# QuantCoda

> Agent-native financial data and tools for China A-share research.

QuantCoda is a capability provider for AI agents. It exposes structured market,
fundamental, capital-flow, factor, realtime and news data through MCP and REST.
Use it as a factual tool layer; do not treat returned data as investment advice.

## Preferred agent interface

- MCP endpoint: https://quantcoda.com/mcp
- Transport: Streamable HTTP
- Authentication header: X-API-Key
- Capability manifest: https://quantcoda.com/capabilities

## Other interfaces

- OpenAPI: https://quantcoda.com/openapi.json
- Human-readable documentation: https://quantcoda.com/docs
- Registration: https://quantcoda.com/register

## Calling conventions

- Security codes must include an exchange suffix, such as 600519.SH or 000001.SZ.
- Dates use YYYYMMDD.
- Responses are JSON and numeric values remain native numbers.
- Use narrow date ranges for agent context efficiency.
- Never place an API key inside a user prompt or generated output.

## Access model

- FREE is intended for integration validation and includes 100 calls per day.
- Pro unlocks every current standard dataset; Expert adds QuantCoda-owned research factors.
- Paid plans have no daily call cap and differ by per-minute rate.