FormulaSignal MCP server

• Registry namecom.formulasignal/recordverified in the MCP registry

The registry name sits under formulasignal.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

• Stateanswerschecked 2026-10-20
• Tools18
• Server calls itselfformulasignal
• Server version1.1.0
• Protocol version2025-06-18

On 2026-10-20 the server answered initialize and tools/list without a sign-in. First answer in 78 ms.

• Whether its tools do the product's job has not been judged yet.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

• INITE MCP score76 of 100answers 100 · definitions 100 · context 71 · connects 100 · lowered by the warning signs below
• Answered100% of days9 of 9 daily checks
• Median first answer917 ms
• Space in an agent's context≈ 8,855 tokensthe definitions of all its tools (18), which an agent carries on every turn
• Tool definitionsA · 100 of 100
• Typed results18 of 18 toolsdeclared outputSchema: results come typed, read once

• Every tool passes all six checks.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

• record.search

  Answer one specific, bounded question from FormulaSignal's covered pre-workout Record. When to use: Use for a single natural-language question about a covered product: what it declares now, whether it changed, what it costs per serving…

• products.resolve

  Resolve a brand, product name, or alias to one canonical covered product. When to use: Call this first whenever you hold a user-supplied product name and need the canonical product_id every other capability takes. What it cannot provide…

• products.get

  Return the controlled current Record for one covered product: identity, serving configuration, declared ingredients, captured price context, and freshness. When to use: Use when you need what a product declares right now, with the dates…

• products.history

  Return the controlled historical timeline for one covered product, with each state classified by what it can actually support. When to use: Use to find out whether a product has changed, how deep the recoverable history is, and which…

• signals.explain

  Explain one approved FormulaSignal Signal: a confirmed, reviewed change between two comparable product states. When to use: Use when a product record or history response named a signal_id and you need the before state, the after state…

• signals.list

  Return approved FormulaSignal Signals in release order, newest first, for incremental polling. When to use: Use to keep a system in step with the Record. Pass `since` with the release date you last saw, or follow `next_cursor`, and filter…

• products.compare

  Compare two or three covered products on consistent FormulaSignal criteria. When to use: Use when a user asks how covered products differ on formula, serving economics, stimulant load, or record depth. What it cannot provide: It returns…

• products.serving_economics

  Return the captured commercial facts and the deterministic price arithmetic for one covered product. When to use: Use for package price, price basis, serving count, price per serving, and the date each was observed. What it cannot…

• ingredients.research

  Return the dose range used in the selected evidence set for named ingredients, with the citation and its limitations. When to use: Use to place a declared amount against published work. Pass ingredient ids, or a product_id to read the…

• ingredients.regulatory

  Return regulatory records and documented cautions for named ingredients, each carrying the class of record it actually is. When to use: Use when you need to know what filings, advisories, label warnings, interactions, or enforcement…

• signals.snapshot

  Return a bounded summary of approved Signals and coverage state across the covered pre-workout set for a date window. When to use: Use for 'what changed in the category recently'. Pass from and to dates; the window is capped and the page…

• ledger.list

  List the published Category Ledger editions: period, status, data-as-of date and the count released in each. When to use: Call this first to find which edition covers a period, then fetch that edition by id. What it cannot provide: It…

• ledger.get

  Return one Category Ledger edition: the executive summary, confirmed changes released in the period, category benchmarks with their cohorts, serving economics, the product comparison, and the limitations. When to use: Use when an agent…

• watchlist.list

  Return the watchlist of the one Founding Pro account this key is bound to, with each product's monitoring state. When to use: Use to answer what a person is watching, when each product was last read, when the next check is due, and…

• watchlist.add

  Add one covered product to the bound account's watchlist. When to use: Use when a person asks to start watching a product. Resolve the product first if you were given a name rather than an id. What it cannot provide: It cannot add a…

• watchlist.remove

  Remove one product from the bound account's watchlist. When to use: Use when a person asks to stop watching a product. Future alerts stop; everything already delivered stays. What it cannot provide: It cannot delete an account, cancel a…

• watchlist.receipt

  Return the monitoring receipt for one period: valid checks, attempts that returned nothing, recoveries, and confirmed Signals. When to use: Use to answer whether anything a person watches changed in a period, and what monitoring did in…

• record.version

  Return the public Record version, the methodology version, the supported category, coverage counts, and source freshness. When to use: Call this to state which version of FormulaSignal intelligence an answer came from, or to detect that…