workers.dev/contact.

Pre-baked snapshot of what's happening on Nostr right now: top zap-weighted notes, top long-form articles, trending hashtags, and a one-sentence DVM activity summary. Combines the signal of the $0.02 endpoints into a single human/agent-ready brief, with hashtag clustering and article-title extraction included. Query ?window=1h|6h|24h.

Crest · exchanges — Fetch top 15 crypto exchanges ranked by volume. Returns trust score, 24h BTC trading volume, and country of registration.

Look up a Harris County property by its HCAD account number.

Rolling index of NIP-90 Data Vending Machine activity on Nostr. Shows what AI/data services agents are paying each other for right now — the sats-denominated agent-economy leading indicator. Per-kind breakdown of requests, responses, unique customers, unique providers. Query ?window=15m|1h|6h|24h.

Polymarket API and prediction market pro screener for agents. Ranks setups by score, confidence, liquidity, spread, volume, momentum, and mispricing.

Standard endpoint health check with extended verification

Token security risk score (0-100) from GoPlus + heuristics: honeypot detection, mint/owner perms, holder concentration, buy/sell taxes.

Cross-protocol liquidation risk for a wallet's lending positions. Health factor, USD-at-risk, and recommendations across Aave V3, Compound v3, Spark Lend, and Morpho Blue. Pass ?chain=all for cross-chain aggregate.

Search Harris County (HCAD) property appraisal records by address.

Aggregated token metadata (CoinGecko + DefiLlama): market cap, supply, addresses across chains, recent volume.

Batch x402 endpoint risk check: preflight many endpoints before paying any of them.

DripMetricsAI (api description at https://dripmetrics.ai/) provides on-demand crypto market microstructure and risk metrics for agents and developers. Agents can pay per request via x402 and receive structured JSON metrics without subscriptions or API keys. Historical volatility for a crypto asset over a specified lookback window. Discovery examples use the latest 30m window.

Return rough English readability estimates with caveats for short, bullet-heavy, heading-heavy, or mixed-language text.

Return deterministic structural counts: characters, words, sentences, paragraphs, headings, bullets, and averages.

Verified x402 API directory for autonomous agents: discover x402 pay-per-call endpoints with settlement proof, schema quality, examples, freshness, seller score, and registry coverage. Price 0.08 USDC on Base via x402. Free preview: https://x402-market-intel-mcp.mtree.workers.dev/preview/verified_endpoints?source=x402_manifest. Demo: https://x402-market-intel-mcp.mtree.workers.dev/demo/verified_endpoints. Contact: https://x402-market-intel-mcp.mtree.workers.dev/contact.