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A tool bench for AI agents

Explore every mock MCP.

Find a service, investigate its contract, and send a tool call. See exactly what goes in and what comes back.

6,019mockable services
115,665cataloged operations

Synthetic data. Captured and projected contracts. Inspect each service’s source and limitations.

All MCP services

6,019 services · page 118 of 168
smithery

Prompt Quality Score - PQS

sm--onchaintel-pqs

PQS is the fastest way to get better output from any AI model. Score any prompt before it hits the model. Get a grade (A-F), score out of 80, percentile, and d

2 operations2 with captured input schemas
smithery

Prompt Refiner

sm--waleed-2002-prompt-enhancer

Transforms vague prompts into detailed, structured, and actionable instructions. Improves the quality of results by automatically adding necessary context and c

1 operations1 with captured input schemas
smithery

PromptArch

sm--rlopezlacuague-promptarch

PromptArch — captured from the smithery registry (smithery-registry); 3 tools.

3 operations3 with captured input schemas
smithery

PromptDNA.org

sm--jamesplotts-promptdna-org

PromptDNA.org — captured from the smithery registry (smithery-registry); 20 tools.

20 operations20 with captured input schemas
smithery

promptfax

sm--promptfax-promptfax

PromptFax is a pay-per-use remote MCP server that lets an AI assistant send a real fax to a US fax number. Your assistant uploads a PDF or image, enters the de

8 operations8 with captured input schemas
smithery

Promptibus MCP

sm--promptibus-mcp

Model intelligence for AI agents — syntax, parameters, pricing, and routing for 67+ generative AI models (Midjourney, Flux, Suno, Runway, DALL-E, Stable Diffusi

7 operations7 with captured input schemas
composio

Promptmate.io

cx--promptmate-io

Promptmate.io enables users to build AI-powered applications by integrating various AI systems like ChatGPT, Google Gemini, and Stability AI, offering features

4 operations2 with captured input schemas
smithery

PromptRefiner

sm--evozim-hv-prompt-refiner

PromptRefiner is a premium micro-service from the M2MCent factory, configured as a Model Context Protocol (MCP) server. Functionality: Optimizador de Prompts Vi

1 operations1 with captured input schemas
smithery

promptscan

sm--nicks-brn-promptscan

Production-ready prompt injection detection for AI agents. Scan user input, retrieved docs, and tool outputs before passing them to an LLM. Returns injection_de

1 operations1 with captured input schemas
smithery

Pronunciation Assessment

sm--fabiosuizu-pronunciation-assessment

Analyze spoken language to provide immediate feedback on pronunciation accuracy and fluency. Identify specific phonetic errors to help learners improve their sp

10 operations10 with captured input schemas
smithery

proof

sm--duna-spice-skay-proof

# Proof Code-validated pattern intelligence from pydantic-ai's actual source code. ## What It Does Proof extracts working patterns from real l

5 operations5 with captured input schemas
smithery

proofetch

sm--moritz-fni2-proofetch

**Verified extraction with proof per field.** proofetch pulls structured JSON from PDFs, URLs and text — every value backed by an exact source quote (provenance

1 operations1 with captured input schemas
composio

Proofly

cx--proofly

Proofly is a social proof toolkit that helps boost website conversions by displaying real-time notifications of customer activities.

3 operations3 with captured input schemas
smithery

PropContext

sm--hitesh-manwar-propcontext

Live access to 2,700+ RERA-verified apartment projects in Bangalore. Search by builder, locality, BHK, price, possession date, or commute distance to IT hubs. B

8 operations8 with captured input schemas
smithery

propelauth

sm--paul-ccmy-propelauth

propelauth — captured from the smithery registry (smithery-registry); 2 tools.

2 operations2 with captured input schemas
smithery

property-api

sm--propertyscoop-property-api

Property intelligence API for US real estate. Returns 16+ data points for any US address: noise levels, wetlands, terrain slope, natural light, powerline proxim

2 operations2 with captured input schemas
smithery

PropertyList - Official

sm--info-ol8t-propertylist

The official MCP server for the PropertyList MLS: first-party Spanish and European listings - not scraped. Natural-lanuage matching, market summaries, agency di

13 operations13 with captured input schemas
smithery

Prospector

sm--myceliumlabs-prospector-mcp-email-finder

Prospector — captured from the smithery registry (smithery-registry); 5 tools.

5 operations5 with captured input schemas
smithery

protogen

sm--hartjustin6-protogen

protogen — captured from the smithery registry (smithery-registry); 6 tools.

6 operations6 with captured input schemas
smithery

provenanceai

sm--exactrushllc-provenanceai

AI-integrated tools for learning, writing, and publishing. ProvenanceAI builds free MCP tools that help authors develop and protect their voice, editors assess

10 operations10 with captured input schemas
composio

Proxiedmail

cx--proxiedmail

ProxiedMail offers privacy-focused email services, including automatic creation of proxy emails and receiving emails via webhooks.

4 operations4 with captured input schemas
smithery

proxies

sm--kagelogic-proxies

proxies — captured from the smithery registry (smithery-registry); 2 tools.

2 operations2 with captured input schemas
smithery

pseolint

sm--emailens-mcp-pseolint

Audit programmatic SEO sites for Google SpamBrain risk the way the algorithm sees them — across pages, not one page at a time. pseolint clusters your URLs into

3 operations3 with captured input schemas
smithery

psiemens

sm--igutiez-psiemens

psiemens — captured from the smithery registry (smithery-registry); 10 tools.

10 operations10 with captured input schemas
smithery

PubFi MCP

sm--helixboxai-pubfi-mcp

Route crypto data needs through PubFi capability and gateway tools. PubFi exposes six generic MCP tools for capability search, route planning, route execution,

6 operations0 with captured input schemas
smithery

Public Transport

sm--mirodn-mcp-server-public-transport

Access real-time public transport across Europe with live departures, connections, and vehicle details. Plan door-to-door trips, search stations and places, and

12 operations12 with captured input schemas
smithery

publish

sm--htmldrop-publish

htmldrop turns anything Claude generates — HTML, Markdown, résumés, dashboards, posters, internal docs — into a real hosted URL you can share. One tool call, no

3 operations3 with captured input schemas