Provenance x402 Trust Index · Methodology · Open data

x402 endpoints offering Tavily data — resale-authorization audit

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

Context: Tavily sells agent-search API credits, including a free tier that can be arbitraged.
15suspected reseller endpoints
2high-confidence signatures (≥70/100)
13with paid activity in the last 30d
0live-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 Tavily'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://search.gedx402.com/v1/tavily/extract
GEDX402 Search — Tavily API proxy — extract. JSON body matches https://docs.tavily.com/documentation/api-reference/introduction. Poll GET routes (research status, usage) are free; POST routes are x…
pays to 0xb3C2…2Ab6 on eip155:8453 · via bazaar
 $0.10 14
1 payers
 high · 78/100
not probed
  • references Tavily (via "tavily" in url) but is hosted on search.gedx402.com, not the brand's domain
  • brand term "tavily" appears in the endpoint URL itself
  • self-describes as an API proxy: "API proxy"
  • input schema is a bare passthrough (query) — consistent with forwarding to an upstream API
https://search.gedx402.com/v1/tavily/search
GEDX402 Search — Tavily API proxy — search. JSON body matches https://docs.tavily.com/documentation/api-reference/introduction. Poll GET routes (research status, usage) are free; POST routes are x4…
pays to 0xb3C2…2Ab6 on eip155:8453 · via bazaar
 $0.0420 14
1 payers
 high · 78/100
not probed
  • references Tavily (via "tavily" in url) but is hosted on search.gedx402.com, not the brand's domain
  • brand term "tavily" appears in the endpoint URL itself
  • self-describes as an API proxy: "API proxy"
  • input schema is a bare passthrough (query) — consistent with forwarding to an upstream API
https://search.gedx402.com/v1/search
GEDX402 Search — Tavily API proxy — search. JSON body matches https://docs.tavily.com/documentation/api-reference/introduction. Poll GET routes (research status, usage) are free; POST routes are x4…
pays to 0xb3C2…2Ab6 on eip155:8453 · via bazaar
 $0.0420 22
2 payers
 medium · 68/100
not probed
  • references Tavily (via "tavily" in description) but is hosted on search.gedx402.com, not the brand's domain
  • self-describes as an API proxy: "API proxy"
  • input schema is a bare passthrough (query) — consistent with forwarding to an upstream API
  • $0.0420/call ≈ 5.3× Tavily's public ~$0.008/call — consistent with cost-plus resale margin
https://signal-engine-production-d88d.up.railway.app/v1/gateway/search/tavily
— AI-powered web search via Tavily
pays to 0xf080…e035 on eip155:8453 · via bazaar
 $0.0120 3
2 payers
 medium · 65/100
not probed
  • references Tavily (via "tavily" in url) but is hosted on signal-engine-production-d88d.up.railway.app, not the brand's domain
  • brand term "tavily" appears in the endpoint URL itself
  • $0.0120/call ≈ 1.5× Tavily's public ~$0.008/call — consistent with cost-plus resale margin
  • hosted on generic infrastructure (railway.app) while referencing premium first-party data
https://api.auor.io/tavily/v1/search
— Use Tavily to search the web.
pays to 0x5721…8867 on eip155:8453 · via bazaar
 $0.0200 1
1 payers
 medium · 63/100
not probed
  • references Tavily (via "tavily" in url) but is hosted on api.auor.io, not the brand's domain
  • brand term "tavily" appears in the endpoint URL itself
  • input schema is a bare passthrough (query) — consistent with forwarding to an upstream API
  • $0.0200/call ≈ 2.5× Tavily's public ~$0.008/call — consistent with cost-plus resale margin
https://api.questflow.ai/x402/agent/qrn:agent:68ee1cfebd72982773cd07e8
Questflow — The Tavily provides comprehensive web search and data extraction capabilities through four powerful tools: tavily-search for real-time web search, tavily-extract for intelligent da…
pays to 0x4B33…fd25 on base · via bazaar
 — 0
0 payers
 medium · 60/100
not probed
  • references Tavily (via "tavily" 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-dev.intra-tls2.dctx.link/x402/agent/qrn:agent:68ee165dd8b26d2e2dffa01c
— The Tavily MCP server provides: search, extract, map, crawl tools Real-time web search capabilities through the tavily-search tool Intelligent data extraction from web pages via th…
pays to 0xcD5C…DA79 on base-sepolia · via bazaar
 — 0
0 payers
 medium · 60/100
not probed
  • references Tavily (via "tavily" 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://gateway.spraay.app/api/v1/search/web
— Web search with clean, LLM-ready results via Tavily. Basic or advanced depth.
pays to 0xAd62…95c8 on eip155:8453 · via bazaar
 $0.0200 9
2 payers
 medium · 58/100
not probed
  • references Tavily (via "tavily" in description) but is hosted on gateway.spraay.app, not the brand's domain
  • declares upstream data source: "results via Tavily."
  • $0.0200/call ≈ 2.5× Tavily's public ~$0.008/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://climatepulse-six.vercel.app/api/climate/severe
ClimatePulse — Should I be worried about the storm headed this way? Severe weather threat assessment — active alerts, threat level, a safety timeline, a preparedness checklist, shelter guidance, …
pays to 0x50ab…12fc on eip155:8453 · via bazaar
 $0.0800 4
2 payers
 medium · 55/100
not probed
  • references Tavily (via "tavily" in schema) but is hosted on climatepulse-six.vercel.app, not the brand's domain
  • $0.0800/call ≈ 10.0× Tavily's public ~$0.008/call — consistent with cost-plus resale margin
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://climatepulse-six.vercel.app/api/climate/compare
ClimatePulse — Miami or Denver for a winter trip? Side-by-side climate comparison of 2-4 locations — temperature, humidity, UV, and 7-day outlook — with per-location outdoor scores and pros/cons …
pays to 0x50ab…12fc on eip155:8453 · via bazaar
 $0.10 4
2 payers
 medium · 55/100
not probed
  • references Tavily (via "tavily" in schema) but is hosted on climatepulse-six.vercel.app, not the brand's domain
  • $0.1000/call ≈ 12.5× Tavily's public ~$0.008/call — consistent with cost-plus resale margin
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://climatepulse-six.vercel.app/api/climate/activity
ClimatePulse — Is Saturday good for hiking near Denver? Activity-specific go/no-go rating (1-10) for hiking, skiing, surfing, cycling, camping, running, golf, beach, or fishing, with a gear check…
pays to 0x50ab…12fc on eip155:8453 · via bazaar
 $0.10 4
2 payers
 medium · 55/100
not probed
  • references Tavily (via "tavily" in schema) but is hosted on climatepulse-six.vercel.app, not the brand's domain
  • $0.1000/call ≈ 12.5× Tavily's public ~$0.008/call — consistent with cost-plus resale margin
  • hosted on generic infrastructure (vercel.app) while referencing premium first-party data
https://api.signalfuse.co/v1/gateway/search/tavily
— AI-powered web search via Tavily
pays to 0xf080…e035 on eip155:8453 · via bazaar
 $0.0120 180
4 payers
 medium · 53/100
probe: HTTP 405
  • references Tavily (via "tavily" in url) but is hosted on api.signalfuse.co, not the brand's domain
  • brand term "tavily" appears in the endpoint URL itself
  • $0.0120/call ≈ 1.5× Tavily's public ~$0.008/call — consistent with cost-plus resale margin
https://api.qonoro.ai/v1/outbound/personalize
— Generates a personalized B2B outbound message for a target prospect. Researches the company, person, and recent signals via 3 Tavily searches, then uses an LLM to craft a subject l…
pays to 0x40B6…72eb on eip155:8453 · via bazaar
 $0.75 1
1 payers
 low · 48/100
not probed
  • references LinkedIn, Tavily (via "linkedin" in schema) but is hosted on api.qonoro.ai, not the brand's domain
  • $0.7500/call ≈ 93.8× Tavily's public ~$0.008/call — consistent with cost-plus resale margin

Framing note: every row above is a statistical signature match, published so that Tavily'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.