# PtData (ptdata.io)

Serves historical financials and index membership as they were publicly known on each past date, for backtesting without restatements or survivorship bias.

- Atlas card: https://inite.ai/en/atlas/ptdata.io
- Site: https://ptdata.io
- For: Researchers and developers backtesting trading strategies who need point-in-time financial data without restated numbers or survivorship bias.
- Categories: finance
- Use not measured/100 · alive 100/100

## Used for

- Query fiscal figures as they were known on a past date
- Rebuild historical index membership without survivorship bias
- Give AI agents point-in-time financial data via MCP

## Price

- from 49 USD/month, free plan (read 2026-10-30 on https://ptdata.io/pricing)

## For developers

- OpenAPI: https://api.ptdata.io/openapi.json (4 paths)
- API docs: https://api.ptdata.io/docs
- MCP server: io.ptdata/ptdata (namespace; open on 2026-10-30, 4 tools)
- Read 2026-10-30

## MCP server, measured daily

Server: https://api.ptdata.io/mcp, checked every day since 2026-10-30 (3 checks).

- Answered: measuring, 3 daily checks so far
- Median first answer: 212 ms
- Sign-in: none
- Context its tool definitions take: about 553 tokens (4 tools)
- Tool definitions: B, 83/100
- Failing "params_described": 4 of 4 tools
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-30

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Source: INITE Atlas, https://inite.ai/en/atlas/ptdata.io. JSON: https://inite.ai/api/atlas/ptdata.io. MCP: https://inite.ai/api/mcp (atlas_lookup).