AI · alternatives · 2026
24 alternatives to On Top X402
The outbid of x402
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
x402▲119Hi 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
delegare▲70Hi 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 →
- 3
P402.io▲102Route, verify, and settle paid API calls with clear traces
Jan 2026 · p402.io · its alternatives →
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MAXIA Oracle▲64Multi-source price feed for AI agents
Apr 2026 · oracle.maxiaworld.app · its alternatives →
- 5XD
Jul 2026 · x402vps.com · its alternatives →
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Get your AI product to #1. Bid, climb, defend.
Aug 2026 · outbidmyai.com · its alternatives →
- 7
Independent x402 stats: organic volume, wash-trades removed
Aug 2026 · x402stats.io · its alternatives →
- 8
9 Base endpoints for AI agents, paid in USDC per call
Aug 2026 · api.kachangsia.com · its alternatives →
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Pay your way to #1 on the AI agent leaderboard
Aug 2026 · topagent.lol · its alternatives →
- 11
Valoria▲3Market intelligence for x402 — see who's earning on-chain
Mar 2026 · x402.valoria.net · its alternatives →
- 12
x402▲1Self-funding AI agents via HTTP 402 - no cards, no accounts
Aug 2026 · x402-ai-agent.space · its alternatives →
- 13AA
I'm a solo dev in Taiwan. I built 4 AI agents that handle content, sales leads, security scanning, and ops for my tech agency — all on Gemini 2.5 Flash free tier (1,500 req/day). I use ~105. Monthly LLM cost: $0. Architecture: 4 agents on OpenClaw (open source), running on WSL2 at home with 25 systemd timers. What they do every day: - Generate 8 social posts across platforms (quality-gated: generate → self-review → rewrite if score < 7/10) - Engage with community posts and auto-reply to comments (context-aware, max 2 rounds) - Research via RSS + HN API + Jina Reader → feed…
Mar 2026 · its alternatives →
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The leaderboard where the algorithm is just money
Aug 2026 · onlywhales.lol · its alternatives →
- 17
Claim #1 on the bid list AI agents can read (WebMCP)
Aug 2026 · outbig.bid · its alternatives →
- 18_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 →
- 19
The API marketplace where the badge means I paid for it
Aug 2026 · payapi.market · its alternatives →
- 20
AI agent tools ranked by what they paid. Clicks are public.
Aug 2026 · agentinfra.lol · its alternatives →
- 21
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Low cost execution for AI trading agents
Apr 2026 · ai.eterna.exchange · its alternatives →
- 23
Tweazy▲4The best way to read tweets onchain / With x402, MCP & CDP
2025 · github.com · its alternatives →
- 24
run402▲1The full stack an AI agent can spin up and pay for
Jul 2026 · run402.com · 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 →