Up-to-date documentation for every component

Authoritative component documents, grounded for agents

CircuitContext gives agents and reviewers reliable access to datasheets, reference manuals, errata, pinouts, and timing diagrams, answered with structured evidence and citations, never just prose.

Index component document Connect via MCP

Evidence, not prose

For this component and question, what does the document prove?

Every answer preserves enough detail for another agent or human reviewer to reopen the exact source page, table, row, cell, or figure. Answer cards are regenerated from the current evidence instead of being treated as permanent conclusions.

Citations validated against the returned evidence set
Table, row, cell, and figure locators on every claim
Coverage decisions with explicit unresolved gaps

POST/v1/query

coverage: Strong

Question

What is the absolute maximum VDD and the recommended VIN range?

Texas Instruments · TPS62840DLCR·3 evidence matches

Answer card · citations validated

The absolute maximum VIN is 6.5 V (referenced to GND). Recommended operating input voltage VIN is 1.8 V to 6.5 V. Exceeding 6.5 V on VIN may cause permanent damage. [chunk:tbl-6.1][chunk:tbl-6.3]

Electrical limits: StrongRecommended operating: StrongThermal: Partial

Evidence

6.1 Absolute Maximum Ratings

0.982

VIN, EN, MODE/SYNC … min −0.3 V … max 6.5 V … Unit V. Operating junction temperature −40 to 150 °C.

p6 · table 6-1 · row "VIN" · cell [max]

6.3 Recommended Operating Conditions

0.948

Input voltage VIN … min 1.8 … max 6.5 … Unit V.

p7 · table 6-3 · rows 1–2

9.4 Typical Application

0.871

Application schematic showing VIN decoupling (10 µF) and FB divider network.

p18 · region [diagram] · bbox 0.12,0.34,0.88,0.79

answered in 741ms612ms answer card

Core invariants

Guarantees that make retrieval trustworthy

CircuitContext is not a board-review product. It supplies grounded document context that downstream tools can rely on.

Identity before retrieval

Every query resolves to a canonical component identity first. We select eligible document IDs, then score chunks inside that set.

Authority before similarity

Primary datasheets, reference manuals, and errata outrank mirrors and reference designs. Similarity never promotes a weak source.

Shared document library

Each approved request adds a reusable public component document that the whole local workspace can query.

PDFs become searchable

Datasheets and manuals are turned into page, table, figure, and snippet references that are easy to inspect.

Coverage is a response

Queries tell you whether the evidence is complete, partial, still being indexed, or missing source material.

Answer cards are validated

Model answers must cite returned snippets, tables, and figures. We validate every citation ID before returning a response.

Workflow

From source document to cited answer

Add a source

Submit a URL, PDF, or CSV of public component documents

Ask a question

Use a component identity and the design question you need answered

Review evidence

Open the matching document, page, table, or figure behind the answer

Connect agents

Use REST, MCP, or the TypeScript client from the same account

Track coverage

See which questions are answered and which need more source material

Indexed corpus

Documents ready to query

Browse all

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184 pages96 tables41 regions

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STM32H742/743 Reference Manual (RM0433)

STM32H743ZIT6 · STMicroelectronics

3329 pages1284 tables210 regions

PowerRev. C

TPS62840 Step-Down Converter — Datasheet

TPS62840DLCR · Texas Instruments

41 pages22 tables18 regions

InterfaceSLVUBH2E

TPS65987D USB-PD Controller — Errata & Revision History

TPS65987DDHRSHR · Texas Instruments

28 pages11 tables4 regions

RF / Wirelessv1.3

ESP32-S3 Hardware Design Guidelines

ESP32-S3-WROOM-1 · Espressif Systems

62 pages19 tables33 regions

RF / Wirelessv1.7

ESP32-C3 Hardware Design Guidelines

ESP32-C3-MINI-1 · Espressif Systems

58 pages17 tables29 regions

Built for agents

Connect over MCP or REST

Drop CircuitContext into any agent runtime. Tool results return structured content with JSON schemas and resource links for page and region images — no parsing large markdown blobs to find citations.

claude_desktop_config.json

{
  "mcpServers": {
    "circuitcontext": {
      "url": "http://127.0.0.1:3010/mcp",
      "headers": {
        "Authorization": "Bearer cc_local_..."
      }
    }
  }
}

query.ts

import { CircuitContext } from "@circuitcontext/client"

const cc = new CircuitContext({
  baseUrl: "http://127.0.0.1:3010",
  apiKey: process.env.CC_API_KEY,
})

const answer = await cc.queryComponentFacts({
  mpn: "TPS62840",
  question: "absolute maximum VIN and recommended range",
  mode: "answer_card"
})

console.log(answer.coverageStatus, answer.evidence.length)

Read the integration docs