x402 merchant
SAVER Verifier Fact Checking$0.20 / callapi.saververify.com ↗
Fact-checkingClaim-verificationStatisticsSource-attributionResearch-reports

Fact-checking and claim verification API for AI agents. Verify whether a cited source supports a claim; check statistics, dates, units and populations in research reports before publication. Separate web research returns a verdict, linked evidence and sources. Source verification is model-assessed, not guaranteed correct. POST /v2/verify; x402 v2 on Base; 0.20 USDC. No signup or API key.

MerchantReport

0xdfd6…c110

0xdfd6cb683f5288e1dd1337e84c09b490857cc110Explorer
Received
$10.40↑ 167%
Last 7d vs prior 7d
Paid out
$0.00
Last 7d vs prior 7d
Settlements
52↑ 167%
Last 7d vs prior 7d
2
Distinct counterparties
Over the whole indexed history

Received $10.40 of the $847.30M Roundhouse has indexed across 1,331,054 wallets — less than 0.0001% of it.

Chains (from the recent scan): Base (52)

Funds flow over time

Activity

MayJunJulAugSepOct
LessMore

One square per day; click a day to see its settlements in the ledger.

Frequent counterparties

CounterpartySent to themReceived from themSettlementsLast
0x2be8…3285$0.00$10.005014h agoGraph
0xc9c7…1670$0.00$0.40215d agoGraph

Ranked by settled amount over this wallet's recent settlement window — who it normally transacts with.

Data quality

96% of observed volume is with a single counterparty, in all 52 observed settlements.

Organic volume $10.40 of $10.40 total.

Recent activity

Payer PayeeChainAmountx402RouteAgeTxn hash
0x2be8…32850xdfd6…c110Base$0.20100%coinbase21d ago0xf99c96…fc5b45
0x2be8…32850xdfd6…c110Base$0.20100%coinbase21d ago0x394e9d…4e3eda

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will check 0xdfd6…c110's payment record before paying it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/merchants/0xdfd6cb683f5288e1dd1337e84c09b490857cc110

Open skill.md
Show the prompt
Using Roundhouse, tell me whether this x402 merchant is worth paying: how many distinct
agents have paid it, how recently, and for what.

  Merchant wallet: 0xdfd6cb683f5288e1dd1337e84c09b490857cc110

curl -s 'https://api.roundhouseai.io/v0/merchants/0xdfd6cb683f5288e1dd1337e84c09b490857cc110'
curl -s 'https://api.roundhouseai.io/v0/entities/0xdfd6cb683f5288e1dd1337e84c09b490857cc110/settlements?limit=50'

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.