Fermat

Install

Works with Claude Code, VS Code, Cursor, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install connector/ai-phase-xyz-gateway

About

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this server can do and what it asks for, from its tool list and install config. Checked Oct 25, 2026.

Tools

7 read · 0 write · 4 delete

Secrets

3 (API keys, tokens or passwords)

Install scripts

Nothing to install (hosted)

Runs as

Hosted (remote endpoint)

Tools (11)

As the server listed them on Oct 25, 2026. Descriptions are the server’s own words; hidden characters are shown as [U+…].

• chatChat with a model (spends credit)can change or delete data

  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.

• compareCompare models on one prompt (spends credit)can change or delete data

  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.

• docsFermat documentationread-only

  Fermat documentation in short: connect, pricing (with the live price table), savings, mcp, byok, data, receipts, limits.

• embedCompute embeddings (spends credit)can change or delete data

  Compute embeddings on the Fermat gateway (paid from the Phase API key or the wallet).

• keyBalance and limits of the keyread-only

  Balance, daily cap and spend of the Phase API key this server pays with (key mode).

• list_modelsList models and pricesread-only

  List models of the Fermat gateway with prices (USD per 1M tokens, fee per call) and layer (flagship | open | class | free).

• quotePrice ceiling of a requestread-only

  Get the price ceiling for a chat request without paying (the gateway's 402 quote).

• receiptRead a public receiptread-only

  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.

• route_explainWhy this model and what it savedread-only

  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.

• sessionSaved chat sessionscan change or delete data

  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.

• usageSpend and savings of the keyread-only

  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.

Signals

Last release

Oct 22, 2026 (6 days ago)

Details

Registry name

xyz.phase.ai/gateway

Version

0.4.0

Auth

Bearer token, API key

License

License unknown

Website

fermat.ai.phase.xyz

First seen

Oct 24, 2026

Last checked

Oct 25, 2026

Source

Official MCP Registry