Base-chain ecosystem news for Base-native agents, not the general crypto firehose

What it does

Base-chain ecosystem news for Base-native agents, not the general crypto firehose. Up to 12 Base-scoped headlines from the last 48h, each with its own permalink and publication timestamp, screened against the general /crypto-news feed; `screen` states what was dropped. The AI topic read is optional and is withheld, never padded with macro, when there is no Base coverage. Refreshed hourly from cache; a read past the freshness window pulls inline.

Tags: base · base ecosystem · crypto news · l2 · coinbase · bazaar · builder-code · offer-receipt · otto-content-receipt

Call contract

Method

GET

Input

query parameters

Output

json

Last paid call

2026-10-12

{}

{
  "data": {
    "generatedAt": "2026-09-02T09:00:18.499Z",
    "headlines": [
      {
        "author": "@jessepollak",
        "likes": 354,
        "publishedAt": "2026-09-01T18:19:01.000Z",
        "retweets": 28,
        "text": "ZEC and HYPE are now live on @base",
        "url": "https://x.com/jessepollak/status/2094851526909178404"
      },
      {
        "author": "@RAILGUN_Project",
        "likes": 151,
        "publishedAt": "2026-09-01T16:30:27.000Z",
        "retweets": 22,
        "text": "Protocol Security Request #27 approved. RAILGUN is deploying on @base.",
        "url": "https://x.com/RAILGUN_Project/status/2094824553191876869"
      }
    ],
    "report": "BASE ECOSYSTEM REPORT: Aerodrome shipped its v3 gauge overhaul (veAERO voting live Thursday); Base announced builder fee-sharing for top apps, driving a 14% jump in deployed contracts w/w; USDC native supply on Base crossed $4.2B.",
    "reportStatus": "available",
    "screen": {
      "candidates": 40,
      "droppedGeneralFeedDuplicate": 0,
      "droppedLowEngagement": 1,
      "droppedNotBaseScoped": 0,
      "droppedOutsideWindow": 20,
      "droppedPromotionLure": 0,
      "droppedUndated": 0,
      "minEngagement": 5,
      "windowHours": 48
    },
    "sourceCount": 61,
    "sources": {
      "generalCryptoFeed": 1,
      "historicalContext": 1,
      "screenedHeadlineCandidates": 40,
      "topicTweets": 59
    },
    "topic": "Base ecosystem"
  },
  "meta": {
    "degraded": false,
    "generatedAt": "",
    "stalenessSec": 0,
    "validUntil": ""
  },
  "status": "success"
}

Use with an agent

1. Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
2. Inspect. Fetch /resources/25859.json for the price and payment options.
3. Pay. Call GET https://x402.ottoai.services/base-ecosystem-news. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
4. Execute. The provider returns 200 with 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, Solana, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price

$0.001 / request

Protocol

x402 v2

Auth

No account or API key. Pay per request.

Networks

Base, Solana

Demand

8 calls · 6 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "amountUsd": 0.001,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "1000",
    "amountUsd": 0.001,
    "maxTimeoutSeconds": 300
  }
]

Schemas

{
  "properties": {
    "example": {
      "properties": {
        "data": {},
        "meta": {
          "type": "object"
        },
        "reason": {
          "description": "status=unavailable only; every >=400 is UNCHARGED",
          "type": "string"
        },
        "status": {
          "enum": [
            "success",
            "unavailable"
          ],
          "type": "string"
        }
      },
      "required": [
        "status"
      ],
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}

{
  "example": {
    "data": null,
    "meta": {},
    "reason": "string",
    "status": "success"
  },
  "type": "string"
}

Examples

curl "https://x402.ottoai.services/base-ecosystem-news"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

const res = await fetch("https://x402.ottoai.services/base-ecosystem-news");
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://x402.ottoai.services/base-ecosystem-news")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider

x402.ottoai.services

Endpoint

https://x402.ottoai.services/base-ecosystem-news

Machine-readable

/resources/25859.json