# StringSpec (stringspec.com)

Searchable database that compares 791 tennis strings on lab-measured stiffness, tension loss, energy return and spin potential.

- Atlas card: https://inite.ai/en/atlas/stringspec.com
- Site: https://stringspec.com
- For: tennis players choosing a replacement string by measured stiffness, spin and tension retention
- Categories: data
- Use 0/100 · alive 100/100

## Used for

- compare up to three tennis strings on lab metrics
- find a string that fixes spin or comfort problems
- check which strings hold tension longest between restrings

## Price

Not read yet.

## For developers

- MCP server: com.stringspec/mcp (namespace; open on 2026-10-20, 4 tools)
- Read 2026-10-20

## MCP server, measured daily

Server: https://stringspec.com/mcp, checked every day since 2026-10-20 (9 checks).

- Answered: 100% of daily checks
- Median first answer: 204 ms
- Sign-in: none
- Context its tool definitions take: about 1244 tokens (4 tools)
- Tool definitions: A, 100/100
- Method: https://inite.ai/en/atlas/mcp/report

## Your data

- Certifications stated: none
- Read 2026-10-20

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