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Spondyr for AI agents

Spondyr manages correspondence templates and sends them out as email, SMS, fax, or postal mail, used by businesses that need consistent, API-driven customer communication. 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.

Connect SpondyrSee the 21 actions ↓
DocumentsAPI keyMCP + RESTspondyr.com
AUDIT LOG · SPONDYRPOLICY: acme-support
09:41:07 · claude · u_8f2read
spondyr.search_spondyrs
Search Correspondence✓ allowed · 212ms
09:41:08 · claude · u_8f2read
spondyr.get_event_types
List Event Types for Transaction Type✓ allowed · 164ms
09:41:09 · claude · u_8f2write
spondyr.create_condition
Create Condition✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
spondyr.recipient_delete
Delete Recipient✕ blocked · policy: deny
EVERY SPONDYR CALL, ON THE RECORD
01 · USE CASES

What agents do in Spondyr.

01

Send correspondence from a template

Deliver a piece of correspondence built from an approved template to a named recipient through the right channel.

02

Search past correspondence before resending

Search correspondence history to confirm what was already sent to a recipient before sending anything new.

03

Confirm before deleting a recipient

Look up a recipient's record before deleting it, since removing it drops their delivery history too.

02 · ACTIONS

21 Spondyr actions, graded by risk.

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

read

7

Look things up. Allowed by default.

  • spondyr.get_event_types
    List Event Types for Transaction Type
  • spondyr.search_spondyrs
    Search Correspondence
  • spondyr.search_filter_get
    Get Search Filter
  • spondyr.get_spondyr_status
    Get Spondyr Status
  • spondyr.search_filters_list
    List Search Filters
  • spondyr.search_filter_create
    Create Search Filter
  • spondyr.get_transaction_types
    Get Transaction Types

write

12

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

  • spondyr.create_condition
    Create Condition
  • spondyr.create_transaction_type
    Create Transaction Type
  • spondyr.sso_stub
    Create Spondyr SSO stub
  • spondyr.template_get
    Get Template
  • spondyr.recipient_get
    Get Recipient
  • spondyr.templates_list
    List Templates
  • spondyr.conditions_list
    List Conditions
  • spondyr.deliver_spondyr
    Deliver Spondyr correspondence
  • spondyr.recipients_list
    List Recipients
  • spondyr.event_type_update
    Update Event Type
  • spondyr.transaction_type_get
    Get Transaction Type
  • spondyr.transaction_type_update
    Update Transaction Type

destructive

2

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

  • spondyr.recipient_delete
    Delete Recipient
  • spondyr.search_filter_delete
    Delete Search Filter
03 · HOW IT WORKS

Spondyr in three steps.

  1. 01Your users connect SpondyrThey add their Spondyr api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “create Condition” can wait for the user, and “delete Recipient” can be denied outright.
  3. 03Any agent can actYour agent calls Spondyr 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('spondyr', {
  read: 'allow',
  write: 'ask',        // create_condition
  destructive: 'deny',  // recipient_delete
})

# 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 Spondyr connects.

Users add their Spondyr 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 Spondyr 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 Spondyr from any agent.

Claude
ChatGPT
Cursor
Codex
VS Code
OpenAI Agents SDK
Claude Agent SDK
Vercel AI SDK
Mastra
LangGraph
06 · RELATED

More documents apps.

Google Docs43 actionsActiveMerge13 actionsAirparser10 actionsAlgodocs3 actionsDocuSign338 actionsSharePoint Graph162 actionsSharePoint105 actionsDocumenso77 actions
ALL DOCUMENTS APPS →
07 · FAQ

Spondyr and Arc0, answered.

Q01

Can I use Spondyr with Claude, ChatGPT or Cursor?

Yes. Connect Spondyr 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 Spondyr actions you allow.

Q02

How do users connect Spondyr?

Users add their Spondyr 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 Spondyr actions can my agent take?

21 in total: 7 read, 12 write and 2 destructive, such as “create Condition”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in Spondyr?

Yes. Actions like “delete Recipient” 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 Spondyr too?

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

Get started

Plug Spondyr into your agent.

Your users connect Spondyr once, under your brand. Your agent gets 21 actions behind your policies, with every call on the record.

Connect SpondyrBrowse all apps →

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