Goodbits for AI agents

Goodbits helps teams turn the best links their team and customers are reading into curated newsletters. Marketers fold it into their existing outreach and campaign workflow instead of running it separately. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.

MarketingAPI keyMCP + RESTgoodbits.io
AUDIT LOG · GOODBITSPOLICY: acme-support
09:41:07 · claude · u_8f2read
goodbits.get_newsletter
Get Newsletter Info✓ allowed · 212ms
09:41:09 · claude · u_8f2write
goodbits.create_link
Create Link✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
goodbits.delete_subscriber
Delete Subscriber✕ blocked · policy: deny
EVERY GOODBITS CALL, ON THE RECORD
01 · USE CASES

What agents do in Goodbits.

01

Add a link to the newsletter queue

Save an article link with a note so it is queued for the next curated newsletter issue.

02

Check newsletter subscriber info

Look up the current newsletter's subscriber count and settings before drafting a new issue.

03

Remove a subscriber with confirmation

Delete a subscriber record only after confirming the unsubscribe request is genuine.

02 · ACTIONS

5 Goodbits actions, graded by risk.

Every Goodbits action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.

read

1

Look things up. Allowed by default.

  • goodbits.get_newsletter
    Get Newsletter Info

write

3

Create and change things. Allow, or ask the user first.

  • goodbits.create_link
    Create Link
  • goodbits.create_subscriber
    Create Subscriber
  • goodbits.update_subscriber_status
    Update Subscriber Status

destructive

1

Delete, cancel or archive. Ask first, or deny outright.

  • goodbits.delete_subscriber
    Delete Subscriber
03 · HOW IT WORKS

Goodbits in three steps.

  1. 01Your users connect GoodbitsThey add their Goodbits api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “create Link” can wait for the user, and “delete Subscriber” can be denied outright.
  3. 03Any agent can actYour agent calls Goodbits through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
POLICY.TS
await arc0.policies.set('goodbits', {
  read: 'allow',
  write: 'ask',        // create_link
  destructive: 'deny',  // delete_subscriber
})

# Claude Code: the same connection, one URL
$ claude mcp add --transport http arc0 \
    https://mcp.arc0.ai/u/u_8f2
04 · AUTH AND DATA

How Goodbits connects.

Users add their Goodbits api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

The same Goodbits connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →

AUTH
API key
CREDENTIALS
Per-tenant encrypted vault
MODEL SEES
Results only, never credentials
AUDIT LOG
Every call, on every plan
05 · WORKS WITH

Use Goodbits from any agent.

Claude
ChatGPT
Cursor
Codex
VS Code
OpenAI Agents SDK
Claude Agent SDK
Vercel AI SDK
Mastra
LangGraph
07 · FAQ

Goodbits and Arc0, answered.

Q01

Can I use Goodbits with Claude, ChatGPT or Cursor?

Yes. Connect Goodbits to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the Goodbits actions you allow.

Q02

How do users connect Goodbits?

Users add their Goodbits api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.

Q03

Which Goodbits actions can my agent take?

5 in total: 1 read, 3 write and 1 destructive, such as “create Link”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Goodbits?

Yes. Actions like “delete Subscriber” are graded destructive. Set destructive actions to deny, or to ask so the user approves each one, and blocked calls still show up on the audit log.

Q05

Can my own backend call Goodbits too?

Yes. The same Goodbits connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.

Get started

Plug Goodbits into your agent.

Your users connect Goodbits once, under your brand. Your agent gets 5 actions behind your policies, with every call on the record.

Free to build · MCP + REST · Audit log on every plan