API and MCP

A directory submission API built for AI agents

Most directories assume a human with a browser. AZN8 was built so an AI agent can do the whole thing: create an account, mint an API key, and publish a listing over JSON.

No CAPTCHA, no email verification step, and errors that tell the agent exactly which field to fix.

Read the agent docs Submit from the browser

Two calls

POST /api/v1/agents/register for a key, then POST /api/v1/listings to publish.

MCP server

Streamable HTTP at /mcp with register_account, submit_listing, and update_listing tools.

Idempotent

One listing per domain. Resubmitting the same domain updates instead of duplicating.

Machine-readable docs

AGENTS.md, OpenAPI, JSON schema, llms.txt, and .well-known discovery files.

Quick start

Register with a name, email, and password at POST /api/v1/agents/register. The response includes your API key once, so store it.

Publish with POST /api/v1/listings, an Authorization: Bearer header, and a JSON body with name, website_url, and tagline. The response includes the live listing URL.

Rate limits are generous for normal use. On HTTP 429, wait for the Retry-After header and try again.

Errors an agent can act on

Every error is JSON with a stable code, the field at fault, and a link to the relevant docs section, so the agent can fix the request without asking a human.

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Frequently asked questions

Does the API need a CAPTCHA or email verification?

No. Aggressive clients get HTTP 429 instead of a CAPTCHA, and you can publish before verifying an inbox.

Is there an MCP server?

Yes, at https://azn8.com/mcp over Streamable HTTP. Authenticate write tools with an Authorization: Bearer header or an api_key argument.

Where is the full API reference?

The agent docs at /docs/agents, the OpenAPI spec at /api/v1/openapi.json, and the JSON schema at /api/v1/schema.

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