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Tool Compatibility Checker (modell.halowerk.com)
x402
Tool Compatibility Checker (modell.halowerk.com) is a paid API for AI agents from modell.halowerk.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-13).
Compares a producer tool's output schema against a consumer tool's input schema to determine whether they can be chained, reporting exact matches, synonym-based renames, and missing required fields.
Price / call$0.002
Success—
StatusUnknown
How this service works
Compares a producer output schema against a consumer input schema and reports whether the two can be chained. Every required field of the consumer is looked for in the producer: exact name matches first, then well-known synonyms (url/uri/link, id/key/ref, created_at/timestamp and so on), which are reported as renames needing a mapping rather than as clean matches.
Output
A structured compatibility report indicating whether the producer and consumer schemas can be chained. Includes a list of exact field matches, synonym-based matches flagged as renames (e.g. url↔uri, id↔key), and any required consumer fields that are absent from the producer output, along with an overall chainability verdict.
Example use cases
Pipeline step compatibility check
“I'm building an agent pipeline where one tool fetches a web page and returns a JSON response, and the next tool expects structured input. Here are both schemas — can you check if they're compatible and tell me which fields match, which need renaming, and which required fields are missing?”
Synonym-aware rename detection
“I have a producer that outputs a field called 'uri' and my consumer expects 'url' — run a compatibility check on these two schemas and tell me whether that counts as a clean match, a rename, or a missing field.”
Agent tool chain validation before deployment
“Before I wire up these two agent tools in production, check their schemas for me: here's the output schema of the first tool and the input schema of the second — I need to know if they can be chained directly or if I need a mapping step in between.”
Technical details
Endpoint
POSThttps://modell.halowerk.com/v1/tool-compatWhen to prefer
Use this endpoint when building or validating multi-step agentic pipelines and you need to confirm that one tool's output can feed directly into another tool's input. It is especially valuable when field names may differ by synonym (url vs uri, id vs key) and you want automated rename detection rather than manual inspection. Prefer this over generic JSON diff tools because it understands agentic tool-chaining semantics and required-field coverage.
Side effects
- Invalid or malformed JSON Schema provided for producer or consumer — returns schema parse error
- Producer or consumer schema missing entirely — returns 400 bad request
- Schema with circular references may cause unexpected behavior
- Very large or deeply nested schemas may increase latency
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| use_synonyms | boolean | Accept well-known renames as a match. |
| consumer_name | string | Name of the consuming tool, for the report. |
| producer_name | string | Name of the producing tool, for the report. |
| consumer_schema | object | Input schema of the second tool. |
| producer_schema | object | Output schema of the first tool. |
Tags
x402
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