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Gold, silver and major macro FX reference in one call for portfolio-hedging agents. ECB + metals reference. Free source. $0.05 USDC via x402 on Base. SYNTHORA. Pay-per-call via x402 on Base. No charge on upstream failure.

SYNTHORA mtasts: sMTP transport-security audit: MTA-STS (RFC 8461) + TLS-RPT (RFC 8460). Resolves the policy DNS records, fetches and parses the well-known policy file, cross-validates the policy mx: patterns against the domain's real MX, and returns an enforce/report verdict. Complements SPF/DKIM/DMARC auditing with the TLS transport layer. Deterministic, Ed25519-signed. SYNTHORA.

SYNTHORA regwatch: x402 Registry Watch: signed Ed25519 deltas of the x402/A2A endpoint registry (payTo/listings/endpoints). Pay-per-event feed pull. POST {"since":"<cursor|ISO>","slug":"<slug>","limit":<=200}.

SYNTHORA sanctions-screen: sanctions screening with MATCH / CLEAR verdict over 4 official downloads (OFAC SDN primary and alias lists, UN, OpenSanctions). Multilingual, tested on Cyrillic transliterations.

SYNTHORA market-dominance: BTC and ETH market dominance contrasted between TWO independent providers (CoinGecko and Coinlore), reporting the discrepancy in percentage points and a confidence grade — you get not just the number but whether the number can be trusted. Deterministic, Ed25519-signed. $0.05 USDC on Base.

Decision verdict for prediction markets: probability, direction and multi-source evidence with declared sources. $0.05 USDC x402 Base.

MCP Server Security Scan: probes an MCP server (JSON-RPC initialize + tools/list) and applies a deterministic rule engine over its tools — embedded secrets, dangerous shell/exec/filesystem capabilities, prompt-injection surface, hidden unicode, permissive input schemas, and auth/TLS/CORS headers — returning a security_score + findings[]. The trust layer for the agent economy. Zero-LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.

SYNTHORA translate: translate any text between 100+ languages with automatic source-language detection. Preserves tone, formatting and placeholders. Deterministic JSON output, Ed25519-signed. SYNTHORA.

SYNTHORA prediction-markets: top prediction markets from Polymarket and Kalshi — implied probability, bid-ask spread, liquidity, volume, open interest and freshness seal (UTC timestamp). Filter with {"limit": N, "source": "all|polymarket|kalshi", "min_liquidity": usd}. For autonomous trading, political-risk and allocation agents. $0.05 USDC via x402 on Base. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.

SYNTHORA macro surprise index: z-score of the latest change vs the trailing 12-change distribution for official ECB series (HICP inflation, MRR policy rate, 10Y yield). Flags strong/moderate surprises the moment official data prints. Partial degradation, Ed25519-signed. First 3 calls FREE per wallet via X-WALLET header. 0.05 USDC via x402 on Base.

Real-time and historical OHLCV candles (open/high/low/close/volume) for any crypto pair, any interval. For backtesting and signal agents. Free source. $0.01 USDC via x402 on Base. SYNTHORA. First 3 calls FREE per wallet — send header X-WALLET: 0x<addr>. No charge on upstream failure.

Counterparty business-risk verdict: one call fuses OFAC/EU sanctions screening, on-chain wallet reputation, and token/pool contract risk into a single weighted risk_score (0-100), a kill/pivot/proceed verdict, and reason_codes naming which sub-signal drove it. Weights: sanctions 0.50, wallet 0.30, token 0.20, renormalised if a leg is unavailable; a sanctions hit is a hard KILL floor. Degrades gracefully — a failed sub-check is dropped, never crashes the verdict. Deterministic, no LLM, Ed25519-signed. 0.05 USDC via x402 on Base. SYNTHORA.

SYNTHORA chokepoint-risk: SUPERCORRELATED risk verdict per maritime chokepoint (Hormuz, Suez, Panama, Bab el-Mandeb, Malacca, Gibraltar, Taiwan) — crosses REAL TRAFFIC (IMF PortWatch, canonical Polymarket resolution source) x NARRATIVE (GDELT global news spike+tone) x NAVIGABILITY (WaveWatch III sea state) into one score with confidence level. The alpha: narrative/traffic divergence (noise without disruption = market overreaction; silent disruption = early signal). Sources declared; degraded sources lower confidence. $0.05 USDC x402 Base.

SYNTHORA Onchain Primitives: multichain (Base/Ethereum/Polygon/Arbitrum/Optimism) transaction receipts, tx lookup, wallet nonce, contract/proxy (EIP-1967) detection, ENS resolution, ERC20 + native balances, contract introspection. Deterministic, Ed25519-signed. 0.001 USDC via x402 on Base. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); after that 0.001 USDC per call.

Text-to-video, image-to-video, upscale, interpolate, subtitles, background removal and shorts. Rendered by the Animica GPU-miner queue. Sold only while a miner for the requested kind is online — the catalog reports available:false and the endpoint answers 503 otherwise. Returns a job handle immediately (rendering is asynchronous); polling the returned poll_url is free. Kinds: video_t2v, video_i2v, video_multiscene, video_upscale, video_interpolate, video_subtitles, video_bgremove, video_shorts.

Music generation, stem separation, vocal isolation, enhancement and mastering. Rendered by the Animica GPU-miner queue. Sold only while a miner for the requested kind is online — the catalog reports available:false and the endpoint answers 503 otherwise. Returns a job handle immediately (rendering is asynchronous); polling the returned poll_url is free. Kinds: audio, audio_stems, audio_isolate, audio_enhance, audio_master.

Otto X402 Router — Meta Intelligence. Ask what data/service you need; get the best Otto-verified plus live CDP Bazaar x402 candidates with prices, pay_urls and blunt source labels. Non-custodial discovery.

Turn a company-name fragment or stock ticker into the SEC EDGAR identifiers. Searches the SEC listed-security index and returns ranked matches with the 10-digit CIK, ticker, registered name and listing exchange. Deterministic ranking: ticker exact, then name exact, then name prefix, then name contains. Use it for names — the other company.us.* capabilities take a ticker directly. Use when: Which SEC filer and CIK does the company name "Apple" belong to?

European Central Bank euro foreign exchange reference rate for a pair - the official daily fix used for accounting, invoicing and reporting - latest or any date in the last 90 days. The ECB publishes EUR/XXX only, so inverse and cross rates are computed from the same fix and named in rate_derivation. One fix per TARGET working day, not a tradable market rate. Use when: Convert or report an amount at an official daily rate both sides of a contract can verify against the ECB.

Base wallet portfolio in one call: native + major ERC-20 balances with USD values and total. Onchain USDC pay-per-call.

ERC-20 token report on Base/Ethereum: name, symbol, decimals, total supply, USD price. Onchain pay-per-call in USDC.

Base/EVM gas oracle: base fee + priority-fee percentiles (slow/avg/fast) + next-block estimate. Onchain pay-per-call in USDC.

Agent researches a topic (web) and returns a concise, structured, cited brief. ?topic=. Pay-per-call in USDC on Base.

Best DeFi yields: top pools by APY filtered by asset + min TVL, with risk flags. Agent-ready, USDC pay-per-call.