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AI · alternatives · 2026

24 alternatives to x402 wallet API: 9 Base endpoints, USDC

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

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 1 we have checked on their own sites.

  1. 1
    x402▲119

    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 · its alternatives →

  2. 2
    P402.io▲102

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

    Jan 2026 · p402.io · its alternatives →

  3. 3

    Independent x402 stats: organic volume, wash-trades removed

    Aug 2026 · x402stats.io · its alternatives →

  4. 4

    the programmable wallet for the agentic Internet

    Aug 2026 · blog.cloudflare.com · its alternatives →

  5. 5

    Hi guys, am building SecureLend.ai and when working on our underwriting agents (free trial, paid after) I had issues with seamless payment options. Of course I looked at x402 which I believe is a great protocol but not a fan of a) sharing private keys with the agent b) having a human in the loop or c) similar workaround e.g. pre-funded wallets So I started building out a solution. For my use case it was important to not only have stablecoins but also a fiat rail which is now implemented using Stripe. Initially I build a mandate system internally but am very glad and big shoutout to the guys…

    Apr 2026 · delegare.dev · its alternatives →

  6. 6XD
  7. 7

    How we built native x402 payable API support so AI agents can run simulations and pay per request — no human-in-the-loop billing setup required.

    Jun 2026 · cloudworldmodel.ai · its alternatives →

  8. 8

    x402 API for US stock market data

    Jun 2026 · x402stock.xyz · its alternatives →

  9. 9
    L402.org▲122

    Internet-native paywalls with HTTP 402 status code

    2024 · l402.org · its alternatives →

  10. 10

    Data APIs for AI agents & developers — free to start

    Feb 2026 · apipick.com · its alternatives →

  11. 11

    The API marketplace where the badge means I paid for it

    Aug 2026 · payapi.market · its alternatives →

  12. 12
    x402▲1

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

    Aug 2026 · x402-ai-agent.space · its alternatives →

  13. 13

    Multi-source price feed for AI agents

    Apr 2026 · oracle.maxiaworld.app · its alternatives →

  14. 14

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

    Jun 2026 · its alternatives →

  15. 15

    Give your AI agent a real inbox, vault, calendar, and verifiable identity — plus a USDC wallet to pay for what it uses. One API.

    Jun 2026 · mailgent.dev · its alternatives →

  16. 16

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

    Mar 2026 · x402.valoria.net · its alternatives →

  17. 17
    Tweazy▲4

    The best way to read tweets onchain / With x402, MCP & CDP

    2025 · github.com · its alternatives →

  18. 18

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

    Jul 2026 · x402.chain-ops.xyz · its alternatives →

  19. 19

    Monetize any API with pay-per-call payments

    Apr 2026 · mercury402.com · its alternatives →

  20. 20
    _donefrom $0.01/mo▲4

    Actions for AI. Real-world tasks your agent can't do alone. Pay per use with x402 - no accounts. no logins. no keys.

    Jun 2026 · underscoredone.com · its alternatives →

  21. 21

    x402 commerce layer for AI agents — beyond raw HTTP payments

    May 2026 · its alternatives →

  22. 22
    Apiosk▲6

    Get data and research from paid APIs. Describe what you need, review the plan and total price, and receive the result. For people and AI agents.

    Jul 2026 · apiosk.com · its alternatives →

  23. 23

    AI-ready crypto API for agents and crypto investment apps

    2025 · app.tokenmetrics.com · its alternatives →

  24. 24

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

    May 2026 · jellynet.net · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →