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SSLMate Cert Spotter API for AI agents

Cert Spotter watches Certificate Transparency logs for a company's domains and flags any TLS certificate issued for them, including ones no one authorized. 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 SSLMate Cert Spotter APISee the 9 actions ↓
Security and identityAPI keyMCP + RESTsslmate.com
AUDIT LOG · SSLMATE CERT SPOTTER APIPOLICY: acme-support
09:41:07 · claude · u_8f2read
sslmate_cert_spotter_api.list_ct_issuances
List CT Issuances✓ allowed · 212ms
09:41:08 · claude · u_8f2read
sslmate_cert_spotter_api.get_certificate_v2
Get Certificate (API v2)✓ allowed · 164ms
09:41:09 · claude · u_8f2write
sslmate_cert_spotter_api.add_monitored_domain
Add Monitored Domain✓ approved · approved by user
09:41:12 · claude · u_8f2destructive
sslmate_cert_spotter_api.delete_monitored_domain
Delete Monitored Domain✕ blocked · policy: deny
EVERY SSLMATE CERT SPOTTER API CALL, ON THE RECORD
01 · USE CASES

What agents do in SSLMate Cert Spotter API.

01

Check for unauthorized certificates

List Certificate Transparency issuances for a domain to spot a certificate no one on the team requested.

02

List monitored domains

List the domains currently being watched, as a read-only check before adding or removing any.

03

Confirm before removing a monitored domain

Check a domain's issuance history before removing it from monitoring, since that stops future alerts for it.

02 · ACTIONS

9 SSLMate Cert Spotter API actions, graded by risk.

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

read

4

Look things up. Allowed by default.

  • sslmate_cert_spotter_api.list_ct_issuances
    List CT Issuances
  • sslmate_cert_spotter_api.get_certificate_v2
    Get Certificate (API v2)
  • sslmate_cert_spotter_api.get_monitored_domain
    Get Monitored Domain
  • sslmate_cert_spotter_api.list_monitored_domains
    List Monitored Domains

write

4

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

  • sslmate_cert_spotter_api.add_monitored_domain
    Add Monitored Domain
  • sslmate_cert_spotter_api.authorize_public_key
    Authorize Public Key
  • sslmate_cert_spotter_api.authorize_certificate
    Authorize Certificate
  • sslmate_cert_spotter_api.certspotter_get_event
    Get CertSpotter Event

destructive

1

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

  • sslmate_cert_spotter_api.delete_monitored_domain
    Delete Monitored Domain
03 · HOW IT WORKS

SSLMate Cert Spotter API in three steps.

  1. 01Your users connect SSLMate Cert Spotter APIThey add their SSLMate Cert Spotter API api key on Arc0 Connect, under your brand. It goes straight into the vault.
  2. 02You set the rulesReads run, writes like “add Monitored Domain” can wait for the user, and “delete Monitored Domain” can be denied outright.
  3. 03Any agent can actYour agent calls SSLMate Cert Spotter API 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('sslmate_cert_spotter_api', {
  read: 'allow',
  write: 'ask',        // add_monitored_domain
  destructive: 'deny',  // delete_monitored_domain
})

# 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 SSLMate Cert Spotter API connects.

Users add their SSLMate Cert Spotter API 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 SSLMate Cert Spotter API 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 SSLMate Cert Spotter API from any agent.

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

More security and identity apps.

1Password6 actionsAbuseIPDB6 actionsAnonyflow5 actionsDnsfilter170 actionsBorneo153 actionsDigicert101 actionsParadym69 actionsPersona69 actions
ALL SECURITY AND IDENTITY APPS →
07 · FAQ

SSLMate Cert Spotter API and Arc0, answered.

Q01

Can I use SSLMate Cert Spotter API with Claude, ChatGPT or Cursor?

Yes. Connect SSLMate Cert Spotter API 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 SSLMate Cert Spotter API actions you allow.

Q02

How do users connect SSLMate Cert Spotter API?

Users add their SSLMate Cert Spotter API 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 SSLMate Cert Spotter API actions can my agent take?

9 in total: 4 read, 4 write and 1 destructive, such as “add Monitored Domain”. Your policies decide which of them each agent may call.

Q04

Can I stop my agent from deleting things in SSLMate Cert Spotter API?

Yes. Actions like “delete Monitored Domain” 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 SSLMate Cert Spotter API too?

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

Get started

Plug SSLMate Cert Spotter API into your agent.

Your users connect SSLMate Cert Spotter API once, under your brand. Your agent gets 9 actions behind your policies, with every call on the record.

Connect SSLMate Cert Spotter APIBrowse all apps →

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