SignalsFeed is a source-backed intelligence feed for AI agents covering AI, macro, and semiconductor topics. Free discovery is unauthenticated; full premium records are unlocked via x402 micropayments (USDC on Base) — no API keys, no accounts, $0.01 per call returns up to 20 records. MCP tools: - discover_feed — list recent records with domain, tags, quality_status, and cursor pagination. Identifies premium-ready IDs. - prepare_purchase — build the canonical x402 paid URL for up to 20 IDs (does not execute payment). Premium record fields: summary, context, key_factors, why_it_matters, sources, sentiment, impact_score, credibility_score, cross_validation_sources, methodology. Endpoints: - MCP: https://signalsfeed.com/mcp - Free discovery (HTTP): https://signalsfeed.com/api/v1/feed?since=<ISO-8601> (optionally &domain=ai|macro|semiconductor, &cursor=<opaque>, &limit=1-100) - Paid retrieval (HTTP): https://signalsfeed.com/api/v1/feed?ids=<uuid>,... with X-PAYMENT header - Discovery hint: GET https://signalsfeed.com/api/v1/feed (bare) returns 402 with the full agent guide and a pre-built free-discovery URL
How to connect
https://server.smithery.ai/signalsfeed/signalsfeed/mcpcurl -X POST https://server.smithery.ai/signalsfeed/signalsfeed/mcp \
-H 'Content-Type: application/json' \
-H 'Accept: application/json, text/event-stream' \
-d '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{}}'