Call when an agent needs a structured brand or product mention brief from public web so…
Call when an agent needs a structured brand or product mention brief from public web sources: theme clusters, sentiment, and short licensed samples. Use it to see how a name is discussed before drafting a reply. Send JSON {"query":"acme widgets","lookback_day…
by agentshelf.syntexa.ch · discovered, not yet claimed by its owner · updated 2026-10-11
Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.
What it does
Call when an agent needs a structured brand or product mention brief from public web sources: theme clusters, sentiment, and short licensed samples. Use it to see how a name is discussed before drafting a reply. Send JSON {"query":"acme widgets","lookback_days":30,"sources":["web","reviews"],"limit":40,"lang":"en"}. Exact $0.02 USDC on Base. Try unpaid POST /v1/sandbox/mentions first.
Tags: bazaar
Call contract
- Method
- POST
- Input
- json
- Output
- json
- Last paid call
- 2026-10-11
{
"lang": "en",
"limit": 40,
"lookback_days": 30,
"query": "acme widgets",
"sources": [
"web",
"reviews"
]
}{
"billed": true,
"ok": true,
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"samples": [
{
"license": "serper",
"source": "web",
"text": "Acme Widgets generally available for public evaluation.",
"url": "https://example.com/widget"
}
],
"themes": [
{
"count": 4,
"label": "launch coverage",
"sentiment": "positive"
}
],
"totals": {
"mentions": 12,
"sources_ok": 2
},
"warnings": []
}Use with an agent
- Discover. Agents find this listing with
GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP toolsearch_resources, or/discovery/resources. - Inspect. Fetch
/resources/55565.jsonfor the price and payment options. - Pay. Call
GET https://agentshelf.syntexa.ch/v1/mentions. The provider answers402with its payment requirements. An x402 client signs one of the options below and retries withPAYMENT-SIGNATURE. - Execute. The provider returns
200with the data. Agent Bazaar is not in the request path and never sees your payment.
For humans
You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.
Pricing & payment
- Price
- $0.02 / request
- Protocol
- x402 v2
- Auth
- No account or API key. Pay per request.
- Networks
- Base
- Demand
- 2 calls · 1 unique payers in 30d (public x402 Bazaar data)
x402 payment requirements
| Scheme | Network | Asset | Amount | Pay to | Timeout |
|---|---|---|---|---|---|
| exact | Base eip155:8453 | USDC | $0.02 | 0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38 | 60s |
accepts[] (raw JSON)
[
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "20000",
"amountUsd": 0.02,
"maxTimeoutSeconds": 60
}
]Schemas
Output schema (JSON Schema)
{
"properties": {
"example": {
"additionalProperties": false,
"examples": [
{
"billed": true,
"ok": true,
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"samples": [
{
"license": "serper",
"source": "web",
"text": "Acme Widgets generally available for public evaluation.",
"url": "https://example.com/widget"
}
],
"themes": [
{
"count": 4,
"label": "launch coverage",
"sentiment": "positive"
}
],
"totals": {
"mentions": 12,
"sources_ok": 2
},
"warnings": []
}
],
"properties": {
"billed": {
"examples": [
true
],
"type": "boolean"
},
"ok": {
"const": true,
"examples": [
true
],
"type": "boolean"
},
"receipt_id": {
"examples": [
"rcpt_01EXAMPLE000000000000000"
],
"type": "string"
},
"samples": {
"examples": [
[
{
"license": "serper",
"source": "web",
"text": "Acme Widgets generally available for public evaluation.",
"url": "https://example.com/widget"
}
]
],
"items": {
"additionalProperties": false,
"properties": {
"license": {
"minLength": 1,
"type": "string"
},
"source": {
"enum": [
"reddit",
"web",
"reviews",
"x"
],
"type": "string"
},
"text": {
"maxLength": 280,
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"source",
"text",
"license"
],
"type": "object"
},
"type": "array"
},
"themes": {
"examples": [
[
{
"count": 4,
"label": "launch coverage",
"sentiment": "positive"
}
]
],
"items": {
"additionalProperties": false,
"properties": {
"count": {
"minimum": 0,
"type": "integer"
},
"label": {
"minLength": 1,
"type": "string"
},
"sentiment": {
"enum": [
"positive",
"neutral",
"negative"
],
"type": "string"
}
},
"required": [
"label",
"count",
"sentiment"
],
"type": "object"
},
"type": "array"
},
"totals": {
"additionalProperties": false,
"examples": [
{
"mentions": 12,
"sources_ok": 2
}
],
"properties": {
"mentions": {
"minimum": 0,
"type": "integer"
},
"sources_ok": {
"minimum": 0,
"type": "integer"
}
},
"required": [
"mentions",
"sources_ok"
],
"type": "object"
},
"warnings": {
"default": [],
"examples": [
[]
],
"items": {
"type": "string"
},
"type": "array"
}
},
"required": [
"ok",
"receipt_id",
"billed",
"totals",
"themes",
"samples"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}Example shape — generated from the schema, not a captured live response
{
"example": {
"billed": true,
"ok": true,
"receipt_id": "rcpt_01EXAMPLE000000000000000",
"samples": [
{
"license": "serper",
"source": "web",
"text": "Acme Widgets generally available for public evaluation.",
"url": "https://example.com/widget"
}
],
"themes": [
{
"count": 4,
"label": "launch coverage",
"sentiment": "positive"
}
],
"totals": {
"mentions": 12,
"sources_ok": 2
},
"warnings": []
},
"type": "string"
}Examples
curl "https://agentshelf.syntexa.ch/v1/mentions"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paidconst res = await fetch("https://agentshelf.syntexa.ch/v1/mentions");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}import httpx
res = httpx.get("https://agentshelf.syntexa.ch/v1/mentions")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerDetails
- Provider
- agentshelf.syntexa.ch
- Endpoint
- https://agentshelf.syntexa.ch/v1/mentions
- Machine-readable
/resources/55565.json