Uniswap pre-trade & flow

Three x402 endpoints for acting on Uniswap data, not just reading it. Each answers a question a raw subgraph query leaves you to assemble yourself.

What you get

Endpoint	Cost	Returns
`POST /uniswap/pretrade`	$0.02	Real liquidity, deepest venue, honeypot-flow flags, volume trend — the checks worth running before sizing a trade
`POST /uniswap/basis`	$0.05	Uniswap spot vs Hyperliquid perp basis. Cross-venue JOIN neither venue’s API can return
`POST /uniswap/traders`	$0.02	Per-wallet flow: who is accumulating, who is distributing

Per-call payment in USDC on Base via x402.

Why not just query the subgraph

You can, and for many questions you should — the subgraph is public and Graph Advocate will happily route you to it for free via POST /route. These endpoints exist for the questions where the raw data is the input, not the answer:

Pre-trade needs pool depth across fee tiers and versions, then a judgment about which venue is actually deepest for your size. The anti-TVL trap matters here: high TVL in a pool you cannot trade through is not liquidity.
Basis requires a second venue entirely. Uniswap’s subgraph has no idea what the Hyperliquid perp is priced at.
Traders needs per-wallet swap aggregation and a directional call on each one.

Sample request

curl -X POST 'https://graphadvocate.com/uniswap/pretrade' \
  -H 'Content-Type: application/json' \
  -d '{"token": "WETH", "chain": "ethereum"}'

Prefer an MCP server?

graph-uniswap-mcp gives the same underlying data as tools in your agent, free, with your own Graph API key:

GRAPH_API_KEY=your_key npx -y graph-uniswap-mcp

Eight tools across 13 subgraphs — Uniswap V2, V3 and V4 on Ethereum, Base, Arbitrum, Polygon, Optimism and BSC. Get a free key at thegraph.com/studio. The MCP is the right choice when you want to explore. The paid endpoints are the right choice when you want a derived answer — the basis JOIN in particular has no MCP equivalent, because it spans two venues.

Chains

ethereum, base, arbitrum, polygon, optimism, bsc. Version selection is automatic; pass version to pin one.

Getting started

Routing

Trader intelligence

x402 analytics

Discovery

Payments

What you get

Why not just query the subgraph

Sample request

Prefer an MCP server?

Chains

​What you get

​Why not just query the subgraph

​Sample request

​Prefer an MCP server?

​Chains

What you get

Why not just query the subgraph

Sample request

Prefer an MCP server?

Chains