Lit Protocol · Send Digital Postcard

Served byLit Protocol Flows: Monetize Agent-Callable Code Indexed external

Send personalized digital postcards with custom front and back images to specified recipients.

What it does

Send personalized digital postcards with custom front and back images to specified recipients.

  • Send branded digital postcards for marketing campaigns
  • Deliver personalized greeting cards with custom imagery
  • Automate postcard delivery for customer appreciation workflows

Ideal buyer

Marketing automation developers and customer engagement platforms needing programmable postcard delivery.

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.

“Send a postcard to this address with this front image URL and birthday message”

Endpoint request body

The JSON payload your agent sends to the endpoint.

application/json
{
  "to": {
    "address": "0x..."
  },
  "from": {
    "name": "Sender"
  },
  "message": "Happy Birthday!",
  "back_image_url": {
    "url": "https://..."
  },
  "front_image_url": {
    "url": "https://..."
  }
}

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://flows.litprotocol.com/api/flows/send-postcard/invoke \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: [signed_payment_envelope]" \
  -d '{"to":{"address":"0x..."},"from":{"name":"Sender"},"message":"Happy Birthday!","back_image_url":{"url":"https://..."},"front_image_url":{"url":"https://..."}}'

Payment & settlement details

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

baseexact
$1.00
per call
Pay-to address0x19485415a3ed445dec86b2aec5aabb41fd516fcb
T/O: 300s asset 0x8335…2913

Price & network

Cheapest call$1.00
Networks
base

Trust & risk

Trust tier Indexed external
Pricing sanityExpensive outlierratio 50.00×
Risk flagsNo risks flagged
View JSON bundle

Indexed from facilitator discovery data

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