PromptBrake Free Tools
Claude connectorCommunityFree AI test helpers: injection inputs, OWASP mapping, release plans, response checks and agent tool-call test packs.
Prepare tests and release plans for your own chatbot, agent or LLM API from Claude. Five free MCP tools provide prompt-injection inputs, OWASP LLM risk mappings, release planning, response-text test packs and agent tool-call test packs.
The MCP prepares artifacts; it does not contact your target or execute tests. Response checks compare text. Tool-call packs run with PromptBrake Action v0.2.0 after one-time staging application dispatcher capture, checking forbidden invocations and required typed arguments. Missing or incomplete capture cannot pass. Captured calls do not prove successful backend effects or replace tool permission enforcement. Licensed local runners add retained evidence and release gates.
No PromptBrake account or API key is required to use these MCP tools. Tool inputs/results are not stored; operational request metadata is logged. Use synthetic data and only test systems you own or are authorized to test. Setup: https://promptbrake.com/free-tools/agent-tool-call-checks
- Tools
- 5
exposed by this connector
Movement
From our daily snapshots over the last 30 days.
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Popularity score
Trending score
3 listing changes logged · latest Oct 6: Description, Tools, One-liner. See what changed
In its categories
How this connector compares with others in the same category. Positions are counted within the category, not across the whole directory.
Productivity1,728th of 4,952 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 1726 |  HtAG Spatial | 6,585 | 5,727 #1782 | 294places down |
| 1727 | 6,585 | 4,594 #1840 | 161places down | |
| 1728 | 6,585 | — | 241places down | |
| 1729 | 6,570 | 7,474 #1681 | 203places down | |
| 1730 | 6,570 | 25,183 #530 | 99places up |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 |  Intuit QuickBooks Labs | 57,784,459 | 13,209 #289 | — |
| 2 |  Adspirer Social Ads | 30,557,087 | 14,248 #216 | — |
| 3 | 15,667,540 | 15,307 #141 | 1places down | |
| 4 |  Hevy | 1,955,298 | 8,690 #1014 | — |
| 5 | 1,658,113 | 8,969 #954 | 5places up |
Developer tools584th of 1,608 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 582 | 6,600 | 71,150 #26 | 573places up | |
| 583 | 6,585 | 3,938 #602 | 299places down | |
| 584 | 6,585 | — | 241places down | |
| 585 | 6,555 | — | 171places down | |
| 586 | 6,555 | 17,596 #270 | 4places up |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 |  Framer | 34,158,649 | 14,826 #36 | 2places down |
| 2 |  Claude Academy | 465,374 | 15,594 #19 | 35places up |
| 3 |  LaTeX Compiler | 400,664 | 9,014 #294 | — |
| 4 |  Exness | 305,009 | 8,468 #345 | — |
| 5 |  Intuit Developer | 186,229 | 13,415 #63 | 50places down |
Other211th of 688 by popularity · not ranked by trending score
| # | Connector | Popularity | Trending | 7d |
|---|---|---|---|---|
| 209 | HtAG Spatial | 6,585 | 5,727 #204 | 294places down |
| 210 | 6,585 | 8,735 #180 | 211places down | |
| 211 | 6,585 | — | 241places down | |
| 212 | .svg){kind=small} GVRN Company Incorporation MCP | 6,555 | — | 317places down |
| 213 |  Apphaven | 6,539 | — | 267places down |
This connector isn’t ranked by trending score, so the category’s top connectors are shown instead.
| # | Connector | Trending | Popularity | 7d |
|---|---|---|---|---|
| 1 | 42,345,503 | 13,242 #20 | 0 | |
| 2 |  Tomorrow.io Weather MCP App | 6,032,104 | 13,101 #22 | 1places down |
| 3 |  Sketchy Medical | 791,248 | 10,028 #74 | 8places down |
| 4 | 318,711 | 14,726 #13 | 28places down | |
| 5 |  Tebar | 305,096 | 8,331 #132 | — |
Also on other marketplaces
Tools
- build_agent_tool_tests
- build_test_pack
- get_prompt_injection_payloads
- map_owasp_llm_risk
- plan_adlc_release
- Categories
- Made by
- PromptBrake · Website
- Sign-in
- Not required
- Connector URL
- https://promptbrake.com/free-tools/mcp
- Transport
- Streamable HTTP
- Permissions
- Reads bundled public guidance and validates the test-pack arguments you provide. Does not access your files, target endpoint, tools or backend, or execute tests. Tool arguments go to the hosted service; inputs/results are not stored, and operational request metadata is logged.
- Works with
- Claude, Claude API, Claude Code, Claude Desktop
- Added
- September 29, 2026
- More info
- Sponsorship
- Promote this connector