"Web search without requiring an API key" matching MCP connectors:

SSRF-safe web intelligence: 32 paid x402 tools, 3 free tools, buyer prompt and guide.

Read-only MVR preflight for trust, permission, evidence gaps, and African market-entry readiness.

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

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

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

Reference data for prediction markets: graded resolution clarity, cross-venue links, provenance.

400+ pay-per-call tools + 100 skill packs. USDC + USDG on 10 chains, or free via PoW.

The Brain Layer for AI Trading Agents — quant calls + cross-venue arb across perp venues via MCP.

Live exit costs by venue, depth concentration, and a sealed calls record that keeps its misses.

AIOProductOS: revenue, feedback, work and analytics on one customer record. 71 tools, 3 apps.

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

Read-only MCP server for the OrchestKit docs: full-text search + Markdown fetch. No auth.

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

Mocap, rehab biomechanics, threat intel, fleet vision. 21 MCP tools, 10 free. x402/USDC paid.

Search, preview, install community Codex pet packs, and discover the pet request flow.

Open scientific and engineering knowledge for AI agents: search, evidence, document publishing.

Agentic scheduling & booking for field service: availability, jobs, customers, crews, fleet.

DXF drawings for AI agents: structured facts, PNG renders, and an interactive in-chat viewer.

Publish and manage existing HTML presentations from an MCP-capable Agent.

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