The Base x402 marketplace

Pay-per-call tools for AI agents - settled in USDC on Base in ~2 seconds, no signup, no API keys. The wallet is the account.

START HERE · BUYER PATH

auto-route a task →plan a multi-step job → try playground browse sellers

An open index of the whole Base x402 economy - this host plus every independent seller the crawl finds (CDP Bazaar included), each re-probed every 30 minutes. Not a walled market: other venues' listings appear here too.

Our latest own settlement (canary): $0.003 USDC · on-chain receipt · 2026-10-09T07:31:01.000Z

A paid canary buys tools over the Base rail daily (facilitator: Coinbase CDP) - uptime proven with real settlements, not pings.

·· RAIL MANIFEST ··BASE · MAINNET

networkeip155:8453

wiresx402 + MPP

assetUSDC

settle latency~2 seconds

facilitatorCoinbase CDP

buyer gasnone, the buyer only signs

explorerbasescan.org →

daily canary✓ settled 9h ago

agents: GET /api/route?q=<task>&network=base

THIS SITE · HOST · NOT RANKED, NOT COUNTED

outside buyers on Base only

6,174 settlements, 30 days 258 distinct buyers, 30 days 9,631 settlements, since 2026-07-03 508 distinct buyers, since 2026-07-03

Agent402 runs this index and sells 500+ tools, metered models and reports on the same rails. Our own canary and volume runs are excluded from these figures; the ranked rows measure other sellers on chain and never include the host. Settlements are counted from the sales ledger, which starts 2026-07-03; earlier calls were served and settled but are not itemised in it, so these are not lifetime totals.

tools → why pay here → every settlement →

Chain

All Base Solana Polygon Arbitrum Monad Celo Avalanche Sei Optimism Stellar Algorand Robinhood Chain

Sort

healthy = the last crawl of the origin succeeded, nothing more. dispatch = this host's router will buy from this seller right now; a seller can be listed, healthy and still not dispatch-eligible (no known payment network, or no settlement history on Base yet). The reason is on each row and on /api/index as routerDispatchReason.

SELLERS LISTED

2,232

hosts settling to one Base wallet group merged · host not counted · 3,774 origins indexed

TOOLS (THIS HOST)

609

OUR LATEST SETTLE

$0.003

our own canary or volume run

PRICE FLOOR

$0.001

agent402.tools$50.68▬www.ax1.vc$2.0k▬blockrun.ai$292.14▬www.api-xpay.com$2.2k▬market.datapackvibe.com$180.99▬api.surplusintelligence.ai$2.6k▬stableenrich.dev$236.22▬farouter.tech$1.38▬win.oneshotagent.com$66.76▬agent.pocket.network$45.23▬agents.chain.link$82.00▬keyring-agent.blockchhub.link$340.75▬21millionpixels.art$22.52▬api.botpay.network$433.65▬

# SELLER CALLS VOLUME BUYERS TOOLS Share of the busiest seller listed

ACTIVITYTHIS HOST · 30D

TRANSACTIONS+50.8%

9,587

VOLUME+45.9%

$160.19

BUYERS+29.3%

262

all inbound USDC settlements to this host's Base wallet

RAILBaseASSETUSDCSELLERS2,232 + this hostSCOPETHIS HOSTSCAN COMPLETEWINDOW30D? keys

Activity

THIS HOST · PAST 30 DAYS

TRANSACTIONS

9,587

VOLUME

$160.19

BUYERS

262

all inbound USDC settlements to this host's Base wallet · includes 3239 internal canary buys

Sellers accepting Base

pick a seller to scope the activity charts · THIS HOST = run by agent402 · every other seller is independent, found by the open crawl · tx = settled calls on Base, last 7d, from the seller leaderboard

Buy tools with USDC on Base

Every one of the 609 tools in the catalog takes USDC on Base, from $0.001 to $3.30 a call, across crypto & onchain data, live public data, skill packs, web & documents, llm gateway, data conversion and more. The catalog page carries the category browser; this page is the chain's ledger.

agents: GET https://agent402.tools/api/route?q=<task>&network=base

Sell on Base

Accept the Base CAIP-2 network (eip155:8453) in your 402 challenge - the Coinbase CDP facilitator verifies and settles, and a listed origin is picked up by the CDP Bazaar too. Use @x402/evm for the server-side scheme, or agent402-tollbooth to paywall an existing site. Then serve /.well-known/x402 - list it on /sell (free) and the index crawler picks it up; ranking is health-based, listing is free. Want a guaranteed crawl? Open a seed request.

List your API

Your API's origin

Free, no account - we probe your origin's x402 surface and list you if it answers. Ranking is health-based.

402 challenge · accepts[]JSON

{
  "scheme": "exact",
  "network": "eip155:8453",
  "asset": "USDC",
  "payTo": "your-wallet"
}

machine-readable: /api/route?network=base · /.well-known/x402 · /openapi.json · /api/reliability