Best Alternatives to CortexCloud MCP

SolSigs

Runtime: uvx

Complete Solana on-chain DeFi data layer for AI agents - paid per call in USDC via x402.

Boo X402 MCP

Runtime: npx

Pay-per-call crypto data for AI agents. USDC on Base via x402. No API key.

BridgeNode MCP

Runtime: npx

AI inference via MCP — pay per request with Solana USDC through x402. No API keys.

Engedi

Runtime: npx

93 tools: finance, weather, news, travel, knowledge, SEO. 27 free + 66 paid via USDC x402.

Psychosynth

Runtime: npx

Psychometric data marketplace: Big Five profiles, cognitive biases & behavioral data via x402.

X402 Extract

Runtime: npx

Pay-per-call MCP server. $0.01 USDC extracts schema.org/Product JSON from any URL via x402.

X402 Sms

Runtime: npx

Pay-per-call MCP server. $0.03 USDC sends one transactional SMS to a US phone number via x402.

Agent Wallet

Runtime: npx

Local agent wallet + 900 pay-per-call data APIs — free discovery, x402 USDC, code-level spend caps

FiatDock

Runtime: npx

MCP marketplace: agents pay per call in USDC via x402. Plus Base chain data and a USDC<->bank ramp.

Web tools for AI agents (search, scrape, geocode +8) paid per call in USDC via x402. No API key.

Agentic Endpoints

Runtime: npx

Pay-per-call tools for autonomous agents, settled in USDC on Base via x402.

AgentPay

Runtime: Remote (SSE)

Pay-per-call AI microservices via x402. USDC on Base, no accounts - wallet is auth.