io.github.Invaro/opentax
opentax
io.github.Invaro/opentax costs 175 279 tokens of context per session. It has 15 tool definitions. That is 87.6 % of a 200k window. Measured 2026-10-03.
Verifiable US tax oracle for AI agents: cited, machine-checkable federal and state tax computation
alive probed 2026-10-03 · HTTP 200
15tools
175ktokens for the tool definitions
87.6 %of a 200k context window
495 msto initialize
467 msto list tools
- Endpoint
- https://opentax.invaro.ai/mcp (streamable-http)
- Host
- opentax.invaro.ai
- Protocol
- 2025-11-25
- Reports itself as
- opentax 0.5.0
- Capabilities
- tools
- Instructions
- none
- Registry
- active, updated 2026-07-23 · registry entry
- Reachable
- 2 of the last 2 probes
Most expensive tools
| Tool | Tokens | Share of this server |
|---|---|---|
| compute_state_return | 61 337 | 35 % |
| compute_return | 53 389 | 30 % |
| calculate_tax | 53 383 | 30 % |
| calculate_business_tax | 4 109 | 2 % |
| determine_dependent | 1 010 | 1 % |
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 20:35 | alive | 495 ms | 15 | 175k |
| 2026-10-03 17:52 | alive | 714 ms | 15 | 175k |
Badge
[](https://mcp-pulse.ulehla.dev/s/io.github.Invaro/opentax)