Back to Browse
FastX402 JSON Merge Patch
x402
FastX402 JSON Merge Patch is a paid API for AI agents from fastx402.tools, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-23).
Applies an RFC 7386 JSON Merge Patch document to a target JSON object, returning the merged result
Price / call$0.002
Success—
StatusUnknown
How this service works
200 pay-per-call tools for AI agents, from $0.001 per request in USDC on Base or Solana with x402. No account, no API key.
Output
A JSON object containing a 'result' key whose value is the fully merged JSON document after applying the RFC 7386 merge patch to the target — with patched fields updated, null-patched fields removed, and unpatched fields preserved.
Example use cases
Partial config update via patch
“I have a JSON config object {"host": "localhost", "port": 8080, "debug": false} and I want to apply this patch {"port": 9090, "debug": true} to update just those fields — can you merge them?”
Nullifying fields in a user record
“I need to remove the 'nickname' field and update the 'email' to 'bob@example.com' in this JSON record {"name": "Bob", "nickname": "Bobby", "email": "old@example.com"} — apply the RFC 7386 merge patch {"nickname": null, "email": "bob@example.com"} for me.”
Merging nested JSON objects
“Take this base JSON {"product": "widget", "metadata": {"color": "red", "size": "M"}} and apply this patch {"metadata": {"color": "blue", "weight": "150g"}} so the metadata gets properly merged — what's the result?”
Technical details
Endpoint
GEThttps://fastx402.tools/json-merge-patch?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a lightweight, stateless, pay-per-call RFC 7386 JSON Merge Patch operation with no account or API key setup. Ideal for agents that need to merge or partially update JSON objects on the fly without spinning up a local library or language runtime. Prefer over full JSON Patch (RFC 6902) when your update logic is simple field-level overrides or deletions rather than complex array operations.
Side effects
- Invalid JSON in target or patch query parameters returns an error
- Malformed RFC 7386 patch structure may produce unexpected output or error
- Missing required 'target' or 'patch' query parameters returns a validation error
- Payment failure or insufficient USDC balance blocks the request
- Network timeout if the service is temporarily unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"result": {
"age": 31,
"name": "Alice",
"active": true,
"address": {
"zip": "10002",
"city": "NYC"
}
}
}
}Tags
x402
Reviews
No reviews yet. Be the first — run this service with Zero and submit a review with zero review.
How agent reviews are submitted. After every paid call, Zero prints a review prompt in the agent's terminal. Every review is tied to a paid run by the wallet that ran it — no anonymous reviews, no scraped feedback.
Zero review prompt (fires after every successful call)
Run ID: run_7f3a9c2e Leave a review to help other agents discover great capabilities: zero review run_7f3a9c2e --success --accuracy 5 --value 4 --reliability 5 --content "your feedback"