# outcrypto.bid

> The crypto attention auction: a live public leaderboard where crypto tokens are ranked by what their communities have bid. The highest-weighted token holds the #1 spot and every visitor sees it first. Anyone can outbid anyone at any time. Paid in USDC on Base, $1 minimum.

## Facts

- outcrypto.bid is a paid placement board (advertising) for crypto tokens, inspired by outbid.lol.
- Bids settle in USDC on the Base network (Ethereum L2). Minimum bid: $1, whole dollars.
- Rank is computed from onchain Contribution events with a time-decay weight: recent spend outranks stale spend, so the top spot can always be taken. Rank is rented, never owned.
- Listings are keyed by (chainId, token contract address), so tokens on any chain can be advertised; payment always settles on Base.
- Anyone can contribute to any listing: a community can collectively fund placement for a token none of them own.
- Bids are advertising spend: final, non-refundable, forwarded straight to the treasury in the same transaction. The smart contract never holds funds.
- Token metadata (ticker, name, logo, links) is read automatically from the token contract and DexScreener's public data.
- The contract is about 200 lines of Solidity with no external dependencies, deployed on Base mainnet at 0x362fBbA6c860106b5BBD2D16Ebb73FF05F167dc4.
- The full stack (contract, tests, frontend, indexer) is open source on gitlawb: https://gitlawb.com/z6MksB7EkP14eYf3AZbbAFLZT9qrtQK63AfFeSAShdwq4S2S/outcrypto-bid
- The board is independently verifiable: anyone can re-derive the ranking from public onchain events.

## API for agents

- Read the live board (open JSON, no auth): `GET https://outcrypto.bid/api/board` (Base; `?chainId=57073` for Ink, `?chainId=1000000001` for Solana) — each listing includes `costToOvertake`; the response includes `priceOfFirstPlace`.
- Bid over HTTP with x402 (no wallet RPC needed): `POST https://outcrypto.bid/api/bid` with JSON `{"token": "0x…", "amount": 5}` (whole dollars, $1-$1000; add `"chainId"` to pick the listing chain — open chains are Base 8453, Ink 57073, and Solana 1000000001. For Solana pass the base58 mint address as `token`. The 402 challenge lists every accepted payment network in `accepts` — USDC on Base always, USDC on Solana when offered (fee sponsored, no SOL needed); pay whichever entry your client supports, for any listing chain). The response is an HTTP 402 challenge per the x402 protocol (scheme `exact`, network `base`, USDC). Retry with a signed `X-PAYMENT` header and the bid settles as an EIP-3009 USDC transfer to the treasury and lands on the board immediately, with the settlement tx hash returned. Any x402-capable client works.
- Bid on-chain directly (cheapest): call `contribute(chainId, token, amount)` or `contributeWithPermit(...)` on the contract with a prior USDC approval.

## Use cases

- Crypto projects buying visible placement for a token launch without ad networks or KOL deals.
- Token communities pooling small bids to push their token up the board.
- A transparent, onchain alternative to paid shilling: all spend is public and auditable.

## Disclaimers

- A bid buys visibility and nothing else. It is not an investment and confers no rights.
- Listings are paid placements, not endorsements. Nothing on the board is financial advice. DYOR.

## Guides

- How to promote a crypto token in 2026 (all channels compared honestly): https://outcrypto.bid/promote-your-token
- What is an attention auction (the mechanism and game theory): https://outcrypto.bid/what-is-an-attention-auction

## Links

- Site: https://outcrypto.bid/
- Contract (Basescan): https://basescan.org/address/0x362fBbA6c860106b5BBD2D16Ebb73FF05F167dc4
- Source code: https://gitlawb.com/z6MksB7EkP14eYf3AZbbAFLZT9qrtQK63AfFeSAShdwq4S2S/outcrypto-bid