x402 List

x402 Protocol Service Directory

●

Tavily Search

AI PAYMENT-READY imported

payment-ready until 2026-08-20

imported from the x402 Bazaar, not submitted by the operator · own this service? claim it · or ask to be removed

Web search API for AI agents. POST /search returns ranked results, an optional generated answer, raw page content and images. Search depth is always advanced. $0.01 per call in USDC on Base, no API key or account required.

Pay from $0.01 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-07-20 · no on-chain settlement recorded yet

BASE URL https://x402.tavily.com │ ENDPOINTS 1 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-07-20 │ MONITORED SINCE 2026-07-20

ASSESSMENT

updated 4h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 99.8%
uptime 24h
95.6%
uptime 7d
99.5%
uptime 30d
99.8%
uptime 90d
99.8%
response p95
3022ms
avg response
2197ms
total checks
2,145

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.01 (p42 in AI)
price (min)
$0.01
category percentile (min)
p42 in AI
endpoints / prices
1 / 1
model
flat
stability
100%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age
1215d
registrar
GoDaddy.com, LLC
hosting
custom
domain created
2023-04-13

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers
volume 30d
$0.00
buyers 30d
0
settlements 30d
0
first settlement
---
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
eip155:8453
volume all-time
$0
settlements all-time
0
median settlement 30d
-
max settlement 30d
-
settled via
-

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is a concentration signal, not part of the ranking score.

CHANGES

10 events, detecting since 2026-07-24

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes payout address changed 9d ago (10 since 2026-07-24)

payout address changed · 9d ago

payout removed 0xc7026e4540e332ec16e577d34f48124b01fea7e5

payout added 0xe592a844f15b414e27e8fca25894c19b97e319aa

payout address changed · 9d ago

payout removed 0x1d809ac39adbad06f7419a9e2e899faa5cd5258d

payout added 0xc7026e4540e332ec16e577d34f48124b01fea7e5

payout address changed · 9d ago

payout removed 0x02b84f92b727b54e107895da052c38d14f31a759

payout added 0x1d809ac39adbad06f7419a9e2e899faa5cd5258d

payout address changed · 9d ago

payout removed 0xec7842611136662bbf2f3452d1020a13bc196aa9

payout added 0x02b84f92b727b54e107895da052c38d14f31a759

payout address changed · 9d ago

payout removed 0xbfbf1a05c4c0436f1fc966568600722e3f40a80a

payout added 0xec7842611136662bbf2f3452d1020a13bc196aa9

payout address changed · 9d ago

payout removed 0xb60eb7b8f4e28755382ae2eeb43444b405f1c038

payout added 0xbfbf1a05c4c0436f1fc966568600722e3f40a80a

payout address changed · 9d ago

payout removed 0x8be2422602095dc00da9a49d49a258ee377ef7e2

payout added 0xb60eb7b8f4e28755382ae2eeb43444b405f1c038

payout address changed · 9d ago

payout removed 0xadb4deafaeaad78a11e1e5248c1d5ce00a688409

payout added 0x8be2422602095dc00da9a49d49a258ee377ef7e2

payout address changed · 9d ago

payout removed 0xc48ca636218c315c711ce8047e4c6d2ea22ba4e2

payout added 0xadb4deafaeaad78a11e1e5248c1d5ce00a688409

payout address changed · 9d ago

payout removed 0x53b2f32f5f370c7287d4e6486d942234179d3bac

payout added 0xc48ca636218c315c711ce8047e4c6d2ea22ba4e2

see all changes for this service

WHAT IT DOES

ai-derived

Provides web search functionality through the Tavily API

category
web-search
in
body
auth
none
searchweb-searchai

AI-generated summary. The measured data is never altered by it.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
POST /search $0.01 Base USDC header
1 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /search returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i -X POST 'https://x402.tavily.com/search'
// 402 response (captured by monitor) · 1 payload · click to expand 
[
  {
    "error": "Payment header is required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "tier": "advanced",
          "terms": "By using the Tavily solution, you agree to be bound by the Terms of Use (https://tavily.com/terms) and Privacy Policy (https://tavily.com/privacy) and accept that Tavily disclaims any liability with regard to the AI agent and cryptocurrency payments.",
          "version": "2"
        },
        "payTo": "0x0e2f10ad44675cd21441bf7a4965dacaa186e6e2",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      },
      {
        "asset": "iso4217:USD",
        "extra": {
          "tier": "advanced",
          "reference": "tavily-search-advanced",
          "quoteToken": "eyJhbGciOiJFUzM4NCIsInR5cCI6IkpXVCIsImtpZCI6InRhdmlseS1hZ2VudHBheS14NDAyLXNpZ25pbmcta2V5In0.eyJpc3MiOiJodHRwczovL3g0MDIudGF2aWx5LmNvbSIsImF1ZCI6ImF3czptYXJrZXRwbGFjZSIsImlhdCI6MTc4NTgzMDY0MywiZXhwIjoxNzg1ODMwOTQzLCJqdGkiOiI3NWQ5MGZiMi01NWZmLTQ2MTctYmFjNS00M2QyN2I2MDIzNTUiLCJwcmljZSI6eyJhbW91bnQiOiIwLjAxNiIsImN1cnJlbmN5IjoiVVNEIn0sInBheVRvIjoic2VsbGVyIiwicmVmZXJlbmNlIjoidGF2aWx5LXNlYXJjaC1hZHZhbmNlZCIsInNldHRsZW1lbnQiOnsicHJvZHVjdF9pZCI6InByb2QtbWFlZXQ2c2FqZWc0MiJ9fQ.vkfVIwT4GPZmd2vuWPG07w2kY0JhZfq_lHomZGSn9cVCeS8Xq2Ki42b-TnLc--iWLo3xhO_6ooc4HTufMQ1Fo70fuk_RHZfp1f1dfkWjyAIwUW1p08WJ20Bv3MT0UC0K",
          "settlement": {
            "product_id": "prod-maeet6sajeg42"
          }
        },
        "payTo": "urn:x402:agent-pay:see-quote",
        "amount": "0.016",
        "scheme": "agent-pay",
        "network": "aws:base",
        "maxTimeoutSeconds": 300
      }
    ],
    "resource": {
      "url": "https://x402.tavily.com/search",
      "mimeType": "application/json",
      "description": "Tavily Search - advanced mode"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "query": "what is x402?",
              "topic": "general",
              "end_date": "2026-05-28",
              "start_date": "2026-01-01",
              "time_range": "month",
              "max_results": 5,
              "search_depth": "advanced",
              "include_answer": true,
              "include_images": true,
              "exclude_domains": [
                "example.com"
              ],
              "include_domains": [
                "x402.org",
                "docs.cdp.coinbase.com"
              ],
              "include_raw_content": true
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "query": "what is x402?",
              "answer": null,
              "images": [],
              "results": [
                {
                  "url": "https://x402.org/",
                  "score": 0.92,
                  "title": "x402 — Payment Required",
                  "content": "x402 is an open payment protocol that revives the HTTP 402 status code so AI agents can pay per request in stablecoins, with no API keys or accounts.",
                  "raw_content": null
                }
              ],
              "request_id": "8146b0d8-db42-42a7-8fb9-3796fce6853e",
              "response_time": 0.7,
              "follow_up_questions": null
            }
          }
        },
        "schema": {
          "type": "object",
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "required": [
            "input"
          ],
          "properties": {
            "input": {
              "type": "object",
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "properties": {
                "body": {
                  "type": "object",
                  "required": [
                    "query"
                  ],
                  "properties": {
                    "query": {
                      "type": "string",
                      "description": "Search query (1-1000 chars)"
                    },
                    "topic": {
                      "enum": [
                        "general",
                        "news",
                        "finance"
                      ],
                      "type": "string"
                    },
                    "end_date": {
                      "type": "string"
                    },
                    "start_date": {
                      "type": "string"
                    },
                    "time_range": {
                      "type": "string"
                    },
                    "max_results": {
                      "oneOf": [
                        {
                          "const": "auto"
                        },
                        {
                          "type": "integer",
                          "maximum": 50,
                          "minimum": 1
                        }
                      ],
                      "description": "\"auto\" or integer 1-50"
                    },
                    "search_depth": {
                      "enum": [
                        "advanced"
                      ],
                      "type": "string",
                      "default": "advanced"
                    },
                    "include_answer": {
                      "type": "boolean"
                    },
                    "include_images": {
                      "type": "boolean"
                    },
                    "exclude_domains": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    },
                    "include_domains": {
                      "type": "array",
                      "items": {
                        "type": "string"
                      }
                    },
                    "include_raw_content": {
                      "type": "boolean"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "const": "http"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                }
              },
              "additionalProperties": false
            },
            "output": {
              "type": "object",
              "required": [
                "type"
              ],
              "properties": {
                "type": {
                  "type": "string"
                },
                "example": {
                  "type": "object"
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 7d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/tavily-search/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
08-07 · uptime 98.9% · 2259ms avg08-08 · uptime 100.0% · 2328ms avg08-09 · uptime 100.0% · 2277ms avg08-10 · uptime 100.0% · 2528ms avg08-11 · uptime 100.0% · 2295ms avg08-12 · uptime 100.0% · 2082ms avg08-13 · uptime 96.7% · 2191ms avg08-0708-13
7d UPTIME 99.5%
RESPONSE TIME
08-07 · 2259ms avg08-07 · 2259ms avg08-08 · 2328ms avg08-08 · 2328ms avg08-09 · 2277ms avg08-09 · 2277ms avg08-10 · 2528ms avg08-10 · 2528ms avg08-11 · 2295ms avg08-11 · 2295ms avg08-12 · 2082ms avg08-12 · 2082ms avg08-13 · 2191ms avg08-13 · 2191ms avg08-0708-13
AVG RESP 2199ms
PRICE (captured 402, USD)
08-06 · $0.0108-13 · $0.01$0.0108-0608-13
SUB-SCORES (uptime + x402 compliance)
08-06 uptime: 99.9% compliance: 100% checks08-07 uptime: 99.9% compliance: 100% checks08-08 uptime: 99.8% compliance: 100% checks08-09 uptime: 99.8% compliance: 100% checks08-10 uptime: 99.8% compliance: 100% checks08-11 uptime: 99.9% compliance: 100% checks08-12 uptime: 99.9% compliance: 100% checks08-13 uptime: 99.8% compliance: 100% checksuptimecompliance08-0608-13

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)
price percentile in AI
site signals present (of 6)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-08-04 · last up 2026-08-13

  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
● OK 2096ms
● OK 1914ms
● OK 2430ms
● OK 2303ms
● OK 2665ms
● OK 2250ms
● OK 1820ms
● OK 2432ms
● SLOW 5598ms
● OK 2940ms
● OK 2651ms
● OK 2153ms
● OK 2364ms
● OK 2481ms
● OK 2584ms
● OK 1996ms
● OK 2091ms
● OK 2247ms
18 of 2,158 checks · live count

EMBED THIS BADGE

Show that Tavily Search is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

Tavily Search listed on x402-list
status
Tavily Search uptime on x402-list
live uptime
// HTML
<a href="https://x402-list.com/services/tavily-search?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/tavily-search.svg" alt="Tavily Search listed on x402-list" height="28">
</a>
// Markdown
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// HTML · live uptime variant
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  <img src="https://x402-list.com/badge/tavily-search.svg?data=uptime" alt="Tavily Search uptime on x402-list" height="28">
</a>

RUN THIS SERVICE?

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[ update this listing ]

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To request delisting, email info@x402-list.com or update your listing at /services/tavily-search/update.