Explore APIs

MBTA stops search (keyless, Boston/US-scoped). POST {q|query|filter?}. Empty -> 400 not charged. Adjacent to mbta-routes. Board W44 swap for openalex-sources.

Library of Congress search fo=json (keyless). POST {q} and/or {c?}. Empty → 404 not charged. Board SWAP vs europeana-search.

Crypto Fear & Greed Index (alternative.me, keyless). POST {limit?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose defillama-protocols / coinpaprika (crypto sentiment lane ≠ mempool/btc-fee).

Dictionary definitions via api.dictionaryapi.dev (keyless). Word → meanings (partOfSpeech + definitions), phonetics, sourceUrls.

Google deps.dev / Open Source Insights package metadata (keyless). POST {system, name|package}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Disclose adjacency: packagist-package / nuget-package / osv-vuln-query / openssf-scorecard (≠ those products; deps.dev supply-chain lane).

DefiLlama protocols TVL list (keyless). POST {} or {name?, slug?, limit?, category?}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. DeFi TVL lane (≠ mempool/btc-fee / coinpaprika ticker).

CoinPaprika ticker quote (keyless). POST {id|coin|symbol}. Unpaid empty → 402; after settle empty/invalid → 400 charged:false. Soft disclose fear-greed / defillama. Not financial advice.

Blockchair chain stats (keyless). POST {chain?} default bitcoin. Chain-level stats — NOT mempool fee estimates (HARD REJECT lane). Soft disclose ≠ mempool/btc-fee · ≠ coinpaprika ticker.

Call GET /api/pulse?symbol=ETH for a one-line live token price on Base. $0.001 USDC. Use when you only need the number, not a brief.

Port/chokepoint congestion index (daily & live, computed from public AIS)

Crypto wallet screening: OFAC SDN sanctions check (refreshed daily) and a 0-100 risk score, with balances, activity and transaction-graph checks for EVM wallets.

Live forex fx rate and fiat reference exchange rate for currency conversion from the European Central Bank (ECB eurofxref-daily, default EUR/USD).

Count the LLM tokens in text for a given model or encoding — exact for OpenAI and open models (Llama, Mistral, Qwen, Gemma, DeepSeek, Command-R); labelled-approximate for Claude & Gemini.

Honeypot check, rug check and token safety check: is this token safe or a scam? Token verdict (safe/caution/danger), 0-100 token risk score and reasons. Chains: Base, Ethereum, Arbitrum, Optimism, Polygon, Robinhood Chain, Solana. Honeypot detector (EVM): simulated buy/sell with real tax. Rug check incl. Solana: owner, mint, blacklist, pause, proxy, mint/freeze authority, liquidity, holders, age.

Pay $0.05 USDC to seal up to 100 KB of text until a future date. Content is inaccessible via GET /open/{token} until unlock_at passes. An optional label is visible before unlock via GET /status/{token}. Max unlock date: 10 years from now. Network: Base Mainnet. Each request stores one sealed text capsule and returns a token for later retrieval.

The Agents Gift Shop — Designs created by the paying wallet (paid)

A deterministic Base chain identity and official USDC contract-presence check. No request body. Not a token-risk report, transaction simulation, or payment proof.

Live positions and the last 24 hours of events of one live bot

Whale Radar: live Hyperliquid perps positioning of the largest and highest-PnL public accounts for one coin (or ALL): whale net long/short, smart-money bias, top positions with liquidation prices, a liquidation-cluster map, funding/OI/premium crowding and squeeze risk. Not investment advice.

Quick Solidity pre-audit check, $0.90 USDC on Base: send source or a verified contract address + chain; the same automated engine returns the verdict (grade, score, security and owner-trust risk), severity counts, the top 5 findings with location and fix, and owner powers found (mint, pause, blacklist, fees, upgrade). Triage, not a human audit; failed runs not charged. Every finding with code and

Pokémon card appraisals, $0.02 a call in USDC on Arc, Base, Polygon or Solana. Raw and every PSA/BGS/CGC/SGC grade in 9 currencies, each with source, sample size and dates; set momentum, projections, PnL net of marketplace fees, break-even; EIP-712 signed. No basis, no number.

Base USDC lending APY. Should you park this wallet's USDC on Base? Snapshot of native USDC + ETH, then the same size-aware Aave V3 vs Morpho Gauntlet USDC Prime yield pick (USD per year, days to break even, skip if gas eats it). Not a deposit instruction.

Current USDC and USDT transfer fee in USD per chain, bound to a block number with a validity window.

Searches Polymarket prediction markets by text and returns current outcome prices, volume, liquidity, end date and resolution status. Read-only market data, not financial advice.

cryptoanalysis.info hypothetical advisory track record: bounded completed-session history and summary, with the confidence quality statistics. The history ends 7 days before the request's UTC date.

Solana SPL Token / Token-2022 mint and extension observations from finalized RPC; unknowns remain unknown. Free preparation returns an immutable report ID; paid read costs 0.01 USDC on Base. Not a sellability or safety verdict.

Korean mobility and EV supply-chain intelligence, sold per query. Structured feed tracking Korea's automotive-electronics and robotics supply chain - batteries and battery materials, EV components, robot parts, actuators and reducers, semiconductors, and tier-1 suppliers to Hyundai/Kia - written from Korean primary reporting and DART filings English-language sources do not cover. Filter by date, c

Ranks models cheapest first by blended USD per 1M tokens (inputShare weights input vs output). Filter by provider, mode, minContextTokens, input/output modality, function calling, vision and price caps. Skips sample_spec and models past their deprecation date.

A Lasso EVM RPC key funded with this USD credit: one endpoint per chain, routed across providers with failover. The paid response returns the key and its RPC URL.

Korean automotive-electronics intelligence (jeonjang = vehicle E/E systems), sold per query. Structured feed of Korean auto-electronics news, analysis and KPIs - software-defined vehicles, ADAS, automotive semiconductors, in-vehicle networking, power electronics, and the Hyundai/Kia, Mobis, LG and HL Mando supply chains - written from Korean primary reporting English-language sources do not cover.