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match-key
x402
match-key is a paid API for AI agents from payai.agentstools.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-15).
Computes a deterministic similarity key for a name or address string to enable cheap client-side record blocking and deduplication.
Price / call$0.005
Success—
StatusUnknown
How this service works
Compute a deterministic similarity key for a name or address: the cheap first step of client-side blocking and deduplication. Records that share a key are duplicate candidates to confirm. Returns the key, the normalized form and the tokens. Indicators, not authoritative identity resolution.
Output
Returns a deterministic similarity key string, a normalized form of the input, and a list of tokens derived from the input. These are indicators for duplicate candidacy, not authoritative identity resolution — records sharing the same key should be confirmed as duplicates through further comparison.
Example use cases
Deduplicating a CRM company list
“I have a CRM full of company records and I suspect there are duplicates with slightly different spellings — can you generate a similarity key for 'General Electric Co.' as a company so I can group it with potential duplicates?”
Address blocking for data merge
“I'm merging two customer datasets and need to identify duplicate addresses before doing a full comparison — can you compute a match key for '123 Main Street, Suite 4B' as an address type?”
Person name deduplication pipeline
“Before I run expensive fuzzy matching, I want a cheap blocking key for the person name 'Jonathan R. Smith' so I can bucket duplicate candidates — can you generate that match key?”
Technical details
Endpoint
GEThttps://payai.agentstools.dev/match/keyWhen to prefer
Choose this endpoint when you need a fast, cheap, deterministic first-pass blocking step before expensive fuzzy matching or full entity resolution. It is ideal for client-side deduplication pipelines where you want to group candidate duplicate records by a shared key without incurring the cost of pairwise comparison across all records. Prefer it over full entity resolution APIs when you only need candidate grouping, not authoritative identity decisions.
Side effects
- Missing required 'value' query parameter returns an error
- Invalid entity type (not one of person/company/address/product/org) may default to 'company' or return a validation error
- Empty string input may return an empty or trivial key
- Non-GET HTTP method returns method-not-allowed
- Payment failure (402) blocks the request if USDC payment is not supplied
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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