Historical daily ECB FX rate for any currency pair on any date going back to 1999. Covers major + emerging currencies USD EUR GBP JPY CHF AUD CAD CNY. AI agent historical tx reconciliation, returns computation, regulatory reporting, forex backtest API.

Single-fact: age in seconds of the freshest record in the named source (shadow_blocks|borrower_snapshot|morpho_borrower_snapshot|missed_liquidations|executions).

Enriched AI agents directory. One paid call returns the catalog joined with live provider status, recent news mentions, 24h agent traffic, and sample model pricing, ranked by a derived trending score. The agent-discovers-agent feed.

AI-package release velocity. Per-package releases_24h / releases_7d / releases_30d, latest bump classification (major/minor/patch/prerelease, pre-1.0 minor counts as major per semver), is_breaking_recent flag (major bump within 30 days). Notable movers: recent_major_bumps, most_releases_7d, fastest_cadence_30d. Filter by ecosystem (PyPI/npm), category (llm-sdk, agent-framework, etc), or package substring. The "what AI deps just changed and is it breaking" call.

Single-fact: is borrower X currently liquidatable? Returns {found, liquidatable, hf, debt_usd, last_seen_ms} sourced from Aave + Morpho snapshots.

AI-stack CVE intelligence. Filters fresh security disclosures to vendors and products in the AI inference, agent framework, training, vector DB, model gateway, and MCP tool layers. Each paper carries a tf_ai_category tag and a severity_rank, sorted with exploited-in-wild and critical-severity first. 99.8% of underlying data is from GitHub Security Advisories (CC BY 4.0).

A company's US patents from the USPTO Open Data Portal, newest filings first. Pass `?company=Tesla` (required, matches APPLICANT name — subsidiaries/variants need separate queries) plus `?limit=` (max 100). Each carries patent & application numbers, title, filing & grant dates, status, applicant, inventors, and a link. From x402stock, a market & economic data API (x402, USDC).

Base gas oracle / Base gas price API / Base L2 gas fee tracker / real-time gas estimator / swap cost estimator. Returns the current Base fee, fast/standard/slow priority tiers, the USD cost of a typical swap, and a congestion recommendation. For AI agents, trading bots, and wallets timing transactions on Base to minimize gas.

Top-N AI model recommendation for a task. Joins live pricing, benchmarks, provider status, and latency into a single composite score so an agent gets a ranked answer in one call instead of stitching three free endpoints together.

AI-package security radar. Per-package risk_score (0-100) over the daily OSV snapshot of curated AI/ML PyPI + npm packages: critical_count_30d * 25 + high_30d * 12 + critical_90d * 6 + high_90d * 3 + min(open_count, 20) + 5 if any advisory in last 7d, saturated to 100. Risk_band classifications (calm <10 / watch 10-25 / hot 25-50 / critical 50+) plus notable_movers (top-5 by_critical_30d, by_risk_score, new_in_last_7d). The "which AI deps should I be worried about right now" call.

Cross-venue arbitrage spread between Polymarket and Limitless on a topic. POST {topic, limit?}. Pulls matching markets from Polymarket's public Gamma API and Limitless's REST search, pairs them by closest-price match, computes per-pair yes-mid spread + arbitrage direction. GA assembles a JOIN that single-venue passthroughs can't return. Naive pair-up — agent should confirm semantic match before sizing.

ShieldAPI - x402 security preflight before agents connect to IP infrastructure

Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes. Customers earn real value with every purchase. AI agents automate the rest.

ShieldAPI - x402 security preflight before agents trust an identity, sender, or email counterparty

Size-the-room for a Hyperliquid market. POST {coin, n?}. Returns the top N (default 10, max 25) traders on a coin ranked by volume, each with skill_score + classification + liquidation_count. Pre-trade check for MM agents: 'who am I about to be against on this perp, and have they been liquidated before?' Coin format: BTC, @107 (spot), xyz:SILVER.

LastLook Data — refinance signal bundle: current 30yr and 15yr mortgage rates, 52-week range, MBS spread, rate trend, and refi break-even threshold. Tells an AI agent whether a borrower should consider refinancing.

Pre-trade exit-liquidity check for an ERC-20: top-10 holder concentration %, ex-LP/ex-known-router concentration, per-holder balance %, contract-or-EOA flag. High concentration = thin exit liquidity. Chains: ethereum, base, arbitrum, optimism.

Extracted item-level text from a specific filing (e.g., 10-K Item 1A Risk Factors).

Live token price, liquidity, FDV, 24h volume & change via DEX aggregation.

Real-time crypto price + coin info ($0.1). Returns current price (KRW), change rate, kimchi premium, daily high/low, trading volume, market cap, and coin profile. Symbol: BTC, ETH, XRP, SOL, etc.