Metaphor is a neural search engine that enables developers to perform contextually relevant searches by understanding how people describe and share content online.
Metaphor is a neural search engine that enables developers to perform contextually relevant searches by understanding how people describe and share content online. On Nagent, Metaphor is exposed as a fully-configurable artificial intelligence integration that any agent can call — 1 action, and API key authentication. No code is required to wire Metaphor into your workflow — connect it once via the External Integrations panel and reuse it across every agent you build.
Agent builders use Metaphor to automate the kinds of tasks artificial intelligence 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 Metaphor 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 Metaphor, with input parameters and output schema. Drop these into any step of an agent built in Helix.
METAPHOR_GET_CONTENTSTool to retrieve parsed HTML/text contents and metadata for documents by their IDs." Use when you need to fetch the full text and metadata of multiple documents at once.
Input parameters
Character index to end returned text (exclusive). Must be >= 0.
List of Metaphor IDs or URLs to fetch content for. Must contain between 1 and 1000 items.
Character index to start returned text (inclusive). Must be >= 0.
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 96 agents privately built on Nagent that already use Metaphor.
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Connect Metaphor 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 Metaphor, and click "Connect Now." You'll authenticate with an API key — Nagent handles credential storage and refresh automatically. Once connected, Metaphor is available to any agent in your workspace.
No. Nagent provides no-code integration for every tool. Once Metaphor 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 Metaphor 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 Metaphor event fires, the agent kicks off automatically.
Every Metaphor 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 Metaphor ships with 1 pre-built artificial intelligence action, you can layer custom logic around them inside Helix — pre/post-processing steps, conditional branches, retries, or stitching Metaphor together with other connected tools. For deeper customization, talk to our team about Nagent's Agentic AI Lab — forward-deployed engineers who build Metaphor-based workflows tailored to your business.