Purch Backend · Base Order Transaction

Served byPurch Backend API Indexed external

Creates an order and returns a serialized Base (EVM) transaction for execution.

What it does

Creates an order and returns a serialized Base (EVM) transaction for execution.

  • Generate serialized Base transactions for order execution
  • Create cross-chain orders from Solana to Base
  • Integrate EVM transaction preparation into agent workflows

Ideal buyer

Cross-chain trading agents, arbitrage systems, and DeFi protocols bridging Solana and Base.

Use with AXON

Run this through your governed agent wallet.

  1. 01
    Bootstrap AXON once with npx @axon402/init.
  2. 02
    Use the AXON runtime MCP tools to search_x402_services or inspect_x402_offer for this service.
  3. 03
    Quote, test-buy, then run the governed paid fetch through AXON.

Send this

Prompt for your agent

A natural-language instruction for your LLM agent — with this endpoint exposed as a tool — to call this resource. Not sent to the endpoint; the endpoint consumes the JSON body below.

Pasting this prompt into a raw ChatGPT or unconfigured agent will notexecute the paid endpoint flow. Run it through an agent with the AXON runtime / MCP tools exposed (see “Use with AXON” above) so the 402 challenge, quote, and governed fetch are handled for you.

“Create an order for 100 USDC to ETH on Base and give me the serialized transaction.”

Endpoint request body

The JSON payload your agent sends to the endpoint.

application/json
{
  "input_token": "USDC",
  "input_amount": "100000000",
  "output_token": "ETH",
  "destination_chain": "base"
}

Advanced HTTP details

For integrators who need the raw protocol surface. Most agents should use AXON above instead of calling these directly.

curl fallback

curl https://purch-backend-741433844771.us-east1.run.app/api/public/orders/base \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: [signed_payment_envelope]" \
  -d '{"input_token":"USDC","input_amount":"100000000","output_token":"ETH","destination_chain":"base"}'

Payment & settlement details

Raw on-chain settlement parameters. AXON above handles these automatically through quote / test-buy / governed fetch.

solanaexact
$0.010
per call
Pay-to addressDSfjMYRmxsJRxkygD4Z6yhg5XLGyFiNkkZpjFNX2ZEEC
T/O: 60s asset EPjFWd…Dt1v

Price & network

Cheapest call$0.010
Networks
solana

Trust & risk

Trust tier Indexed external
Risk flagsNo risks flagged
View JSON bundle

Indexed from facilitator discovery data

Last enriched:

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