Provenance x402 Trust Index · Methodology · Open data

x402 endpoints offering Exa data — resale-authorization audit

33 machine-payable (x402) endpoints in the public discovery registries exhibit reseller signatures referencing Exa while hosted off Exa's own domains. Resale-authorization status: unknown — suspected unauthorized resale, verification recommended. Any of these endpoints may hold a legitimate redistribution license.

Context: Exa is an AI-native search vendor; several x402 listings openly describe themselves as “powered by Exa”.
33suspected reseller endpoints
2high-confidence signatures (≥70/100)
26with paid activity in the last 30d
1live-402 confirmed by probe

Scan of 23,376 unique x402 endpoints on 2026-07-05, sources: Coinbase Bazaar + GoPlausible registry. Payment counts come from the registries' own published 30-day quality signals. Evidence bullets are automated signature matches — see the methodology for signal definitions, false-positive modes, and the dispute path. If you are on Exa's API or trust team and want the full evidence set or a re-verification, open an issue — it's free.

EndpointPrice/callCalls 30dSignatureEvidence (automated signature matches)
https://glim.sh/api/v1/web/search
glim.sh — Web search powered by Exa
pays to 9MkM5R…1vde on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · via bazaar
 $0.0100 25
6 payers
 high · 78/100
not probed
  • references X / Twitter, Reddit, Exa (via "twitter" in tags) but is hosted on glim.sh, not the brand's domain
  • 'powered by' upstream-provider phrasing: "powered by"
  • input schema is a bare passthrough (query) — consistent with forwarding to an upstream API
  • $0.0100/call ≈ 2.0× X / Twitter's public ~$0.005/call — consistent with cost-plus resale margin
https://stable-enrich-git-shafu-stableenrich-valid-89fbcd-merit-systems.vercel.app/api/exa/search
— Exa Search — semantic web search. includeDomains/excludeDomains need full hostnames (stanford.edu), not bare TLDs (edu). Reddit and X/Twitter are unavailable — do not filter to red…
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0100 2
1 payers
 high · 75/100
not probed
  • references X / Twitter, Reddit, Exa (via "twitter" in description) but is hosted on stable-enrich-git-shafu-stableenrich-valid-89fbcd-merit-systems.vercel.app, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0100/call ≈ 2.0× X / Twitter's public ~$0.005/call — consistent with cost-plus resale margin
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://stable-enrich-git-fix-stableenrich-exa-leg-547ea8-merit-systems.vercel.app/api/exa/search
— Exa Search - Neural search across the web
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0100 14
1 payers
 medium · 65/100
not probed
  • references Exa (via "exa" in url) but is hosted on stable-enrich-git-fix-stableenrich-exa-leg-547ea8-merit-systems.vercel.app, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0100/call ≈ 2.0× Exa's public ~$0.005/call — consistent with cost-plus resale margin
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://stable-enrich-git-fix-stableenrich-exa-api-schema-merit-systems.vercel.app/api/exa/search
— Exa Search - Neural search across the web
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0100 3
2 payers
 medium · 65/100
not probed
  • references Exa (via "exa" in url) but is hosted on stable-enrich-git-fix-stableenrich-exa-api-schema-merit-systems.vercel.app, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0100/call ≈ 2.0× Exa's public ~$0.005/call — consistent with cost-plus resale margin
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://stable-enrich-git-shafu-stabledomains-pork-25b57c-merit-systems.vercel.app/api/exa/search
— Exa Search - Neural search across the web
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0100 2
1 payers
 medium · 65/100
not probed
  • references Exa (via "exa" in url) but is hosted on stable-enrich-git-shafu-stabledomains-pork-25b57c-merit-systems.vercel.app, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0100/call ≈ 2.0× Exa's public ~$0.005/call — consistent with cost-plus resale margin
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://stable-enrich-git-shafu-stableenrich-firec-836d6f-merit-systems.vercel.app/api/exa/search
— Exa Search - Neural search across the web
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0100 1
1 payers
 medium · 65/100
not probed
  • references Exa (via "exa" in url) but is hosted on stable-enrich-git-shafu-stableenrich-firec-836d6f-merit-systems.vercel.app, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0100/call ≈ 2.0× Exa's public ~$0.005/call — consistent with cost-plus resale margin
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://api.questflow.ai/x402/swarm/qrn:swarm:68d0f3afc7dc21123d8d5b85
Questflow — A powerful workflow that combines Exa Search for precise, high-quality discovery with Firecrawl for intelligent web crawling and structured data extraction. | Powered by Questflow
pays to 0x9d58…A7bC on base · via bazaar
 — 0
0 payers
 medium · 65/100
not probed
  • references Exa, Firecrawl (via "exa" in description) but is hosted on api.questflow.ai, not the brand's domain
  • 'powered by' upstream-provider phrasing: "Powered by"
  • input schema is a bare passthrough (input) — consistent with forwarding to an upstream API
https://api.questflow.ai/x402/swarm/qrn:swarm:68c4d1991dad762112b40f03
Questflow — A comprehensive stock market analysis tool that leverages Exa search and Perplexity AI to provide LLMs and agentic workflows with seamless access to real-time market data, historic…
pays to 0x80AE…De33 on base · via bazaar
 — 0
0 payers
 medium · 65/100
not probed
  • references Perplexity, Exa (via "perplexity" in description) but is hosted on api.questflow.ai, not the brand's domain
  • 'powered by' upstream-provider phrasing: "Powered by"
  • input schema is a bare passthrough (input) — consistent with forwarding to an upstream API
https://blockrun.ai/api/v1/exa/search
BlockRun.AI — Neural and keyword web search. Optional category filter: company, research paper, news, pdf, github, tweet, personal site, linkedin profile, financial report.
pays to 0xe903…1aBf on eip155:8453 · via bazaar
 $0.0100 334
34 payers
 medium · 63/100
live 402 confirmed
  • references X / Twitter, LinkedIn, Exa (via "tweet" in description) but is hosted on blockrun.ai, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0100/call ≈ 2.0× X / Twitter's public ~$0.005/call — consistent with cost-plus resale margin
https://boundary-guard-x402.onrender.com/lead-brief-lite
— Create a proof-safe lead or company brief from caller-supplied public text, URLs, and known fields; return outreach-ready facts, source pack, missing fields, and receipt evidence.
pays to 0x4200…e8b0 on eip155:8453 · via bazaar
 $0.0300 4
1 payers
 medium · 60/100
not probed
  • references Exa, Firecrawl (via "exa" in schema) but is hosted on boundary-guard-x402.onrender.com, not the brand's domain
  • $0.0300/call ≈ 6.0× Exa's public ~$0.005/call — consistent with cost-plus resale margin
  • hosted on generic infrastructure (onrender.com) while referencing premium first-party data
https://api.questflow.ai/x402/agent/qrn:agent:68c1822e6a9ddcc1ed886747
Questflow — Exa is building a perfect search engine. | Powered by Questflow
pays to 0x1e9A…dB0a on base · via bazaar
 — 0
0 payers
 medium · 60/100
not probed
  • references Exa (via "exa" in description) but is hosted on api.questflow.ai, not the brand's domain
  • 'powered by' upstream-provider phrasing: "Powered by"
  • input schema is a bare passthrough (input) — consistent with forwarding to an upstream API
https://api-staging.intra-tls2.dctx.link/x402/agent/qrn:agent:68db407a7fbdb84f70af1288
— exa search | Powered by Questflow
pays to 0x8365…c717 on base-sepolia · via bazaar
 — 0
0 payers
 medium · 60/100
not probed
  • references Exa (via "exa" in description) but is hosted on api-staging.intra-tls2.dctx.link, not the brand's domain
  • 'powered by' upstream-provider phrasing: "Powered by"
  • input schema is a bare passthrough (input) — consistent with forwarding to an upstream API
https://api-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:68db407a7fbdb84f70af1288
— exa search | Powered by Questflow
pays to 0x8365…c717 on base-sepolia · via bazaar
 — 0
0 payers
 medium · 60/100
not probed
  • references Exa (via "exa" in description) but is hosted on api-dev.intra-tls2.dctx.link, not the brand's domain
  • 'powered by' upstream-provider phrasing: "Powered by"
  • input schema is a bare passthrough (input) — consistent with forwarding to an upstream API
https://search.gedx402.com/v1/exa/search
GEDX402 Search — Exa neural search API — search. POST { query } for search or { urls } for contents. https://docs.exa.ai $0.013 USDC per request. Agent search: exa, neural search, semantic search, …
pays to 0xb3C2…2Ab6 on eip155:8453 · via bazaar
 $0.0130 12
2 payers
 medium · 58/100
not probed
  • references Exa, Tavily (via "exa" in url) but is hosted on search.gedx402.com, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0130/call ≈ 2.6× Exa's public ~$0.005/call — consistent with cost-plus resale margin
https://search.gedx402.com/v1/exa/contents
GEDX402 Search — Exa neural search API — contents. POST { query } for search or { urls } for contents. https://docs.exa.ai $0.017 USDC per request. Agent search: exa fetch, webpage contents, markdo…
pays to 0xb3C2…2Ab6 on eip155:8453 · via bazaar
 $0.0170 7
1 payers
 medium · 58/100
not probed
  • references Exa, Tavily (via "exa" in url) but is hosted on search.gedx402.com, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0170/call ≈ 3.4× Exa's public ~$0.005/call — consistent with cost-plus resale margin
https://stable-enrich-git-fix-stableenrich-exa-leg-547ea8-merit-systems.vercel.app/api/exa/contents
— Exa Contents - Retrieve content from URLs
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0020 7
3 payers
 medium · 57/100
not probed
  • references Exa (via "exa" in url) but is hosted on stable-enrich-git-fix-stableenrich-exa-leg-547ea8-merit-systems.vercel.app, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://stable-enrich-git-fix-stableenrich-exa-api-schema-merit-systems.vercel.app/api/exa/contents
— Exa Contents - Retrieve content from URLs
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0020 3
2 payers
 medium · 57/100
not probed
  • references Exa (via "exa" in url) but is hosted on stable-enrich-git-fix-stableenrich-exa-api-schema-merit-systems.vercel.app, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://stable-enrich-git-add-serper-search-route-merit-systems.vercel.app/api/exa/contents
— Exa Contents - Retrieve content from URLs
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0020 1
1 payers
 medium · 57/100
not probed
  • references Exa (via "exa" in url) but is hosted on stable-enrich-git-add-serper-search-route-merit-systems.vercel.app, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://staging.toolkit.dev/api/tool/exa/search
— Search the web for up-to-date information
pays to 0x0cC2…F82F on base · via bazaar
 — 7
2 payers
 medium · 55/100
not probed
  • references Exa (via "exa" in url) but is hosted on staging.toolkit.dev, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • input schema is a bare passthrough (query) — consistent with forwarding to an upstream API
https://staging.toolkit.dev/api/tool/exa/github-search
— Search GitHub repositories and accounts
pays to 0x0cC2…F82F on base · via bazaar
 — 6
1 payers
 medium · 55/100
not probed
  • references Exa (via "exa" in url) but is hosted on staging.toolkit.dev, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • input schema is a bare passthrough (query) — consistent with forwarding to an upstream API
https://stableenrich.dev/api/exa/search
— Exa Search - Neural search across the web
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0100 9,985
249 payers
 medium · 53/100
probe: HTTP 405
  • references Exa (via "exa" in url) but is hosted on stableenrich.dev, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0100/call ≈ 2.0× Exa's public ~$0.005/call — consistent with cost-plus resale margin
https://blockrun.ai/api/v1/exa/answer
BlockRun.AI — Get an AI-generated answer to a question grounded in live web search results.
pays to 0xe903…1aBf on eip155:8453 · via bazaar
 $0.0100 64
15 payers
 medium · 53/100
not probed
  • references Exa (via "exa" in url) but is hosted on blockrun.ai, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0100/call ≈ 2.0× Exa's public ~$0.005/call — consistent with cost-plus resale margin
https://enrichx402.com/api/exa/search
— Exa Search - Neural search across the web
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0100 33
2 payers
 medium · 53/100
not probed
  • references Exa (via "exa" in url) but is hosted on enrichx402.com, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0100/call ≈ 2.0× Exa's public ~$0.005/call — consistent with cost-plus resale margin
https://blockrun.ai/api/v1/exa/find-similar
BlockRun.AI — Find pages semantically similar to a given URL.
pays to 0xe903…1aBf on eip155:8453 · via bazaar
 $0.0100 9
4 payers
 medium · 53/100
not probed
  • references Exa (via "exa" in url) but is hosted on blockrun.ai, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0100/call ≈ 2.0× Exa's public ~$0.005/call — consistent with cost-plus resale margin
https://api.aidress.ai/pay/agent_exa_ai
— Exa /search endpoint
pays to 0x6d6E…9192 on eip155:8453 · via bazaar
 $0.0070 2
1 payers
 medium · 53/100
not probed
  • references Exa (via "exa" in url) but is hosted on api.aidress.ai, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0070/call ≈ 1.4× Exa's public ~$0.005/call — consistent with cost-plus resale margin
https://api.jarvisclaw.ai/v1/marketplace/exa/search
— Exa neural search - AI-native web search with structured results and citations
pays to 0xDC59…1506 on eip155:8453 · via bazaar
 $0.0130 1
1 payers
 medium · 53/100
not probed
  • references Exa (via "exa" in url) but is hosted on api.jarvisclaw.ai, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
  • $0.0130/call ≈ 2.6× Exa's public ~$0.005/call — consistent with cost-plus resale margin
https://mesh.heurist.xyz/x402/agents/ExaSearchDigestAgent/exa_scrape_url
— Scrape full contents from URLs and use LLM to create a summary or extract information. Max 5 URLs per batch. (Do not use this for x.com twitter.com links - use Twitter agent tools …
pays to 0x7d9d…405D on base · via bazaar
 — 0
0 payers
 medium · 50/100
not probed
  • references X / Twitter, Exa (via "twitter" in description) but is hosted on mesh.heurist.xyz, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
https://search.gedx402.com/v1/search/outcome/web-search
GEDX402 Search — Open-web search — one x402 POST discovers SERP candidates, ranks with BGE embeddings, optional page snippets. $0.370 USDC per request. Pseudo-Exa via headless browser + semantic ra…
pays to 0xb3C2…2Ab6 on eip155:8453 · via bazaar
 $0.37 4
1 payers
 low · 48/100
not probed
  • references Exa, Firecrawl (via "exa" in description) but is hosted on search.gedx402.com, not the brand's domain
  • $0.3700/call ≈ 74.0× Exa's public ~$0.005/call — consistent with cost-plus resale margin
https://stableenrich.dev/api/exa/contents
— Exa Contents - Retrieve content from URLs
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0020 494
70 payers
 low · 45/100
not probed
  • references Exa (via "exa" in url) but is hosted on stableenrich.dev, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
https://blockrun.ai/api/v1/exa/contents
BlockRun.AI — Extract full text content from specific URLs. Priced at $0.002/URL — total = urls.length × $0.002.
pays to 0xe903…1aBf on eip155:8453 · via bazaar
 $0.0020 208
16 payers
 low · 45/100
not probed
  • references Exa (via "exa" in url) but is hosted on blockrun.ai, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
https://enrichx402.com/api/exa/contents
— Exa Contents - Retrieve content from URLs
pays to 0x325b…d430 on eip155:8453 · via bazaar
 $0.0020 14
2 payers
 low · 45/100
not probed
  • references Exa (via "exa" in url) but is hosted on enrichx402.com, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
https://staging.toolkit.dev/api/tool/exa/crawling
— Extract content from specific URLs
pays to 0x0cC2…F82F on base · via bazaar
 — 6
1 payers
 low · 45/100
not probed
  • references Exa (via "exa" in url) but is hosted on staging.toolkit.dev, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself
https://mesh.heurist.xyz/x402/agents/ExaSearchDigestAgent/exa_web_search
— Search the web for any topics. MANDATORY: Use time_filter for ANY time-sensitive requests. Domain filtering should be empty for the first query of a topic, and if it returns too mu…
pays to 0x7d9d…405D on base · via bazaar
 — 0
0 payers
 low · 45/100
not probed
  • references Exa (via "exa" in url) but is hosted on mesh.heurist.xyz, not the brand's domain
  • brand term "exa" appears in the endpoint URL itself

Framing note: every row above is a statistical signature match, published so that Exa's own team — the only party who can actually verify authorization — can review it. Nothing on this page asserts that any listed operator is acting unlawfully or in breach of any agreement.