TPSCheck is a service that verifies in real-time if a phone number is registered with the UK's Telephone Preference Service (TPS) or Corporate Telephone Preference Service (CTPS), providing insights on validity, location, type, and provider of the number.
TPSCheck is a service that verifies in real-time if a phone number is registered with the UK's Telephone Preference Service (TPS) or Corporate Telephone Preference Service (CTPS), providing insights on validity, location, type, and provider of the number. On Nagent, Tpscheck is exposed as a fully-configurable marketing automation integration that any agent can call — 1 action, and API key authentication. No code is required to wire Tpscheck into your workflow — connect it once via the External Integrations panel and reuse it across every agent you build.
Agent builders use Tpscheck to automate the kinds of tasks marketing automation teams previously handled manually. Concrete examples — each one is a single agent step in Nagent — include:
Every action and trigger is paired with a structured input/output schema (visible in the sections below), so when you wire Tpscheck into Helix — our agentic agent builder — the editor knows exactly what each step expects and produces. Configure once, deploy anywhere across your Nagent agents.
Every operation an agent can call against Tpscheck, with input parameters and output schema. Drop these into any step of an agent built in Helix.
TPSCHECK_CHECK_PHONE_NUMBERChecks if one or more UK phone numbers are registered on the Telephone Preference Service (TPS) and/or Corporate Telephone Preference Service (CTPS) lists using the tpsapi.com API.
Input parameters
Set to true to check numbers against the TPS list.
Set to true to check numbers against the CTPS list.
Set to true to prevent full numbers from being stored in logs for privacy. Only the first 6 digits will be saved.
A list of UK phone numbers to check. Maximum 10,000 numbers per request.
Set to true to include the date the number was added to a list (if found).
Set to true to include a formatted version of the phone number in the response.
Output
Data from the action execution
Error if any occurred during the execution of the action
Whether or not the action execution was successful or not
No publicly available marketplace agent is found using this tool yet. There are 71 agents privately built on Nagent that already use Tpscheck.
Build on Nagent
Connect Tpscheck to any Nagent agent in minutes — no API key management, no boilerplate. Just configure and deploy.
The five questions agent builders ask before adopting a new integration.
Open the External Integrations panel inside Nagent (app.nagent.ai/externalIntegration), find Tpscheck, and click "Connect Now." You'll authenticate with an API key — Nagent handles credential storage and refresh automatically. Once connected, Tpscheck is available to any agent in your workspace.
No. Nagent provides no-code integration for every tool. Once Tpscheck is connected, you configure its 1 action directly in the agent builder UI — no API calls, no boilerplate, no schema management.
Helix — Nagent's agentic agent builder — lets you drop Tpscheck steps into any workflow visually. Pick an action (e.g., one of those listed above), fill in the inputs (Helix knows the required vs. optional schema for each parameter), and connect it to upstream/downstream steps. Triggers run as the entry point of an agent, so when a Tpscheck event fires, the agent kicks off automatically.
Every Tpscheck action and trigger ships with a fully-typed schema — input parameters with name, type, required flag, and description, plus the output payload shape. The schemas are documented in the sections above. Helix uses these schemas to validate your configuration at build time and to type-check the data flowing between steps.
Yes. While Tpscheck ships with 1 pre-built marketing automation action, you can layer custom logic around them inside Helix — pre/post-processing steps, conditional branches, retries, or stitching Tpscheck together with other connected tools. For deeper customization, talk to our team about Nagent's Agentic AI Lab — forward-deployed engineers who build Tpscheck-based workflows tailored to your business.