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 →
count_char ~61
Count occurrences of a character (e.g., how many 'r' in 'strawberry').
| Name | Type | Req | Description |
|---|---|---|---|
| case_sensitive | boolean | – | Case sensitive counting |
| char | string | yes | Character to count |
| text | string | yes | The text to search in |
| Name | Type | Req | Description |
|---|---|---|---|
| case_sensitive | boolean | yes | – |
| character | string | yes | – |
| count | integer | yes | – |
| positions | array | yes | – |
| text | string | yes | – |
No examples provided.
count_digits ~25
Count the number of digits.
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | Number to count digits |
| Name | Type | Req | Description |
|---|---|---|---|
| digit_count | integer | yes | – |
| digit_frequency | object | yes | – |
| number | integer | yes | – |
No examples provided.
count_items ~25
Count occurrences of each item.
| Name | Type | Req | Description |
|---|---|---|---|
| items | string | yes | Comma-separated items |
| Name | Type | Req | Description |
|---|---|---|---|
| counts | object | yes | – |
| items | array | yes | – |
| total | integer | yes | – |
| unique | integer | yes | – |
No examples provided.
count_substring ~59
Count occurrences of a substring.
| Name | Type | Req | Description |
|---|---|---|---|
| case_sensitive | boolean | – | Case sensitive counting |
| overlapping | boolean | – | Count overlapping occurrences |
| substring | string | yes | Substring to count |
| text | string | yes | The text to search in |
| Name | Type | Req | Description |
|---|---|---|---|
| case_sensitive | boolean | yes | – |
| count | integer | yes | – |
| overlapping | boolean | yes | – |
| positions | array | yes | – |
| substring | string | yes | – |
| text | string | yes | – |
No examples provided.
crc32_checksum ~24
Calculate CRC32 checksum.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to checksum |
| Name | Type | Req | Description |
|---|---|---|---|
| crc32 | string | yes | – |
| crc32_int | integer | yes | – |
| text | string | yes | – |
No examples provided.
cube ~24
Calculate the cube of a number.
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | Number to cube |
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | – |
| result | number | yes | – |
No examples provided.
cube_root ~29
Calculate the cube root of a number.
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | Number to find cube root of |
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | – |
| result | number | yes | – |
No examples provided.
cups_to_milliliters ~32
Convert US cups to milliliters.
| Name | Type | Req | Description |
|---|---|---|---|
| cups | number | yes | Volume in cups (US) |
| Name | Type | Req | Description |
|---|---|---|---|
| cups_us | number | yes | – |
| milliliters | number | yes | – |
No examples provided.
current_time ~37
Get current time in specified timezone.
| Name | Type | Req | Description |
|---|---|---|---|
| timezone_name | string | – | Timezone name (e.g., UTC, EST, PST, JST) |
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | yes | – |
| datetime | string | yes | – |
| day_of_week | string | yes | – |
| day_of_year | integer | yes | – |
| time | string | yes | – |
| timestamp | integer | yes | – |
| timezone | string | yes | – |
| utc_offset | number | yes | – |
No examples provided.
dad_joke ~15
Get a random dad joke.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| punchline | string | yes | – |
| setup | string | yes | – |
No examples provided.
daily_water_intake ~44
Calculate recommended daily water intake.
| Name | Type | Req | Description |
|---|---|---|---|
| activity_level | string | – | Activity level: low, moderate, high |
| weight_kg | number | yes | Weight in kilograms |
| Name | Type | Req | Description |
|---|---|---|---|
| activity_level | string | yes | – |
| glasses_250ml | integer | yes | – |
| recommended_liters | number | yes | – |
| recommended_ml | integer | yes | – |
| weight_kg | number | yes | – |
No examples provided.
darken_color ~45
Darken a color by a percentage.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | integer | – | Amount to darken (0-100) |
| hex_color | string | yes | Hex color to darken |
| Name | Type | Req | Description |
|---|---|---|---|
| amount | integer | yes | – |
| darkened | – | – | – |
| desaturated | – | – | – |
| lightened | – | – | – |
| original | string | yes | – |
| saturated | – | – | – |
No examples provided.
date_diff ~40
Calculate difference between two dates.
| Name | Type | Req | Description |
|---|---|---|---|
| date1 | string | yes | First date (ISO format) |
| date2 | string | yes | Second date (ISO format) |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| date1 | – | – | – |
| date2 | – | – | – |
| difference | – | – | – |
| error | – | – | – |
No examples provided.
date_to_timestamp ~31
Convert date to Unix timestamp.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | yes | Date string (YYYY-MM-DD or ISO format) |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| date | – | – | – |
| error | – | – | – |
| timestamp | – | – | – |
| timestamp_ms | – | – | – |
No examples provided.
datetime_to_unix ~29
Convert datetime to Unix timestamp.
| Name | Type | Req | Description |
|---|---|---|---|
| datetime_str | string | yes | Datetime in ISO format |
| Name | Type | Req | Description |
|---|---|---|---|
| datetime | – | – | – |
| error | – | – | – |
| timestamp | – | – | – |
| timestamp_ms | – | – | – |
No examples provided.
day_of_year ~30
Get the day of year for a date.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | yes | Date (YYYY-MM-DD) |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| date | – | – | – |
| day_of_year | – | – | – |
| days_remaining | – | – | – |
| error | – | – | – |
| percentage_of_year | – | – | – |
| total_days_in_year | – | – | – |
No examples provided.
days_in_month ~38
Get the number of days in a month.
| Name | Type | Req | Description |
|---|---|---|---|
| month | integer | yes | Month (1-12) |
| year | integer | yes | Year |
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | yes | – |
| month | integer | yes | – |
| month_name | string | yes | – |
| year | integer | yes | – |
No examples provided.
days_in_month_2 ~40
Get the number of days in a month.
| Name | Type | Req | Description |
|---|---|---|---|
| month | integer | yes | Month (1-12) |
| year | integer | yes | Year |
| Name | Type | Req | Description |
|---|---|---|---|
| days | integer | yes | – |
| month | integer | yes | – |
| month_name | string | yes | – |
| year | integer | yes | – |
No examples provided.
decimal_to_binary ~23
Convert decimal to binary.
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | Decimal number |
| Name | Type | Req | Description |
|---|---|---|---|
| binary | string | yes | – |
| decimal | integer | yes | – |
No examples provided.
decimal_to_dms ~45
Convert decimal degrees to DMS (degrees, minutes, seconds).
| Name | Type | Req | Description |
|---|---|---|---|
| coordinate_type | string | yes | Type: lat or lon |
| decimal | number | yes | Decimal degrees |
| Name | Type | Req | Description |
|---|---|---|---|
| decimal | number | yes | – |
| dms | – | yes | – |
| dms_string | string | yes | – |
No examples provided.
decimal_to_hexadecimal ~24
Convert decimal to hexadecimal.
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | Decimal number |
| Name | Type | Req | Description |
|---|---|---|---|
| decimal | integer | yes | – |
| hexadecimal | string | yes | – |
No examples provided.
decimal_to_octal ~25
Convert decimal to octal.
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | Decimal number |
| Name | Type | Req | Description |
|---|---|---|---|
| decimal | integer | yes | – |
| octal | string | yes | – |
No examples provided.
deg_to_rad ~24
Convert degrees to radians.
| Name | Type | Req | Description |
|---|---|---|---|
| degrees | number | yes | Angle in degrees |
| Name | Type | Req | Description |
|---|---|---|---|
| degrees | number | yes | – |
| radians | number | yes | – |
No examples provided.
desaturate_color ~48
Decrease color saturation by a percentage.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | integer | – | Amount to desaturate (0-100) |
| hex_color | string | yes | Hex color to desaturate |
| Name | Type | Req | Description |
|---|---|---|---|
| amount | integer | yes | – |
| darkened | – | – | – |
| desaturated | – | – | – |
| lightened | – | – | – |
| original | string | yes | – |
| saturated | – | – | – |
No examples provided.
describe_data ~26
Get descriptive statistics for a dataset.
| Name | Type | Req | Description |
|---|---|---|---|
| numbers | string | yes | Comma-separated numbers |
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | yes | – |
| iqr | number | yes | – |
| max | number | yes | – |
| mean | number | yes | – |
| median | number | yes | – |
| min | number | yes | – |
| q1 | number | yes | – |
| q3 | number | yes | – |
| range | number | yes | – |
| std_dev | number | yes | – |
| sum | number | yes | – |
| variance | number | yes | – |
No examples provided.
deslugify ~52
Convert a slug back to readable text.
| Name | Type | Req | Description |
|---|---|---|---|
| capitalize | boolean | – | Capitalize words |
| separator | string | – | Word separator in slug |
| slug | string | yes | Slug to convert back to text |
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | – |
| text | string | yes | – |
No examples provided.
destination_point ~69
Calculate destination point given start, bearing, and distance.
| Name | Type | Req | Description |
|---|---|---|---|
| bearing | number | yes | Bearing in degrees |
| distance | number | yes | Distance to travel |
| lat | number | yes | Starting latitude |
| lon | number | yes | Starting longitude |
| unit | string | – | Unit: km or mi |
| Name | Type | Req | Description |
|---|---|---|---|
| bearing | number | yes | – |
| destination | – | yes | – |
| distance | number | yes | – |
| origin | – | yes | – |
| unit | string | yes | – |
No examples provided.
detect_case ~25
Detect the case style of text.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to analyze |
| Name | Type | Req | Description |
|---|---|---|---|
| detected_cases | array | yes | – |
| text | string | yes | – |
No examples provided.
digital_root ~34
Calculate the digital root (repeated digit sum until single digit).
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | Number to calculate digital root for |
| Name | Type | Req | Description |
|---|---|---|---|
| digital_root | integer | yes | – |
| iterations | integer | yes | – |
| number | integer | yes | – |
| steps | array | yes | – |
No examples provided.
distance ~71
Calculate Euclidean distance between two points.
| Name | Type | Req | Description |
|---|---|---|---|
| x1 | number | yes | X coordinate of point 1 |
| x2 | number | yes | X coordinate of point 2 |
| y1 | number | yes | Y coordinate of point 1 |
| y2 | number | yes | Y coordinate of point 2 |
| Name | Type | Req | Description |
|---|---|---|---|
| distance | number | yes | – |
| point1 | – | yes | – |
| point2 | – | yes | – |
No examples provided.
divide ~39
Divide a by b.
| Name | Type | Req | Description |
|---|---|---|---|
| a | number | yes | Dividend (number to be divided) |
| b | number | yes | Divisor (number to divide by) |
| Name | Type | Req | Description |
|---|---|---|---|
| a | – | – | – |
| b | – | – | – |
| code | – | – | – |
| error | – | – | – |
| integer_quotient | – | – | – |
| remainder | – | – | – |
| result | – | – | – |
No examples provided.
dms_to_decimal ~65
Convert DMS (degrees, minutes, seconds) to decimal degrees.
| Name | Type | Req | Description |
|---|---|---|---|
| degrees | integer | yes | Degrees |
| direction | string | yes | Direction: N, S, E, or W |
| minutes | integer | yes | Minutes |
| seconds | number | yes | Seconds |
| Name | Type | Req | Description |
|---|---|---|---|
| decimal | number | yes | – |
| dms | string | yes | – |
No examples provided.
echo ~26
Echo back the message. For testing.
| Name | Type | Req | Description |
|---|---|---|---|
| message | string | yes | Message to echo back |
| Name | Type | Req | Description |
|---|---|---|---|
| echo | string | yes | – |
No examples provided.
empty_array ~13
Returns an empty array.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| value | array | yes | – |
No examples provided.
empty_object ~13
Returns an empty object.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| value | object | yes | – |
No examples provided.
end_of_period ~48
Get the end 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 |
|---|---|---|---|
| end | – | – | – |
| error | – | – | – |
| original | – | – | – |
| period | – | – | – |
No examples provided.
ends_with ~39
Check if text ends with a suffix.
| Name | Type | Req | Description |
|---|---|---|---|
| suffix | string | yes | The suffix to look for |
| text | string | yes | The text to check |
| Name | Type | Req | Description |
|---|---|---|---|
| ends_with | boolean | yes | – |
| suffix | string | yes | – |
| text | string | yes | – |
No examples provided.
escape_pattern ~29
Escape special regex characters in text.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to escape for use in regex |
| Name | Type | Req | Description |
|---|---|---|---|
| escaped | string | yes | – |
| original | string | yes | – |
| special_chars_escaped | integer | yes | – |
No examples provided.
estimate_body_fat ~82
Estimate body fat percentage using US Navy method.
| Name | Type | Req | Description |
|---|---|---|---|
| height_cm | number | yes | Height in cm |
| hip_cm | number | – | Hip circumference in cm (required for females) |
| neck_cm | number | yes | Neck circumference in cm |
| sex | string | yes | Sex: male or female |
| waist_cm | number | yes | Waist circumference in cm |
| Name | Type | Req | Description |
|---|---|---|---|
| body_fat_percent | – | – | – |
| category | – | – | – |
| code | – | – | – |
| error | – | – | – |
| height_cm | – | – | – |
| hip_cm | – | – | – |
| neck_cm | – | – | – |
| sex | – | – | – |
| waist_cm | – | – | – |
No examples provided.
estimate_hash_time ~32
Estimate time to crack a password using brute force.
| Name | Type | Req | Description |
|---|---|---|---|
| password | string | yes | Password to estimate crack time for |
| Name | Type | Req | Description |
|---|---|---|---|
| charset_size | – | – | – |
| crack_times | – | – | – |
| error | – | – | – |
| password_length | – | – | – |
| total_combinations | – | – | – |
No examples provided.
exp ~25
Calculate e raised to the power of number.
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | Exponent |
| Name | Type | Req | Description |
|---|---|---|---|
| number | number | yes | – |
| result | number | yes | – |
No examples provided.
expand_cidr ~44
Expand a CIDR to list of individual IPs.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | Maximum IPs to return |
| network | string | yes | Network in CIDR notation |
| Name | Type | Req | Description |
|---|---|---|---|
| error | – | – | – |
| ips | – | – | – |
| network | – | – | – |
| returned | – | – | – |
| total_addresses | – | – | – |
| truncated | – | – | – |
No examples provided.
extract_domain ~40
Extract domain from a URL.
| Name | Type | Req | Description |
|---|---|---|---|
| include_subdomain | boolean | – | Include subdomain in result |
| url | string | yes | URL to extract domain from |
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | yes | – |
| full_domain | string | yes | – |
| hostname | string | yes | – |
| subdomain | – | – | – |
| url | string | yes | – |
No examples provided.
extract_emails ~28
Extract all email addresses from text.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to extract from |
| Name | Type | Req | Description |
|---|---|---|---|
| emails | array | yes | – |
| text | string | yes | – |
No examples provided.
extract_groups ~37
Extract capture groups from a pattern match.
| Name | Type | Req | Description |
|---|---|---|---|
| pattern | string | yes | Pattern with capture groups |
| text | string | yes | Text to search |
| Name | Type | Req | Description |
|---|---|---|---|
| error | – | – | – |
| full_match | – | – | – |
| groups | – | – | – |
| matched | – | – | – |
| named_groups | – | – | – |
| pattern | string | yes | – |
| text | – | – | – |
| valid_pattern | – | – | – |
No examples provided.
extract_keywords ~39
Extract keywords from text based on frequency.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to extract keywords from |
| top_n | integer | – | Number of keywords |
| Name | Type | Req | Description |
|---|---|---|---|
| keywords | array | yes | Top keywords ranked by frequency |
| total_words | integer | yes | Total word count (excluding stop words filter) |
| unique_words | integer | yes | Number of unique words |
No examples provided.
extract_numbers ~26
Extract all numbers from text.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to extract from |
| Name | Type | Req | Description |
|---|---|---|---|
| numbers | array | yes | – |
| text | string | yes | – |
No examples provided.
extract_urls ~26
Extract all URLs from text.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to extract from |
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | – |
| urls | array | yes | – |
No examples provided.
factorial ~27
Calculate the factorial of a number.
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | The number (0-170) |
| Name | Type | Req | Description |
|---|---|---|---|
| factorial | integer | yes | – |
| number | integer | yes | – |
No examples provided.
fahrenheit_to_celsius ~27
Convert Fahrenheit to Celsius.
| Name | Type | Req | Description |
|---|---|---|---|
| fahrenheit | number | yes | Temperature in Fahrenheit |
| Name | Type | Req | Description |
|---|---|---|---|
| celsius | number | yes | – |
| fahrenheit | 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.