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Order Book Depth API
Uniswap V3 liquidity depth analysis -- price impact at 1/2/5/10% levels. Slippage estimation pre-trade. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.
Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.
Quickstart -- MCP
Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):
{
"mcpServers": {
"orderbook-depth": {
"url": "https://orderbook-depth.api.klymax402.com/mcp"
}
}
}Quickstart -- HTTP (x402)
curl "https://orderbook-depth.api.klymax402.com/api/depth?pool=..."
# -> 402 Payment Required, with an x402 payment challenge in the response bodyAny x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.
Tools
| Tool | Method | Path | Price | Description |
|---|---|---|---|---|
dex_analyze_orderbook_depth | GET | /api/depth | $0.012 | Analyze orderbook depth for a Uniswap V3 pool |
dex_analyze_orderbook_depth | POST | /api/depth | $0.012 | Analyze orderbook depth for a Uniswap V3 pool (POST variant) |
dex_analyze_orderbook_depth
Use this when you need to analyze liquidity depth of a Uniswap V3 pool before a large trade. Returns depth analysis in JSON.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
pool | string | yes | Uniswap V3 pool address (0x...) |
chain | string | no | Chain name: base, ethereum (default: base) |
Returns
currentPrice-- current pool pricedepth1pct-- USD liquidity available within 1% price impactdepth2pct-- USD liquidity available within 2% price impactdepth5pct-- USD liquidity available within 5% price impactdepth10pct-- USD liquidity available within 10% price impacttotalLiquidity-- total pool liquidity in USDfeeTier-- pool fee tier (0.01%, 0.05%, 0.3%, 1%)token0/token1-- pool token pair symbols
Example response:
{"currentPrice":3128.50,"depth1pct":850000,"depth2pct":2100000,"depth5pct":5400000,"depth10pct":9800000,"totalLiquidity":15200000,"feeTier":"0.3%","token0":"USDC","token1":"WETH"}When to use: executing large on-chain trades to estimate slippage and determine optimal trade size. Essential for MEV-aware agents and OTC sizing.
Not for: swap quotes (use dex_get_swap_quote), token safety (use token_check_safety), token holders (use token_get_holder_analysis).
dex_analyze_orderbook_depth
Use this when you need to analyze liquidity depth of a Uniswap V3 pool before a large trade. Returns depth analysis in JSON. POST variant of dex_analyze_orderbook_depth -- same params passed as JSON body instead of query string.
Parameters
| Name | Type | Required | Description |
|---|---|---|---|
pool | string | yes | Uniswap V3 pool address (0x...) |
chain | string | no | Chain name: base, ethereum (default: base) |
Returns
currentPrice-- current pool pricedepth1pct-- USD liquidity available within 1% price impactdepth2pct-- USD liquidity available within 2% price impactdepth5pct-- USD liquidity available within 5% price impactdepth10pct-- USD liquidity available within 10% price impacttotalLiquidity-- total pool liquidity in USDfeeTier-- pool fee tier (0.01%, 0.05%, 0.3%, 1%)token0/token1-- pool token pair symbols
Example response:
{"currentPrice":3128.50,"depth1pct":850000,"depth2pct":2100000,"depth5pct":5400000,"depth10pct":9800000,"totalLiquidity":15200000,"feeTier":"0.3%","token0":"USDC","token1":"WETH"}When to use: executing large on-chain trades to estimate slippage and determine optimal trade size. Essential for MEV-aware agents and OTC sizing.
Not for: swap quotes (use dex_get_swap_quote), token safety (use token_check_safety), token holders (use token_get_holder_analysis).
Example agent prompts
- "Analyze liquidity depth of a Uniswap V3 pool before a large trade"
- "Analyze liquidity depth of a Uniswap V3 pool before a large trade"
Payment
- Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
- Network: Base L2 (
eip155:8453) - Asset: USDC
- Facilitator: Coinbase CDP (primary), PayAI (fallback)
- Also reachable via ATXP (OAuth-wrapped x402, RFC 9728 protected-resource metadata)
Part of klymax402
100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
License
MIT