PayChasers for AI agents

PayChasers automates payment reminders and follow-ups for overdue client accounts. Freelancers and small businesses use it to chase late invoices without awkward manual emails. 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.

Finance and accountingAPI keyMCP + RESTpaychasers.com
AUDIT LOG · PAYCHASERSPOLICY: acme-support
09:41:07 · claude · u_8f2read
paychasers.list_chases
List Chases✓ allowed · 212ms
09:41:08 · claude · u_8f2read
paychasers.list_clients
List Clients✓ allowed · 164ms
09:41:09 · claude · u_8f2write
paychasers.create_chase
Create Chase✓ approved · approved by user
EVERY PAYCHASERS CALL, ON THE RECORD
01 · USE CASES

What agents do in PayChasers.

01

Send a follow-up on an overdue chase

Trigger a follow-up reminder for a client whose payment is still outstanding.

02

Check open chases read-only

List active chases to see which overdue accounts still need attention.

03

Mark a chase as paid

Update a chase to paid once a client's overdue invoice has been settled.

02 · ACTIONS

7 PayChasers actions, graded by risk.

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

read

3

Look things up. Allowed by default.

  • paychasers.list_chases
    List Chases
  • paychasers.list_clients
    List Clients
  • paychasers.get_current_user
    Get Current User

write

4

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

  • paychasers.create_chase
    Create Chase
  • paychasers.create_client
    Create Client
  • paychasers.send_follow_up
    Send Follow-Up
  • paychasers.mark_chase_paid
    Mark Chase Paid

destructive

0

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

  • No destructive actions.
03 · HOW IT WORKS

PayChasers in three steps.

  1. 01Your users connect PayChasersThey add their PayChasers api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, and writes like “create Chase” can wait for the user to approve.
  3. 03Any agent can actYour agent calls PayChasers 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('paychasers', {
  read: 'allow',
  write: 'ask',        // create_chase
  destructive: 'deny',  
})

# 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 PayChasers connects.

Users add their PayChasers 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 PayChasers 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 PayChasers from any agent.

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

PayChasers and Arc0, answered.

Q01

Can I use PayChasers with Claude, ChatGPT or Cursor?

Yes. Connect PayChasers 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 PayChasers actions you allow.

Q02

How do users connect PayChasers?

Users add their PayChasers 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 PayChasers actions can my agent take?

7 in total: 3 read, 4 write and 0 destructive, such as “create Chase”. Your policies decide which of them each agent may call.

Q04

Can I make my agent read-only in PayChasers?

Yes. Allow read actions and deny writes in the PayChasers policy. Your agent can still look things up, and any write it attempts is blocked and logged.

Q05

Can my own backend call PayChasers too?

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

Get started

Plug PayChasers into your agent.

Your users connect PayChasers once, under your brand. Your agent gets 7 actions behind your policies, with every call on the record.

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