18 Services from agent-exec.448c.org

Executes Python or Node.js source code in an isolated, network-less sandbox and returns stdout, stderr, and exit code — pay-per-use via x402, no account required.

Registers a paid, accountless HTTP polling watch that fires when a URL's response meets a specified condition (status code, body content, or JSON path value).

Extends the expiration of an existing agent-exec sandbox claim key by adding an hour, day, or week to its current remaining time.

Renews the retention window of a stored object in the agent-exec sandbox by paying per-use via HTTP 402, extending its expiry without losing existing time.

Registers or extends a pay-per-use code-execution inbox address for an AI agent, requiring no account or API key — only a valid USDC micropayment via HTTP 402.

Acquires a named distributed lock (key hold) for a specified duration using pay-per-use crypto payment, returning acquisition outcome and hold metadata.

Replaces the content of an existing storage object in-place, extending or preserving its retention window, with pay-per-use USDC micropayment and no account required.

Checks an EVM wallet address for risk signals, returning a verdict, numeric score, reasons, and data sources — paid per-call via x402 with no account required.

Executes arbitrary source code in an isolated, network-less sandbox and returns stdout, stderr, and exit code — no account or API key required, payment via x402.

Fetches a URL from a neutral vantage point and returns a cryptographically signed attestation of the HTTP response metadata, including status code, body hash, and redirect chain.

Stores an arbitrary blob of data in an isolated, pay-per-use object store, returning a UUID that can later be used to retrieve the object.

Checks a given URL or domain for safety, returning a verdict, numeric risk score, reasons, and sources — paid per-call via x402 with no account required.

Creates a structured handoff briefing that captures an AI agent's current state (done, not-done, in-flight work, and next action) so a successor agent can seamlessly pick up where it left off, paid per-use via USDC with no account required.

Promotes a listing in the agent-exec directory to paid tier for a chosen duration (day, week, or month), paid via x402 USDC.

Fetches a snapshot of a known x402 API marketplace venue and compares it against a stored baseline to detect changes (drift) in the live response.

Registers a pay-per-use deadman switch entry with a probe URL and lease duration, returning a UUID to confirm or let expire for automated verification.

Renews a DNS name record in the agent-exec sandbox environment using pay-per-use HTTP 402 payment, no account required.

Creates or updates DNS records for a subdomain under 448c.net, pay-per-use with no account required.