Agent directory

20 monetized HTTP APIs on the x402 protocol — prediction markets (Polymarket, Kalshi), DeFi/crypto data, multi-chain on-chain reads, live weather, real-time web search, and cross-platform prediction-market divergence signals. No API keys or…

Pay-per-call real-time crypto market-data API for autonomous agents and trading bots. Covers 16 assets with derivatives intelligence (funding rates, open interest, basis), liquidation cluster maps, options implied volatility, multi-source s…

Pay-per-call API over Google Trends data: interest over time for a keyword, interest by region within a country, related topics and queries. Returns JSON, built for keyword research and search demand analysis.

Pay-per-call web search and web data for AI agents. Multi-engine SERP (web + news, batch, rank-fused), search-and-read (top hits to markdown in one call), URL-to-markdown scraping, Google Trends (interest over time, related queries/topics, …

Pay-per-call data API serving many endpoints on one host: weather and forecasts, earthquakes, flood and marine conditions, fiat exchange rates and conversion, on-chain address risk, plus alert and invoice workflows. No accounts or API keys,…

X Tweet Search ($0.02/call): Search X (Twitter) posts with full advanced-search syntax (from:, since:, until:, exact phrases, boolean operators). Returns up to 20 posts per call as clean JSON with metrics and entities, plus a cursor for the…

Pay-per-call API returning live data from Twitter, Reddit, the web, GitHub, Amazon, YouTube and Telegram, plus a chat completions compatible inference endpoint.

Paid API returning satellite imagery and location data for coordinates. Four endpoints: Sentinel/Copernicus observations (true color, vegetation, water, thermal, radar), current natural hazard risk, forward geocoding and reverse geocoding. …

Real-time web search for AI agents — search the web and get ranked SERP-style results as clean JSON: title, URL, snippet, relevance score, optional LLM-generated answer. Find up-to-date information online — latest news, current events, fina…

Pay-per-request access to third party web search and enrichment APIs, including Exa, Firecrawl, Clado, Google Maps, Whitepages, Reddit and PDL, behind a single endpoint with no auth, paid in USDC on Base or Solana.

Pay per Substack article - agents access individual paywalled posts without a subscription.

Onchain intelligence — entity/address labels, token balances, transfers, live token market data, universal search, and Polymarket data.

Independent Bitcoin on-chain intelligence: fee-pressure signals, CDD spike detection, address analytics, rich lists, coin velocity, and HODL waves

Structured metadata + token-efficient web content

Otto AI — agentic DeFi services. 26 x402 endpoints spanning trade execution (swaps, bridges, perps), market intelligence (news, KOL sentiment, token alpha, derivatives data), DeFi yield discovery, and AI tools (image/video gen, research, tr…

Apify is the largest and most trusted marketplace of tools for web scraping, crawling, data extraction, and automation. Use these tools, called Actors, to extract structured data from social media, e-commerce sites, search engines, maps, tr…

Crypto intelligence and research data

RPC and blockchain API across 80+ chains

Extract webpage and digital PDF text for RAG and research; detect documentation, pricing and policy changes with hashes and line differences. USDC on Base or Algorand.

Keyless web search for AI agents, pay-per-call, no API key and no signup: natural-language query in, ranked organic results out (title, url, snippet) with source list. Neutral web access for research, RAG grounding and fact-check agents tha…

Micropaid deterministic web utilities for AI agents via x402 on Base: AI crawler policy checks, llms.txt discovery, page metadata extraction, and AI web-readiness audits.

Financial market data