run402-mcp/sdk/dist/node/tempo.js

MCP server for Run402 — full-stack backend infrastructure for AI agents: Postgres, auth, storage, serverless functions and atomic deploys. Paid with x402/MPP. Includes $0.03 image generation.

/**
 * The two Tempo chains MPP on Tempo pays on (spec `mpp-tempo-client-surface`).
 *
 * Run402 offers both on every Tempo-priced SKU, in an order that states its
 * preference: mainnet first on paid SKUs, Moderato first on the free prototype
 * tier. pathUSD lives at the same address on both. Tempo has no native gas
 * token; the sender pays its transaction fee in a stablecoin, so a payment
 * needs a little pathUSD beyond the price.
 */
export const PATH_USD = "0x20c0000000000000000000000000000000000000";
export const TEMPO_MAINNET = {
    id: 4217,
    network: "eip155:4217",
    name: "Tempo",
    rpcUrl: "https://rpc.tempo.xyz",
    balanceKey: "tempo_mainnet_pathusd_micros",
    testnet: false,
};
export const TEMPO_MODERATO = {
    id: 42431,
    network: "eip155:42431",
    name: "Tempo Moderato",
    rpcUrl: "https://rpc.moderato.tempo.xyz",
    balanceKey: "tempo_moderato_pathusd_micros",
    testnet: true,
};
export const TEMPO_CHAINS = [TEMPO_MAINNET, TEMPO_MODERATO];
export function tempoChainById(id) {
    return TEMPO_CHAINS.find((chain) => chain.id === Number(id)) ?? null;
}
/**
 * pathUSD (USD micros) a payment needs beyond the price, for the sender's
 * Tempo transaction fee.
 */
export const TEMPO_FEE_HEADROOM_USD_MICROS = 5000n;
/**
 * Ask a Tempo testnet's faucet (the `tempo_fundAddress` JSON-RPC method on
 * the chain's own node) to fund `address` with test pathUSD. The faucet
 * settles on-chain after it answers, so a balance read right after may still
 * show zero; callers poll. The one place the SDK, `r.init()`, and the CLI's
 * `wallets fund` all request Tempo test money. Network failures propagate;
 * a faucet refusal is `{ funded: false, message }`.
 */
export async function requestTempoFaucet(address, chain = TEMPO_MODERATO) {
    if (!chain.testnet) {
        return { funded: false, message: `${chain.name} is a mainnet; it has no faucet` };
    }
    const res = await fetch(chain.rpcUrl, {
        method: "POST",
        headers: { "Content-Type": "application/json" },
        body: JSON.stringify({ jsonrpc: "2.0", method: "tempo_fundAddress", params: [address], id: 1 }),
    });
    const data = (await res.json().catch(() => null));
    if (data?.result)
        return { funded: true };
    return { funded: false, message: data?.error?.message || "Tempo faucet failed" };
}
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