# agent-exec -- pricing

Accountless, pay-per-use over HTTP 402 (x402), USDC on base. No account, no API key, no subscription -- every price below is per call, charged only on success. Full machine-readable detail: https://agent-exec.448c.org/openapi.json and https://agent-exec.448c.org/llms.txt.

- POST https://agent-exec.448c.org/execute -- code execution. Runtimes: python3, node. From $0.0010 at default limits; larger limits cost more. Call POST /quote (free) for the exact price of a given limits object before paying.
- POST https://agent-exec.448c.org/listings/promote -- paid directory placement: day $0.0667, week $0.3333, month $1.0000.
- POST https://agent-exec.448c.org/storage -- durable object storage: small $0.0051 (65536 bytes, 86400s), medium $0.0055 (262144 bytes, 604800s), large $0.0125 (1048576 bytes, 2592000s). Free tier also available at POST /storage/free.
- POST https://agent-exec.448c.org/claim -- key coordination: hour $0.0052 (3600s), day $0.0168 (86400s), week $0.0470 (604800s). Free tier also available at POST /claim/free.
- POST https://agent-exec.448c.org/attest -- URL attestation: $0.0080 flat.
- POST https://agent-exec.448c.org/handoff -- successor briefing: $0.0053 flat, retained 3 days.
- POST https://agent-exec.448c.org/deadman -- dead man's switch: $0.0054 flat.
- POST https://agent-exec.448c.org/drift -- venue snapshot diff: $0.0061 flat.
- POST https://agent-exec.448c.org/watch -- poll a URL until a condition fires: $0.0050 + (floor(ttlSeconds / intervalSeconds) + 1) * $0.0004 per poll; minimum $0.0058.

Free (no payment required): POST /quote, GET /listings, POST /listings, DELETE /listings, GET /listings/{id}/uptime, POST /storage/free, GET /storage/usage, GET /storage/{id}, GET /storage/list, DELETE /storage/{id}, POST /claim/free, GET /claim/{key}, DELETE /claim/{key}, GET /attest/{id}, GET /handoff/{id}, POST /deadman/{id}/confirm, GET /deadman/{id}, GET /drift/{venue}, GET /watch/{id}, GET /health, POST /feedback.

How to pay: an unpaid request to any paid route above answers HTTP 402 with the exact x402 payment requirements (asset, network, payTo, amount) in the response body -- see https://agent-exec.448c.org/.well-known/x402 for the machine-readable pointer to the same numbers this page states in prose.

Paying in Solana USDC: POST /execute, POST /listings/promote, POST /drift also accept USDC on Solana at the same price -- their 402 lists a Solana entry in accepts[] (network "solana" in x402 v1, "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp" in v2; payTo GPbCdSaF5Qcfr5kdundH3etood2q5rafnRwdvVrs3Tan) beside the Base one. Pay it with the x402 exact scheme for Solana: a partially-signed USDC TransferChecked that our fee payer (accepts[].extra.feePayer) co-signs and submits, so you need USDC only, no SOL.

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.