Ask Claude or ChatGPT about a fish, with TankBud's numbers.
TankBud runs an MCP server over its public catalog. Add it to Claude or ChatGPT and the assistant can search the catalog, read care ranges, check tank mates and run the stocking calculator. Connect your account too and it can log tests, add fish and plants, and keep your reminders. Every answer links the TankBud page it came from.
Free · Catalog needs no account
The address
Paste this URL wherever your assistant asks for an MCP server or a custom connector. It needs no key and no sign-in.
https://tankbud.com/mcp
Add it to Claude
- Open claude.ai, then Settings, then Connectors.
- Choose Add custom connector.
- Name it TankBud and paste the address above. Leave the advanced fields empty.
- Click Add. The connector is available in new chats on the web, in the desktop app and on your phone.
Custom connectors work on every Claude plan. A free account can add one.
Add it to ChatGPT
- Open ChatGPT on the web, then Settings, then Apps and connectors.
- Under Advanced settings, turn on Developer mode.
- Choose Create, name it TankBud, paste the address and pick No authentication.
- In a chat, enable TankBud from the plus menu.
Developer mode is available on Plus, Pro, Business, Enterprise and Education plans.
What you can ask
- “What water does a neon tetra want?”
- “Can I keep amano shrimp with a betta?”
- “Is ten neon tetras and six panda corys too much for a 20 gallon?”
- “Find peaceful freshwater fish under two inches for a 10 gallon.”
- “What is KH?”
The assistant picks the tool. A tank mate answer follows the same rule as the catalog pages. TankBud recommends a pair only with positive evidence, and says so when it has none.
The tools
| Tool | What it does |
|---|---|
| search_catalog | Finds species and plants by common, scientific or trade name. |
| find_species | Lists species by traits: water type, temperament, adult size, minimum tank, family and more. |
| find_plants | Lists plants by light, CO2, placement, growth rate and difficulty. |
| get_species | Returns one species' care ranges, group size, varieties, recommended tank mates and page link. |
| get_plant | Returns one plant's light, CO2, placement, ranges, cultivars and page link. |
| check_tank_mates | Gives a verdict for every pair in a group, with the reason, by TankBud's tank mate rules. |
| estimate_stocking | Runs the stocking calculator for a tank size and a stock list. |
| define_term | Returns a glossary entry with its definition and link. |
Your own tanks
A second address works on your account. Add it the same way, and the assistant asks you to sign in to TankBud and approve the connection once. It then acts as you in every workspace you belong to.
https://app.tankbud.com/mcp
- “Log pH 7.4 and 78°F on the 40 breeder.”
- “What is due on my tanks this week?”
- “Add six neon tetras to the 20 gallon.”
- “Switch the 29 gallon to the blackwater guidance profile.”
- “Start a service report for Blue Reef Dental's tanks.”
| Group | What it does |
|---|---|
| Workspaces and tanks | Lists your workspaces and tanks, shows a tank's dashboard, creates and edits tanks, including the guidance profile. |
| Water tests | Lists, logs and corrects water tests. |
| Livestock, plants, equipment, materials | Adds species and plants linked to their catalog entries, or as plain records when the catalog lacks them. Adds equipment, substrate, hardscape and decor, and edits what is there. |
| Reminders and logs | Lists what is due, creates, edits, completes and snoozes reminders, and keeps the tank log. |
| Planner | Lists plans, adds and edits planned items, and converts a plan into a tank. |
| Clients and reports | For a business workspace: clients, service reports, and sending a report. |
| Invoices | For a business workspace: reads invoices. Nothing here drafts, sends or changes one. |
| Archiving | Archives a record after the assistant asks you. The app can restore it. |
It creates, edits and archives. It never deletes, and it never drafts, sends or changes an invoice. Disconnect it any time under Settings, Connected assistants.
What it does not do
The catalog address reads the public catalog and nothing else. The account address sees only what you approved, and stops the moment you disconnect it. Where-to-buy links stay on the site. Every catalog tool is marked read-only.