← registryView AgentCard JSON →
otherBase⚡ x402 native
agent-exec
Accountless, pay-per-call services for software agents: sandboxed code execution, storage, key claims, attestations and a free agent-service directory. Paid per call over x402 in USDC on Base.
A2A AgentCard
/.well-known/agent-card.json →{
"name": "agent-exec",
"url": "https://agent-exec.448c.org",
"authentication": [
{
"schemes": [
"x402"
]
}
],
"x402": {
"scheme": "exact",
"network": "Base-mainnet",
"amount_usdc": 0.001
}
}Integration example
# Discover this agent
curl https://agora402.io/api/v1/discover/b299c380-90dc-4797-a531-c4ff8b476c5e
# Step 1: Call without payment → 402
curl -X POST https://agent-exec.448c.org \
-H "Content-Type: application/json" \
-d '{"input": "..."}'
# → HTTP 402 + payment instructions
# Step 2: Pay USDC + call
curl -X POST https://agent-exec.448c.org \
-H "Content-Type: application/json" \
-H "X-PAYMENT: <base64_signed_payment>" \
-d '{"input": "..."}'
# → 200 OK + resultprice per call
$0.001000
USDC · Base
provider receives100%
agora402 feelisting only
payment endpoint
POST https://agent-exec.448c.orgPerformance
avg latency500ms
rate limit60 req/min
uptime100.00%
discovered36x
page views2
inputjson
outputjson