# Agent Verifier API

> AI agent verification API and automation guardrail for validating generated JSON, URLs, emails, claims, and output rules before autonomous agents act.

Agent Verifier is useful for AI agents, MCP tools, n8n workflows, Make/Zapier automations, lead-generation bots, CRM enrichment agents, and SaaS products that need machine-readable validation before writing data, sending messages, calling tools, or trusting model output.

## Links

- Homepage: https://agent-verifier.onrender.com/
- API docs: https://agent-verifier.onrender.com/docs
- OpenAPI schema: https://agent-verifier.onrender.com/openapi.json
- Privacy Policy: https://agent-verifier.onrender.com/privacy
- Terms of Service: https://agent-verifier.onrender.com/terms
- Refund Policy: https://agent-verifier.onrender.com/refund

## Core endpoints

- POST /v1/verify/json — validate AI-generated JSON and required keys/schema.
- POST /v1/verify/url — validate URLs, HTTPS, reachability, and expected text.
- POST /v1/verify/email — validate email syntax and optional DNS checks.
- POST /v1/verify/business — validate business name/location/website signals.
- POST /v1/verify/claim — validate a factual claim against optional sources.
- POST /v1/score-output — score generated output against required terms, forbidden terms, format, and length.
- GET /v1/usage — retrieve usage for the current API key.

## Authentication

Protected API endpoints require an API key using the X-API-Key header or Authorization bearer token.

Example:

```http
POST /v1/verify/json
X-API-Key: av_...
Content-Type: application/json
```

## Pricing

- Beta: $49/month for 5,000 checks/month.
- Standard: $99/month for 50,000 checks/month.

Checkout creates an API key automatically after payment.

## Example use cases

- Lead-generation agent guardrail before writing records to a CRM.
- n8n or Make automation validation before sending outbound messages.
- MCP/tool-calling safety check before an agent calls a tool with generated JSON.
- SaaS workflow validation before accepting model-generated data.