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Agent Weather Model Identity Lookup
x402
Agent Weather Model Identity Lookup is a paid API for AI agents from api.agentweather.io, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-19).
Retrieves canonical identity metadata for a specific AI model from models.dev, including model ID mapping, knowledge cutoff, context/output limits, and recorded change events.
Price / call$0.003
Success—
StatusUnknown
How this service works
Model identity readings for one models.dev entry (GET /v1/models/identity/{provider}/{model}, ids as models.dev keys them, e.g. /v1/models/identity/anthropic/claude-sonnet-4-5): the id models.dev maps it to (canonical_model_id), knowledge cutoff, context and output limits, and recorded change event…
Output
Returns a structured model identity reading including: the canonical_model_id as mapped by models.dev, knowledge cutoff date, context window and output token limits, a timestamp of when the reading was observed, recorded change events for the model, attribution metadata, and optional inferred fields and notes.
Example use cases
Resolve model identity before API call
“Before I send a request to Anthropic's claude-sonnet-4-5, can you look up its canonical model ID and context window limit from the Agent Weather model identity endpoint so I know exactly what I'm working with?”
Check knowledge cutoff for model comparison
“I need to compare knowledge cutoffs for a few models — start by fetching the identity reading for openai's gpt-4o from Agent Weather so I can see when its training data ends.”
Audit recent model spec changes
“Has the identity or spec for Anthropic's claude-sonnet-4-5 changed recently? Pull the Agent Weather model identity record and show me any recorded change events.”
Technical details
Endpoint
GEThttps://api.agentweather.io/v1/models/identity/:provider/:model?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need structured, normalized identity metadata for a specific AI model — especially canonical model ID resolution, knowledge cutoff, and token limits — sourced from models.dev. Prefer it over scraping provider documentation directly when you want a single cheap ($0.003 USDC) machine-readable snapshot with change history. Use it when building agent pipelines that need to validate or route based on model capabilities before making provider API calls.
Side effects
- Unknown provider or model key returns 404 or empty result
- Stale data if models.dev has not been recently crawled
- Payment failure (x402) if USDC balance is insufficient or payment header is missing
- Malformed path parameters (e.g. incorrect provider/model key format) return validation error
- Model exists on provider but not yet indexed in models.dev returns no data
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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