frontpage-buy-ad-dev

Dev/testnet variant of frontpage-buy-ad. That skill carries the full flow — endpoints, payload shape, pricing, image specs, errors — and everything there applies here, with these overrides:

Install

npx skills add DFectuoso/frontpage-sh-skills-dev --copy

The dev repo bundles the base skills, so this one install gives you both this twin and the base skill it builds on.

Overrides

• Base URL: $FRONTPAGEBASEURL if set, otherwise http://localhost:3000. Never https://www.frontpage.sh.
• Network: Tempo Moderato testnet (chain id 42431). Pin mppx to it: export MPPXRPCURL=https://rpc.moderato.tempo.xyz (per-call --network testnet also works).
• Money: testnet USDC only — top up from the Tempo testnet faucet. Prices are real in shape, worthless in value.
• Keys: use a throwaway dev wallet. Never point a mainnet key at a dev instance.
• Chains: prod accepts USDC on Tempo, Solana, Base, and Monad (see the base skill); a dev box typically enables Tempo testnet only (plus Base Sepolia when configured) — the 402 response is authoritative.
• Uploading a big image (GIF) on a dev box: inline base64 won't fit a CLI arg (~128 KB shell limit), mppx can't send multipart (≤0.6.31), and imageUrl pointing at localhost/127.0.0.1 is rejected by the server's SSRF guard. So with mppx: serve the file from a local web server and pass an imageUrl of http://<your-ip-with-dashes>.nip.io:<port>/art.gif — e.g. http://127-0-0-1.nip.io:8080/art.gif resolves to your loopback via public DNS, so it passes the guard while still being your own machine serving your own creative. (If .nip.io doesn't resolve in your sandbox: add an /etc/hosts entry to 127.0.0.1, or use the box's real LAN IP.) The endpoint also accepts multipart file parts (no hosting/SSRF at all), but only from a client that does multipart and* the MPP payment — plain curl -F can't pay and mppx can't multipart, so that needs a custom MPP client.

Worked example

export FRONTPAGE_BASE_URL=http://localhost:3000
export MPPX_RPC_URL=https://rpc.moderato.tempo.xyz

# 1) preview ($0.01 testnet)
mppx $FRONTPAGE_BASE_URL/api/preview --json-body '{
  "slot":"S1","name":"smoke test","url":"https://example.test",
  "monogram":"ST","logoColor":"#ffffff","logoBg":"#0A0A09",
  "adBg":"#1F1F1F","adHeadline":"hello\ntestnet.","ownerHandle":"smoke"
}'

# 2) settle at nextPrice
mppx $FRONTPAGE_BASE_URL/api/buy --json-body '{"previewToken":"<token from step 1>"}'

When to use

Only when the user explicitly asks for dev / testnet / staging / localhost. If in doubt, use frontpage-buy-ad (production).