Connect

Connect

Connect

OpenAPI

OpenAPI

OpenAPI

to your product and 1000+ apps, powered by AI Agents.

to your product and 1000+ apps, powered by AI Agents.

to your product and 1000+ apps, powered by AI Agents.

Generic connector to call OpenAPI-described endpoints dynamically.

Generic connector to call OpenAPI-described endpoints dynamically.

Get Started

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What This Tool Does

Real examples of how the connector helps your AI agent take action; like sending messages, updating records, or syncing data across tools.

Real-Time Lookup

Connect to APIs using OpenAPI specifications to enable real-time integration with RESTful services.

Example

"Trigger workflows from a third-party tool using OpenAPI definition when a new order is placed."

Memory Recall

Track unresponsive or deprecated API endpoints.

Example

"Log failing endpoints fetched via OpenAPI schema."

Instant Reaction

Alert developer if OpenAPI schema fetch fails.

Example

"Send alert if OpenAPI spec retrieval from service times out."

Autonomous Routine

Monitor schema changes and endpoint accessibility.

Example

"Run schema diff check every 12 hours and log changes."

Agent-Initiated Action

Reload latest schema version automatically.

Example

"Pull fallback schema if live OpenAPI is unreachable."

Connect with Apps

See which platforms this connector is commonly used with to power cross-tool automation.

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Postman

Run API test cases

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Slack

Notify failures

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Google Sheets

Log request history

Try It with Your Agent

Example Prompt:

"When an OpenAPI endpoint fails health check, notify devs in Slack and log the incident in Sheets."

How to Set It Up

Quick guide to connect, authorize, and start using the tool in your Fastn UCL workspace.

1

Connect OpenAPI in Fastn UCL: Navigate to the Connectors section and select OpenAPI, then click Connect.

2

Authenticate using your OpenAPI spec URL and token (if needed).

3

Enable “call_endpoint” and “list_methods” in the Actions tab.

4

Use the AI Agent to dynamically invoke OpenAPI-compatible endpoints.

Why Use This Tool

Understand what this connector unlocks: speed, automation, data access, or real-time actions.

  • Enables rapid API integration

  • Automates endpoint testing

  • Supports API-first development

UCL

The fastest way to embed the integrations your users need—seamlessly connecting APIs, legacy systems, enterprise workflows, and everything in between

Contact

Address

522 Congress Avenue,

Austin, TX 78701

Copyright © 2025 Fastn, Inc.

UCL

Contact

Adress

522 Congress Avenue,

Austin, TX 78701

Copyright © 2025 Fastn, Inc.

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