Fermat
OpenAI-compatible LLM gateway: pay per request with an API key, signed receipt for each call.
Sollte ich dies verwenden
Qualität und Sicherheit
A
Befunde (3)
- LOWTool 'docs' description lacks action verbin docs
- LOWTool 'key' description lacks action verbin key
- LOWTool 'route_explain' description lacks action verbin route_explain
Basierend auf einer automatisierten Analyse der Tool-Definitionen und der Einhaltung des Protokolls.
Kontextkosten
~3,342Tokens (Tool-Definitionen)
~2.8 KBTypische Antwortgröße
Erhebliche Auswirkung auf die Aufmerksamkeit (2.61% von 128k Kontext)
Dies ist die ungefähre Anzahl der Tokens, die jedes Mal verbraucht werden, wenn die Tools des Servers in den Kontext eines Modells geladen werden. Höhere Werte verringern die Aufmerksamkeit, die für andere Aufgaben verfügbar ist.
Installieren
Installation mit einem Klick
Fügen Sie dies Ihrer Datei `claude_desktop_config.json` hinzu:
{
"mcpServers": {
"gateway": {
"url": "https://mcp.fermat.ai.phase.xyz/mcp"
}
}
}Remote-Endpunkte
https://mcp.fermat.ai.phase.xyz/mcpstreamable-httpWas es kann
Tool-Inventar
Tools (11)
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🔴chat(model, prompt, system, messages, max_tokens, ...)
Run a chat completion on the Fermat gateway, paid from the Phase API key or the wallet this server uses (free models cost nothing). Returns the answer, actual price, task id for the receipt and usage.
Eingabe-Schema
{
"type": "object",
"properties": {
"model": {
"type": "string",
"description": "model id from list_models, or a class: auto | eco | premium | agentic"
},
"prompt": {
"type": "string",
"description": "single user message (use messages for multi-turn)"
},
"system": {
"type": "string",
"description": "optional system prompt"
},
"messages": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"properties": {
"role": {
"type": "string",
"description": "system | user | assistant"
},
"content": {
"type": "string"
}
},
"required": [
"role",
"content"
],
"additionalProperties": false
},
"description": "full conversation; overrides prompt/system"
},
"max_tokens": {
"type": "integer",
"description": "output cap; also bounds the price ceiling"
},
"temperature": {
"type": [
"null",
"number"
],
"description": "sampling temperature 0–2 (Claude ignores it)"
},
"session": {
"type": "string",
"description": "saved session id (from the session tool or a /s/<id> link): the gateway prepends its history and appends this turn"
}
},
"required": [
"model"
],
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"text": {
"type": "string"
},
"model": {
"type": "string"
},
"routed_model": {
"type": "string"
},
"level": {
"type": "string"
},
"provider": {
"type": "string"
},
"price_usd": {
"type": "string"
},
"ceiling_usd": {
"type": "string"
},
"payment": {
"type": "string"
},
"tx_hash": {
"type": "string"
},
"task_id": {
"type": "string"
},
"batch": {
"type": "string",
"description": "payment batch this call was charged to (settled with one transaction later)"
},
"session": {
"type": "string"
},
"session_url": {
"type": "string"
},
"receipt_url": {
"type": "string"
},
"elapsed_ms": {
"type": "integer"
},
"usage": {
"type": "object",
"properties": {
"prompt_tokens": {
"type": "integer"
},
"completion_tokens": {
"type": "integer"
}
},
"required": [
"prompt_tokens",
"completion_tokens"
],
"additionalProperties": false
}
},
"required": [
"text",
"model",
"provider",
"price_usd",
"payment",
"task_id",
"elapsed_ms",
"usage"
],
"additionalProperties": false
}🔴compare(prompt, system, messages, models, max_tokens)
Run one prompt on 2 to 4 Fermat models or classes at once and compare answer, price, tokens and speed; returns the cheapest, the most expensive and how many times more the expensive one cost. Spends credit for each model. Default models: the cheapest paid chat model, auto, and the most expensive open chat model.
Eingabe-Schema
{
"type": "object",
"properties": {
"prompt": {
"type": "string",
"description": "single user message (use messages for multi-turn)"
},
"system": {
"type": "string",
"description": "optional system prompt"
},
"messages": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"properties": {
"role": {
"type": "string",
"description": "system | user | assistant"
},
"content": {
"type": "string"
}
},
"required": [
"role",
"content"
],
"additionalProperties": false
},
"description": "full conversation; overrides prompt/system"
},
"models": {
"type": [
"null",
"array"
],
"items": {
"type": "string"
},
"description": "2 to 4 model ids or classes; default: the cheapest paid chat model, auto, and the most expensive open chat model"
},
"max_tokens": {
"type": "integer",
"description": "output cap for every model (default: none)"
}
},
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"results": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"properties": {
"model": {
"type": "string"
},
"text": {
"type": "string"
},
"truncated": {
"type": "boolean",
"description": "true when text was cut to 2,000 characters"
},
"routed_model": {
"type": "string"
},
"level": {
"type": "string"
},
"provider": {
"type": "string"
},
"price_usd": {
"type": "string"
},
"tokens": {
"type": "object",
"properties": {
"prompt": {
"type": "integer"
},
"completion": {
"type": "integer"
}
},
"required": [
"prompt",
"completion"
],
"additionalProperties": false
},
"elapsed_ms": {
"type": "integer"
},
"task_id": {
"type": "string"
},
"receipt_url": {
"type": "string"
},
"error": {
"type": "string"
}
},
"required": [
"model",
"tokens",
"elapsed_ms"
],
"additionalProperties": false
}
},
"cheapest": {
"type": "string",
"description": "model with the lowest price among the answers"
},
"most_expensive": {
"type": "string",
"description": "model with the highest price among the answers"
},
"ratio": {
"type": "number",
"description": "most expensive price divided by the cheapest, one decimal"
}
},
"required": [
"results"
],
"additionalProperties": false
}🟢docs(topic)
Fermat documentation in short: connect, pricing (with the live price table), savings, mcp, byok, data, receipts, limits.
Eingabe-Schema
{
"type": "object",
"properties": {
"topic": {
"description": "what to explain",
"enum": [
"connect",
"pricing",
"savings",
"mcp",
"byok",
"data",
"receipts",
"limits"
],
"type": "string"
}
},
"required": [
"topic"
],
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"topic": {
"type": "string"
},
"text": {
"type": "string"
}
},
"required": [
"topic",
"text"
],
"additionalProperties": false
}🔴embed(model, input)
Compute embeddings on the Fermat gateway (paid from the Phase API key or the wallet).
Eingabe-Schema
{
"type": "object",
"properties": {
"model": {
"type": "string",
"description": "embeddings model id"
},
"input": {
"type": [
"null",
"array"
],
"items": {
"type": "string"
}
}
},
"required": [
"model",
"input"
],
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"vectors": {
"type": [
"null",
"array"
],
"items": {
"type": [
"null",
"array"
],
"items": {
"type": "number"
}
}
},
"price_usd": {
"type": "string"
},
"payment": {
"type": "string"
}
},
"required": [
"vectors",
"price_usd",
"payment"
],
"additionalProperties": false
}🟢key
Balance, daily cap and spend of the Phase API key this server pays with (key mode).
Eingabe-Schema
{
"type": "object",
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"key": {
"type": "object",
"additionalProperties": true
}
},
"additionalProperties": false
}🟢list_models(layer)
List models of the Fermat gateway with prices (USD per 1M tokens, fee per call) and layer (flagship | open | class | free).
Eingabe-Schema
{
"type": "object",
"properties": {
"layer": {
"type": "string",
"description": "optional filter: flagship | open | class | free"
}
},
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"gateway": {
"type": "string"
},
"wallet": {
"type": "string"
},
"models": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"properties": {
"id": {
"type": "string"
},
"layer": {
"type": "string"
},
"kind": {
"type": "string"
},
"context_window": {
"type": "integer"
},
"input_usd_per_1m": {
"type": "string"
},
"output_usd_per_1m": {
"type": "string"
},
"per_call_usd": {
"type": "string"
},
"free": {
"type": "boolean"
}
},
"required": [
"id",
"layer",
"kind",
"context_window",
"input_usd_per_1m",
"output_usd_per_1m",
"per_call_usd",
"free"
],
"additionalProperties": false
}
}
},
"required": [
"gateway",
"models"
],
"additionalProperties": false
}🟢quote(model, prompt, system, messages, max_tokens, ...)
Get the price ceiling for a chat request without paying (the gateway's 402 quote).
Eingabe-Schema
{
"type": "object",
"properties": {
"model": {
"type": "string",
"description": "model id from list_models, or a class: auto | eco | premium | agentic"
},
"prompt": {
"type": "string",
"description": "single user message (use messages for multi-turn)"
},
"system": {
"type": "string",
"description": "optional system prompt"
},
"messages": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"properties": {
"role": {
"type": "string",
"description": "system | user | assistant"
},
"content": {
"type": "string"
}
},
"required": [
"role",
"content"
],
"additionalProperties": false
},
"description": "full conversation; overrides prompt/system"
},
"max_tokens": {
"type": "integer",
"description": "output cap; also bounds the price ceiling"
},
"temperature": {
"type": [
"null",
"number"
],
"description": "sampling temperature 0–2 (Claude ignores it)"
},
"session": {
"type": "string",
"description": "saved session id (from the session tool or a /s/<id> link): the gateway prepends its history and appends this turn"
}
},
"required": [
"model"
],
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"model": {
"type": "string"
},
"ceiling_usd": {
"type": "string"
},
"per_call_usd": {
"type": "string"
},
"input_tokens_estimate": {
"type": "integer"
},
"max_output_tokens_priced": {
"type": "integer"
},
"input_usd_per_1m": {
"type": "string"
},
"output_usd_per_1m": {
"type": "string"
},
"network": {
"type": "string"
},
"free": {
"type": "boolean"
},
"wallet_can_pay": {
"type": "boolean"
},
"paid_by_key": {
"type": "boolean",
"description": "true when a Phase API key pays: its balance and daily cap apply, max_usd_per_call does not"
},
"max_usd_per_call": {
"type": "string",
"description": "largest quote the wallet will sign (wallet mode only)"
}
},
"required": [
"model",
"ceiling_usd",
"per_call_usd",
"input_tokens_estimate",
"max_output_tokens_priced",
"input_usd_per_1m",
"output_usd_per_1m",
"network",
"free",
"wallet_can_pay"
],
"additionalProperties": false
}🟢receipt(task_id)
Fetch the public receipt of a paid request by task id (model, provider, tokens, price, settlement tx, request/response hashes, signatures) and its Merkle proof once the weekly epoch is closed.
Eingabe-Schema
{
"type": "object",
"properties": {
"task_id": {
"type": "string",
"description": "task id from chat / embed (0x…)"
}
},
"required": [
"task_id"
],
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"receipt": {
"type": "object",
"additionalProperties": true
},
"proof": {
"type": "object",
"additionalProperties": true
},
"epoch_state": {
"type": "string"
},
"url": {
"type": "string"
}
},
"required": [
"receipt",
"epoch_state",
"url"
],
"additionalProperties": false
}🟢route_explain(task_id)
Explain one Fermat request from its public receipt: the model or class it named, the complexity level, the model and provider that served it, the price, the price of the class baseline model and the saving in percent, and the providers tried.
Eingabe-Schema
{
"type": "object",
"properties": {
"task_id": {
"type": "string",
"description": "task id from chat / embed (0x…)"
}
},
"required": [
"task_id"
],
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"task_id": {
"type": "string"
},
"requested": {
"type": "string",
"description": "model or class the request named"
},
"is_class": {
"type": "boolean"
},
"level": {
"type": "string",
"description": "complexity level the classifier gave the request"
},
"routed_model": {
"type": "string"
},
"provider": {
"type": "string"
},
"price_usd": {
"type": "string"
},
"baseline_usd": {
"type": "string",
"description": "price of the same usage on the class baseline model"
},
"saved_usd": {
"type": "string"
},
"saving_percent": {
"type": "number"
},
"attempts": {
"type": "integer",
"description": "providers tried, the one that served included"
},
"failed_attempts": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"additionalProperties": true
}
},
"explanation": {
"type": "string"
},
"receipt_url": {
"type": "string"
}
},
"required": [
"task_id",
"requested",
"is_class",
"routed_model",
"provider",
"price_usd",
"explanation",
"receipt_url"
],
"additionalProperties": false
}🔴session(action, id, model, system, title)
Saved chat sessions on the Fermat gateway: create one (returns an id and a shareable /s/<id> link), read its thread, list the wallet's sessions (wallet mode only: signed with the wallet key, no transaction), or delete one. Pass the id as `session` to chat and the gateway carries the context between turns and visits.
Eingabe-Schema
{
"type": "object",
"properties": {
"action": {
"type": "string",
"description": "create | get | list | delete"
},
"id": {
"type": "string",
"description": "session id (get, delete)"
},
"model": {
"type": "string",
"description": "create: model the session starts with (informational; each chat names its own)"
},
"system": {
"type": "string",
"description": "create: system prompt kept for every turn"
},
"title": {
"type": "string",
"description": "create: title (defaults to the first message)"
}
},
"required": [
"action"
],
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"id": {
"type": "string"
},
"url": {
"type": "string"
},
"model": {
"type": "string"
},
"title": {
"type": "string"
},
"system": {
"type": "string"
},
"messages": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"additionalProperties": true
}
},
"requests": {
"type": "integer"
},
"spent_usd": {
"type": "string"
},
"expires_at": {
"type": "string"
},
"deleted": {
"type": "boolean"
},
"sessions": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"additionalProperties": true
}
}
},
"required": [
"id",
"url",
"messages",
"requests",
"spent_usd",
"expires_at"
],
"additionalProperties": false
}🟢usage(days)
Spend and savings of the Fermat API key over the last N days (1 to 90, default 7): totals, per day and per model when the gateway has the history (source usage), otherwise the key's totals (source key). Key mode only.
Eingabe-Schema
{
"type": "object",
"properties": {
"days": {
"type": "integer",
"description": "period in days, 1 to 90 (default 7)"
}
},
"additionalProperties": false
}Ausgabe-Schema
{
"type": "object",
"properties": {
"source": {
"type": "string",
"description": "usage: per-day history from /v1/key/usage; key: totals only from /v1/key"
},
"days": {
"type": "integer"
},
"requests": {
"type": "integer"
},
"spent_usd": {
"type": "string"
},
"saved_usd": {
"type": "string"
},
"spent_today_usd": {
"type": "string"
},
"available_usd": {
"type": "string"
},
"daily_cap_usd": {
"type": "string"
},
"per_day": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"additionalProperties": true
}
},
"per_model": {
"type": [
"null",
"array"
],
"items": {
"type": "object",
"additionalProperties": true
}
}
},
"required": [
"source",
"days",
"requests",
"spent_usd"
],
"additionalProperties": false
}Community
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