AI · alternatives · 2026
24 alternatives to Mercury402
Monetize any API with pay-per-call payments
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 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 →
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P402.io▲102Route, verify, and settle paid API calls with clear traces
Jan 2026 · p402.io · its alternatives →
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9 Base endpoints for AI agents, paid in USDC per call
Aug 2026 · api.kachangsia.com · its alternatives →
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Independent x402 stats: organic volume, wash-trades removed
Aug 2026 · x402stats.io · its alternatives →
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Pay-per-call federal data API — FDA, SEC, Treasury via x402
Jun 2026 · its alternatives →
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Flagright▲117Risk-based transaction monitoring API for fintech startups
2022 · flagright.com · its alternatives →
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Reimburse out-of-pocket employee expenses right from Mercury
2024 · mercury.com · its alternatives →
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We just released an MCP server that lets Claude (or any MCP client) pull real-time and historical financial data: equities, options chains, crypto, FX, commodities, fundamentals, economic indicators, and 50+ technical signals. You can ask things like: “Plot NVDA’s RSI vs AMD’s over the past year.” “Show the yield curve shift since 2020.” “What are Apple’s recent earnings surprise trends? “Make a 3-statement model for ORCL.” Claude runs the requests, does the math, and returns the data or generates charts/models all inside the chat. Setup takes about a minute. You’ll need Claude Pro…
Nov 2025 · mcp.alphavantage.co · its alternatives →
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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 →
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CurrencyStack▲113A free modern currency data API for fintech apps.
2019 · currencystack.io · its alternatives →
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2018 · cryptomarketplot.com · its alternatives →
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Pay-per-call data API for AI agents, no subscriptions
Jul 2026 · jsey.dpdns.org · its alternatives →
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Finage▲104Real-time API platform for stock, forex, and crypto data
2025 · finage.co.uk · its alternatives →
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Pay-per-call financial data API with x402 on Base
Mar 2026 · artha.getakasha.finance · its alternatives →
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MAXIA Oracle▲64Multi-source price feed for AI agents
Apr 2026 · oracle.maxiaworld.app · its alternatives →
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API Pick▲71Data APIs for AI agents & developers — free to start
Feb 2026 · apipick.com · its alternatives →
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PayGate▲1One line of code to monetize any API in stablecoins
May 2026 · paygate.deltab.ai · its alternatives →
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JellyNet▲22Sell your idle API quota. Buy any LLM for less.
May 2026 · jellynet.net · its alternatives →
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Valoria▲3Market intelligence for x402 — see who's earning on-chain
Mar 2026 · x402.valoria.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 →