social-media-engagement-boost

SYNTHORA registry-watch: pay-per-event feed of signed Ed25519 deltas from the x402/M2M endpoint registry — new and changed endpoints, payTos and listings. Pull with {"since": "<cursor|ISO>", "slug": "<slug>", "limit": <=200}; each delta is individually signed and the full response is signed again (double provenance). $0.03 USDC on Base.

协议费用与收入榜 — 链上协议真实赚钱能力：Top50 协议/公链的 24h/7d/30d 费用(用户支付)与收入(协议留存)、变动%。区分'有真实现金流'与'纯补贴刷量'的硬指标，链上基本面分析核心。

Cheapest-model router: send your token workload and get every current LLM ranked by estimated USD cost, with per-MTok prices, cached-input rates, and context windows. Backed by the weekly-verified llm-pricing table — every figure carries its official source URL and verification date.

Delx Commerce budget image generation API for $0.005 USDC (FLUX Schnell entry tier). Call when you need a cheap image, quick concept, thumbnail, or low-cost draft under the $0.01 draft SKU—paid commercial Replicate only (never mediagen). Public WebP URL + SHA-256 + explicit markup via x402 on Base.

Pay 10 sat to submit a fix on Ganamos

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.

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

Verify whether an email address is real and safe to send to. Checks RFC syntax, live MX records, catch-all and disposable/temporary domains, role accounts (info@, admin@), free providers and common typos, returning a deliverability status and confidence score. Use it to validate and enrich contacts, clean email lists and prevent bounces. Deterministic, Ed25519-signed. 0.001 USDC on Base. First 3 calls FREE per wallet — send header 'X-WALLET: 0x<your Base address>' (no payment); then per call.

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.

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 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.

Batch wallet trust fact profiles, priced per submitted wallet: one call, up to 10 wallets, each independently signed.

GitHub user public profile. Requires x402 USDC payment of $0.001 on Base mainnet.

Pay with base

Reads the fee history of the last 20 blocks on Ethereum, Base, Arbitrum, Optimism, Polygon or BNB Smart Chain and returns what a transaction costs right now. Priority fees come from the 10th, 50th and 90th percentile of the tips actually paid in those blocks — the percentile used is named, not hidden. On rollups the L1 data fee is quoted separately from the L2 execution fee, because it is often the larger part and an estimate that merges them is simply wrong; the L1 part is computed from the cha

Price impact and slippage for a specific trade size on Base - what will my trade actually get, not just the spot price. Simulates the swap against live reserves across BaseSwap, SushiSwap and Uniswap v3 and returns the best execution venue, amount out, price impact in bps, the pool fee separately, and what correct routing saves versus picking the best quoted price. Pre-trade execution check for trading bots and DEX aggregators on Base L2 / Coinbase L2.

One LLM generation on a rented GPU, priced per request.

SYNTHORA LLM Gateway FAST: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Fast free-tier models (llama-3.1-8b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {"messages":[{"role":"user","content":"..."}]} (or {"prompt":"..."}).

Takes side, size and size_unit and simulates the fill against the visible book of Binance, Coinbase, Kraken, OKX or Bybit. avg_price is the size weighted fill price, worst_price the last level touched, slippage is stated against the mid and against the best price on the executing side, with the reference named. If the visible depth is not enough the answer is still valid and paid: insufficient_liquidity is true, filled_pct says how far it got and max_fillable_size names the size the book actuall

SYNTHORA LLM Gateway FAST: OpenAI-compatible /v1/chat/completions pay-per-call, no API keys. Fast free-tier models (llama-3.1-8b class) with automatic upstream failover, Ed25519-signed. 0.005 USDC via x402 on Base. POST {"messages":[{"role":"user","content":"..."}]} (or {"prompt":"..."}).

SYNTHORA bitcoin-fees: Bitcoin fee tiers in sat/vB (fastest/half-hour/hour/economy/minimum) plus current block height. Source: mempool.space public API, keyless. Bitcoin only.

Payoff points for multi-leg options at sample spots. Call when diagramming a structured option package offline. Returns points list of spot→payoff as deterministic JSON for $0.001 USDC via x402 on Base. First-party local math only—no RPC, live market feed, API keys, storage, or mediagen. Advisory only; the caller owns capital, risk, and production controls.

CORS Origin Check: CORS Origin Check compares a request origin with explicit allowed origins from bounded caller-supplied values without an external provider. Call CORS Origin Check before accepting, caching, redirecting, or retrying a caller-supplied web response. Returns normalized web evidence, the computed finding, and an explicit pass or advisory status for CORS Origin Check as versioned deterministic JSON. Price: $0.001 USDC via x402 on Base. First-party, stateless, memory-only execution…