mcp-flaresolverr

flare_session_create

Create a persistent browser session to reuse across FlareSolverr requests, reducing browser launches and speeding up fetching pages behind anti-bot protection.

Instructions

Create a persistent browser session. This speeds up subsequent requests since the browser doesn't need to launch a new instance for every request.

Tool call template

This tool declares no required parameters. Add optional parameters from the input schema as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {},
    "name": "flare_session_create"
  }
}

Input Schema

Name	Required	Description	Default
`proxy`	No	Proxy configuration for this session
`session`	No	Custom session ID. If not provided, a random UUID will be generated

Schema Changelog

Changes observed during successful MCP inspections.

First observedv1.0.0Oct 2, 2026

TDQS

B3.1/5.0

Behavior2/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full behavioral burden. It discloses persistence and a performance rationale, but omits the lifecycle facts an agent needs: whether the session expires, whether it consumes resources that must be released, and whether the returned session identifier must be supplied to subsequent requests.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Two tight sentences with the core action front-loaded and the rationale second; nothing is padded. It is efficient, though it could have traded a few words for the missing lifecycle detail.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness2/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a state-creating tool with no annotations, no output schema, and a nested proxy object, the description is thin. An agent cannot tell how the new session ID is surfaced or how to consume it in flare_get/flare_post, nor whether cleanup is required, which are essential for correct invocation.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, including descriptions for the nested proxy object and the session ID parameter, so the schema does the heavy lifting. The description adds no parameter-level detail (e.g., how the generated session ID is returned or reused), so the baseline of 3 applies.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb and resource ('Create a persistent browser session'), which is clear enough to distinguish from flare_session_destroy and flare_session_list. It does not explicitly name siblings or contrast its scope, so it stops short of a 5.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The second sentence implies when to use it (before a series of requests, to avoid relaunching the browser), which is useful implied guidance. However, there is no explicit when-not, no mention of pairing with flare_session_destroy for cleanup, and no note on whether sessions must be reused via the returned ID.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

Deploy Server