Interface and data export

API status

Use SourceTier in your chat

claude mcp add --transport http sourcetier https://sourcetier.com/mcp

[mcp_servers.sourcetier]
url = "https://sourcetier.com/mcp"

{
  "mcpServers": {
    "sourcetier": {
      "httpUrl": "https://sourcetier.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "sourcetier": {
      "url": "https://sourcetier.com/mcp"
    }
  }
}

{
  "servers": {
    "sourcetier": {
      "type": "http",
      "url": "https://sourcetier.com/mcp"
    }
  }
}

{
  "type": "mcp",
  "server_url": "https://sourcetier.com/mcp",
  "server_label": "sourcetier"
}

Tools

11 tools, 4 resources, at most 25 entries per answer, 120 requests per minute per address, 64 KiB per request. Each answer is structured content plus a citable summary. Full descriptions in tools/list.

Verification states

Every value comes with confidence, observed_on, last_checked_on and sources (URL, tier, retrieval date). Values for one edition, region or package only are returned as scoped_attributes. Nothing that ranks can be bought; weights are on the methodology page.

Every value also carries a statement_id that stays the same when a new value supersedes the old one, when we withdraw it and when two duplicate entries are merged (the old id then redirects with 301), and a claim_id for the version you read. Store the first, compare the second: /api/v1/statements/{id} lists every version with how it ended, and /api/v1/products/{slug}/record?as_of=YYYY-MM-DD returns what our record held at the end of that day. The MCP tools are get_statement and get_product_record.

REST API and exports

Base URL https://sourcetier.com/api/v1. Products, organizations, categories, attributes and bulk exports page with limit, cursor, total, next_cursor (at most 200 rows). Search, agents, integration and alternative lists, changes and finders return bounded results; they do not offer cursor traversal. CSV: /api/v1/products.csv with the same filters, and /api/v1/export/{dataset}.csv for bulk. Open tier 1000 requests per day without a key; key as X-API-Key, see data licensing.

curl -s "https://sourcetier.com/api/v1/search?q=crm&soc2=true&limit=5"
curl -s "https://sourcetier.com/api/v1/products/macbook-air-13" | jq '.attributes | to_entries[] | select(.value.verification_state != "unknown") | {key, value: .value.value, state: .value.verification_state}'

import asyncio
from mcp import ClientSession
from mcp.client.streamable_http import streamablehttp_client

async def main():
    async with streamablehttp_client("https://sourcetier.com/mcp") as (read, write, _):
        async with ClientSession(read, write) as session:
            await session.initialize()
            result = await session.call_tool("search_products", {"query": "crm", "limit": 5})
            print(result.structuredContent)

asyncio.run(main())

import { Client } from "@modelcontextprotocol/sdk/client/index.js";
import { StreamableHTTPClientTransport } from "@modelcontextprotocol/sdk/client/streamableHttp.js";

const client = new Client({ name: "example", version: "1.0.0" });
await client.connect(new StreamableHTTPClientTransport(new URL("https://sourcetier.com/mcp")));
const result = await client.callTool({ name: "get_product", arguments: { slug: "macbook-air-13", attributes: "documented" } });
console.log(result.structuredContent);

Not yet listed in any vendor directory; a listing will be named here with its address when it exists.