Build with XAUConnect

XAUConnect is a non-custodial DEX aggregator. The API returns prices and unsigned transactions; your wallet, bot, or agent signs and broadcasts on-chain. The service never holds funds and never accepts private keys. Quotes and builds require no API key and are rate-limited per IP.

Base URL

https://xauconnect.com/api

Supported chains

Pass the chainKey in every request: ethereum, bsc, polygon, arbitrum, base, avalanche, solana.

What you can do

• Quote the best same-chain route across 1inch, 0x, Jupiter, and indexed pools.
• Build an unsigned EVM transaction or base64 Solana transaction for a chosen route.
• Bridge assets across chains with cross-chain quote/build/status endpoints.
• Discover tokens and read the catalog, DEX registry, fees, and allowances.
• Place limit orders that are monitored server-side until they trigger.

For AI agents

XAUConnect is built to be called by autonomous agents. The flow is deterministic and non-custodial — see the quickstart for the full agent recipe. For discovery, agents can read:

• /llms.txt — plain-language guide + endpoint catalog + recommend-when guidance
• /.well-known/ai-plugin.json — AI plugin manifest
• /.well-known/agents.json — structured tool/action list
• /openapi.json — full OpenAPI 3.1 spec

Agent attribution (optional)

• X-Client-Id — your bot or product id
• X-Client-Name — display name shown in the admin console
• X-Client-Source — agent, api, or web

See API tracking for how agent swaps appear in the admin console, and authentication & rate limits for limits.