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 →
merge_json ~47
Merge two JSON objects.
| Name | Type | Req | Description |
|---|---|---|---|
| deep | boolean | – | Deep merge nested objects |
| json1 | string | yes | Base JSON object |
| json2 | string | yes | JSON object to merge |
| Name | Type | Req | Description |
|---|---|---|---|
| deep_merge | – | – | – |
| error | – | – | – |
| merged | – | – | – |
| valid | – | – | – |
No examples provided.
metaphone ~26
Generate Metaphone phonetic encoding.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Word to encode |
| Name | Type | Req | Description |
|---|---|---|---|
| metaphone | string | yes | Metaphone phonetic encoding |
| text | string | yes | Input word (uppercased) |
No examples provided.
meters_per_second_to_mph ~34
Convert meters per second to miles per hour.
| Name | Type | Req | Description |
|---|---|---|---|
| mps | number | yes | Speed in meters per second |
| Name | Type | Req | Description |
|---|---|---|---|
| meters_per_second | number | yes | – |
| mph | number | yes | – |
No examples provided.
meters_to_feet ~25
Convert meters to feet.
| Name | Type | Req | Description |
|---|---|---|---|
| meters | number | yes | Length in meters |
| Name | Type | Req | Description |
|---|---|---|---|
| feet | number | yes | – |
| meters | number | yes | – |
No examples provided.
miles_to_kilometers ~26
Convert miles to kilometers.
| Name | Type | Req | Description |
|---|---|---|---|
| miles | number | yes | Length in miles |
| Name | Type | Req | Description |
|---|---|---|---|
| kilometers | number | yes | – |
| miles | number | yes | – |
No examples provided.
milliliters_to_cups ~34
Convert milliliters to US cups.
| Name | Type | Req | Description |
|---|---|---|---|
| milliliters | number | yes | Volume in milliliters |
| Name | Type | Req | Description |
|---|---|---|---|
| cups_us | number | yes | – |
| milliliters | number | yes | – |
No examples provided.
milliliters_to_fluid_ounces ~37
Convert milliliters to US fluid ounces.
| Name | Type | Req | Description |
|---|---|---|---|
| milliliters | number | yes | Volume in milliliters |
| Name | Type | Req | Description |
|---|---|---|---|
| fluid_ounces_us | number | yes | – |
| milliliters | number | yes | – |
No examples provided.
min_value ~23
Find minimum value.
| Name | Type | Req | Description |
|---|---|---|---|
| numbers | string | yes | Comma-separated numbers |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| index | – | – | – |
| min | – | – | – |
| numbers | – | – | – |
No examples provided.
minify_json ~31
Minify (compress) a JSON string.
| Name | Type | Req | Description |
|---|---|---|---|
| json_string | string | yes | JSON string to minify |
| Name | Type | Req | Description |
|---|---|---|---|
| bytes_saved | – | – | – |
| error | – | – | – |
| minified | – | – | – |
| minified_length | – | – | – |
| original_length | – | – | – |
| savings_percent | – | – | – |
| valid | – | – | – |
No examples provided.
minimum ~23
Find the minimum value.
| Name | Type | Req | Description |
|---|---|---|---|
| numbers | string | yes | Comma-separated numbers |
| Name | Type | Req | Description |
|---|---|---|---|
| min | number | yes | – |
| numbers | array | yes | – |
No examples provided.
minutes_to_seconds ~24
Convert minutes to seconds.
| Name | Type | Req | Description |
|---|---|---|---|
| minutes | number | yes | Time in minutes |
| Name | Type | Req | Description |
|---|---|---|---|
| minutes | number | yes | – |
| seconds | number | yes | – |
No examples provided.
modulo ~37
Calculate a modulo b (remainder of a divided by b).
| Name | Type | Req | Description |
|---|---|---|---|
| a | number | yes | Dividend |
| b | number | yes | Divisor |
| Name | Type | Req | Description |
|---|---|---|---|
| a | – | – | – |
| b | – | – | – |
| code | – | – | – |
| error | – | – | – |
| result | – | – | – |
No examples provided.
morse_decode ~27
Decode Morse code to text.
| Name | Type | Req | Description |
|---|---|---|---|
| morse | string | yes | Morse code to decode |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| decoded | – | – | – |
| error | – | – | – |
| morse | – | – | – |
No examples provided.
morse_encode ~28
Encode text to Morse code.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | Text to encode to Morse code |
| Name | Type | Req | Description |
|---|---|---|---|
| morse | string | yes | – |
| original | string | yes | – |
No examples provided.
mortgage_calculator ~56
Calculate mortgage details.
| Name | Type | Req | Description |
|---|---|---|---|
| down_payment | number | – | Down payment |
| home_price | number | yes | Home price |
| rate | number | yes | Annual interest rate (percentage) |
| years | integer | – | Loan term in years |
| Name | Type | Req | Description |
|---|---|---|---|
| annual_rate_percent | number | yes | – |
| down_payment | number | yes | – |
| down_payment_percent | number | yes | – |
| home_price | number | yes | – |
| loan_amount | number | yes | – |
| monthly_payment | number | yes | – |
| term_years | integer | yes | – |
| total_interest | number | yes | – |
| total_paid | number | yes | – |
No examples provided.
mph_to_kph ~31
Convert miles per hour to kilometers per hour.
| Name | Type | Req | Description |
|---|---|---|---|
| mph | number | yes | Speed in miles per hour |
| Name | Type | Req | Description |
|---|---|---|---|
| kph | number | yes | – |
| mph | number | yes | – |
No examples provided.
multiply ~27
Multiply two or more numbers together.
| Name | Type | Req | Description |
|---|---|---|---|
| numbers | string | yes | Comma-separated numbers to multiply |
| Name | Type | Req | Description |
|---|---|---|---|
| numbers | array | yes | – |
| product | – | yes | – |
No examples provided.
name_to_hex ~27
Convert a CSS color name to hex.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | CSS color name |
| Name | Type | Req | Description |
|---|---|---|---|
| available_colors | – | – | – |
| found | boolean | yes | – |
| hex | – | – | – |
| name | string | yes | – |
No examples provided.
nearest_power ~40
Find the nearest power of a base to a number.
| Name | Type | Req | Description |
|---|---|---|---|
| base | integer | – | Base |
| number | integer | yes | Number to find nearest power for |
| Name | Type | Req | Description |
|---|---|---|---|
| base | – | – | – |
| error | – | – | – |
| exponent | – | – | – |
| lower_power | – | – | – |
| nearest_power | – | – | – |
| number | – | – | – |
| upper_power | – | – | – |
No examples provided.
netmask_to_cidr ~42
Convert subnet mask to CIDR prefix length.
| Name | Type | Req | Description |
|---|---|---|---|
| netmask | string | yes | Netmask (e.g., 255.255.255.0) |
| Name | Type | Req | Description |
|---|---|---|---|
| cidr_notation | – | – | – |
| cidr_prefix | – | – | – |
| error | – | – | – |
| netmask | string | yes | – |
No examples provided.
network_info ~40
Get information about a network.
| Name | Type | Req | Description |
|---|---|---|---|
| network | string | yes | Network in CIDR notation (e.g., 192.168.1.0/24) |
| Name | Type | Req | Description |
|---|---|---|---|
| broadcast_address | – | – | – |
| error | – | – | – |
| first_host | – | – | – |
| hostmask | – | – | – |
| is_private | – | – | – |
| last_host | – | – | – |
| netmask | – | – | – |
| network | string | yes | – |
| network_address | – | – | – |
| num_addresses | – | – | – |
| prefix_length | – | – | – |
| valid | – | – | – |
| version | – | – | – |
No examples provided.
normalize_url ~80
Normalize a URL to a canonical form.
| Name | Type | Req | Description |
|---|---|---|---|
| lowercase_host | boolean | – | Lowercase hostname |
| remove_default_port | boolean | – | Remove default port (80/443) |
| remove_trailing_slash | boolean | – | Remove trailing slash from path |
| sort_params | boolean | – | Sort query parameters |
| url | string | yes | URL to normalize |
| Name | Type | Req | Description |
|---|---|---|---|
| changes_made | boolean | yes | – |
| normalized | string | yes | – |
| original | string | yes | – |
No examples provided.
normalize_whitespace ~28
Normalize whitespace (multiple spaces to single).
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to normalize |
| Name | Type | Req | Description |
|---|---|---|---|
| normalized | string | yes | – |
| original | string | yes | – |
No examples provided.
nth_cube ~24
Get the nth cube number.
| Name | Type | Req | Description |
|---|---|---|---|
| n | integer | yes | Which cube number |
| Name | Type | Req | Description |
|---|---|---|---|
| cube | integer | yes | – |
| n | integer | yes | – |
No examples provided.
nth_prime ~35
Get the nth prime number.
| Name | Type | Req | Description |
|---|---|---|---|
| n | integer | yes | Which prime number (1=2, 2=3, etc.) |
| Name | Type | Req | Description |
|---|---|---|---|
| n | integer | yes | – |
| prime | integer | yes | – |
No examples provided.
nth_root ~37
Calculate the nth root of a number.
| Name | Type | Req | Description |
|---|---|---|---|
| n | integer | yes | Root degree |
| number | number | yes | Number to find root of |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| n | – | – | – |
| number | – | – | – |
| result | – | – | – |
No examples provided.
nth_square ~24
Get the nth square number.
| Name | Type | Req | Description |
|---|---|---|---|
| n | integer | yes | Which square number |
| Name | Type | Req | Description |
|---|---|---|---|
| n | integer | yes | – |
| square | integer | yes | – |
No examples provided.
nth_triangular ~25
Get the nth triangular number.
| Name | Type | Req | Description |
|---|---|---|---|
| n | integer | yes | Which triangular number |
| Name | Type | Req | Description |
|---|---|---|---|
| formula | string | yes | – |
| n | integer | yes | – |
| triangular | integer | yes | – |
No examples provided.
null ~17
Returns null. For when you need a null.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| value | null | yes | – |
No examples provided.
number_to_roman ~33
Convert a number to Roman numerals.
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | Number to convert (1-3999) |
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | – |
| roman | string | yes | – |
No examples provided.
number_to_words ~25
Convert a number to words.
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | Number to convert |
| Name | Type | Req | Description |
|---|---|---|---|
| number | integer | yes | – |
| words | string | yes | – |
No examples provided.
ounces_to_grams ~25
Convert ounces to grams.
| Name | Type | Req | Description |
|---|---|---|---|
| ounces | number | yes | Weight in ounces |
| Name | Type | Req | Description |
|---|---|---|---|
| grams | number | yes | – |
| ounces | number | yes | – |
No examples provided.
pad ~59
Pad text to a specified length.
| Name | Type | Req | Description |
|---|---|---|---|
| char | string | – | Padding character |
| length | integer | yes | Target length |
| side | string | – | Side to pad (left, right, both) |
| text | string | yes | The text to pad |
| Name | Type | Req | Description |
|---|---|---|---|
| length | integer | yes | – |
| original | string | yes | – |
| padded | string | yes | – |
No examples provided.
parse_date ~33
Parse a date string.
| Name | Type | Req | Description |
|---|---|---|---|
| date | string | yes | Date string to parse |
| format | string | – | Input format |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| format | – | – | – |
| iso | – | – | – |
| original | – | – | – |
| parsed | – | – | – |
No examples provided.
parse_url ~25
Parse a URL into its components.
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | URL to parse |
| Name | Type | Req | Description |
|---|---|---|---|
| components | – | yes | – |
| is_secure | boolean | yes | – |
| query_params | object | yes | – |
| url | string | yes | – |
No examples provided.
parse_url_2 ~27
Parse a URL into its components.
| Name | Type | Req | Description |
|---|---|---|---|
| url | string | yes | URL to parse |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| fragment | – | – | – |
| hostname | – | – | – |
| netloc | – | – | – |
| password | – | – | – |
| path | – | – | – |
| port | – | – | – |
| query | – | – | – |
| query_params | – | – | – |
| scheme | – | – | – |
| url | – | – | – |
| username | – | – | – |
No examples provided.
pascal_case ~26
Convert text to PascalCase.
| Name | Type | Req | Description |
|---|---|---|---|
| text | string | yes | The text to convert |
| Name | Type | Req | Description |
|---|---|---|---|
| original | string | yes | – |
| pascal_case | string | yes | – |
No examples provided.
password_entropy ~26
Calculate password entropy (bits of randomness).
| Name | Type | Req | Description |
|---|---|---|---|
| password | string | yes | Password to analyze |
| Name | Type | Req | Description |
|---|---|---|---|
| charset_size | integer | yes | – |
| entropy_bits | number | yes | – |
| has_digits | boolean | yes | – |
| has_lowercase | boolean | yes | – |
| has_special | boolean | yes | – |
| has_uppercase | boolean | yes | – |
| password_length | integer | yes | – |
| strength | string | yes | – |
No examples provided.
percentage ~33
Calculate what percentage value is of total.
| Name | Type | Req | Description |
|---|---|---|---|
| total | number | yes | The total |
| value | number | yes | The value |
| Name | Type | Req | Description |
|---|---|---|---|
| code | – | – | – |
| error | – | – | – |
| percentage | – | – | – |
| total | – | – | – |
| value | – | – | – |
No examples provided.
percentage_change ~35
Calculate percentage change between two values.
| Name | Type | Req | Description |
|---|---|---|---|
| new_value | number | yes | New value |
| old_value | number | yes | Original value |
| Name | Type | Req | Description |
|---|---|---|---|
| absolute_change | – | – | – |
| code | – | – | – |
| direction | – | – | – |
| error | – | – | – |
| new_value | – | – | – |
| old_value | – | – | – |
| percent_change | – | – | – |
No examples provided.
pick_random ~43
Pick random item(s) from a list.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | Number of items to pick |
| items | string | yes | Comma-separated items to pick from |
| Name | Type | Req | Description |
|---|---|---|---|
| count | – | – | – |
| from | – | – | – |
| picked | – | yes | – |
No examples provided.
ping ~13
Ping endpoint. Returns pong.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| ping | string | yes | – |
No examples provided.
point_in_polygon ~67
Check if a point is inside a polygon (ray casting algorithm).
| Name | Type | Req | Description |
|---|---|---|---|
| lat | number | yes | Point latitude |
| lon | number | yes | Point longitude |
| polygon | string | yes | Polygon vertices as lat1,lon1;lat2,lon2;lat3,lon3... |
| Name | Type | Req | Description |
|---|---|---|---|
| is_inside | boolean | yes | – |
| point | – | yes | – |
| polygon_vertices | integer | yes | – |
No examples provided.
polygon_area ~58
Calculate area of a polygon on Earth's surface.
| Name | Type | Req | Description |
|---|---|---|---|
| polygon | string | yes | Polygon vertices as lat1,lon1;lat2,lon2;lat3,lon3... |
| unit | string | – | Unit: km2 or mi2 |
| Name | Type | Req | Description |
|---|---|---|---|
| area | number | yes | – |
| polygon_vertices | integer | yes | – |
| unit | string | yes | – |
No examples provided.
polygon_centroid ~42
Calculate centroid of a polygon.
| Name | Type | Req | Description |
|---|---|---|---|
| polygon | string | yes | Polygon vertices as lat1,lon1;lat2,lon2;lat3,lon3... |
| Name | Type | Req | Description |
|---|---|---|---|
| centroid | – | yes | – |
| polygon_vertices | integer | yes | – |
No examples provided.
polyline_length ~58
Calculate total length of a polyline.
| Name | Type | Req | Description |
|---|---|---|---|
| polyline | string | yes | Polyline points as lat1,lon1;lat2,lon2;lat3,lon3... |
| unit | string | – | Unit: km or mi |
| Name | Type | Req | Description |
|---|---|---|---|
| points | integer | yes | – |
| segments | integer | yes | – |
| total_length | number | yes | – |
| unit | string | yes | – |
No examples provided.
port_info ~24
Get information about a port number.
| Name | Type | Req | Description |
|---|---|---|---|
| port | integer | yes | Port number |
| Name | Type | Req | Description |
|---|---|---|---|
| description | string | yes | – |
| is_well_known | boolean | yes | – |
| port | integer | yes | – |
| port_type | string | yes | – |
| requires_root | boolean | yes | – |
| service_name | string | yes | – |
No examples provided.
pounds_to_kilograms ~26
Convert pounds to kilograms.
| Name | Type | Req | Description |
|---|---|---|---|
| pounds | number | yes | Weight in pounds |
| Name | Type | Req | Description |
|---|---|---|---|
| kilograms | number | yes | – |
| pounds | number | yes | – |
No examples provided.
power ~34
Calculate base raised to the power of exponent.
| Name | Type | Req | Description |
|---|---|---|---|
| base | number | yes | The base |
| exponent | number | yes | The exponent |
| Name | Type | Req | Description |
|---|---|---|---|
| base | number | yes | – |
| exponent | number | yes | – |
| result | number | yes | – |
No examples provided.
present_value ~48
Calculate present value of a future amount.
| Name | Type | Req | Description |
|---|---|---|---|
| future_value | number | yes | Future value |
| rate | number | yes | Annual discount rate (percentage) |
| years | integer | yes | Number of years |
| Name | Type | Req | Description |
|---|---|---|---|
| future_value | number | yes | – |
| present_value | number | yes | – |
| rate_percent | number | yes | – |
| years | 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.