days_in_month — TinyFn MCP Tool
days_in_month
(days in month) is one of 500 tools on the
TinyFn
MCP server. Connect the server and your client discovers it on the handshake.
by client
How to call days_in_month from your client
- Claude Code TinyFn days_in_month run in your project directory
- Claude Desktop TinyFn days_in_month ~/Library/Application Support/Claude/claude_desktop_config.json
- Cursor TinyFn days_in_month ~/.cursor/mcp.json
- VS Code TinyFn days_in_month .vscode/mcp.json
- Zed TinyFn days_in_month ~/.config/zed/settings.json
- Windsurf TinyFn days_in_month ~/.codeium/windsurf/mcp_config.json
- Cline TinyFn days_in_month ~/Library/Application Support/Code/User/globalStorage/saoudrizwan.claude-dev/settings/cline_mcp_settings.json
- Gemini CLI TinyFn days_in_month ~/.gemini/settings.json
- Grok TinyFn days_in_month .mcp.json (in your project root)
- ChatGPT TinyFn days_in_month Settings → Connectors → Advanced → Developer mode
- Claude.ai TinyFn days_in_month Settings → Connectors → Add custom connector
- LangChain TinyFn days_in_month pip install langchain-mcp-adapters
Fastest route
claude mcp add --transport http tinyfn https://api.tinyfn.io/mcp/all/Other tools on this server
- is_even
- is_odd
- is_prime
- is_positive
- is_negative
- is_zero
- is_integer
- is_divisible
- is_perfect_square
- is_fibonacci
- factorial
- fibonacci
- gcd
- lcm
- absolute_value
- square_root
- power
- percentage
- average
- round_number
- clamp
- distance
- sin
- cos
- tan
- deg_to_rad
- rad_to_deg
- add
- subtract
- multiply
- divide
- modulo
- log
- log10
- log2
- exp
- floor
- ceil
- minimum
- maximum
- sum_numbers
- sign
- truncate
- hypotenuse
- cube
- cube_root
- square
- nth_root
- compare
- compare_decimals
- rank_numbers
- is_between
- reverse_string
- uppercase
- lowercase
- capitalize
- title_case
- sentence_case
- camel_case
- snake_case
- kebab_case
- pascal_case
- string_length
- word_count
- trim
- truncate_2
- pad
- repeat
- replace
- contains
- starts_with
- ends_with
- split
- join
- slug
- is_palindrome
- count_char
- count_substring
- count_all_chars
- remove_whitespace
- normalize_whitespace
- is_empty
- extract_numbers
- extract_emails
- extract_urls
- celsius_to_fahrenheit
- fahrenheit_to_celsius
- celsius_to_kelvin
- kelvin_to_celsius
- meters_to_feet
- feet_to_meters
- kilometers_to_miles
- miles_to_kilometers
- inches_to_centimeters
- centimeters_to_inches
- kilograms_to_pounds
- pounds_to_kilograms
- ounces_to_grams
- grams_to_ounces
- stone_to_kilograms
- liters_to_gallons_us
- gallons_us_to_liters
- liters_to_gallons_uk
- gallons_uk_to_liters
- milliliters_to_fluid_ounces
- cups_to_milliliters
- milliliters_to_cups
- square_meters_to_square_feet
- square_feet_to_square_meters
- acres_to_hectares
- mph_to_kph
- kph_to_mph
- meters_per_second_to_mph
- knots_to_kph
- bytes_to_human
- kilobytes_to_megabytes
- megabytes_to_gigabytes
- decimal_to_binary
- binary_to_decimal
- decimal_to_hexadecimal
- hexadecimal_to_decimal
- decimal_to_octal
- hex_to_rgb
- rgb_to_hex
- hours_to_minutes
- minutes_to_seconds
- seconds_to_hms
- generate_uuid
- generate_uuid_v7
- random_number
- random_float
- random_string
- generate_password
- generate_token
- generate_hash
- generate_lorem
- generate_color
- roll_dice
- flip_coin
- shuffle_list
- pick_random
- generate_sequence
- validate_email
- validate_url
- validate_phone
- validate_credit_card
- validate_uuid
- validate_ip
- validate_mac
- validate_json
- validate_hex
- validate_base64
- validate_alphanumeric
- validate_password_strength
- validate_date
- validate_domain
- validate_semver
- get_now
- convert_timestamp
- convert_timestamp_ms
- date_to_timestamp
- format_date
- parse_date
- add_time
- subtract_time
- date_diff
- is_leap_year
- week_number
- day_of_year
- is_weekend
- calculate_age
- relative_time
- current_time
- convert_timezone
- time_difference
- add_time_2
- subtract_time_2
- start_of_period
- end_of_period
- is_leap_year_2
- days_in_month_2
- week_number_2
- get_quarter
- business_days
- add_business_days
- calculate_age_2
- list_timezones
- unix_to_datetime
- datetime_to_unix
- base64_encode
- base64_decode
- url_encode
- url_decode
- html_encode
- html_decode
- hex_encode
- hex_decode
- binary_encode
- binary_decode
- ascii_encode
- ascii_decode
- rot13
- morse_encode
- morse_decode
- json_minify
- json_prettify
- jwt_decode
- punycode_encode
- punycode_decode
- hash_md5
- hash_sha1
- hash_sha256
- hash_sha384
- hash_sha512
- hash_sha3_256
- hash_sha3_512
- hash_blake2b
- hash_blake2s
- hmac_sha256
- hmac_sha512
- hmac_md5
- compare_hashes
- hash_all
- hash_crc32
- hash_adler32
- identify_hash
- file_checksum_guide
- generate_hmac
- md5_checksum
- sha1_checksum
- sha256_checksum
- sha512_checksum
- password_entropy
- random_bytes
- constant_time_compare
- verify_hash
- crc32_checksum
- adler32_checksum
- analyze_password
- generate_password_2
- generate_passphrase
- generate_pin
- estimate_hash_time
- is_common_password
- suggest_improvements
- leetspeak_password
- generate_memorable
- validate_ip_2
- ip_info
- ip_to_integer
- integer_to_ip
- network_info
- ip_in_network
- subnet_calculator
- supernet_calculator
- range_to_cidr
- expand_cidr
- is_private_ip
- ipv4_to_ipv6
- ipv6_to_ipv4
- ip_to_binary
- netmask_to_cidr
- cidr_to_netmask
- validate_json_2
- prettify_json
- minify_json
- get_keys
- get_values
- get_json_path
- flatten_json
- unflatten_json
- json_diff
- merge_json
- json_stats
- get_json_type
- json_to_query_string
- query_string_to_json
- readability_score
- extract_keywords
- text_similarity
- levenshtein_distance
- soundex
- metaphone
- generate_ngrams
- basic_sentiment
- generate_acronym
- get_initials
- mask_text
- lorem_words
- smart_title_case
- remove_duplicate_words
- slugify
- deslugify
- is_valid_slug
- url_encode_2
- url_decode_2
- parse_url
- build_url
- normalize_url
- extract_domain
- is_valid_url
- join_path
- add_query_param
- remove_query_param
- filename_safe
- to_camel_case
- to_pascal_case
- to_snake_case
- to_screaming_snake_case
- to_kebab_case
- to_train_case
- to_title_case
- to_sentence_case
- to_upper_case
- to_lower_case
- swap_case
- capitalize_text
- to_dot_case
- to_path_case
- to_constant_case
- to_header_case
- to_alternating_case
- inverse_case
- detect_case
- convert_all_cases
- format_number
- format_currency
- format_percentage
- format_ordinal
- number_to_words
- number_to_roman
- roman_to_number
- format_bytes
- format_phone
- format_credit_card
- format_ssn
- format_duration
- format_relative_time
- format_truncate
- format_list
- hex_to_hsl
- hsl_to_hex
- hex_to_hsv
- hsv_to_hex
- hex_to_cmyk
- cmyk_to_hex
- lighten_color
- darken_color
- saturate_color
- desaturate_color
- grayscale_color
- invert_color
- complement_color
- triadic_colors
- analogous_colors
- split_complementary_colors
- tetradic_colors
- contrast_ratio
- get_luminance
- blend_colors
- generate_gradient
- generate_shades
- generate_tints
- random_color
- is_valid_hex
- name_to_hex
- cidr_info
- subnet_mask_info
- ip_in_range
- port_info
- http_method_info
- parse_url_2
- build_url_2
- ipv4_to_ipv6_2
- private_ip_ranges
- haversine_distance
- calculate_bearing
- calculate_midpoint
- destination_point
- dms_to_decimal
- decimal_to_dms
- is_valid_coordinates
- bounding_box
- point_in_polygon
- geohash_encode
- geohash_decode
- polygon_area
- polyline_length
- polygon_centroid
- timezone_offset
- sun_position
- array_intersection
- array_union
- array_difference
- array_symmetric_difference
- is_subset
- array_reverse
- array_rotate
- array_first
- array_last
- array_nth
- array_slice
- array_compact
- array_zip
- array_unzip
- array_fill
- array_repeat
- group_by_length
- array_partition
- array_interleave
- array_dedupe
- array_frequency
- calculate_mean
- calculate_median
- calculate_mode
- calculate_variance
- calculate_stddev
- calculate_percentile
- calculate_quartiles
- calculate_range
- calculate_sum
- calculate_product
- geometric_mean
- harmonic_mean
- calculate_zscore
- calculate_correlation
- calculate_covariance
- describe_data
- compound_interest
- simple_interest
- loan_payment
- calculate_tip
- percentage_change
- calculate_markup
- calculate_margin
- calculate_discount
- calculate_vat
- mortgage_calculator
- rule_of_72
- future_value
- present_value
- break_even
- return_on_investment
- test_pattern
- find_all_matches
- regex_replace
- regex_split
- validate_pattern
- escape_pattern
- extract_groups
- get_email_pattern
- get_url_pattern
- get_phone_pattern
- get_ipv4_pattern
- get_ipv6_pattern
- get_date_pattern
- get_time_pattern
- get_credit_card_pattern
- get_uuid_pattern
- get_slug_pattern
- get_hex_color_pattern
- get_password_pattern
- prime_factors
- get_divisors
- nth_prime
- primes_in_range
- to_roman
- base_convert
- is_perfect_number
- is_armstrong_number
- is_palindrome_number
- collatz_sequence
- digital_root
- sum_digits
- reverse_number
- count_digits
- nth_triangular
- is_triangular
- nth_square
- nth_cube
- is_power_of
- nearest_power
- calculate_bmi
- calculate_bmr
- ideal_weight
- heart_rate_zones
- estimate_body_fat
- daily_water_intake
- calories_burned
- calculate_macros
- sleep_cycles
- lorem_words_2
- lorem_sentences
- lorem_paragraphs
- lorem_html
- lorem_markdown
- lorem_bytes
- generate_names
- generate_emails
This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what
the server actually exposes, not what its listing claims.
Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.