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RedBison MCP

v2.1.0 changelog · 1

dev.redbison/mcp

500+ free tools over MCP: dev, text and security utilities, 230+ calculators. No sign-up.

transport:streamable-http tools:87

Target client

run in your project directory

claude mcp add --transport http mcp https://mcp.redbison.dev

setup guides: Claude Code Claude Desktop Cursor VS Code Zed Windsurf Cline Gemini CLI Grok ChatGPT Claude.ai LangChain

Adds it for this project only. Append --scope user to make it available everywhere. Claude Code docs

search_tools Read-only

search tools

get_tool Read-only

get tool

list_categories Read-only

list categories

health

health

base64_encode

base64 encode

base64_decode

base64 decode

url_encode

url encode

url_decode

url decode

json_format

json format

json_validate

json validate

csv_to_json

csv to json

json_to_csv

json to csv

json_to_yaml

json to yaml

yaml_to_json

yaml to json

tsv_parse

tsv parse

html_beautify

html beautify

xml_beautify

xml beautify

yaml_beautify

yaml beautify

sql_beautify

sql beautify

slugify

slugify

case_convert

case convert

escape_characters

escape characters

remove_duplicate_lines Mutating

remove duplicate lines

find_duplicate_entries Read-only

find duplicate entries

remove_extra_spaces Mutating

remove extra spaces

remove_empty_lines Mutating

remove empty lines

lines_to_comma

lines to comma

comma_to_lines

comma to lines

jwt_decode

jwt decode

hash

hash

hash_compare

hash compare

uuid_generate

uuid generate

password_generate

password generate

bcrypt_hash

bcrypt hash

bcrypt_verify

bcrypt verify

subnet_calculator

subnet calculator

ip_convert

ip convert

epoch_convert

epoch convert

timezone_convert

timezone convert

date_diff

date diff

cron_validate

cron validate

regex_test

regex test

text_diff

text diff

list_compare Read-only

list compare

color_convert

color convert

contrast_check

contrast check

css_gradient

css gradient

random_name

random name

random_email

random email

random_number

random number

lorem_ipsum

lorem ipsum

emi_calculate

emi calculate

simple_interest

simple interest

compound_interest

compound interest

bmi_calculate

bmi calculate

list_calculators Read-only

list calculators

run_calculator Mutating

run calculator

ascii_art_text

ascii art text

barcode_check_digit

barcode check digit

chmod_convert

chmod convert

color_palette

color palette

cron_build

cron build

css_beautify

css beautify

curl_to_code

curl to code

docker_run_to_compose

docker run to compose

gitignore_generate

gitignore generate

hmac

hmac

http_status

http status

js_beautify

js beautify

json_schema_validate

json schema validate

markdown_table

markdown table

mime_lookup

mime lookup

morse_code

morse code

nato_phonetic

nato phonetic

password_strength

password strength

readability

readability

redirect_rules

redirect rules

toml_convert

toml convert

user_agent_parse

user agent parse

utm_build

utm build

word_count

word count

number_base_convert

number base convert

ieee754_float

ieee754 float

dice_roll

dice roll

tournament_bracket

tournament bracket

would_you_rather

would you rather

help

help

All 87 tools, one page each

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. Check the server's own documentation before granting access.