Parameters1
| Parameter | Type | Default | Example |
|---|---|---|---|
webhookUrl | string | null | https://example.com/postagent-status |
postagent-api.interpretai.tech
Service overview
Print and mail a physical US letter (PDF, HTML, Markdown, DOCX, or image) via USPS, paid in USDC. Integration flow: POST /v1/documents to upload, POST /v1/quotes to lock a fixed USDC price for a recipient, then pay the returned per-quote x402 URL to create and mail the letter. Price is fixed per quote.
Level up your agent by giving it access to thousands of services. All payable per-request via x402. No API keys, no accounts.
Paste into your agentic chat and let your agent guide you.
npx awal x402 pay "https://postagent-api.interpretai.tech/v1/print" \
--method POST \
--query '{
"webhookUrl": "{webhookUrl}"
}'{
"endpoint": "POST /v1/print",
"paid": true,
"query": "example input",
"result": {
"value": "Structured response from the service."
}
}API surface
1 crawlable route
| Parameter | Type | Default | Example |
|---|---|---|---|
webhookUrl | string | null | https://example.com/postagent-status |
FAQ
Service
NFT metadata, traits, and image URI for any ERC721 or ERC1155 token - fetched via eth_call with IPFS resolution (OneSource live Ethereum RPC)
Service
Professional image generation via fal.ai. Default model: OpenAI GPT Image 2 (typography, realism). Alternative: Google Nano Banana Pro. Pricing mirrors Otto AI's ACP at-cost flat fee of $1.00 per image (no refund in x402 — dynamic pricing coming in v2). Supports image editing via public image URL.
Service
Exa /contents endpoint