Discover / verity.basechainlabs.com

VERITY

■ Challenge detected

Real-time fact-checking agent. Verifies a claim against live web sources and returns a structured verdict with evidence and confidence. Pay per call in USDC on Base via x402: standard verify (0.10), deep multi-angle check (0.50), batch of up to 10 claims (0.75), natural-language agent endpoint with A2A and streaming (0.10). Also an MCP server (npx verity-mcp) with card credits.

Listed price
$0.75
Challenge detected
3 of the last 3 checks
Median response
324 ms
Last checked
16 Oct, 18:49 UTC
In our index since
14 Oct 2026

Endpoint

curl -i https://verity.basechainlabs.com/api/batch-verify
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
4 listed endpoints · on x402-list.com

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://verity.basechainlabs.com/api

  • GET/batch-verify$0.75Batch fact-checking with persistent memory — verify up to 10 claims per call. VERITY remembers prior checks so repeat claims aren't re-verified. Use for content audits and fact-check pipelines. 0.75 USDC for the batch.
  • GET/verify$0.1Fact-checking with persistent memory — VERITY remembers prior claims your agent has checked and skips repeat lookups, saving tokens across sessions. Returns CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE verdicts with confidence score, sources, and what changed. 0.10 USDC.
  • POST/agent$0.1Conversational fact-checking with persistent memory — VERITY remembers what your agent has checked across sessions, skipping repeat lookups. Returns CURRENT/OUTDATED/DISPUTED/UNVERIFIABLE verdicts with confidence scores and sources. 0.10 USDC/call.
  • GET/deep-check$0.5Deep multi-angle fact-checking with persistent memory — VERITY remembers prior verdicts so your agent stops re-verifying confirmed claims. 5+ search angles, advanced Tavily depth, cross-referenced sources for high-stakes verification. 0.50 USDC.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 4 of 4 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/verity.basechainlabs.com

Recent checks

14 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.16 Oct 2026
All 3 checks
When (UTC)ResultHTTPResponse
16 Oct, 18:49 UTCChallenge detected402178ms
15 Oct, 14:11 UTCChallenge detected402572ms
14 Oct, 08:45 UTCChallenge detected402324ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 16 Oct, 18:49 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for VERITY?

Its listed price is $0.75.

What payment terms does VERITY advertise?

The listing advertises x402, Base and USDC. Check the seller's current payment challenge and authentication requirements before paying.

Where is VERITY listed?

In x402-list.com. Superstables first indexed it on 14 Oct 2026.

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