The Polygon x402 marketplace

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

START HERE · BUYER PATH

auto-route a task → try playground browse sellers

An open index of the whole Polygon x402 economy - this host plus every independent seller the hourly crawl finds (CDP Bazaar included). Not a walled market: other venues' listings appear here too.

live receipts temporarily unavailable - settlements remain verifiable at polygonscan.com

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

·· RAIL MANIFEST ··POLYGON · MAINNET

networkeip155:137

wiresx402

assetUSDC

settle latency~2 seconds

facilitatorPayAI

gassponsored

explorerpolygonscan.com →

daily canaryunavailable

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

THIS SITE · HOST · NOT RANKED, NOT COUNTED

outside buyers on Polygon only

0 settlements, 30 days 0 distinct buyers, 30 days 0 settlements, all time 0 distinct buyers, all time

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.

tools → why pay here → every settlement →

Chain

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

Sort

SELLERS LISTED

distinct payees · 187 endpoints indexed

TOOLS (THIS HOST)

551

LATEST SETTLE

PRICE FLOOR

$0.001

Activity

activity scan temporarily unavailable - settlements remain independently verifiable on polygonscan.com

Sellers settling on Polygon

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, last 7 days on-chain

Browse Polygon-payable tools

Encoding & crypto

Hash$0.001

HMAC$0.001

Base64$0.001

Hex$0.001

URL encode/decode$0.001

JWT decode$0.001

+ 8 more in the full catalog

agents: GET https://base-sentinel-production.up.railway.app/api/route?q=<task>&network=polygon

Sell on Polygon

Accept the Polygon CAIP-2 network (eip155:137) in your 402 challenge - the PayAI facilitator verifies and settles, gas sponsored. 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": "eip155:137",
  "asset": "USDC",
  "payTo": "your-wallet"
}

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

The Polygon x402 marketplace

Activity

Sellers settling on Polygon

Browse Polygon-payable tools

Live public data

Crypto & onchain data

Skill packs

LLM gateway

Web & documents

Data conversion

Validation & parsing

Network & domains

Text processing

Payments & x402

AI & compute

Encoding & crypto

Sell on Polygon