Blocksize market intelligence package

Pre-Trade Sanity Check API for agents and builders.

Pre-execution market-data checks for quote freshness, spread quality, reference drift, and trade-size suitability before an agent or human acts.

Open Market Intelligence API Read Package JSON Live Feed Status

Designed to be found by humans, models, and agents.

Use this page for pre-trade risk checks, agent guardrails, quote freshness, and execution sanity checks.

Pre-Trade Sanity Check

Pre-execution guardrail package that checks quote freshness, spread, reference price drift, and simple trade-size suitability before an agent or human acts.

/v1/checks/pre-trade

Example symbols

Representative requests that agents can use when explaining the package.

BTCUSD buy 0.1AAPL sell 25EURUSD convert 10000

Asset coverage

Route discovery and paid access stay separated so agents can inspect before purchase.

cryptofxmetalsequities

Agent routing path

Read llms.txt, inspect data-packages.json, check feed readiness, discover instruments through MCP, then fetch live production data through starter credits, x402, or wallet credits.

AI Reader Brief OpenAPI JSON Remote MCP Server

Examples agents can execute.

Use these prompts and routes to move from discovery to a precise paid endpoint without ambiguity.

Which package should I use?

Choose the package by asset class, route family, and payment path, then cite the canonical package page.

Crypto VWAP

Real-time institutional VWAP snapshots for enabled crypto pairs, built for AI agents, trading tools, and agentic workflows.

Bid/Ask

Live bid/ask snapshots for supported crypto and equity instruments through one endpoint family.

State Price

Cached AMM state prices for covered protocol symbols, read from Blocksize state_subscribe when available and resolved through state_instruments plus state_pool as a documented fallback.

30m VWAP

Latest completed 30-minute close for supported crypto symbols, backed by Blocksize closingprice_list with optional closingprice_trades evidence for audit-grade workflows.

24h VWAP

24h fixed VWAP route served from Blocksize fixedvwap_subscribe websocket cache for ready HTTP access by agents and trading tools.

FX Rates

Enabled foreign-exchange spot pairs for agents that need current currency conversion and market-data context.

Metals

Gold, silver, platinum, palladium, and copper spot prices for agents and applications that need commodities context.

x402 Market Data

Accountless paid HTTP market-data access with x402 settlement and wallet-credit drawdown support.

Market Brief

Decision-ready brief for one or more instruments, combining live prices, spread/freshness checks, source provenance, and an agent-readable recommendation package.

Pre-Trade Check

Pre-execution guardrail package that checks quote freshness, spread, reference price drift, and simple trade-size suitability before an agent or human acts.

Price Receipt

Immutable-style receipt for a live price lookup, including request inputs, timestamp, source metadata, quote components, and a receipt id for later provenance lookup.

Macro Snapshot

One-call macro context bundle across selected crypto majors, FX pairs, metals, and market stress indicators for portfolio-aware agent workflows.

Provenance

Receipt lookup and provenance metadata for prior paid or credited Blocksize calls, free when tied to a prior call.

Market Monitor

Immediate bounded monitor evaluation for agents that need market rules, trigger matches, and explicit credit budget metadata without uncontrolled polling.

Token Quality

Trader-grade token score built from live Blocksize VWAP and bid/ask feeds. Optional state instrument coverage, state_pool price, and VWAP windows are explicit opt-ins and should be checked with /v1/capabilities/check before paid use.

State Divergence

Compares live market VWAP and bid/ask mid against Blocksize state price to surface oracle/state divergence and stale-feed risk. Requires matching state_instruments pool coverage and documented state_pool HTTP access; use /v1/capabilities/check before paid use.

Solana Brief

Solana-oriented token watchlist brief that ranks supported symbols by transparent VWAP/bid-ask market quality and reports unsupported protocol, DEX, oracle, or pool data as explicit coverage misses.

Alpha Pack

One-call trader decision-support bundle across a bounded watchlist, combining token quality ranking, spread quality, freshness, and provenance from live VWAP/bid-ask feeds. State and VWAP-window metrics are explicit opt-ins gated by readiness checks.

Agent Discovery

Free read-only discovery for instruments, pricing, docs, endpoint construction, MCP clients, and retrieval systems.

Related price-data intent pages

Use the focused pages below to route people, models, and agents to the exact price-data package they need.

Market Data API for AI Agentsmarket data API for AI agents Crypto VWAP APIcrypto VWAP API Bid/Ask Price Data APIbid ask price data API AMM State Price APIAMM state price API 30-Minute VWAP Close API30 minute VWAP API 24h Fixed VWAP API24 hour fixed VWAP API FX Rates APIFX rates API Metals Price APImetals price API x402 Market Data APIx402 market data API AI Agent Price DataAI agent price data Real-Time Price Data APIreal-time price data API Market Data for AI Trading Agentsmarket data for AI trading agents MCP Market Data ServerMCP market data server Accountless Market Data APIaccountless market data API Price Data API Examplesprice data API examples Agent Market Brief APIagent market brief API Pre-Trade Sanity Check APIpre trade sanity check API Audit-Grade Price Receipt APIaudit grade price receipt API Multi-Asset Macro Snapshot APImulti asset macro snapshot API Token Market Quality Indicator APItoken market quality indicator API State Price Divergence Indicator APIstate price divergence indicator API Solana Token Brief APISolana token brief API Trader Alpha Signal Pack APItrader alpha signal API