# Pricing — agentkit.md

---
title: Pricing — agentkit.md
description: The agentkit.md registry and API are free.
---

## Pricing

Everything on agentkit.md is free. The registry, the REST API, and the MCP server cost nothing, require no account, and need no API key: every read is keyless. Just call it.

To keep the service fast for everyone, endpoints are rate-limited fairly per client. If you are building something that needs higher throughput, email [hello@agentkit.md](mailto:hello@agentkit.md) — we would rather help than have you scrape.

### Plans

There is exactly one plan, and it is the free one. No tiers, no seats, no trials, no credit card, no account.

| Plan | Price | Rate limit | Includes |
| --- | --- | --- | --- |
| Free | $0 / forever | 120 requests per 60s per client (see `RateLimit` headers) | Full card catalog, REST API, search (GET + POST, idempotent), batch lookups, NLWeb `/ask`, MCP registry + docs servers, llms.txt, markdown twins, OpenAPI spec, feeds |

### What costs nothing

- **Card catalog** — 1,633 plugin cards, filterable and paginated.
- **REST API** — `/api/v1/*`: cards, search, batch, stats, harnesses. Every read keyless.
- **MCP servers** — registry tools at `/mcp`, documentation tools at `/mcp/docs`.
- **NLWeb** — `/ask` natural-language queries, SSE streaming included.
- **Discovery** — llms.txt, sitemap, ARD catalog, feeds, OpenAPI 3.1 spec.

### What is rate-limited

All endpoints share one fair-use window per client: 120 requests per 60 seconds, per edge node. Responses carry `RateLimit` headers so agents can self-throttle; exceeding the window returns `429` with a `Retry-After` header and a problem+json body. There is no paid tier that lifts the limit — if your workload genuinely needs more, email [hello@agentkit.md](mailto:hello@agentkit.md) and we will talk.

### What is not for sale

- The `POST /cards` generation endpoint is internal to the build pipeline and is not part of the public API.
- There are no ads, no sponsored placements, and no paid listing slots in the catalog. A card is in the registry because it met the inclusion criteria, never because someone paid.