The Address Validation API allows developers to verify the accuracy of addresses by validating and standardizing them, and determining their geocode.
The Address Validation API allows developers to verify the accuracy of addresses by validating and standardizing them, and determining their geocode. On Nagent, Google Address Validation is exposed as a fully-configurable developer tools integration that any agent can call — 2 actions, and API key authentication. No code is required to wire Google Address Validation into your workflow — connect it once via the External Integrations panel and reuse it across every agent you build.
Agent builders use Google Address Validation to automate the kinds of tasks developer tools 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 Google Address Validation 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 Google Address Validation, with input parameters and output schema. Drop these into any step of an agent built in Helix.
GOOGLE_ADDRESS_VALIDATION_PROVIDE_VALIDATION_FEEDBACKTool to provide feedback on an address validation attempt. Use after completing an address validation sequence.
Input parameters
Outcome of the sequence of validation attempts. Must not be VALIDATION_CONCLUSION_UNSPECIFIED
ID of the response this feedback is for; the responseId from the first validateAddress 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
GOOGLE_ADDRESS_VALIDATION_VALIDATE_ADDRESSTool to validate and standardize addresses. Use when you need detailed parsing, geocode, and deliverability verdict of an address.
Input parameters
Address to validate; use addressLines for unformatted addresses.
Autocomplete session token (URL-safe base64, ≤36 chars).
Enable USPS CASS mode (US/PR only).
Preview language options.
For follow-up requests; omit on first request.
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 62 agents privately built on Nagent that already use Google Address Validation.
Build on Nagent
Connect Google Address Validation 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 Google Address Validation, and click "Connect Now." You'll authenticate with an API key — Nagent handles credential storage and refresh automatically. Once connected, Google Address Validation is available to any agent in your workspace.
No. Nagent provides no-code integration for every tool. Once Google Address Validation is connected, you configure its 2 actions directly in the agent builder UI — no API calls, no boilerplate, no schema management.
Helix — Nagent's agentic agent builder — lets you drop Google Address Validation 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 Google Address Validation event fires, the agent kicks off automatically.
Every Google Address Validation 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 Google Address Validation ships with 2 pre-built developer tools actions, you can layer custom logic around them inside Helix — pre/post-processing steps, conditional branches, retries, or stitching Google Address Validation together with other connected tools. For deeper customization, talk to our team about Nagent's Agentic AI Lab — forward-deployed engineers who build Google Address Validation-based workflows tailored to your business.