# Perception > Real-time digital asset narrative intelligence for AI assistants and professionals. Perception continuously analyzes 1,000+ curated sources — news, earnings calls, analyst research, regulatory filings, conference keynotes, podcasts, and social media — covering Bitcoin, stablecoins, tokenized finance, and digital assets. Every mention is sentiment-scored, entity-extracted, and trend-detected. ## MCP Server - **URL:** `https://mcp.perception.to/mcp` - **Transport:** Streamable HTTP (POST + GET) - **Auth:** OAuth 2.1 (Claude, ChatGPT, Gemini) or Bearer token - **Free tier:** 5 credits/day, no credit card required ## REST API - **URL:** `https://api.perception.to` - **Auth:** Bearer token (`Authorization: Bearer pcp_...`) - **Endpoints:** /feed, /trends, /intelligence, /sentiment-metrics, /fear-greed-index, /channel-volume, /grouped-data - **Docs:** https://perception.to/api ## Pay-Per-Call for Agents (x402 + L402) Autonomous agents can pay per request for full-text article data — no account, no signup, no API key. Two rails; pick either: **USDC (x402):** - **Endpoint:** `GET https://api.perception.to/feed` - **Protocol:** x402 (HTTP 402). Unauthenticated → payment challenge; pay with any x402 client and retry. - **Settlement:** USDC on Base, $0.05 per call. **Bitcoin / Lightning (L402):** - **Endpoint:** `GET https://lightning-l402-293695725781.us-central1.run.app/feed` - **Protocol:** L402 (HTTP 402 + Lightning). Unauthenticated → invoice; pay it, retry with `Authorization: L402 :`. - **Settlement:** Bitcoin over Lightning, 100 sats per call. ## Key Pages - [Homepage](https://perception.to): Real-time narrative analytics workspace. - [AI Connectors (MCP setup)](https://perception.to/integrations/mcp): Model Context Protocol server configuration instructions. - [REST API Documentation](https://perception.to/api): Developer reference for custom integrations. - [Intelligence Hub](https://perception.to/intelligence): Search and analyze narratives and coverage. - [Prompt Library](https://perception.to/prompts): Pre-built system prompts for crypto research. - [Pricing](https://perception.to/pricing): Platform subscription rates. - [Documentation](https://perception.to/documentation): Getting started tutorials and platform guides. - [App](https://app.perception.to): Perception web application client portal. ## Free Tier Tools (14) 1. **perception_search_mentions** — Search 1,000+ sources by keyword with sentiment, outlet, and date filters 2. **perception_search_companies** — Entity-recognition company mention search (NLP-powered) 3. **perception_get_trends** — AI-extracted narrative trends with signal strength 4. **perception_get_sentiment** — Historical sentiment data by date range 5. **perception_get_market** — Bitcoin price, market cap, volume, and Fear & Greed Index 6. **perception_get_categories** — Trend category distribution 7. **perception_guide** — In-agent onboarding, workflow templates, and role-specific tips 8. **perception_daily_radar** — Daily intelligence briefing. Surfaces anomalies, sentiment shifts, volume spikes, and emerging narratives vs 7-day baseline 9. **perception_narrative_momentum** — Track if a narrative is accelerating or fading. Compares current vs previous period volume, sentiment, and source diversity. Returns momentum score -100 to +100 10. **perception_compare_entities** — Compare 2-5 companies side-by-side in one call. Mention volume, sentiment breakdown, top sources 11. **perception_get_index** — Perception Index V2: outlet-weighted media sentiment index (0-100) with driver sub-indices and divergence signals, updated every 15 minutes 12. **perception_top_mentions** — Media leaderboard: top entities or topics by mention count within a date range or outlet 13. **perception_cohort_sentiment** — Conversation broken down by speaker role (execs, founders, devs, analysts, investors, media, policy, traders) with per-cohort volume and sentiment 14. **perception_get_evadometer** — How directly public-company management answered earnings-call questions, with dodged questions and topic breakdown ## Perception Plan Tools ($249/mo, 2 additional = 16 total) 15. **perception_get_entity_profile** — Complete entity intelligence profile with coverage, analyst data, trends, relationships, and timeline 16. **perception_media_radar** — Outlet-specific coverage analysis ## Intelligence Plan Tools ($499/mo, 15 additional = all 31) 17. **perception_get_analyst_ratings** — Wall Street analyst consensus, price targets, upgrades/downgrades for 70 crypto stocks 18. **perception_get_article** — Full-text article retrieval by URL 19. **perception_search_regulatory** — Search regulatory filings, policy documents, and compliance coverage 20. **perception_save_research** — Save research notes (title, summary, topics, key findings) to persist across sessions. 90-day TTL 21. **perception_recall_research** — Retrieve saved research notes by recency or topic filter 22. **perception_scenario_analysis** — Analyze hypothetical scenarios using historical analogues. Returns sentiment arcs, outlet coverage patterns, and narrative half-life from past comparable events 23. **perception_get_insider_activity** — SEC Form 4 insider trading activity for US-listed companies, in context of media coverage 24. **perception_get_earnings_intelligence** — AI-analyzed earnings calls: management tone (headline signal), executive summary, directness score, notable quotes 25. **perception_get_intelligence_digest** — Daily cross-signal briefing fusing analyst actions, sentiment shifts, volume spikes, earnings events, regulatory mentions, and GitHub activity 26. **perception_search_voices** — Keyword search across earnings transcripts, conference talks, and digital asset podcasts with timestamps 27. **perception_get_brains_corpus** — Chronological Twitter/X post history for any tracked handle 28. **perception_get_divergences** — Entities where media coverage and insider behavior moved in opposite directions over the same window 29. **perception_get_capital_exposure** — Institutional capital picture: 13F holders with QoQ flow, 13D/G owners above 5%, Bitcoin treasury holdings 30. **perception_get_hiring** — Open job postings and hiring posture for a company from its public ATS board 31. **perception_hiring_leaderboard** — Companies ranked by open roles across the tracked universe, by sector and function ## Pricing - **Perception ($249/mo or $199/mo annually):** 14-day free trial (no credit card required). Full platform, 16 MCP tools at 20 credits/day, and a separate 20 REST API calls/day. - **Perception Intelligence ($499/mo or $399/mo annually):** All 31 MCP tools at 100 credits/day (flat 1 credit per call), full REST API, 10 seats, real-time streaming, white-label reports. - **Enterprise:** Custom data licensing, retainers, and high-volume pooled API quotas. Contact sales or book a call at perception.to/book-a-call. ## Full Documentation For complete tool parameters, workflow templates, and setup instructions, see: - [Full Documentation](https://perception.to/llms-full.txt): Detailed MCP parameter specifications and system architecture.