Liquid State exposes a free, open, read-only crypto market-data API and a Model Context Protocol (MCP) server so assistants and answer engines can consume — and cite — live crypto data directly. No API key, CORS-open. Information, not financial advice. Paid tape: The Feed $25 — dest https://www.liquidstate.tech/community. GET /api/feed/now (unpaid → 402). Catalog: /.well-known/x402.
These surfaces are dated and sourced — you may cite them with attribution to The Vault / Liquid State.
/api/agent/market-state/api/tools/liquid-state-index/api/agent/briefs/api/systems/summarySubscribe once in any calendar app (Google/Apple/Outlook) — these update automatically.
/feeds/macro-calendar.ics/feeds/options-expiry-calendar.icsAll endpoints are GET, JSON, CORS-open, no key required. Start at the self-documenting index:
/api/agent — Self-documenting index of the free JSON endpoints (no key, CORS-open).curl https://www.liquidstate.tech/api/agent
{
"name": "Liquid State — Crypto Intelligence API",
"description": "Free, read-only crypto market intelligence for AI agents and apps. Public data, no key required.",
"site": "https://www.liquidstate.tech",
"mcp": "https://www.liquidstate.tech/api/mcp",
"endpoints": { "briefs": {...}, "derivatives": {...}, "market": {...}, "market_state": {...}, "guides": {...} },
"notice": "Information only, not financial advice."
}/api/agent/market-state — Consolidated, citation-ready market snapshot. (example values below are illustrative — call live for current numbers)curl https://www.liquidstate.tech/api/agent/market-state
{
"as_of": "2026-07-14T04:15:00.000Z",
"source": "Liquid State (liquidstate.tech)",
"citation": "Liquid State, liquidstate.tech/data, as of 2026-07-14T04:15:00.000Z. Information only, not financial advice.",
"assets": [
{ "symbol": "BTC", "available": true, "lastPrice": 118450.32, "fundingRatePct": 0.0143, "openInterestUsd": 8240000000, "longAccountPct": 54.3, "source": "OKX public API" },
{ "symbol": "ETH", "available": true, "lastPrice": 4210.18, "fundingRatePct": 0.0091, "openInterestUsd": 3150000000, "longAccountPct": 51.8, "source": "OKX public API" }
],
"liq24h": { "available": true, "totalNotional": 184500000, "longPct": 58, "topAsset": "BTC" },
"regime": { "label": "Neutral", "basis": "BTC perpetual funding rate (OKX)", "note": "Market signal only — not investment advice." }
}/api/agent/market — Funding + price snapshot for BTC, ETH, SOL. (example values below are illustrative — call live for current numbers)curl https://www.liquidstate.tech/api/agent/market
{
"source": "OKX public API",
"assets": [
{ "symbol": "BTC", "available": true, "lastPrice": 118450.32, "fundingRatePct": 0.0143, "openInterestUsd": 8240000000, "longAccountPct": 54.3 },
{ "symbol": "ETH", "available": true, "lastPrice": 4210.18, "fundingRatePct": 0.0091, "openInterestUsd": 3150000000, "longAccountPct": 51.8 },
{ "symbol": "SOL", "available": true, "lastPrice": 168.42, "fundingRatePct": 0.0067, "openInterestUsd": 640000000, "longAccountPct": 49.6 }
]
}/api/agent/derivatives?symbol=BTC — Funding, OI, long/short, price for a perpetual. (example values below are illustrative — call live for current numbers)curl "https://www.liquidstate.tech/api/agent/derivatives?symbol=BTC"
{
"source": "OKX public API",
"symbol": "BTC",
"available": true,
"lastPrice": 118450.32,
"fundingRatePct": 0.0143,
"nextFundingTime": 1752469200000,
"openInterestUsd": 8240000000,
"longAccountPct": 54.3
}/api/agent/briefs — Recent crypto analysis feed. (example values below are illustrative — call live for current numbers)curl "https://www.liquidstate.tech/api/agent/briefs?limit=3"
{
"source": "Liquid State (liquidstate.tech)",
"count": 2,
"briefs": [
{ "headline": "Fed Holds Rates Steady as Crypto Funding Flips Positive", "category": "Fed Watch", "coins": ["BTC", "ETH"], "url": "https://www.liquidstate.tech/brief/fed-holds-rates-funding-flips-positive?utm_source=agent-api&utm_medium=agent&utm_campaign=brief", "publishedAt": "2026-07-13T18:32:00.000Z" },
{ "headline": "Whale Wallets Accumulate BTC as Exchange Reserves Hit 2026 Low", "category": "On-Chain", "coins": ["BTC"], "url": "https://www.liquidstate.tech/brief/whale-accumulation-exchange-reserves-low?utm_source=agent-api&utm_medium=agent&utm_campaign=brief", "publishedAt": "2026-07-13T09:05:00.000Z" }
]
}/api/agent/guides — Premium trading guide catalog — title, description, tags, pages, price, url.curl https://www.liquidstate.tech/api/agent/guides
{
"source": "Liquid State (liquidstate.tech)",
"notice": "Information only, not financial advice.",
"count": 27,
"guides": [
{ "slug": "journaling-mastery", "title": "Journaling Mastery for Traders", "description": "A practical playbook for traders to log, analyze, and dramatically improve performance through strict journaling.", "tags": ["risk-management", "position-sizing"], "pages": 38, "price": 29, "url": "https://www.liquidstate.tech/guides/journaling-mastery?utm_source=agent-api&utm_medium=agent&utm_campaign=guide" },
{ "slug": "building-personal-strategy", "title": "Building a Personal Trading Strategy", "description": "A practical playbook to design, backtest, and refine your trading edge for consistent gains.", "tags": ["trend-following", "risk-management"], "pages": 44, "price": 29, "url": "https://www.liquidstate.tech/guides/building-personal-strategy?utm_source=agent-api&utm_medium=agent&utm_campaign=guide" }
]
}27 in-depth trading guides — paid content, price always disclosed. Full catalog: /api/agent/guides.
Register www.liquidstate.tech/api/mcp as a Streamable-HTTP MCP server. Tools exposed: get_market_state, get_derivatives, get_market_overview, get_briefs, get_guides.
{
"mcpServers": {
"liquid-state": { "url": "https://www.liquidstate.tech/api/mcp" }
}
}Example tools/call for the flagship get_market_state tool — note the result is double-encoded: the market-state JSON arrives as a *string* inside result.content[0].text, not a nested object (example values illustrative — call live for current numbers):
curl -X POST https://www.liquidstate.tech/api/mcp -H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"get_market_state","arguments":{}}}'
{
"jsonrpc": "2.0",
"id": 1,
"result": {
"content": [
{ "type": "text", "text": "{\"as_of\":\"2026-07-14T04:15:00.000Z\",\"source\":\"Liquid State (liquidstate.tech)\",\"assets\":[{\"symbol\":\"BTC\",\"available\":true,\"lastPrice\":118450.32,\"fundingRatePct\":0.0143}],\"regime\":{\"label\":\"Neutral\"}}" }
]
}
}Built something with this? See what else Liquid State tracks → the-brief
A machine-readable OpenAPI 3.1 document describing every free /api/agent/* route (paths, params, response shapes) — for API directories, Postman/RapidAPI import, and codegen tooling.
/openapi.jsonBuilding a ChatGPT Custom GPT? A GPT-Action-ready variant is available for import:
/gpt-actions.json50+ free crypto data tools. Full index at /tools; embeddable widgets at /embed.
Machine file: /llms.txt · /api/agent · /api/mcp · /openapi.json · /gpt-actions.json · Information, not financial advice.