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Alternatives

Products that do what x402 wallet API: 9 Base endpoints, USDC does

9 Base endpoints for AI agents, paid in USDC per call

  1. 1XA

    Hi HN – excited to announce x402, initially developed by Coinbase (YC 12) x402 lets any HTTP API charge per request without issuing API keys or storing credit cards. Buyers (humans or AI agents) keep funds in their own wallet and dynamically discover compatible endpoints, call them as usual, and automatically pay a microtransaction in USDC or other tokens to settle. 90 second demo: https://www.youtube.com/watch?v=PV-L2AfLhJg Problem: Every time we want to use a new API we have to: find the service online create a developer account, copy a secret key into env vars, pre-fund or…

    2025 · x402.org

  2. 2
    x402119

    An open protocol for internet-native payments from Coinbase

    2025

  3. 3
    P402.io102

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

    Jan 2026

  4. 4

    Independent x402 stats: organic volume, wash-trades removed

    Aug 2026 · x402stats.io

  5. 5

    the programmable wallet for the agentic Internet

    Aug 2026 · blog.cloudflare.com

  6. 6XD
  7. 7
    Monid267

    One wallet, every paid tool your agent needs

    Apr 2026 · monid.ai

  8. 8

    x402 API for US stock market data

    Jun 2026 · x402stock.xyz

  9. 9
    L402.org122

    Internet-native paywalls with HTTP 402 status code

    2024

  10. 10

    Data APIs for AI agents & developers — free to start

    Feb 2026

  11. 11

    The API marketplace where the badge means I paid for it

    26d ago · payapi.market

  12. 12
    x4021

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

    20d ago · x402-ai-agent.space

  13. 13

    Multi-source price feed for AI agents

    Apr 2026 · oracle.maxiaworld.app

  14. 14
    _done4

    APIs & Tools for AI agents. No accounts. Per usage with x402

    Jun 2026 · underscoredone.com

  15. 15

    Pay-per-call federal data API — FDA, SEC, Treasury via x402

    Jun 2026

  16. 16

    Market intelligence for x402 — see who's earning on-chain

    Mar 2026

  17. 17

    Trust scores for x402 API & MCP services — for AI agents

    Jul 2026 · x402.chain-ops.xyz

  18. 18

    Monetize any API with pay-per-call payments

    Apr 2026 · mercury402.com

  19. 19

    x402 commerce layer for AI agents — beyond raw HTTP payments

    May 2026

  20. 20

    Sell your idle API quota. Buy any LLM for less.

    May 2026 · jellynet.net

  21. 21

    Pay-per-fetch China data & analysis for AI agents via x402 (api.060504.shop) — not affiliated with other "AgentBridge" projects - tianzizhiming-svg/agentbridge

    19d ago · github.com

  22. 22CA

    Hi there HN, just wanted to share a little project I've been working on for some time: a coinmarketcap.com Python (API) wrapper. As coinmarketcap does not provide any API endpoints, the code is pretty dirty and should be considered as a scraper more than a real API wrapper. Example usage: >>> import coinmarketcap >>> coinmarketcap.market_cap('bitcoin') $ 7,644,402,276 Everything is well documented in the README but if you have questions, don't ask. Hope you enjoy it, issues and PR on Github are more than welcome. (https://github.com/c0ding/coinmarketcap-api)

    2015

  23. 23

    Refund & Arbitration Protocol For Agents

    Mar 2026

  24. 24

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

    Aug 2026 · x402-ai-agent.space

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