com.gumballtools/payload-validator
Payload Validator
com.gumballtools/payload-validator costs 3 306 tokens of context per session. It has 5 tool definitions. That is 1.7 % of a 200k window. Measured 2026-10-03.
Validate JSON, YAML, XML and CSV with exact line/column errors and silent-corruption warnings.
alive probed 2026-10-03 · HTTP 200
5tools
3.3ktokens for the tool definitions
1.7 %of a 200k context window
2.5 sto initialize
136 msto list tools
- Endpoint
- https://payload-validator.gumballtools.com/api/mcp (streamable-http)
- Host
- payload-validator.gumballtools.com
- Protocol
- 2025-11-25
- Reports itself as
- payload-validator 0.1.0
- Capabilities
- tools
- Instructions
- none
- Repository
- https://github.com/bwalvoord/gumball
- Website
- https://payload-validator.gumballtools.com
- Registry
- active, updated 2026-09-06 · registry entry
- Reachable
- 2 of the last 2 probes
Most expensive tools
| Tool | Tokens | Share of this server |
|---|---|---|
| validate_csv | 748 | 23 % |
| validate_yaml | 743 | 22 % |
| validate_json | 635 | 19 % |
| validate_xml | 615 | 19 % |
| validate_auto | 565 | 17 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Tokens |
|---|---|---|---|---|
| 2026-10-03 20:30 | alive | 2.5 s | 5 | 3.3k |
| 2026-10-03 17:48 | alive | 996 ms | 5 | 3.3k |
Badge
[](https://mcp-pulse.ulehla.dev/s/com.gumballtools/payload-validator)