Crypto & Blockchain

Query Polymarket markets with filtering, sorting, and pagination

List of currencies supported by the Frankfurter ECB rate service with full currency names, no key. For AI agents validating currency codes and building dropdowns and conversion UIs.

Latest ECB reference exchange rate from one currency to another via Frankfurter, no key. Returns base, date, and the converted rate. For AI agents doing reliable fiat conversion, treasury, and pricing math.

USD Coin

Full ERC-8004 feedback forensics. Sybil detection, reviewer reputation weighting, cross-chain identity resolution, temporal anomaly flags, risk assessment. Covers every ERC-8004 registry chain plus Solana.

ERC20 token risk analysis on Base mainnet. Checks ownership renounced, mint authority, blacklist functions, honeypot, top-holder concentration, 20+ security signals. 0-100 risk score with red/green flags. AI agent scam detector, DeFi due diligence, token safety API, Base L2.

Any World Bank macroeconomic indicator time series for any country by ISO code and indicator code (GDP, inflation, population, trade): yearly values with name, country, year, value. For AI agents doing macro analysis, sovereign risk, and country comparison.

USD Coin

USD Coin

USD Coin

USD Coin

The top trending coins on CoinGecko over the last 24 hours, ranked by how often users searched them.

Performs security and compliance analysis on autonomous agents before their public release.

Latest ECB reference rates. Optional base currency and a symbols filter; omit both for all rates against EUR.

Get funding rate pattern signals (streaks, extremes, divergences)

Cheap deterministic Blockscout-only transaction status and receipt lookup for AI agents.

Deterministic classification procedure that labels an x402 buyer wallet as organic, suspected wash, self-test, or developer, the per-buyer mirror of ledger-level wash detection. Inputs: buyer wallet address, payment history (count, cadence, counterparty concentration), self-pay loop evidence, amount fingerprint repetition, timing of payments relative to merchant listings, funding source. Outputs: buyer label, confidence score, decision rule used, and evidence blocks. Thresholds: self-pay loops where payor equals payee or flows through 2-3 owned wallets within short windows classify as suspected wash; burst cadence with identical amounts to the same merchant across fresh addresses classifies as suspected wash; wallet that only pays its own listings or its own endpoints is self-test; wallet with regular organic counterparty diversity, varying amounts, and settlement receipts is organic; developer labels apply to testnet faucet funding or dev-tool endpoints. Falsifiers: low volume is not wash; a developer wallet that self-tests then buys organically must be re-labeled; burst cadence alone is not wash without counterparty concentration; a fresh address repeating the exact amount of a prior wallet is linkable and wash-suspect. Kill criteria: never label a wallet wash on cadence alone, never treat missing receipts as evidence of wash, never apply a label to a wallet with fewer than 3 distinct counterparties.

RTK Motion — location threat intelligence FULL assessment. Everything in the lite tier PLUS flagged_items (corroborated source events with entities, temporal context, asset hits, corroboration scoring). For security_operations or insurance_risk_modeling. Default location fbcl-longwood (?location=, ?region=). ECDSA-signed provenance + 15-min signed download URL.

PolySignal ranks current Polymarket opportunities by EV, confidence, size hint, risk, and staleness for agent research workflows.

Decision procedure for when an agent's predictable onchain payment or trade needs mempool opacity. Covers: front-runnable pattern scoring for scheduled payments, recurring x402 settlements, and timer-driven DEX trades; value thresholds that trigger private-transaction relay routing; timing randomization and deadline jitter to break mempool prediction; slippage and priority-fee discipline for visible transactions; batch-and-reveal grouping for multi-part settlements; and the fallback ladder from

Get recent DEX trades by smart money wallets. Spot what top traders are actively buying/selling.

Market-intelligence decision journal with built-in anomaly scoring, calibration, verification, hard liability disclaimers, and accountability. Returns directional_bias, anomaly_score, anomaly_level, agreement_score, verified, calibrated_confidence, and a decision_id to verify the outcome via /kronos/audit. No output is a market activity instruction.

Barker's cross-chain route availability for a stablecoin from a given chain (bridge/venue coverage). Use for 'bridge USDC from arbitrum', '跨链路径'.

Crypto fear & greed index (current + previous reading). JSON.