"Web search services that don't require an API key" matching MCP connectors:

500+ pay-per-call tools + skill packs. USDC + USDG on 12 chains, or free via proof-of-work.

Neutral freight reference + validation layer for AI agents: ADR, HS, UN/LOCODE, freight math

Host-owned vacation-rental direct booking via VRP. Signed offers, 0% commission. Not an OTA.

Exit-cost estimates, depth concentration, liquidity tiers, and sealed records; no commodity futures.

Read-only breach intel, full history 2007-today: reports THAT an org was breached, never the data.

SSRF-safe web intelligence: 4 outcomes, 43 paid x402 tools, 3 free tools and a URL preview.

US funding-stress warning with construction-PIT evidence limits and explicit eligibility flags.

Enumerate and inspect PubFi capabilities, then execute an exact selected route.

Agent intake desk for property renovation. Read only, CORS open, fail closed, receipts recompute.

Entity resolution — data mapping, SDK code generation, docs search, and error troubleshooting

Bank and lender monitoring with historical-evidence limits and eligibility flags beside every claim.

Hosted MCP memory: save sessions/decisions once, search from Claude, Cursor, ChatGPT. EU-hosted FTS.

Live internet-censorship signals and tamper-evident, pre-registered, hash-chained AI model evals.

Free Vedic astrology: panchang, kundali, transits, matching, doshas, eclipses, numerology

Savvly MCP: query fund data, model projections, and compare against alternative retirement products.

APILayer MCP Adapter turns APILayer's REST APIs into Model Context Protocol tools so any MCP-compatible client can call them directly in conversation. The first release ships ipstack IP geolocation and security lookups (single IP, caller's IP, and bulk). Additional APILayer services are added by registering them in a single config file, so the catalog grows without client-side changes.

Research-only MCP server that turns your AI into a quant research desk: describe any strategy in plain English, get a real backtest with institutional metrics and a verifiable audit bundle. No trades and your AI never writes the code, so it can't fool the numbers.

Check if a task runs locally vs cloud. Save money on calls that don't need cloud inference.

Government tender search for AI agents. UK, EU and US procurement opportunities.

Read-only Amazon SES observability: search events, inspect bounces, pull delivery stats.