SAVER Verifier Fact Checking

api.saververify.com · 2 paid endpoints · listed 2026-10-27

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.

livelast check 5 days ago

100%valid x402 answers, 72 h

$1.00USDC received on Base, 7 days

1distinct payers, 7 days

54.3score (0-100)

Paid endpoints

Method	Endpoint	Price	Networks
POST	api.saververify.com/v2/verify Fact-checking and claim verification API for AI agents. Verify whether a cited source supports a claim; check statistics, dates, units and populations in resear	$0.20	Base
POST	api.saververify.com/verify Verify factual claims and check whether cited sources support them. Fact-check statistics, dates and source attributions in agent research and reports against w	$0.20	Base

Latest checks

When	Endpoint	HTTP	ms	Result
5 days ago	api.saververify.com/v2/verify	402	445	valid x402 v2 terms

Income on Base (7 days)

Day		Transfers	USDC
2026-10-26		5	$1.00

Is this your API?

Add the live badge to your docs:

<a href="https://logicnodes.io/observatory/p/api.saververify.com"><img src="https://logicnodes.io/observatory/badge/api.saververify.com.svg" alt="x402 status"></a>

Claim it for free with x402_provider_claim (sign with your payout address), and get an alert within minutes when it stops answering with x402_monitor_create ($5 for 30 days). Both work over MCP (https://logicnodes.io/mcp/v2) or POST https://logicnodes.io/v1/tools/<tool>.

Income is all USDC received by the provider's payout address on Base, whatever the source. Score: 0-100: 50 x share of checks in the last 72 h that returned valid x402 payment terms + 30 x min(1, log10(1 + USDC received in 7 days) / 4) + 20 x min(1, log10(1 + distinct payers in 7 days) / 3). A provider never checked scores on income only; income is all USDC received by its payout address on Base, whatever the source. JSON: /v1/observatory/providers/api.saververify.com