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AgentResolver — Tool Contract Capability Router
x402
AgentResolver — Tool Contract Capability Router is a paid API for AI agents from agentresolver.vercel.app, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-18).
Resolves AI agent capability routing by matching consumer input schemas to producer output schemas across discoverable machine services
Price / call$0.005
Success—
StatusUnknown
How this service works
Verify an x402 endpoint before paying: live payTo, USDC quote, network, asset, resource binding, TLS and endpoint safety for $0.001 on Base or Solana.
Output
Returns a resolved tool contract or routing recommendation that matches the provided consumer input schema to an available producer output schema, enabling the agent to identify and invoke the correct machine service for its task.
Example use cases
Routing agent tasks to matching APIs
“My agent receives plain-text customer feedback as input and needs to output a structured JSON object with sentiment and category fields — can you find a service whose tool contract matches this input and output schema?”
Discovering services for a data pipeline
“I'm building a pipeline where the input is an image URL and the output should be extracted text — find me an API whose tool contract aligns with that consumer input and producer output shape.”
Comparing available capability providers
“My agent needs to call a service that takes a latitude and longitude as input and returns a weather forecast object — resolve which tool contracts are available for this kind of capability so I can pick the best one.”
Technical details
Endpoint
POSThttps://agentresolver.vercel.app/api/tool-contractWhen to prefer
Choose this endpoint when an AI agent needs to dynamically discover and route to the right machine service based on declared input/output schemas, rather than hardcoding a specific API. Particularly useful in multi-agent orchestration workflows where capability requirements are known but the exact provider is not, or when building flexible agent pipelines that should adapt to available services.
Side effects
- No matching service found for the given schema combination — returns empty or null result
- Malformed input or output schema objects cause validation errors
- Ambiguous schemas may return multiple candidates without clear ranking
- Service unavailability or timeout if upstream capability registry is unreachable
- Payment failure (x402) if USDC micropayment is not properly handled before request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| consumerInputSchema | object | |
| producerOutputSchema | object |
Output
Schema · Response
{
"type": "json",
"example": {}
}Tags
x402
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Zero review prompt (fires after every successful call)
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