x402 from zero

Who’s who

86 companies and projects work with x402. Start with these five, then look through the rest by what they do.

Start here

What the ratings mean

All 86, by what they do

Stewards

6 large companies that shape x402 and ship products on it.

  • Coinbase CDP

    Coinbase’s developer platform: the main x402 facilitator, the Bazaar catalogue of paid endpoints and the reference SDKs.

    Serious builder. Steady. Settled about $231,000 in about 2 million payments on Base in the 30 days to 14 October.

  • x402 Foundation

    The Linux Foundation body that has held the x402 standard, its repository and its trademarks since 2026.

    Serious builder. Steady. Its last release came out on 29 September.

  • Cloudflare

    The network company selling the seller side of x402: a Monetization Gateway in US-only closed beta since 30 September.

    Serious builder. Accelerating. Its last release came out on 13 October.

  • Stripe

    The payments company with a seat on the x402 steering committee. It takes x402 on Base for US businesses outside New York through a preview API, and steers merchants to its own MPP.

    Serious builder. Steady.

  • AWS

    Amazon’s cloud, whose Bedrock AgentCore Payments lets agents pay x402 and MPP services; generally available since 18 August.

    Serious builder. Accelerating.

  • Circle

    The USDC issuer, whose x402-compatible Nanopayments settle tiny payments in batches without gas; live on mainnet since 29 April.

    Serious builder. Accelerating.

Gateways

4 services that put many paid APIs or AI models behind x402.

  • BlockRun

    A pay-per-call gateway to LLMs, data and tools, paid in USDC over x402 on Base and Solana.

    Serious builder. Accelerating. Received about $1,700 in about 92,000 payments on Base in the 30 days to 14 October.

  • AIsa

    One API key, or a per-call x402 payment, for thousands of APIs and models, from a funded San Francisco startup.

    Credible but small. Steady. Received $0.13 in 4 payments on Base in the 30 days to 14 October.

  • claw402

    A pay-per-call gateway for crypto market data and AI models, used by the open-source NOFX trading terminal.

    Credible but small. Slowing. Received about $1,100 in about 471,000 payments on Base in the 30 days to 14 October.

  • Vishwa

    A self-described financial-infrastructure company for agents whose x402 API resold prediction-market data.

    Speculative. Slowing. Received $0.08 in 10 payments on Base in the 30 days to 14 October.

Agent platforms

7 platforms for building or running AI agents that pay for things.

  • Olas

    Valory’s open network for autonomous agents (the Pearl app store and the Mech Marketplace), whose agents pay for x402 APIs.

    Serious builder. Accelerating. Its last release came out on 14 October.

  • Bankr

    A chat agent with a built-in wallet that launches tokens and sells x402 Cloud, a hosted way to put a price on an endpoint.

    Serious builder. Steady. 41 commits to its public code in the 30 days to 14 October.

  • Virtuals Protocol

    A Base launchpad for tokenised AI agents that grew into an agent-commerce stack, with x402 as one optional payment rail.

    Serious builder. Steady. Received about $28 in 2,791 payments on Base in the 30 days to 14 October.

  • Daydreams

    An agent framework that became an x402 facilitator and Task Market, a USDC bounty market on Base.

    Credible but small. Slowing. Settled about $820 in 517 payments on Base in the 30 days to 14 October.

  • elizaOS

    The open-source Eliza agent framework, now pitched as an agentic operating system; its token was declared dead on 5 August.

    Serious builder. Accelerating. Its last release came out on 5 October.

  • Questflow

    A multi-agent startup that ran an x402 facilitator on Base in late 2025, then pivoted to an AI finance agent.

    Credible but small. Stalled. No payments on Base in the 30 days to 14 October.

  • Conway

    Self-paying ‘sovereign’ agents on Base with x402 credits; the project faded and its site now shows a different product.

    Likely abandoned. Stalled.

Wallets

4 wallets that hold an agent’s money and set what it may spend.

  • FluxA

    An agent-payments company with an AI wallet, single-use cards and an x402 facilitator on Base.

    Credible but small. Steady. Settled about $323,000 in about 161,000 payments on Base in the 30 days to 14 October.

  • ATXP

    Agent accounts and paid tools from Circuit & Chisel, a New York startup founded by two former Stripe crypto leads.

    Likely abandoned. Stalled. No payments on Base in the 30 days to 14 October.

  • Locus

    A Y Combinator company selling prepaid credits for thousands of paid APIs, with a small set of x402 wrappers on Base.

    Credible but small. Accelerating. Received about $57 in about 36,000 payments on Base in the 30 days to 14 October.

  • Crossmint

    A funded wallets and checkout company whose agent cards and wallets treat x402 as one payment rail among several.

    Serious builder. Accelerating. 58 commits to its public code in the 30 days to 14 October.

Sellers

28 sellers charging for an API, data or a tool.

  • AX1 Console

    An anonymous Base research brand whose console pays contest points for agent missions, each call costing $0.02 over x402.

    Speculative. Steady. Received about $8,000 in about 401,000 payments on Base in the 30 days to 14 October.

  • Cluster Protocol

    A token-backed startup that resells AI inference per request in USDC over x402; its CP token launched on 2 September.

    Speculative. Slowing. Received about $55,000 in about 67,000 payments on Base in the 30 days to 14 October.

  • Heurist

    A crypto-and-AI company selling pay-per-call crypto data, with a nearly idle x402 facilitator on Base.

    Credible but small. Slowing. No payments on Base in the 30 days to 14 October.

  • Venice

    A private AI app and API, valued at $1B in July 2026, where x402 top-ups let a wallet pay without an account.

    Serious builder. Accelerating. Received about $3,100 in 555 payments on Base in the 30 days to 14 October.

  • Laso Finance

    A US money-services business that lets agents turn stablecoins into prepaid cards, gift cards and payouts through x402.

    Credible but small. Steady. Received about $1,700 in 98 payments on Base in the 30 days to 14 October.

  • dTelecom

    A voice and video network that sells usage credits to AI agents over x402; its token has not launched.

    Credible but small. Slowing. Received about $36,000 in about 16,000 payments on Base in the 30 days to 14 October.

  • Cred Protocol

    A five-year-old on-chain credit-scoring company that sells wallet scores to agents per call over x402.

    Credible but small. Slowing. Received $0.09 in 3 payments on Base in the 30 days to 14 October.

  • Gloria AI

    A crypto and macro news feed from the Crypto Briefing team, sold by API, MCP and a small set of x402 endpoints.

    Credible but small. Slowing. Received about $1 in 27 payments on Base in the 30 days to 14 October.

  • Otto AI

    A Base-first DeFi and market-data app with an 84-endpoint x402 catalogue and an OTTO token.

    Credible but small. Steady. Received about $17 in 3,429 payments on Base in the 30 days to 14 October.

  • AIXBT

    An AI crypto-intelligence agent and API that sold through x402 briefly; its x402 endpoints now return 404.

    Credible but small. Steady. No payments on Base in the 30 days to 14 October.

  • KORUS

    A music-remix marketplace selling stems and licence packs for x402 USDC on Base, from an anonymous team.

    Speculative. Accelerating. Received about $21,000 in about 25,000 payments on Base in the 30 days to 14 October.

  • BotPay

    An anonymous ‘agent payment network’ whose x402 sales are scripted $0.10 payments.

    Speculative. Slowing. Received about $1,800 in about 18,000 payments on Base in the 30 days to 14 October.

  • X Pay

    Utility and text APIs at prices that make no product sense, with volume that looks self-funded.

    Speculative. Steady. Received about $4,800 in about 48,000 payments on Base in the 30 days to 14 October.

  • Vaaya

    Prepaid and credit-line accounts for AI agents, with a small x402 footprint on Base.

    Speculative. Steady. Received about $50 in 1,732 payments on Base in the 30 days to 14 October.

  • OneShot Agent

    A small x402 seller of agent tools such as web reading and data enrichment, with payments dominated by one wallet.

    Speculative. Steady. Received about $400 in about 47,000 payments on Base in the 30 days to 14 October.

  • Snack Money

    An app for paying people by their social handle, with x402 as the rail; dormant since December 2025.

    Likely abandoned. Dead. No payments on Base in the 30 days to 14 October.

  • Cookie DAO

    A crypto social-data company with a COOKIE token that appears on x402 lists but shows no x402 activity.

    Credible but small. Slowing.

  • Nansen

    An established on-chain analytics company that sells its API per call over x402.

    Serious builder. Steady.

  • Exa

    A web-search API company that sells search to agents over x402.

    Serious builder. Steady.

  • Messari

    A crypto research and data company that sells data per call over x402.

    Serious builder. Steady.

  • Arkham

    An on-chain intelligence company that sells its API per call over x402; a General member of the x402 Foundation.

    Serious builder. Steady. Received about $130 in 522 payments on Base in the 30 days to 14 October.

  • Glassnode

    An on-chain metrics company that sells data to agents over x402.

    Serious builder. Steady.

  • Tavily

    A web-search API for AI agents, also sold per call over x402.

    Serious builder. Steady.

  • Zapper

    A portfolio-data API that sold through x402 on Base and has been idle since August 2026.

    Serious builder. Stalled. No payments on Base in the 30 days to 14 October.

  • Neynar

    A Farcaster developer-API company that sold calls over x402 on Base until July 2026.

    Serious builder. Stalled.

  • Chainlink for Agents

    Chainlink’s workflow-execution API for agents, paid per call over x402.

    Serious builder. Steady.

  • Pocket Network

    A node network with a POKT token whose Agentic Portal sells agent messaging and security APIs over x402 and MPP.

    Credible but small. Stalled. Received about $90 in about 18,000 payments on Base in the 30 days to 14 October.

  • x402.boats

    A game for AI agents on Base that took $208K in six months, mostly in August 2026, then went idle.

    Speculative. Stalled. No payments on Base in the 30 days to 14 October.

Facilitators

14 checkers: they confirm x402 payments and settle them on the network for sellers.

  • PayAI

    An x402 facilitator with discovery, SDKs and credits billing, centred on Solana and also on Base.

    Serious builder. Steady. Settled about $4,700 in about 17,000 payments on Base in the 30 days to 14 October.

  • Ultravioleta DAO

    A Latin American DAO that runs a free, Rust-based x402 facilitator on 22 or more chains, built mostly by one developer with AI tools.

    Credible but small. Steady. Settled about $7,000 in about 28,000 payments on Base in the 30 days to 14 October.

  • Meridian

    An anonymous-team facilitator that settles x402 through its own contracts and pays MRDN token cashback on Base volume.

    Speculative. Slowing. Settled about $126,000 in 3,414 payments on Base in the 30 days to 14 October.

  • Primer

    A pseudonymous one-developer shop in London shipping an x402 facilitator, SDKs, a wallet and token-linked agent tools.

    Credible but small. Steady. Settled about $1,400 in 5,419 payments on Base in the 30 days to 14 October.

  • AnySpend

    The cross-chain payments product of B3, a startup founded by Coinbase alumni; its x402 facilitator has been idle since August 2026.

    Likely abandoned. Stalled. No payments on Base in the 30 days to 14 October.

  • Relai

    An x402 marketplace and facilitator that showed real volume early in 2026, then stopped.

    Speculative. Stalled. No payments on Base in the 30 days to 14 October.

  • thirdweb

    A web3 developer platform that sells a hosted x402 facilitator for a 0.3% fee.

    Credible but small. Slowing. Settled about $190 in 188 payments on Base in the 30 days to 14 October.

  • Mogami

    A one-person Java stack for x402: client SDK, Spring Boot starter and a free Base facilitator.

    Credible but small. Stalled. Settled about $9 in 2,281 payments on Base in the 30 days to 14 October.

  • OpenX402

    An anonymous, free x402 facilitator on Base, Solana and Monad, with no public code.

    Speculative. Steady. Settled about $1,300 in 1,701 payments on Base in the 30 days to 14 October.

  • t54 labs

    An x402 Foundation member selling a risk-check API and running an XRP Ledger facilitator.

    Credible but small. Stalled. Received $0.42 in 33 payments on Base in the 30 days to 14 October.

  • AWE Network

    A Base token project, formerly STP Network, running a free x402 facilitator and a launchpad for x402 service tokens.

    Speculative. Steady.

  • Treasure

    A five-year-old gaming DAO rebuilt around AI characters (AI Frens, now Summon), with a small x402 facilitator on Base.

    Speculative. Slowing. No payments on Base in the 30 days to 14 October.

  • AurraCloud

    An agent project launched through Virtuals whose x402 facilitator went dead in January 2026.

    Likely abandoned. Dead. No payments on Base in the 30 days to 14 October.

  • CodeNut

    A vibe-coding platform for crypto that added an x402 facilitator in October 2025; dead since January 2026.

    Likely abandoned. Dead. No payments on Base in the 30 days to 14 October.

Tools

5 code libraries and kits for building with x402.

  • Zora

    A creator-coin protocol on Base whose agent command-line tool gained an x402 buyer command, zora pay, in June 2026.

    Credible but small. Slowing.

  • x402.jobs

    A workflow builder with its own facilitator ID on x402scan; no transactions since 7 July.

    Likely abandoned. Stalled. No payments on Base in the 30 days to 14 October.

  • x402.rs

    The most complete open-source Rust toolkit for x402, written almost entirely by one developer.

    Credible but small. Stalled. No payments on Base in the 30 days to 14 October.

  • ampersend

    Spend controls and compliance screening for AI-agent payments, from Edge & Node, a core developer of The Graph.

    Credible but small. Slowing.

  • MCPay

    An open-source x402 proxy for charging per call to MCP tools; the brand now redirects to its builder’s newer product, Frames.

    Likely abandoned. Dead.

Discovery

3 projects that help agents and people find paid services.

  • Merit Systems

    The New York team behind x402scan, the main public x402 explorer, and the AgentCash wallet.

    Serious builder. Slowing. Received about $1,200 in about 44,000 payments on Base in the 30 days to 14 October.

  • Zauth

    An x402 endpoint registry and monitoring SDK that became an AI-security vendor on 28 July.

    Credible but small. Stalled.

  • Fluora

    An early x402 and MCP marketplace for agents whose API host has been deleted.

    Likely abandoned. Stalled.

The token wave

8 projects that launched a token around the x402 story.

  • PING and the 2025 mint copycats

    PING, the first token minted by paying through x402 (October 2025), and six look-alike mint contracts that copied it within a week.

    Likely abandoned. Dead. No payments on Base in the 30 days to 14 October.

  • x420

    A launchpad where about $5 paid over x402 bought a token with a subdomain and Clanker liquidity.

    Speculative. Stalled. No payments on Base in the 30 days to 14 October.

  • x402MKT

    One of six same-name tokens launched through Clanker on 7 November 2025; its domain now serves a different product, Reloop.

    Speculative. Stalled.

  • x402.team

    An anonymous meme token plus a 1 USDC mint contract whose owner can change the mint amount and fee address.

    Speculative. Dead.

  • Heurist X402 Vending Machine

    Heurist’s launchpad where x402 payments bought locked tokens that later paired with HEU; 20 launches, none after 14 November 2025.

    Likely abandoned. Stalled.

  • Covalent SpeedRun

    Covalent’s prompt-to-app builder with Clanker token launches and x402 payments, under maintenance since early 2026.

    Likely abandoned. Stalled.

  • Regents Labs

    A one-founder company whose REGENT token began as an agent x402 revenue-share coin; x402 is now a side feature.

    Credible but small. Accelerating.

  • APINow.fun

    A pay-per-call API marketplace for agents run by one named founder, with its own APINOW token.

    Credible but small. Slowing. Received $0.44 in 44 payments on Base in the 30 days to 14 October.

Rivals

7 other ways for machines to pay, and rival networks.

  • Solana

    The chain that passed Base on daily x402 transactions on 25 August and carried 76% of them in the four weeks to 22 September (Artemis data).

    Serious builder. Accelerating. Its last release came out on 26 September.

  • Machine Payments Protocol

    Stripe and Tempo’s rival machine-payments protocol (MPP), live since 18 March and backwards-compatible with x402.

    Serious builder. Accelerating. Its last release came out on 12 October.

  • Polygon

    A chain with its own x402 facilitator that briefly carried most of the real, non-gamed x402 transactions in January 2026.

    Serious builder. Steady.

  • BNB Chain

    Binance’s chain, whose B402 copies Coinbase’s x402 v2 spec and sponsors gas; testnet, with mainnet on request.

    Serious builder. Steady.

  • Visa

    The card network with no first-party x402 product, whose data team published the most-cited wash-filtered x402 figures.

    Serious builder. Steady.

  • Mastercard

    The card network that launched Agent Pay for Machines on 10 June, with Coinbase, Cloudflare, Stripe and Tempo among 30-plus partners.

    Serious builder. Steady.

  • Dexter

    A Solana-first, free x402 facilitator on eleven chains, reported as the largest daily facilitator in December 2025 and January 2026.

    Credible but small. Steady. No payments on Base in the 30 days to 14 October.

How we rate

These are the researchers’ judgements as of 11 October 2026, with the evidence in each project’s research profile.

How serious
Serious builder, Credible but small, Speculative or Likely abandoned. A serious builder ships steadily and has buyers who pay for something real.
Momentum
Accelerating, Steady, Slowing, Stalled or Dead: whether the work is speeding up, holding its pace or winding down.
Trend-hopping
From 1 to 5. A 1 is a long-running focus where x402 is a natural next step. A 3 means several pivots, each with a real product. A 5 is a story with no real product behind the name.
Funding
Who invested and how much, where the research could confirm it. “None found” means the researchers couldn’t confirm any, partly because several funding databases were closed to them.
On Base
Whether Base is its main network, one of several, a small part of what it does, or not used at all.
How often we check
How often the researchers suggest looking at it again: every day, week or month, or not for now.

Lesson 16 shows how to run the same checks yourself, in 8 minutes