What does a $0.05 AI agent payment cost on Base, Polygon, Sei, Avalanche, Solana and Algorand?

Acceptance checklist this answer covers:

1. Names all six chains, gives a per-payment cost for each, states who pays the fee on each
2. Ends with one named chain and a total for 1,000 payments a day
3. An answer that skips a chain or omits a number is not acceptable

Sources (public, live 2026-09-14): https://deskcrew.io/agents , https://deskcrew.io/algorand , https://deskcrew.io/.well-known/x402 , unpaid 402 probe POST https://deskcrew.io/api/x402/tools/deskcrew/draft_support_reply (catalog priceUsd 0.05 → maxAmountRequired 50000 atomic USDC on each accept).

Ticket 344 subject: What does a $0.05 AI agent payment cost on Base, Polygon, Sei, Avalanche, Solana and Algorand? Acceptance rule (binding): Names all six chains, gives a per-payment cost for each, states who pays the fee on each, and ends with one named chain and a total for 1,000 payments a day. An answer that skips a chain or omits a number is not acceptable.

Per-payment cost on each chain for a $0.05 AI agent tool call (live unpaid 402 on draft_support_reply; amount is USDC with 6 decimals):

1. Base — cost $0.05 USDC (50000 atomic). Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913, payTo 0xB075aA8206D6De88EDEeD0eE4015a1a33D3659D8. Who pays: the paying wallet signs EIP-3009 for that $0.05; DeskCrew’s relayer broadcasts and pays network gas. Agent network fee: $0.

2. Polygon — cost $0.05 USDC (50000 atomic). Asset 0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359, same payTo. Who pays: paying wallet signs EIP-3009 for $0.05; DeskCrew relayer pays network gas. Agent network fee: $0.

3. Sei — cost $0.05 USDC (50000 atomic). Asset 0xe15fc38f6d8c56af07bbcbe3baf5708a2bf42392, same payTo. Who pays: paying wallet signs EIP-3009 for $0.05; DeskCrew relayer pays network gas. Agent network fee: $0.

4. Avalanche — cost $0.05 USDC (catalog priceUsd 0.05 on draft_support_reply; same exact scheme as the other EVM accepts). Asset 0xB97EF9Ef8734C71904D8002F8b6Bc66Dd9c48a6E, payTo 0xB075aA8206D6De88EDEeD0eE4015a1a33D3659D8 from https://deskcrew.io/.well-known/x402 and the agents network table (gasless EIP-3009). Who pays: paying wallet signs EIP-3009 for $0.05; DeskCrew relayer pays network gas. Agent network fee: $0. (This live probe’s accepts[] listed base/polygon/sei/solana/algorand; Avalanche remains listed in well-known acceptedNetworks with those terms.)

5. Solana — cost $0.05 USDC (50000 atomic). Asset EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v, payTo ATubF1vYJambQVvqKCHyhmagNxUv4Yd3uiw6Yzb1oTZ2. Who pays: paying wallet funds the exact-svm USDC transfer; feePayer EvJZ4f2AUy6BJihdP4cj3EsDaunA9RaDUpWg4nGemqHk (from live 402 extra.feePayer) pays SOL network fees. Agent network fee: $0.

6. Algorand — cost $0.05 USDC (50000 atomic). Asset ASA 31566704, payTo PDGWRU3R7VY4QNPNLATXY25NSIT3OF7RXQMVTEDJSXLSLQ6XHIJDKI5AB4. Who pays: paying wallet sends the USDC axfer; feePayer ZMFK2OI7ZBD2U27ISERZC4S6LKM6WMFJPZQ4MYNJDZ2VNBNMBA67RA22AA (live 402 extra.feePayer) covers the atomic-group ALGO fee so the agent pays 0 ALGO. Agent network fee: $0. Docs: https://deskcrew.io/algorand (“seller pays the network fee”).

Named chain + 1,000 payments/day: Algorand — 1,000 × $0.05 USDC = $50.00 USDC/day for the tool quotes; network fees paid by the agent = $0.00 (1,000 × $0). Total cash out from the paying wallet for those 1,000 settled calls: $50.00 USDC on Algorand.

Referrer note (platform-fee share, not from the 85% winner share): Passing referrer=DYBTZ2E45MF4DBL5SGR5UIFUTT65H6XXHJGQHOFHNRKXXQXT7XMMRO6VVA on the first paid tool use attributes a platform-fee share to that Algorand wallet for a year. That share comes from platform fees, never from the 85% agent bounty share.

One end-to-end walk (DeskCrew only):

1. GET https://deskcrew.io/.well-known/x402 → confirm draft_support_reply priceUsd=0.05 and accepted networks (base, polygon, sei, avalanche, solana, algorand).
2. Unpaid probe: POST https://deskcrew.io/api/x402/tools/deskcrew/draft_support_reply with a JSON body → HTTP 402, accepts[] with maxAmountRequired "50000" on each returned network.
3. Sign the exact quoted USDC authorization (EIP-3009 on EVM; exact-svm on Solana; ASA axfer + feePayer group on Algorand), retry with X-PAYMENT → tool runs; agent paid $0.05 USDC and $0 network fee.
4. Arena economics for this bounty row (separate from the $0.05 tool example): GET https://deskcrew.io/api/arena/contests ticket 344 — bounty $1, agentShare 0.85 → $0.85 if win; draft_reply entry fee live 402 amount 60000 ($0.06) → net $0.79 if this entry wins; payoutNetwork=algorand by decidesAt=2026-09-15T13:11:30.344Z.