# Umbra

> Market-event intelligence for crypto and tokenized finance. Curated spread, funding and price-movement events for people (Umbra Workspace) and machines (Umbrafeed).

Umbra provides monitoring and data only: it does not hold funds, connect to exchange accounts or execute orders, and nothing it publishes is investment advice.

## Agent mode

Every page on this site exists twice. What a browser renders is human mode. Agent mode is the same content as plain markdown — no navigation, no scripts, a fraction of the tokens. Human mode is the default; nothing is hidden from anyone, and no request is redirected based on who is asking.

Three ways to read a page in agent mode, cheapest first:

1. Send `Accept: text/markdown` on the ordinary url. The markdown comes back at that same address — no redirect, no extra request.
2. Swap the path for its twin under `/agents`: https://umbrafeed.com/en/pricing becomes https://umbrafeed.com/agents/pricing.md. Section pages map to their section, so `/en/markets/binance` becomes `/agents/market/binance.md` and `/en/blog/<slug>` becomes `/agents/research/<slug>.md`.
3. Read the `Link` response header, or the `<link rel="alternate" type="text/markdown">` element in the page head. Both name the twin of that exact page, and a `rel="describedby"` link points back to this file.

Every twin opens with YAML front matter carrying its canonical url, publisher and review date, so a passage lifted out of it keeps its source.

- Index of every page in agent mode: https://umbrafeed.com/agents — markdown, read this first.
- Human-readable explanation of both modes: https://umbrafeed.com/for-agents
- Whole corpus inlined in one file: https://umbrafeed.com/llms-full.txt
- Umbrafeed API documentation, mirrored the same way: https://docs.umbrafeed.com/llms.txt

### Live tool access

- Knowledge MCP (free, no auth): https://umbrafeed.com/mcp — tools `umbra_overview`, `umbra_search`, `umbra_get_page`. Answers questions about the platform.
- API-docs MCP (free, no auth): https://docs.umbrafeed.com/mcp — tools `umbrafeed_overview`, `umbrafeed_search_docs`, `umbrafeed_get_doc`, `umbrafeed_get_endpoint`. Answers integration questions.
- Market-data MCP (authenticated, Builder plan and up): https://api.umbrafeed.com/mcp — live events, not documentation.

## Key facts

Verified 2026-08-31.

- **CEX venues monitored**: 12 — Binance, Aster, BingX, Gate, OKX, Bitget, Hyperliquid, HTX, KuCoin, Bybit, Phemex, MEXC (source: https://umbrafeed.com/en/markets)
- **DEX chains monitored**: 4 — Ethereum, BSC, Base, Solana (source: https://umbrafeed.com/en/markets)
- **Event families**: 3 — spread (cross-venue dislocation), funding (rate divergence), splash (price spike) (source: https://umbrafeed.com/en/products)
- **Workspace plans**: Free, Trader $19/month, Pro $29/month (source: https://umbrafeed.com/en/pricing)
- **Umbrafeed (machine) plans**: Free $0, Builder $19/month, Pro $49/month, Commercial from $149/month (negotiated); x402 is a published offer with no deployed route (source: https://umbrafeed.com/en/pricing)
- **Spread OPEN delay by tier**: 60 seconds on Free, 30 seconds on Builder, live on Pro (source: https://docs.umbrafeed.com/access-tiers)
- **REST rate limits by tier**: 60 req/min on Free, 600 on Builder, 3,000 on Pro (source: https://docs.umbrafeed.com/rate-limits)
- **Retained history by tier**: 1 hour on Free, 1 week on Builder, deeper on Pro (source: https://docs.umbrafeed.com/access-tiers)
- **Machine transports**: REST (/api/v1/data), MCP (/mcp), authenticated WebSocket, signed webhooks (source: https://docs.umbrafeed.com/live-api)
- **Order execution**: None. Umbra holds no funds, connects to no exchange accounts and places no orders (source: https://umbrafeed.com/en/legal/risk-disclosure)

## Overview

- [Umbra — platform overview](https://umbrafeed.com/en): What Umbra is, its two products, the three event families, venue coverage and the machine-access tiers. Monitoring and data only — no order execution.
- [Contact](https://umbrafeed.com/en/contact): How to reach Umbra for support, commercial terms or press.

## Products

- [Umbra Workspace](https://umbrafeed.com/en/products): The human-facing monitoring product: comparison charts, saved layouts, configurable filters and alerts across Free, Trader and Pro plans.
- [Umbrafeed — machine data product](https://umbrafeed.com/en/umbrafeed): The B2B data product: curated market events over REST, MCP, authenticated WebSocket and signed webhooks, on Free, Builder and Pro self-serve tiers.
- [Spread Alerts](https://umbrafeed.com/en/products#spread-alerts): Cross-exchange spread detection in real time
- [Price Spike Alerts](https://umbrafeed.com/en/products#price-spike-alerts): Detect sharp price movements in real time
- [Funding Rate Alerts](https://umbrafeed.com/en/products#funding-rate-alerts): Funding-rate differences across supported venues
- [Market Data](https://umbrafeed.com/en/products#market-data): Unified multi-exchange data in a single feed

## Pricing

- [Pricing — Workspace and Umbrafeed plans](https://umbrafeed.com/en/pricing): The two separate plan ladders: Umbra Workspace (Free / Trader $19 / Pro $29) and Umbrafeed (Free / Builder $19 / Pro $49), plus on-demand Commercial.

## Concepts and guides

- [What Is Crypto Arbitrage? Types, Risks & How It Works in 2026](https://umbrafeed.com/en/learn/what-is-crypto-arbitrage): Crypto arbitrage is based on price differences across exchanges. Learn about cross-exchange, triangular, and DEX arbitrage strategies, legality, profitability, and tools.
- [How Do Crypto Trading Alerts Work? Types, Platforms & Setup Guide](https://umbrafeed.com/en/learn/how-do-crypto-trading-alerts-work): Crypto trading alerts notify you of market opportunities in real time. Learn how price alerts, spread alerts, and spike detection work across different platforms.
- [What Is Funding Rate Arbitrage? How It Works, Risks & Strategies](https://umbrafeed.com/en/learn/what-is-funding-rate-arbitrage): Funding rate arbitrage earns yield from funding rate differences across exchanges. Learn about cross-exchange and spot-hedge strategies, settlement schedules, and risks.
- [How to Detect Crypto Pump and Dump Schemes: Signs, Tools & Protection](https://umbrafeed.com/en/learn/how-to-detect-pump-and-dump-crypto): Learn how to detect crypto pump and dump schemes using price spike detection, volume analysis, and real-time monitoring tools. Protect yourself from manipulation.
- [How Crypto Arbitrage Works in 2026: Margins, Costs & Structural Constraints](https://umbrafeed.com/en/learn/is-crypto-arbitrage-profitable): Educational overview of crypto arbitrage mechanics in 2026: how cross-exchange price gaps form, costs to account for, capital considerations, and structural constraints. Informational content only — not investment advice and not a promise of returns.
- [What Is a Crypto Spread? Bid-Ask, Cross-Exchange & How to Reduce It](https://umbrafeed.com/en/learn/what-is-a-crypto-spread): Understand crypto trading spreads: bid-ask spread, cross-exchange spread, factors affecting spreads, and strategies to minimize spread costs across exchanges.
- [Best Crypto Arbitrage Scanners in 2026: Features, Pricing & Comparison](https://umbrafeed.com/en/learn/best-crypto-arbitrage-scanner-2026): Compare the best crypto arbitrage scanners in 2026. Umbra, ArbitrageScanner, SpreadScan, CoinArbitrage, and KoinKnight reviewed with features and pricing.
- [Crypto Funding Rates Explained: How They Work, Where to Check & Trading Strategies](https://umbrafeed.com/en/learn/crypto-funding-rate-explained): Complete guide to crypto funding rates. How perpetual futures funding works, positive vs negative rates, settlement intervals, and trading strategies based on funding rates.

## Research

- [Cross-Exchange Arbitrage: How Crypto Price Gaps Create Opportunities](https://umbrafeed.com/en/blog/cross-exchange-crypto-arbitrage): Price inefficiencies between exchanges are a structural feature of crypto markets. Here's how they form, why they persist, and how to monitor them.
- [Spread Trading in Crypto: Basis, Funding Rates, and Market-Neutral Strategies](https://umbrafeed.com/en/blog/understanding-spread-trading-crypto): A deep dive into basis trades, funding rate arbitrage, and the mechanics behind market-neutral strategies in cryptocurrency derivatives.
- [Real-Time Market Surveillance: Why Event Infrastructure Matters](https://umbrafeed.com/en/blog/real-time-market-surveillance-crypto): The infrastructure behind real-time crypto market monitoring: ingestion, normalization, event lifecycles and sub-second delivery.
- [Price Spike Detection: How to Catch Pumps and Dumps in Real Time](https://umbrafeed.com/en/blog/detecting-price-spikes-and-dumps): What causes flash pumps and sudden dumps, how detection systems work, and why sliding time windows outperform fixed candle analysis.
- [CEX vs DEX: Where the Best Arbitrage Opportunities Hide](https://umbrafeed.com/en/blog/cex-vs-dex-arbitrage): Centralized and decentralized exchanges price assets differently. Those structural differences create some of the widest and most persistent spreads in crypto.
- [Funding Rate Alerts: Catching Divergences Across Binance, Bybit, and Hyperliquid](https://umbrafeed.com/en/blog/funding-rate-alerts-guide): Funding rates diverge across venues every 8 hours. Real-time alerts turn those gaps into market-neutral yield. How the mechanism works, why rates disagree, and what to watch.

## Venue coverage

- [Binance coverage](https://umbrafeed.com/en/markets/binance): The most liquid exchange on the planet
- [Bybit coverage](https://umbrafeed.com/en/markets/bybit): Derivatives powerhouse with aggressive funding rates
- [MEXC coverage](https://umbrafeed.com/en/markets/mexc): First to list, first to move
- [Gate.io coverage](https://umbrafeed.com/en/markets/gate-io): The long tail of crypto, listed and tradable
- [BingX coverage](https://umbrafeed.com/en/markets/bingx): Social trading meets cross-exchange inefficiency
- [Bitget coverage](https://umbrafeed.com/en/markets/bitget): Copy trading at scale with deep derivatives liquidity
- [OKX coverage](https://umbrafeed.com/en/markets/okx): Tier-1 derivatives venue with one of the deepest perp books
- [KuCoin coverage](https://umbrafeed.com/en/markets/kucoin): Wide altcoin coverage with active mid-cap derivatives market
- [HTX coverage](https://umbrafeed.com/en/markets/htx): Long-established venue with deep altcoin spot and perp books
- [Phemex coverage](https://umbrafeed.com/en/markets/phemex): Low-latency perp venue with sub-millisecond matching
- [Hyperliquid coverage](https://umbrafeed.com/en/markets/hyperliquid): On-chain perpetuals with CEX-grade performance
- [Aster coverage](https://umbrafeed.com/en/markets/aster): Next-gen decentralized derivatives
- [Ethereum DEX coverage](https://umbrafeed.com/en/markets/ethereum-dex): Uniswap, Sushiswap, and the deepest DeFi liquidity
- [BSC DEX coverage](https://umbrafeed.com/en/markets/bsc-dex): PancakeSwap and high-throughput BNB Chain trading
- [Solana DEX coverage](https://umbrafeed.com/en/markets/solana-dex): Raydium, Jupiter, and sub-second DeFi execution
- [Base DEX coverage](https://umbrafeed.com/en/markets/base-dex): Coinbase's L2 with growing DeFi liquidity

## Legal

- [Terms of Service](https://umbrafeed.com/en/legal/terms): The contract governing use of Umbra Workspace and Umbrafeed.
- [Privacy Policy](https://umbrafeed.com/en/legal/privacy): What personal data Umbra collects, why, and how it is handled.
- [Cookie Policy](https://umbrafeed.com/en/legal/cookies): Which cookies the site sets and how consent is managed.
- [Risk Disclosure](https://umbrafeed.com/en/legal/risk-disclosure): The trading-risk disclosure: Umbra publishes market observations, not advice, and past events do not imply future returns.
- [Billing Terms](https://umbrafeed.com/en/legal/billing): Subscription billing, renewals, refunds and plan changes.
- [Legal Notice](https://umbrafeed.com/en/legal/notice): Company identification and publication details.

## Developer documentation

- [Developers](https://docs.umbrafeed.com): Entry point for building on Umbra: where the API, MCP server, WebSocket and webhook surfaces live and how to get a key.

## Notes for agents

- Content is published in English, French and Russian; `/en/`, `/fr/` and `/ru/` prefixes serve the same pages.
- Umbra Workspace and Umbrafeed are priced on two separate ladders. Do not quote one product's plan names for the other.
- Event freshness is tier-gated. Any latency or delay figure only holds for the tier it is stated on.
- Coverage counts (venues, chains, pairs) change; cite the venue-coverage pages rather than a remembered number.