The real catalog of tools for AI agents

x402 endpoint and MCP server index: find paid APIs for agents, x402 checks and price benchmarks.

Curated, trust-first index of vetted MCP servers — scored tiers, monthly re-verified. Read-only.

Free MCP server: index a repo's files into the x402-codesearch Worker's search index.

Contract and agent-package scans, phishing URL and OFAC checks, domain and header checks.

Trending/new/changed MCP servers: a liveness-probed freshness index + x402-paid change-data API

MCP server for no-payment x402 surface triage, 402 Index health checks, and paid review handoff.

Text tools: stats, language, case, lines, replace, extract, keywords, summary, sentiment, diff.

Pay-per-call agent tools: PDF, OCR, translation, news search, prediction markets, web, chain reads.

Search 13,000+ x402-enabled APIs from your AI agent. Powered by x402search.xyz

Web search for agents: page to Markdown, screenshots, news search, metadata, sitemaps and RDAP.

chaos-index MCP — wraps StupidAPIs (keyless — no credential needed)

Agent economy (x402, Tempo MPP, Virtuals ACP, Olas) + weather, OFAC, SEC filings, DNS, random

Single-connection meta-router indexing 500+ MCP servers & A2A tools with 85% token compression and

EVM and Solana reads: balances, tokens, eth_call, logs, receipts, gas, blocks, transactions, ENS.

Capability registry for the agentic economy. Semantic search over verified MCP server listings.

SEC XBRL financials, company lookup, Treasury yields, ECB FX, token prices, perp funding spreads.

Cleared Check before pay: lookup_merchant, cleared_check, route_gateway for x402 agents.

Image toolkit: resize, convert, compress, crop, metadata, hashes, favicons, OCR, QR codes, barcodes.

Cloud GPU prices per hour, plus developer helpers: hash, HMAC, JWT, IDs, JSON, cron, time zones.

Cleared Check before pay: lookup_merchant, cleared_check, route_gateway for x402 agents.