TinyFn
REMOTE · API.TINYFN.IO · SCANNED SEP 26
500+ deterministic tools for AI agents: math, conversion, validation, hashing, encoding, date/time.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not fully verified: no authorisation is required to call this server, and 572 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability74
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 20780 tokens (~36/item across 572 items; 572 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management100
- No destabilizing schema changes in the last 30 days.Pass
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
- Structured output schemas are declared (96% of tools); any adoption earns full credit.Pass
Tool Safety50
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 9 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "truncate" implies "truncate" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- Manipulation not yet verified: only 564 of 573 captured unit(s) of tool text has been judged so far, so we will not certify text no model has read as clean.Unverified
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the TinyFn MCP server?
TinyFn is a hosted endpoint at https://api.tinyfn.io/mcp/all/, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · api.tinyfn.io
claude mcp add --transport http io-tinyfn-tinyfn 'https://api.tinyfn.io/mcp/all/'
{
"mcpServers": {
"io-tinyfn-tinyfn": {
"url": "https://api.tinyfn.io/mcp/all/"
}
}
} {
"servers": {
"io-tinyfn-tinyfn": {
"type": "http",
"url": "https://api.tinyfn.io/mcp/all/"
}
}
} [mcp_servers.io-tinyfn-tinyfn] url = "https://api.tinyfn.io/mcp/all/"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"io-tinyfn-tinyfn": {
"type": "remote",
"url": "https://api.tinyfn.io/mcp/all/",
"enabled": true
}
}
} openclaw mcp add io-tinyfn-tinyfn --url 'https://api.tinyfn.io/mcp/all/' --transport streamable-http
mcp_servers:
io-tinyfn-tinyfn:
url: "https://api.tinyfn.io/mcp/all/" {
"McpServers": {
"io-tinyfn-tinyfn": {
"Transport": "http",
"Url": "https://api.tinyfn.io/mcp/all/"
}
}
} assistant mcp add io-tinyfn-tinyfn -t streamable-http -u 'https://api.tinyfn.io/mcp/all/'
{
"mcpServers": {
"io-tinyfn-tinyfn": {
"type": "http",
"url": "https://api.tinyfn.io/mcp/all/"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 25 Sept 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 26 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 11 Aug 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 7 Aug 26 0
- The server no longer declares the “experimental” capability functional
- 31 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 28 Jul 26 0
- Stability: unverified → 0.03 ▲ functional
- 27 Jul 26 0
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 26 Sept 2026 · Probed https://api.tinyfn.io/mcp/all/
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=api.tinyfn.io | CN=YR2,O=Let's Encrypt,C=US | 25 Sept 2026 | 24 Dec 2026 | RSA 2048 | SHA256-RSA | 54eb566768cb74f3218eec54aa7ad821182 |
| SANs: api.tinyfn.io | ||||||
| CN=YR2,O=Let's Encrypt,C=US (CA) | CN=Root YR,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | RSA 2048 | SHA256-RSA | 4ebd24947e24d394802d84a52fd5b319 |
| CN=Root YR,O=ISRG,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | RSA 4096 | SHA256-RSA | f24b6d17f9d9ad7cb1c9fea78782699f |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of api.tinyfn.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 57355 | 8 | Verified |
| tinyfn.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://api.tinyfn.io/mcp/all/ | Verified | 200 | |
| http (plaintext) | http://api.tinyfn.io/mcp/all/ | HTTPS enforced | 301 | https://api.tinyfn.io/mcp/all/ |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
random_weighted_choice ~73
Pick random item(s) with weighted probabilities.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | Number of choices to make |
| items | string | yes | Comma-separated items (e.g., 'red,green,blue') |
| weights | string | yes | Comma-separated weights (e.g., '50,30,20') |
No output schema declared.
No examples provided.
range_to_cidr ~41
Convert an IP range to CIDR notation.
| Name | Type | Req | Description |
|---|---|---|---|
| end_ip | string | yes | End IP address |
| start_ip | string | yes | Start IP address |
| Name | Type | Req | Description |
|---|---|---|---|
| cidrs | – | – | – |
| end_ip | – | – | – |
| error | – | – | – |
| start_ip | – | – | – |
| total_addresses | – | – | – |
No examples provided.
rank_numbers ~59
Rank a list of numbers from largest to smallest (or vice versa).
| Name | Type | Req | Description |
|---|---|---|---|
| numbers | string | yes | Comma-separated numbers to rank |
| order | string | – | Order: 'asc' (smallest first) or 'desc' (largest first) |
| Name | Type | Req | Description |
|---|---|---|---|
| largest | number | yes | – |
| numbers | array | yes | – |
| order | string | yes | – |
| range | number | yes | – |
| ranked | array | yes | – |
| smallest | number | yes | – |
No examples provided.
readability_score ~31
Calculate readability scores (Flesch-Kincaid, etc.).
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to analyze |
| Name | Type | Req | Description |
|---|---|---|---|
| difficulty | string | yes | Human-readable difficulty label: Very Easy, Easy, Moderate, Difficult, or Very Difficult |
| flesch_kincaid_grade | number | yes | Flesch-Kincaid grade level (US school grade) |
| flesch_reading_ease | number | yes | Flesch Reading Ease score (0-100, higher = easier) |
| sentence_count | integer | yes | Total number of sentences |
| syllable_count | integer | yes | Total number of syllables |
| text_length | integer | yes | Total character count of the input text |
| word_count | integer | yes | Total number of words |
No examples provided.
regex_replace ~66
Replace pattern matches in text.
| Name | Type | Req | Description |
|---|---|---|---|
| flags | string | – | Flags: i=ignore case, m=multiline, s=dotall |
| pattern | string | yes | Regular expression pattern |
| replacement | string | yes | Replacement string |
| text | string | yes | Text to process |
| Name | Type | Req | Description |
|---|---|---|---|
| error | – | – | – |
| original | – | – | – |
| pattern | string | yes | – |
| replacement | – | – | – |
| replacements_made | – | – | – |
| result | – | – | – |
| valid_pattern | – | – | – |
No examples provided.
regex_split ~52
Split text by regex pattern.
| Name | Type | Req | Description |
|---|---|---|---|
| max_split | integer | – | Maximum splits (0=unlimited) |
| pattern | string | yes | Regular expression pattern to split on |
| text | string | yes | Text to split |
| Name | Type | Req | Description |
|---|---|---|---|
| count | – | – | – |
| error | – | – | – |
| parts | – | – | – |
| pattern | string | yes | – |
| text | – | – | – |
| valid_pattern | – | – | – |
No examples provided.
relative_time ~32
Get relative time description (e.g., '2 days ago').
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | yes | Date (ISO format) |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| date | – | – | – |
| error | – | – | – |
| is_past | – | – | – |
| relative | – | – | – |
| seconds_diff | – | – | – |
No examples provided.
remove_duplicate_words ~26
Remove consecutive duplicate words.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text with potential duplicate words |
| Name | Type | Req | Description |
|---|---|---|---|
| cleaned | string | yes | Text with consecutive duplicate words removed |
| duplicates_removed | integer | yes | Number of duplicate words removed |
| original | string | yes | Original input text |
No examples provided.
remove_query_param ~38
Remove a query parameter from a URL.
| Name | Type | Req | Description |
|---|---|---|---|
| key | string | yes | Parameter key to remove |
| url | string | yes | URL to modify |
| Name | Type | Req | Description |
|---|---|---|---|
| modified | string | yes | – |
| original | string | yes | – |
| removed_param | object | yes | – |
No examples provided.
remove_whitespace ~26
Remove all whitespace from text.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to process |
| Name | Type | Req | Description |
|---|---|---|---|
| original | string | yes | – |
| result | string | yes | – |
No examples provided.
repeat ~46
Repeat text a specified number of times.
| Name | Type | Req | Description |
|---|---|---|---|
| separator | string | – | Separator between repetitions |
| text | string | yes | The text to repeat |
| times | integer | yes | Number of repetitions |
| Name | Type | Req | Description |
|---|---|---|---|
| original | string | yes | – |
| repeated | string | yes | – |
No examples provided.
replace ~42
Replace occurrences in text.
| Name | Type | Req | Description |
|---|---|---|---|
| replacement | string | – | Replacement text |
| search | string | yes | Text to search for |
| text | string | yes | The original text |
| Name | Type | Req | Description |
|---|---|---|---|
| occurrences_replaced | integer | yes | – |
| original | string | yes | – |
| result | string | yes | – |
No examples provided.
return_on_investment ~38
Calculate Return on Investment (ROI).
| Name | Type | Req | Description |
|---|---|---|---|
| cost | number | yes | Cost of investment |
| gain | number | yes | Gain from investment |
| Name | Type | Req | Description |
|---|---|---|---|
| cost | number | yes | – |
| gain | number | yes | – |
| net_profit | number | yes | – |
| roi_percent | number | yes | – |
No examples provided.
reverse_number ~25
Reverse the digits of a number.
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | Number to reverse |
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | – |
| reversed | integer | yes | – |
No examples provided.
reverse_string ~23
Reverse a string.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to reverse |
| Name | Type | Req | Description |
|---|---|---|---|
| original | string | yes | – |
| reversed | string | yes | – |
No examples provided.
rgb_to_hex ~51
Convert RGB to hex color.
| Name | Type | Req | Description |
|---|---|---|---|
| b | integer | yes | Blue (0-255) |
| g | integer | yes | Green (0-255) |
| r | integer | yes | Red (0-255) |
| Name | Type | Req | Description |
|---|---|---|---|
| hex | string | yes | – |
| rgb | – | yes | – |
No examples provided.
rgb_to_hsl ~53
Convert RGB to HSL color.
| Name | Type | Req | Description |
|---|---|---|---|
| b | integer | yes | Blue (0-255) |
| g | integer | yes | Green (0-255) |
| r | integer | yes | Red (0-255) |
| Name | Type | Req | Description |
|---|---|---|---|
| hsl | – | yes | – |
| hsl_string | string | yes | – |
| rgb | – | yes | – |
No examples provided.
roll_dice ~34
Roll dice.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | Number of dice to roll |
| sides | integer | – | Number of sides |
| Name | Type | Req | Description |
|---|---|---|---|
| average | number | yes | – |
| count | integer | yes | – |
| rolls | array | yes | – |
| sides | integer | yes | – |
| sum | integer | yes | – |
No examples provided.
roman_to_number ~28
Convert Roman numerals to a number.
| Name | Type | Req | Description |
|---|---|---|---|
| roman | string | yes | Roman numeral to convert |
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | – |
| roman | string | yes | – |
No examples provided.
rot13 ~35
Apply ROT13 cipher (encoding and decoding are the same operation).
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to ROT13 encode/decode |
| Name | Type | Req | Description |
|---|---|---|---|
| original | string | yes | – |
| rot13 | string | yes | – |
No examples provided.
round_number ~38
Round a number to specified decimal places.
| Name | Type | Req | Description |
|---|---|---|---|
| decimals | integer | – | Number of decimal places |
| number | number | yes | The number to round |
| Name | Type | Req | Description |
|---|---|---|---|
| ceiling | integer | yes | – |
| decimals | integer | yes | – |
| floor | integer | yes | – |
| number | number | yes | – |
| rounded | number | yes | – |
No examples provided.
rule_of_72 ~33
Calculate time to double investment using Rule of 72.
| Name | Type | Req | Description |
|---|---|---|---|
| rate | number | yes | Annual interest rate (percentage) |
| Name | Type | Req | Description |
|---|---|---|---|
| rate_percent | number | yes | – |
| years_to_double_approx | number | yes | – |
| years_to_double_exact | number | yes | – |
No examples provided.
saturate_color ~44
Increase color saturation by a percentage.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | integer | – | Amount to saturate (0-100) |
| hex_color | string | yes | Hex color to saturate |
| Name | Type | Req | Description |
|---|---|---|---|
| amount | integer | yes | – |
| darkened | – | – | – |
| desaturated | – | – | – |
| lightened | – | – | – |
| original | string | yes | – |
| saturated | – | – | – |
No examples provided.
seconds_to_hms ~29
Convert seconds to hours:minutes:seconds.
| Name | Type | Req | Description |
|---|---|---|---|
| seconds | integer | yes | Time in seconds |
| Name | Type | Req | Description |
|---|---|---|---|
| formatted | string | yes | – |
| hours | integer | yes | – |
| minutes | integer | yes | – |
| seconds | integer | yes | – |
| total_seconds | integer | yes | – |
No examples provided.
sentence_case ~26
Convert text to sentence case.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to sentence case |
| Name | Type | Req | Description |
|---|---|---|---|
| original | string | yes | – |
| sentence_case | string | yes | – |
No examples provided.
sha1_checksum ~24
Generate SHA1 checksum.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to hash |
| Name | Type | Req | Description |
|---|---|---|---|
| sha1 | string | yes | – |
| text | string | yes | – |
No examples provided.
sha256_checksum ~24
Generate SHA256 checksum.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to hash |
| Name | Type | Req | Description |
|---|---|---|---|
| sha256 | string | yes | – |
| text | string | yes | – |
No examples provided.
sha512_checksum ~24
Generate SHA512 checksum.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to hash |
| Name | Type | Req | Description |
|---|---|---|---|
| sha512 | string | yes | – |
| text | string | yes | – |
No examples provided.
shuffle_list ~27
Shuffle a list of items.
| Name | Type | Req | Description |
|---|---|---|---|
| items | string | yes | Comma-separated items to shuffle |
| Name | Type | Req | Description |
|---|---|---|---|
| original | array | yes | – |
| shuffled | array | yes | – |
No examples provided.
sign ~33
Get the sign of a number (-1, 0, or 1).
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | Number to check |
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | – |
| sign | integer | yes | – |
No examples provided.
simple_interest ~43
Calculate simple interest.
| Name | Type | Req | Description |
|---|---|---|---|
| principal | number | yes | Initial principal |
| rate | number | yes | Annual interest rate (percentage) |
| time | number | yes | Time in years |
| Name | Type | Req | Description |
|---|---|---|---|
| final_amount | number | yes | – |
| interest | number | yes | – |
| principal | number | yes | – |
| rate_percent | number | yes | – |
| time_years | number | yes | – |
No examples provided.
sin ~24
Calculate the sine of an angle.
| Name | Type | Req | Description |
|---|---|---|---|
| angle | number | yes | Angle in radians |
| Name | Type | Req | Description |
|---|---|---|---|
| angle_radians | number | yes | – |
| sin | number | yes | – |
No examples provided.
sleep_cycles ~52
Calculate optimal sleep/wake times based on 90-minute sleep cycles.
| Name | Type | Req | Description |
|---|---|---|---|
| sleep_time | string | – | Desired sleep time (HH:MM) |
| wake_time | string | – | Desired wake time (HH:MM) |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| fall_asleep_time | – | – | – |
| recommended_bed_times | – | – | – |
| recommended_wake_times | – | – | – |
| sleep_time | – | – | – |
| wake_time | – | – | – |
No examples provided.
slug ~26
Convert text to URL-friendly slug.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to slugify |
| Name | Type | Req | Description |
|---|---|---|---|
| original | string | yes | – |
| slug | string | yes | – |
No examples provided.
slugify ~57
Convert text to URL-friendly slug.
| Name | Type | Req | Description |
|---|---|---|---|
| lowercase | boolean | – | Convert to lowercase |
| max_length | integer | – | Maximum slug length |
| separator | string | – | Word separator |
| text | string | yes | Text to convert to slug |
| Name | Type | Req | Description |
|---|---|---|---|
| length | integer | yes | – |
| original | string | yes | – |
| slug | string | yes | – |
No examples provided.
smart_title_case ~29
Smart title case (handles articles, prepositions).
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to convert |
| Name | Type | Req | Description |
|---|---|---|---|
| original | string | yes | Original input text |
| title_case | string | yes | Text converted to smart title case (articles/prepositions lowercased) |
No examples provided.
snake_case ~25
Convert text to snake_case.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to convert |
| Name | Type | Req | Description |
|---|---|---|---|
| original | string | yes | – |
| snake_case | string | yes | – |
No examples provided.
sort_items ~50
Sort a list of items.
| Name | Type | Req | Description |
|---|---|---|---|
| items | string | yes | Comma-separated items to sort |
| numeric | boolean | – | Sort as numbers |
| order | string | – | Sort order (asc or desc) |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| order | – | – | – |
| original | – | – | – |
| sorted | – | – | – |
No examples provided.
soundex ~25
Generate Soundex phonetic encoding.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Word to encode |
| Name | Type | Req | Description |
|---|---|---|---|
| soundex | string | yes | 4-character Soundex phonetic code |
| text | string | yes | Input word (uppercased) |
No examples provided.
split ~35
Split text by delimiter.
| Name | Type | Req | Description |
|---|---|---|---|
| delimiter | string | – | Delimiter to split by |
| text | string | yes | The text to split |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| delimiter | string | yes | – |
| original | string | yes | – |
| parts | array | yes | – |
No examples provided.
split_complementary_colors ~28
Get split-complementary colors.
| Name | Type | Req | Description |
|---|---|---|---|
| hex_color | string | yes | Hex color |
| Name | Type | Req | Description |
|---|---|---|---|
| analogous | – | – | – |
| original | string | yes | – |
| split_complementary | – | – | – |
| tetradic | – | – | – |
| triadic | – | – | – |
No examples provided.
square ~24
Calculate the square of a number.
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | Number to square |
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | – |
| result | number | yes | – |
No examples provided.
square_feet_to_square_meters ~33
Convert square feet to square meters.
| Name | Type | Req | Description |
|---|---|---|---|
| square_feet | number | yes | Area in square feet |
| Name | Type | Req | Description |
|---|---|---|---|
| square_feet | number | yes | – |
| square_meters | number | yes | – |
No examples provided.
square_meters_to_square_feet ~33
Convert square meters to square feet.
| Name | Type | Req | Description |
|---|---|---|---|
| square_meters | number | yes | Area in square meters |
| Name | Type | Req | Description |
|---|---|---|---|
| square_feet | number | yes | – |
| square_meters | number | yes | – |
No examples provided.
square_root ~25
Calculate the square root of a number.
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | The number |
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | – |
| square_root | number | yes | – |
No examples provided.
start_of_period ~48
Get the start of a time period.
| Name | Type | Req | Description |
|---|---|---|---|
| datetime_str | string | yes | Datetime in ISO format |
| period | string | – | Period: year, month, week, day, hour |
| Name | Type | Req | Description |
|---|---|---|---|
| error | – | – | – |
| original | – | – | – |
| period | – | – | – |
| start | – | – | – |
No examples provided.
starts_with ~39
Check if text starts with a prefix.
| Name | Type | Req | Description |
|---|---|---|---|
| prefix | string | yes | The prefix to look for |
| text | string | yes | The text to check |
| Name | Type | Req | Description |
|---|---|---|---|
| prefix | string | yes | – |
| starts_with | boolean | yes | – |
| text | string | yes | – |
No examples provided.
status_code_info ~27
Get information about an HTTP status code.
| Name | Type | Req | Description |
|---|---|---|---|
| code | integer | yes | HTTP status code |
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | yes | – |
| code | integer | yes | – |
| description | string | yes | – |
| name | string | yes | – |
No examples provided.
stone_to_kilograms ~26
Convert stone to kilograms.
| Name | Type | Req | Description |
|---|---|---|---|
| stone | number | yes | Weight in stone |
| Name | Type | Req | Description |
|---|---|---|---|
| kilograms | number | yes | – |
| stone | number | yes | – |
No examples provided.
string_length ~26
Get the length of a string.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to measure |
| Name | Type | Req | Description |
|---|---|---|---|
| length | integer | yes | – |
| length_without_spaces | integer | yes | – |
| line_count | integer | yes | – |
| text | string | yes | – |
| word_count | integer | yes | – |
No examples provided.
What is the TinyFn MCP server?
TinyFn is an MCP server listed in the public MCP registry as io.tinyfn/tinyfn. 500+ deterministic tools for AI agents: math, conversion, validation, hashing, encoding, date/time. This page covers its hosted endpoint (https://api.tinyfn.io/mcp/all/).
Is the TinyFn MCP server safe to use?
TinyFn scores 75 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the TinyFn MCP server expose?
TinyFn exposes 572 tools: is_even, is_odd, is_prime, is_positive, is_negative, and 567 more. Their descriptions and schemas cost roughly 20,637 tokens of context every time the server is loaded.
Does the TinyFn MCP server require authentication?
No. We connected to TinyFn without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the TinyFn MCP server still maintained?
TinyFn is still listed as active in the MCP registry. We last reached this channel on 26 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.