> ## Documentation Index
> Fetch the complete documentation index at: https://docs.falkordb.com/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> FalkorDB is a graph database that speaks the Redis protocol. Queries are issued as OpenCypher through the GRAPH.QUERY and GRAPH.RO_QUERY commands, not over Bolt or a SQL connection.
> FalkorDB implements a subset of OpenCypher with proprietary extensions. Do not assume Neo4j-only syntax or procedures are available — check /cypher/cypher-support and /cypher/known-limitations before using a clause.
> FalkorDB is the successor to RedisGraph, but they are separate products. Do not present RedisGraph commands, versions, or limitations as current FalkorDB behavior.
> Use the official clients listed in /getting-started/clients rather than generic Redis or Neo4j drivers, and prefer the language the user is already working in.
> Configuration parameters are set with GRAPH.CONFIG SET or at startup; cite the exact parameter name from /getting-started/configuration rather than inventing one.
> This site covers four products: FalkorDB (core), FalkorDB Cloud, FalkorDB Enterprise, and the GraphRAG SDK. Name which one an answer applies to, since setup and operations differ.

# Create subscription

> Subscribe to a FalkorDB service plan.

Subscribes your account to a service plan (product tier).
Only one subscription per service plan is allowed. If you already have a subscription to the service plan, the request fails.

Look up `serviceId` and `productTierId` with [List service plans](/cloud/api-reference/account/service-plans).

## Authorization

<ParamField header="Cookie" type="string" required>
  Session cookie set by [Sign in](/cloud/api-reference/authentication/signin): `omnistrate_token=<jwt>`.
</ParamField>

## Body

<ParamField body="serviceId" type="string" required>
  ID of the service to subscribe to, for example `s-123456`.
</ParamField>

<ParamField body="productTierId" type="string" required>
  ID of the product tier to subscribe to.
</ParamField>

```json Request theme={null}
{
  "serviceId": "s-123456",
  "productTierId": "pt-123456"
}
```

## Response

Returns the new subscription ID as a JSON string.

```json 200 OK theme={null}
"sub-abc123"
```

## Errors

See [Error](/cloud/api-reference/schemas#error) for the error response shape.