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 →
is_private_ip ~36
Check if an IP address is private (RFC 1918 for IPv4).
| Name | Type | Req | Description |
|---|---|---|---|
| ip | string | yes | IP address to check |
| Name | Type | Req | Description |
|---|---|---|---|
| error | – | – | – |
| ip | string | yes | – |
| is_private | – | – | – |
| matching_range | – | – | – |
No examples provided.
is_subset ~40
Check if array1 is a subset of array2.
| Name | Type | Req | Description |
|---|---|---|---|
| array1 | string | yes | Potential subset |
| array2 | string | yes | Potential superset |
| Name | Type | Req | Description |
|---|---|---|---|
| array1 | array | yes | – |
| array2 | array | yes | – |
| is_equal | boolean | yes | – |
| is_subset | boolean | yes | – |
| is_superset | boolean | yes | – |
No examples provided.
is_triangular ~28
Check if a number is a triangular number.
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | Number to check |
| Name | Type | Req | Description |
|---|---|---|---|
| is_triangular | boolean | yes | – |
| number | integer | yes | – |
| position | – | – | – |
No examples provided.
is_valid_coordinates ~35
Check if coordinates are valid.
| Name | Type | Req | Description |
|---|---|---|---|
| lat | number | yes | Latitude to validate |
| lon | number | yes | Longitude to validate |
| Name | Type | Req | Description |
|---|---|---|---|
| is_valid | boolean | yes | – |
| is_valid_lat | boolean | yes | – |
| is_valid_lon | boolean | yes | – |
| lat | number | yes | – |
| lon | number | yes | – |
No examples provided.
is_valid_hex ~31
Check if a string is a valid hex color.
| Name | Type | Req | Description |
|---|---|---|---|
| hex_color | string | yes | Color string to validate |
| Name | Type | Req | Description |
|---|---|---|---|
| expanded | – | – | – |
| input | string | yes | – |
| is_valid | boolean | yes | – |
No examples provided.
is_valid_slug ~30
Check if a string is a valid URL slug.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | Slug to validate |
| Name | Type | Req | Description |
|---|---|---|---|
| is_valid | boolean | yes | – |
| issues | – | – | – |
| slug | string | yes | – |
No examples provided.
is_valid_url ~40
Validate if a string is a valid URL.
| Name | Type | Req | Description |
|---|---|---|---|
| require_protocol | boolean | – | Require http/https |
| url | string | yes | URL to validate |
| Name | Type | Req | Description |
|---|---|---|---|
| is_valid | boolean | yes | – |
| issues | – | – | – |
| url | string | yes | – |
No examples provided.
is_weekend ~29
Check if a date is a weekend.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | yes | Date (YYYY-MM-DD) |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| date | – | – | – |
| day_name | – | – | – |
| day_of_week | – | – | – |
| error | – | – | – |
| is_weekday | – | – | – |
| is_weekend | – | – | – |
No examples provided.
is_zero ~26
Check if a number is zero.
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | The number to check |
| Name | Type | Req | Description |
|---|---|---|---|
| is_zero | boolean | yes | – |
| number | number | yes | – |
No examples provided.
join ~38
Join items with a delimiter.
| Name | Type | Req | Description |
|---|---|---|---|
| delimiter | string | – | Delimiter to join with |
| items | string | yes | Comma-separated items to join |
| Name | Type | Req | Description |
|---|---|---|---|
| delimiter | string | yes | – |
| items | array | yes | – |
| joined | string | yes | – |
No examples provided.
join_path ~34
Join path parts safely.
| Name | Type | Req | Description |
|---|---|---|---|
| parts | string | yes | Path parts separated by comma |
| separator | string | – | Path separator |
| Name | Type | Req | Description |
|---|---|---|---|
| joined | string | yes | – |
| parts | array | yes | – |
No examples provided.
json_diff ~38
Compare two JSON objects and find differences.
| Name | Type | Req | Description |
|---|---|---|---|
| json1 | string | yes | First JSON string |
| json2 | string | yes | Second JSON string |
| Name | Type | Req | Description |
|---|---|---|---|
| change_count | – | – | – |
| differences | – | – | – |
| error | – | – | – |
| identical | – | – | – |
| valid | – | – | – |
No examples provided.
json_minify ~28
Minify JSON (remove whitespace).
| Name | Type | Req | Description |
|---|---|---|---|
| json_str | string | yes | JSON to minify |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| minified | – | – | – |
| minified_length | – | – | – |
| original_length | – | – | – |
| savings | – | – | – |
No examples provided.
json_prettify ~41
Prettify JSON (format with indentation).
| Name | Type | Req | Description |
|---|---|---|---|
| indent | integer | – | Indentation spaces |
| json_str | string | yes | JSON to prettify |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| original_length | – | – | – |
| prettified | – | – | – |
| prettified_length | – | – | – |
No examples provided.
json_stats ~27
Get statistics about a JSON structure.
| Name | Type | Req | Description |
|---|---|---|---|
| json_string | string | yes | JSON string to analyze |
| Name | Type | Req | Description |
|---|---|---|---|
| arrays | – | – | – |
| booleans | – | – | – |
| error | – | – | – |
| max_depth | – | – | – |
| nulls | – | – | – |
| numbers | – | – | – |
| objects | – | – | – |
| size_bytes | – | – | – |
| size_minified | – | – | – |
| strings | – | – | – |
| total_keys | – | – | – |
| total_values | – | – | – |
| valid | – | – | – |
No examples provided.
json_to_query_string ~31
Convert a JSON object to URL query string.
| Name | Type | Req | Description |
|---|---|---|---|
| json_string | string | yes | JSON object to convert |
| Name | Type | Req | Description |
|---|---|---|---|
| error | – | – | – |
| full_url_example | – | – | – |
| query_string | – | – | – |
| valid | – | – | – |
No examples provided.
jwt_decode ~30
Decode JWT token (without signature verification).
| Name | Type | Req | Description |
|---|---|---|---|
| token | string | yes | JWT token to decode (without verification) |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| header | – | – | – |
| payload | – | – | – |
| signature | – | – | – |
| warning | – | – | – |
No examples provided.
kebab_case ~27
Convert text to kebab-case.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to convert |
| Name | Type | Req | Description |
|---|---|---|---|
| kebab_case | string | yes | – |
| original | string | yes | – |
No examples provided.
kelvin_to_celsius ~27
Convert Kelvin to Celsius.
| Name | Type | Req | Description |
|---|---|---|---|
| kelvin | number | yes | Temperature in Kelvin |
| Name | Type | Req | Description |
|---|---|---|---|
| celsius | number | yes | – |
| kelvin | number | yes | – |
No examples provided.
kilobytes_to_megabytes ~35
Convert kilobytes to megabytes.
| Name | Type | Req | Description |
|---|---|---|---|
| kilobytes | number | yes | Size in kilobytes |
| Name | Type | Req | Description |
|---|---|---|---|
| kilobytes | number | yes | – |
| megabytes | number | yes | – |
No examples provided.
kilograms_to_pounds ~25
Convert kilograms to pounds.
| Name | Type | Req | Description |
|---|---|---|---|
| kilograms | number | yes | Weight in kilograms |
| Name | Type | Req | Description |
|---|---|---|---|
| kilograms | number | yes | – |
| pounds | number | yes | – |
No examples provided.
kilometers_to_miles ~25
Convert kilometers to miles.
| Name | Type | Req | Description |
|---|---|---|---|
| kilometers | number | yes | Length in kilometers |
| Name | Type | Req | Description |
|---|---|---|---|
| kilometers | number | yes | – |
| miles | number | yes | – |
No examples provided.
knots_to_kph ~27
Convert knots to kilometers per hour.
| Name | Type | Req | Description |
|---|---|---|---|
| knots | number | yes | Speed in knots |
| Name | Type | Req | Description |
|---|---|---|---|
| knots | number | yes | – |
| kph | number | yes | – |
No examples provided.
kph_to_mph ~33
Convert kilometers per hour to miles per hour.
| Name | Type | Req | Description |
|---|---|---|---|
| kph | number | yes | Speed in kilometers per hour |
| Name | Type | Req | Description |
|---|---|---|---|
| kph | number | yes | – |
| mph | number | yes | – |
No examples provided.
lcm ~32
Calculate the least common multiple.
| Name | Type | Req | Description |
|---|---|---|---|
| a | integer | yes | First number |
| b | integer | yes | Second number |
| Name | Type | Req | Description |
|---|---|---|---|
| a | integer | yes | – |
| b | integer | yes | – |
| lcm | integer | yes | – |
No examples provided.
leetspeak_password ~53
Convert a password to leetspeak (for demonstration, not security).
| Name | Type | Req | Description |
|---|---|---|---|
| level | integer | – | Leetspeak intensity (1-3) |
| password | string | yes | Password to convert to leetspeak |
| Name | Type | Req | Description |
|---|---|---|---|
| leetspeak | string | yes | – |
| level | integer | yes | – |
| note | string | yes | – |
| original | string | yes | – |
No examples provided.
levenshtein_distance ~43
Calculate Levenshtein (edit) distance between two strings.
| Name | Type | Req | Description |
|---|---|---|---|
| text1 | string | yes | First string |
| text2 | string | yes | Second string |
| Name | Type | Req | Description |
|---|---|---|---|
| distance | integer | yes | Levenshtein edit distance (number of single-character edits) |
| similarity | number | yes | Normalized similarity (0-1, where 1 = identical) |
| similarity_percent | number | yes | Similarity as a percentage (0-100) |
| text1 | string | yes | First input string |
| text2 | string | yes | Second input string |
No examples provided.
lighten_color ~42
Lighten a color by a percentage.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | integer | – | Amount to lighten (0-100) |
| hex_color | string | yes | Hex color to lighten |
| Name | Type | Req | Description |
|---|---|---|---|
| amount | integer | yes | – |
| darkened | – | – | – |
| desaturated | – | – | – |
| lightened | – | – | – |
| original | string | yes | – |
| saturated | – | – | – |
No examples provided.
list_locales ~17
List available locales for Faker-powered endpoints.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| description | string | yes | – |
| locales | array | yes | – |
No examples provided.
list_timezones ~16
List all available timezone abbreviations.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| timezones | object | yes | – |
No examples provided.
liters_to_gallons_uk ~38
Convert liters to UK gallons. Because a UK gallon isn't a US gallon.
| Name | Type | Req | Description |
|---|---|---|---|
| liters | number | yes | Volume in liters |
| Name | Type | Req | Description |
|---|---|---|---|
| gallons_uk | number | yes | – |
| liters | number | yes | – |
No examples provided.
liters_to_gallons_us ~28
Convert liters to US gallons.
| Name | Type | Req | Description |
|---|---|---|---|
| liters | number | yes | Volume in liters |
| Name | Type | Req | Description |
|---|---|---|---|
| gallons_us | number | yes | – |
| liters | number | yes | – |
No examples provided.
loan_payment ~45
Calculate monthly loan payment.
| Name | Type | Req | Description |
|---|---|---|---|
| months | integer | yes | Loan term in months |
| principal | number | yes | Loan amount |
| rate | number | yes | Annual interest rate (percentage) |
| Name | Type | Req | Description |
|---|---|---|---|
| annual_rate_percent | number | yes | – |
| monthly_payment | number | yes | – |
| principal | number | yes | – |
| term_months | integer | yes | – |
| total_interest | number | yes | – |
| total_paid | number | yes | – |
No examples provided.
log ~41
Calculate logarithm. Natural log if no base specified.
| Name | Type | Req | Description |
|---|---|---|---|
| base | – | – | Base (default: natural log) |
| number | number | yes | Number (must be positive) |
| Name | Type | Req | Description |
|---|---|---|---|
| base | – | yes | – |
| number | number | yes | – |
| result | number | yes | – |
No examples provided.
log10 ~27
Calculate base-10 logarithm.
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | Number (must be positive) |
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | – |
| result | number | yes | – |
No examples provided.
log2 ~27
Calculate base-2 logarithm.
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | Number (must be positive) |
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | – |
| result | number | yes | – |
No examples provided.
lorem_bytes ~29
Generate lorem ipsum of approximately specified byte size.
| Name | Type | Req | Description |
|---|---|---|---|
| size | integer | – | Approximate size in bytes |
| Name | Type | Req | Description |
|---|---|---|---|
| actual_bytes | integer | yes | – |
| requested_bytes | integer | yes | – |
| text | string | yes | – |
No examples provided.
lorem_html ~37
Generate lorem ipsum as HTML.
| Name | Type | Req | Description |
|---|---|---|---|
| include_headings | boolean | – | Include h2 headings |
| paragraphs | integer | – | Number of paragraphs |
| Name | Type | Req | Description |
|---|---|---|---|
| html | string | yes | – |
| paragraphs | integer | yes | – |
No examples provided.
lorem_markdown ~48
Generate lorem ipsum as Markdown.
| Name | Type | Req | Description |
|---|---|---|---|
| include_headings | boolean | – | Include headings |
| include_list | boolean | – | Include a bullet list |
| paragraphs | integer | – | Number of paragraphs |
| Name | Type | Req | Description |
|---|---|---|---|
| markdown | string | yes | – |
| paragraphs | integer | yes | – |
No examples provided.
lorem_paragraphs ~40
Generate lorem ipsum paragraphs.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | Number of paragraphs |
| start_with_lorem | boolean | – | Start with standard Lorem ipsum |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| paragraphs | array | yes | – |
| text | string | yes | – |
No examples provided.
lorem_sentences ~40
Generate lorem ipsum sentences.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | Number of sentences |
| start_with_lorem | boolean | – | Start with standard Lorem ipsum sentence |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| sentences | array | yes | – |
| text | string | yes | – |
No examples provided.
lorem_words ~23
Generate lorem ipsum words.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | Number of words |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | Number of words requested |
| text | string | yes | Words joined as a single string |
| words | array | yes | List of generated lorem ipsum words |
No examples provided.
lorem_words_2 ~40
Generate lorem ipsum words.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | Number of words |
| start_with_lorem | boolean | – | Start with 'Lorem ipsum' |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| text | string | yes | – |
| words | array | yes | – |
No examples provided.
lowercase ~23
Convert text to lowercase.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to lowercase |
| Name | Type | Req | Description |
|---|---|---|---|
| lowercase | string | yes | – |
| original | string | yes | – |
No examples provided.
magic_8_ball ~29
Ask the Magic 8-Ball.
| Name | Type | Req | Description |
|---|---|---|---|
| question | string | yes | Your yes/no question |
| Name | Type | Req | Description |
|---|---|---|---|
| answer | string | yes | – |
| question | string | yes | – |
| sentiment | string | yes | – |
No examples provided.
mask_text ~63
Mask text, keeping only start/end characters visible.
| Name | Type | Req | Description |
|---|---|---|---|
| end | integer | – | Characters to keep at end |
| mask_char | string | – | Masking character |
| start | integer | – | Characters to keep at start |
| text | string | yes | Text to mask |
| Name | Type | Req | Description |
|---|---|---|---|
| masked | string | yes | Masked text with only start/end characters visible |
| original_length | integer | yes | Length of the original text |
No examples provided.
max_value ~23
Find maximum value.
| Name | Type | Req | Description |
|---|---|---|---|
| numbers | string | yes | Comma-separated numbers |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| index | – | – | – |
| max | – | – | – |
| numbers | – | – | – |
No examples provided.
maximum ~23
Find the maximum value.
| Name | Type | Req | Description |
|---|---|---|---|
| numbers | string | yes | Comma-separated numbers |
| Name | Type | Req | Description |
|---|---|---|---|
| max | number | yes | – |
| numbers | array | yes | – |
No examples provided.
md5_checksum ~24
Generate MD5 checksum.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to hash |
| Name | Type | Req | Description |
|---|---|---|---|
| md5 | string | yes | – |
| text | string | yes | – |
No examples provided.
megabytes_to_gigabytes ~31
Convert megabytes to gigabytes.
| Name | Type | Req | Description |
|---|---|---|---|
| megabytes | number | yes | Size in megabytes |
| Name | Type | Req | Description |
|---|---|---|---|
| gigabytes | number | yes | – |
| megabytes | number | 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.