Comparisons / x402 vs Stripe for agent payments

x402 vs Stripe for agent payments

Updated 2026-10-03 · data from the live Agentropolis index · 20 listings shown, 18 with a listed price or payment evidence

Both let an API answer an agent with HTTP 402 and get paid without a checkout page. x402 is an open protocol where the agent signs a stablecoin payment that a facilitator settles on-chain to your wallet. Stripe’s machine payments settle into your Stripe balance in fiat and support MPP (co-authored by Stripe and Tempo) with cards or stablecoins, and x402 on Base.

Fees and limits below are copied from each provider’s public pricing and docs as checked on Oct 3, 2026 (US list prices); check the linked pages before deciding. Agentropolis is a search engine and is not a party to either.

Disclosure. Agentropolis is a search engine, not a payment party, and is affiliated with Seenly. Kits marked "first-party (Seenly, affiliated)" are ours; they are shown in a separate block and never ranked. Placement on this page is not for sale (paid featured slots are excluded) and there are no affiliate fees; outbound links are nofollow.

Why this page exists. Payment-rail questions are common in Agentropolis A2A and API searches; the index tracks both x402 and MPP listings. Last 90 days: 2 matching searches on Agentropolis, 1 of them from outside agents or people (bots, crawlers and our own tests excluded).

Published terms (as checked Oct 3, 2026)

	x402 (CDP facilitator)	Stripe machine payments	Source
What it is	Open protocol (x402 Foundation, Linux Foundation); many facilitators	Stripe product supporting MPP and x402	[1]
Fees	First 1,000 on-chain facilitator transactions per month free, then $0.001 each; verification free	Stablecoins 1.5% list rate (0.8% promotional rate shown through Jan 1, 2027); cards 2.9% + 30¢ (US domestic)	[2][3]
Minimum charge	Any amount you price; the fee is per on-chain transaction, and batch-settlement can settle thousands of payments in one	0.01 USDC for stablecoins; $0.50 for cards via Shared Payment Tokens	[2][4][5]
Where money lands	Your own wallet, on-chain (USDC)	Your Stripe balance, settled in fiat	[2][4]
Networks	Base, Polygon, Arbitrum, World, Solana (CDP)	x402 on Base (USDC); MPP with stablecoins or cards via Shared Payment Tokens	[2][4]
Refunds and disputes	No chargebacks; refunds are a new transfer you send	Refunds via API/Dashboard; card disputes $15 each	[6][3]
Availability	Anyone with a wallet (the CDP facilitator needs a CDP API key; other facilitators exist)	US businesses; stablecoin acceptance in all states except New York	[4]

What this means

Fees, by the published numbers: up to 1,000 on-chain settlements a month the CDP facilitator costs nothing. Above that it is a flat $0.001 per on-chain transaction, while Stripe lists stablecoins at 1.5% of the amount. So Stripe stablecoins cost less per call below about $0.067 (1.5% of $0.067 is $0.001) and the CDP facilitator costs less above it. x402 batch-settlement, which settles many payments in one transaction, lowers the x402 cost further.
Cards through Stripe (Shared Payment Tokens) have a $0.50 minimum plus 2.9% + 30¢, so they do not suit sub-dollar per-call pricing. Stablecoins on either rail do.
Choose Stripe if you need fiat in a bank account, refunds from a dashboard or card acceptance. Choose x402 if you want funds in your own wallet with no Stripe account. Stripe also accepts x402 on Base, so you can use both.

x402 services with the highest payment-verified trust

Ranked by payment-verified trust from on-chain settlements.

#	Listing	Listed price	Rail	Trust	Verified buyers 30d	Uptime 30d
1	Loyal Spark Pay-per-call API Paid API for onchain loyalty programs on Base: loyalty token deployment, minting to customer wallets, rewards catalog, vouchers and P2P exchange, usable by agents over REST or MCP. Source: x402-list.com.	$0.001–$0.01 per call	x402	100	100	100%
2	StableEnrich Pay-per-call API Pay-per-request research APIs — people, companies, web search, scraping, places, social media, and contact enrichment. Source: MPP registry.	$0.002–$0.22 per call	mpp, x402	96	336	100%
3	Clash of Coins Checkout Pay-per-call API x402 checkout gateway for the Clash of Coins game: exposes the catalog, quotes and purchase of NFT sale lots and in-game shop items, paid in USDC on Base. Source: x402-list.com.	$0.001 per call	x402	95	185	99.5%
4	Nansen Pay-per-call API Blockchain analytics and smart money intelligence. Token data, wallet profiling, DEX trades, PnL, and flow analysis across multiple chains. Source: MPP registry.	$0.01–$0.05 per call	mpp, x402	94	157	100%
5	Otto AI Pay-per-call API AI-agent data storefront on x402 V2: 80 pay-per-call endpoints — crypto and market intelligence (news, KOL sentiment, token security, holders), DeFi and prediction-market data, US Source: x402-list.com.	$0.001–$1.75 per call	x402	93	467	100%
6	glim.sh Pay-per-call API Pay-per-call API returning live data from Twitter, Reddit, the web, GitHub, Amazon, YouTube and Telegram, plus a chat completions compatible inference endpoint. Source: x402-list.com.	$0.001–$0.01 per call	x402	93	88	100%
7	StableSocial Pay-per-call API Pay-per-request social media data from TikTok, Instagram, Facebook, and Reddit. Source: MPP registry.	$0.06 per call	mpp, x402	92	87	100%
8	twit.sh Pay-per-call API Paid API for X/Twitter data: tweet search, user profiles, followers, lists and communities returned as X v2 compatible JSON, plus write endpoints such as posting and interactions. Source: x402-list.com.	$0.0025–$0.01 per call	x402	91	80	100%
9	agentstools Pay-per-call API 359 pay-per-call HTTP tools for AI agents on one host: web search and page extraction, cited answers, crypto and DeFi market data, on-chain analysis and contract risk, security and Source: x402-list.com.	$0.002–$0.05 per call	x402	90	85	99.9%
10	Agent402.tools Pay-per-call API Catalog of pay-per-call HTTP tools for AI agents: web search, browser rendering, PDF and OCR, crypto and stock data, SEC EDGAR filings, plus an OpenAI compatible LLM gateway. Paid Source: x402-list.com.	$0.005–$0.02 per call	x402	89	259	99.8%

Search: x402

MPP services in the index

From the tempoxyz/mpp services registry (MIT/Apache-2.0). Agentropolis does not yet measure MPP payments, so these have no trust score.

#	Listing	Listed price	Rail	Trust	Verified buyers 30d	Uptime 30d
1	StableEnrich Pay-per-call API Pay-per-request research APIs — people, companies, web search, scraping, places, social media, and contact enrichment. Source: MPP registry.	$0.002–$0.22 per call	mpp, x402	96	336	100%
2	Nansen Pay-per-call API Blockchain analytics and smart money intelligence. Token data, wallet profiling, DEX trades, PnL, and flow analysis across multiple chains. Source: MPP registry.	$0.01–$0.05 per call	mpp, x402	94	157	100%
3	StableSocial Pay-per-call API Pay-per-request social media data from TikTok, Instagram, Facebook, and Reddit. Source: MPP registry.	$0.06 per call	mpp, x402	92	87	100%
4	Exa Pay-per-call API Neural web search and page-content retrieval for AI agents, paid per request with no API key. Source: MPP registry.	$0.007 per call	mpp, x402	87	166	99.7%
5	StableTravel Pay-per-call API Flight prices and booking links, award availability, and real-time flight tracking. Powered by Google Flights, Seats.aero, and FlightAware. Source: MPP registry.	$0.0054–$0.05 per call	mpp, x402	83	91	100%
6	StableUpload Pay-per-call API Pay-per-upload file hosting and static site hosting with custom domains — 6 month TTL. Source: MPP registry.	$2.00 per call	mpp, x402	81	66	100%
7	StableEmail Pay-per-call API Pay-per-send email delivery, forwarding inboxes, and custom subdomains — no API keys or accounts. Source: MPP registry.	$0.02–$5.00 per call	mpp, x402	75	29	99.9%
8	DripStack Pay-per-call API MPP-enabled content retrieval from Substack publications. Source: MPP registry.	$3.50 per call	mpp, x402	52	14	96.6%
9	2Captcha Pay-per-call API CAPTCHA solving API — reCAPTCHA, Turnstile, hCaptcha, image captchas, and more. Source: MPP registry.	n/a	mpp	none	n/a	n/a
10	agentfax Pay-per-call API Send a fax to any phone number, priced per page. Pay-per-fax for AI agents — no signup, no API key; documents are never stored. Source: MPP registry.	n/a	mpp	none	n/a	n/a

Search: mpp

How this list is built

Only listings that exist in the Agentropolis index and whose own name, description or tags match this topic. Multi-endpoint storefronts are labelled and listed after dedicated services.
Order: payment-verified trust (0-100, from wash-filtered on-chain settlements), then verified buyers, then a published remote endpoint, then a listed price, then the lowest price. "none" / "n/a" means no evidence yet, not a bad service. There are no user ratings or reviews.
Trust and buyers are per service, not per endpoint. Listed prices come from the seller's discovery data; the live HTTP 402 challenge is authoritative.
Indexing: a page is noindexed when it has fewer than 5 relevant listings or fewer than 3 with a price or payment evidence.

Sources

Machine-readable: JSON for this page · llms.txt · Corrections: hello@agentropolis.io