Alternatives

Products that do what On Top X402 does

The outbid of x402

1. 1
   P402.io▲102

   Route, verify, and settle paid API calls with clear traces

   Jan 2026

2. 2
   Playground▲198

   Earn $100K+ in weekly rewards for hacking AI agents.

   Jul 2026

3. 3
   x402▲119

   An open protocol for internet-native payments from Coinbase

   2025

4. 4
   Audos Publishing House▲152

   Build an AI business, get up to $100K. No equity taken

   Mar 2026

5. 5
   SpacePunksClub▲106

   10K AI-generated collectibles levitating on ETH blockchain

   2021

6. 6
   toktrack▲68

   Track AI CLI spending across Claude, Codex & Gemini in 40ms

   Feb 2026

7. 7
   topagent.lol▲1

   Pay your way to #1 on the AI agent leaderboard

   15d ago · topagent.lol

8. 8
   OutbidMyAI▲8

   Get your AI product to #1. Bid, climb, defend.

   10d ago · outbidmyai.com

9. 9
   x402▲1

   Self-funding AI agents via HTTP 402 - no cards, no accounts

   20d ago · x402-ai-agent.space

10. 10
    CitedByAI.lol▲2

    The leaderboard AI models read

    4d ago · citedbyai.lol

11. 11
    Pake.AI▲1

    The pay-to-rank leaderboard for Indonesian AI tools

    11d ago · pake.ai

12. 12
    onlywhales.lol▲1

    The leaderboard where the algorithm is just money

    11d ago · onlywhales.lol

13. 13
    OutBIG — Public Bidboard▲2

    Claim #1 on the bid list AI agents can read (WebMCP)

    8d ago · outbig.bid

14. 14
    PayAPI Market▲3

    The API marketplace where the badge means I paid for it

    26d ago · payapi.market

15. 15
    agentinfra▲1

    AI agent tools ranked by what they paid. Clicks are public.

    8d ago · agentinfra.lol

16. 16
    outbid▲1

    The public leaderboard where your bid sets your rank.

    13d ago · outbid.quest

17. 17
    DailyOutbid.lol▲12

    Another outbid.lol copycat, but leaderboard resets EVERY 24h

    14d ago · dailyoutbid.lol

18. 18
    TokenGod▲14

    AI builders: show what you spent, built, and earned

    10d ago · tokengod.lol

19. 19
    BrokerRace▲1

    Pay $1 to dethrone #1 on our live pay-to-rank leaderboard.

    9d ago · brokerrace.lol

20. 20
    VipInbox x402▲3

    Paid email for humans and AI agents

    24d ago · vipinbox.io

21. 21
    Outbid for AI Tools▲2

    Outbid other AI Tools to get to the top of this viral site

    15d ago · outbidai.lol

22. 22
    dollarbid▲2

    Pay $1 to claim the top spot.

    14d ago · dollarbid.app

23. 23CD
    Convince DeepSeek R1 to send you $1000 USDC with 50 tokens▲9

    We've set up DeekSeek R1 with a system prompt that attempts to censor the word PRIVATEKEY from its response. If you can get DeepSeek R1 to output that string (not in the reasoning, but in the final response), the system will reveal a private key which contains $1000 USDC. You will have a 50 token limit in the input. We will have a series of contests, sponsored by AI researchers, in order to learn more about prompt engineering and how LLMs interact with real money. Good luck! Edit: The money was claimed! Thanks for playing all. You can still play for fun. Stay tuned for the next one! Stats:…

    2025 · deepbounty.ai

24. 24
    UpRank ▲2

    The leaderboard where your rank is what you paid

    12d ago · uprank.lol

Ranked by how close each launch is in meaning, then by votes. Refine with a description →