Use Afterwren MCP with Claude Desktop and claude.ai
Retired-API replacements: Clearbit-style company autocomplete, logos, profiles; geocoding; books.
Remote MCP server (Streamable HTTP), nothing to install. Free: 100 free calls/day · Paid: $5 pack; $19/mo; x402 $0.002/call
Set it up
- Open Customize › Connectors (on Team and Enterprise, an owner adds it under Organization settings › Connectors).
- Click + Add, then Add custom connector.
- Name it Afterwren and paste the server URL: https://afterwren.cybermaxtools.com/mcp?via=use-with-claude-desktop
- Under Authentication choose No sign in.
- For a paid key, add a request header named x-api-key with your key; leave it out for the free tier.
- Click Add, then enable the connector for your chat.
Claude stores fixed request headers encrypted. On Team and Enterprise plans everyone in the workspace shares that credential.
- no file: remote servers are added as custom connectors in Claude's settings
Tools you get
Endpoint checked 2026-10-09: https://afterwren.cybermaxtools.com/mcp answered an MCP initialize (protocol 2025-06-18) and tools/list with 7 tools, all marked read-only. No key was used and no tool was called.
| Tool | What it does | Required inputs |
|---|---|---|
company_suggest | Company name or prefix to a list of {name, domain, logo, description}, best-known first (Clearbit Autocomplete replacement). | query |
company_logo | The best logo/icon URL for a domain from the company's own site, with alternatives (Clearbit Logo replacement). | domain |
company_profile | Name, description, logo, social links, email provider (MX/SPF) and Wikidata facts (founded, HQ, industry, employees, ticker) for a domain. | domain |
geocode | Address or place to lat/lng with city, state, postal, country; US results include county, tract and block FIPS. | q |
reverse_geocode | Coordinates to the nearest address and, in the US, county/tract/block FIPS. | lat, lng |
book_search | Books by title/author or ISBN: authors, year, ISBNs, pages, rating, cover (Goodreads API replacement, Open Library data). | none |
encyclopedia_search | Wikipedia full-text search: titles, URLs and snippets (for grounding after the Bing Search API retirement). | q |
Test the endpoint from a terminal
This lists the tools without a key and without calling any of them:
curl -s https://afterwren.cybermaxtools.com/mcp \
-H 'content-type: application/json' \
-H 'accept: application/json, text/event-stream' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}'If it does not work
- Custom connectors connect from Anthropic's cloud, not your computer; our servers are public, so no allowlisting is needed.
- Free plans can add one custom connector.
- To change the URL or header, remove the connector and add it again.
- The free tier has a daily limit (see the pricing line above); a paid key raises it.
Afterwren in other clients
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