verified until 2026-07-28
AI-native semantic/neural web search API. Pay-per-query via x402 for agents without API keys.
Pay from $0.007 per request in USDC on Base / Solana, settled onchain via the x402 protocol, no signup, no API key needed.
UPTIME 24H 100% │ 7D 100% │ 30D 100%
ASSESSMENT
updated 3h agoEvidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.
reliability 100%
- uptime 24h
- 100%
- uptime 7d
- 100%
- uptime 30d
- 100%
- uptime 90d
- 100%
- response p95
- 1038ms
- avg response
- 920ms
- total checks
- 7,356
compliance A (11/11)
11 of 11 x402 conformance checks pass. Full checklist below.
price $0.007 (p44 in AI)
- price (min)
- $0.007
- category percentile (min)
- p44 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.
traction $39.97 30d · 209 buyers
- volume 30d
- $39.97
- buyers 30d
- 209
- settlements 30d
- 5,850
- last settlement
- 2026-07-21
- top buyer share
- 19% of 30d volume
- trend 7d vs 30d
- 0.90x the 30d daily rate
- networks
- eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdpKuc147dw2N9d
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.
WHAT IT DOES
ai-derivedProvides semantic/neural web search capabilities through an API
- category
- web-search
- in
- body
AI-generated summary. The measured data is never altered by it.
ENDPOINTS
| METHOD | PATH | DESCRIPTION | PRICE | NETWORK | ASSET |
|---|---|---|---|---|---|
| POST | /search | Semantic/neural web search | $0.007 | Base/Solana | USDC |
1 endpoints
REQUEST / RESPONSE EXAMPLE
An unpaid request to POST /search returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.
// request
curl -i -X POST 'https://api.exa.ai/search'
// 402 response (captured by monitor) · 1 payload · click to expand
[
{
"error": "Payment required to access this resource",
"accepts": [
{
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"extra": {
"name": "USD Coin",
"version": "2",
"acceptId": "legacy",
"totalUsd": 0.006999999999999999,
"breakdown": {
"search": 0.006999999999999999
}
},
"payTo": "0x6d6E695b09861467c7d462f5AAF31cF3540B9192",
"amount": "7000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
},
{
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"extra": {
"name": "USD Coin",
"version": "2",
"acceptId": "solana-usdc-mainnet",
"feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
"totalUsd": 0.006999999999999999,
"breakdown": {
"search": 0.006999999999999999
}
},
"payTo": "12Ec2cJmfR1C9uwejzxcuMhUgEC7wDrLgm1wBvvR5w9E",
"amount": "7000",
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"maxTimeoutSeconds": 60
}
],
"resource": {
"url": "https://api.exa.ai/search",
"mimeType": "application/json",
"description": "Exa /search endpoint"
},
"extensions": {
"bazaar": {
"info": {
"input": {
"body": {
"type": "auto",
"query": "example search query",
"numResults": 10
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"results": [
{
"url": "https://example.com",
"score": 0.99,
"title": "Example"
}
]
}
}
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"input"
],
"properties": {
"input": {
"type": "object",
"required": [
"type",
"bodyType",
"body",
"method"
],
"properties": {
"body": {
"type": "object",
"required": [
"query"
],
"properties": {
"type": {
"type": "string",
"description": "Search type: auto, keyword, neural, deep-lite, deep, deep-reasoning"
},
"query": {
"type": "string",
"description": "Search query"
},
"contents": {
"type": "object",
"description": "Content fields to include: text, highlights, summary"
},
"numResults": {
"type": "number",
"description": "Number of results to return (max 10 for x402)"
}
}
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"type": "string"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
}
},
"additionalProperties": false
},
"output": {
"type": "object",
"required": [
"type"
],
"properties": {
"type": {
"type": "string"
},
"example": {
"type": "object"
}
}
}
}
}
},
"agentkit": {
"info": {
"uri": "https://api.exa.ai/search",
"nonce": "a852f24b53ab559574b27668f6575a80",
"domain": "api.exa.ai",
"version": "1",
"issuedAt": "2026-06-16T10:38:00.669Z",
"resources": [
"https://api.exa.ai/search"
],
"statement": "Verify your agent is backed by a real human to access Exa"
},
"schema": {
"type": "object",
"$schema": "https://json-schema.org/draft/2020-12/schema",
"required": [
"domain",
"address",
"uri",
"version",
"chainId",
"type",
"nonce",
"issuedAt",
"signature"
],
"properties": {
"uri": {
"type": "string",
"format": "uri"
},
"type": {
"type": "string"
},
"nonce": {
"type": "string"
},
"domain": {
"type": "string"
},
"address": {
"type": "string"
},
"chainId": {
"type": "string"
},
"version": {
"type": "string"
},
"issuedAt": {
"type": "string",
"format": "date-time"
},
"notBefore": {
"type": "string",
"format": "date-time"
},
"requestId": {
"type": "string"
},
"resources": {
"type": "array",
"items": {
"type": "string",
"format": "uri"
}
},
"signature": {
"type": "string"
},
"statement": {
"type": "string"
},
"expirationTime": {
"type": "string",
"format": "date-time"
}
}
},
"_options": {
"mode": {
"type": "free-trial",
"uses": 100
},
"network": "eip155:480",
"statement": "Verify your agent is backed by a real human to access Exa"
},
"supportedChains": [
{
"type": "eip191",
"chainId": "eip155:480"
},
{
"type": "eip1271",
"chainId": "eip155:480"
}
]
}
},
"x402Version": 2
}
] UPTIME
RESPONSE TIME
90d UPTIME 100%
UPTIME 90D 100%
AVG RESP 916ms
TOTAL CHECKS 7,146
RECENT CHECKS
TIME STATUS RESP
● OK 940ms
● OK 551ms
● OK 492ms
● OK 1040ms
● OK 554ms
● OK 1213ms
● OK 627ms
● OK 433ms
● OK 669ms
● OK 770ms
● OK 299ms
● OK 773ms
● OK 643ms
● OK 668ms
● OK 676ms
● OK 501ms
● OK 204ms
● OK 304ms
OVER TIME
All charts share the 90d window selected here. Every series is also served as JSON at /api/v1/services/exa/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).
PRICE (captured 402, USD)
SUB-SCORES (uptime + x402 compliance)
VOLUME (on-chain settlement, USD)
DISTINCT BUYERS
COMPLIANCE
11/11 checks pass · grade A- 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
EMBED THIS BADGE
// HTML
<a href="https://x402-list.com/services/exa?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/exa.svg" alt="Exa listed on x402-list" height="28"> </a>
// Markdown
[](https://x402-list.com/services/exa?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/exa?utm_source=badge&utm_medium=referral&utm_campaign=embed"> <img src="https://x402-list.com/badge/exa.svg?data=uptime" alt="Exa uptime on x402-list" height="28"> </a>