Example inputPOST /api/v1/x402/caesar-cipher
{
"text": "hello agent world"
}Portable intent card · utility
Caesar Cipher (Educational) API for agents
Caesar shift cipher. Handy for puzzle agents, CTF helpers, or reversible toy encoding—not for secrets. Returns shifted text; educational cipher only, not cryptographic protection. $0.001 USDC per successful call via x402 on Base—deterministic first-party JSON, no API key, no subscription, and nothing is billed on structured validation errors.
Intent to transaction
One command, attributed.
The source header follows this discovery route through challenge, payment and delivery without exposing the buyer or request body.
npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/caesar-cipher -m POST -H 'x-delx-source: intent-card-caesar-cipher-api' --max-amount 0.001 -b '{"text":"hello agent world"}'Agent discoverydelx/intent-card/v1
{
"intent": "Caesar Cipher (Educational) for an agent workflow",
"tool_name": "util_caesar_cipher",
"price_usdc": "0.001",
"machine_url": "https://commerce.delx.ai/intents/caesar-cipher-api.json"
}Portable and inspectable