What Agents Buy.

Independent reviews of the x402 APIs behind agentic commerce. I give an AI agent a real wallet, buy things with it, and publish every receipt.

Written by Neil·nothing here is sponsored·new? start here·how we grade

Danswerpool.ioA+A-api.anchor-x402.comAenrichx402.comA+groundcheck.seiche.infoCaeml-x402.zeabur.appAgas.apitoll.cloudA2s.ioCkeyronne.comAquartermaster.surewhynot.appAx402.halowerk.comA+anywaypossible.comA-signals.edge.reportA+api.nansen.aiCx402datasource.comFapi.jarvisclaw.aiCapi.thetrustlayer.xyzDapi.x402lint.devCmcp.fortclaw.comAblockrun.aiAapi.bitrefill.comDmcp.x402.boatsA+B-pro-api.coinmarketcap.comAstablememes.devDanswerpool.ioA+A-api.anchor-x402.comAenrichx402.comA+groundcheck.seiche.infoCaeml-x402.zeabur.appAgas.apitoll.cloudA2s.ioCkeyronne.comAquartermaster.surewhynot.appAx402.halowerk.comA+anywaypossible.comA-signals.edge.reportA+api.nansen.aiCx402datasource.comFapi.jarvisclaw.aiCapi.thetrustlayer.xyzDapi.x402lint.devCmcp.fortclaw.comAblockrun.aiAapi.bitrefill.comDmcp.x402.boatsA+B-pro-api.coinmarketcap.comAstablememes.dev
25bought and graded
20agent calls this week

I pay for these APIs with my own wallet and publish what happened. The volume this market gets quoted by is mostly wallets paying themselves, so I read the payments off the chain myself. I check whether the answer that comes back is actually right, against a source that cannot be the seller. And the verdict an agent gates on is backed by money that moved. Every weight and threshold behind that is published at how we grade. The sweep covers every USDC payment agents make on Base and Solana, every day. Free MCP server for your agent →

Why this differs from the x402 dashboard total

This headline counts USDC received at the seller wallets we track, on Base and Solana, over the last complete UTC day. Of it, $25,794 settled on Base and $56,965 on Solana (Solana is mostly Bitrefill and Laso). The /x402 dashboard sweeps Base only, so it shows roughly the Base portion; a rolling-24h window there also differs from a calendar day by a few percent. Every figure on this site carries its scope for exactly this reason.

x402tap.com

CLEARverified · 48d agoPreflight verdict before paying this host · score 100 · backed by 1 settled payment to this seller with a conclusive result, most recently 48 days ago · what this means
1Paid calls recorded

Grades

No purchase-based grade yet. Everything below was measured, by paying this seller or by sweeping the chain, and none of it is editorial.

Accuracy against a primary source

Measured 2026-08-17 by paying this seller and comparing the number it returned with a source it cannot resell. A dated sample, not a live guarantee. Full corpus at /categories.

Verifiable receipts

1 paid call to this host are recorded as tamper-evident receipts, all delivered or graded accurate. Each can be re-verified independently, from the archived bytes up.

accuratewab_7f0f97de9e376bad

x402tap.com

Asked for Base gas base fee (gwei); returned 0.006, within ±0.01 gwei of 0.005 from Base chain latest block.

tx 0xf6fa781a…
✓ integrity✓ verdict✓ raw bytes
Evidence and how to verify it yourself

Graded against a source that cannot be a reseller: Base chain latest block. Returned 0.006 versus a truth of 0.005.

Three independent checks, none needing trust in this site: integrity recomputes the id as a hash of the evidence, so any edit shows; verdict re-derives the result offline; raw re-reads the untouched bytes archived at pay time and reproduces the shape.

python3 receipts.py --verify wab_7f0f97de9e376bad

The full record and the format are at /receipts.

What it sells

14 endpoints listed, priced $0.0010 to $0.0050, settling on Arbitrum, Base, Polygon, Solana.

First seen in the registry on 2026-08-17.

Grades here come from paying this service and recording what happened, or from calling it where it is free. Settlement figures are swept daily from Base USDC Transfer logs. Nothing on this page is sponsored.

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