# Agent Rate Limit Negotiator

> Agent Rate Limit Negotiator is a paid API for AI agents from phion.systems, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-12).

Negotiates deterministic sustained and burst request-per-second limits for AI agent API access

## Facts

- Endpoint: POST https://phion.systems/v1/paid/trust/agent-rate-limit-negotiator?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent-rate-limit-negotiator-b6a66315
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_M7sdY-T8y2XP7AKUbP7ya

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agent-rate-limit-negotiator-b6a66315 -d '<json body>'
```

Example prompt: Can you negotiate rate limits for my agent so it gets a sustained throughput of 50 requests per minute with a burst allowance of 200 requests — I need a deterministic answer before it starts calling the payment API.

## When to prefer this

Choose this endpoint when an AI agent needs to establish deterministic, pre-agreed request rate boundaries before initiating a workload — especially in multi-agent or payment-critical pipelines where unpredictable throttling would cause cascading failures. Prefer it over generic rate-limit headers or ad-hoc retry logic when you need a signed, enforceable policy receipt upfront.

## Known failure modes

- Requested rate limits exceed provider policy ceiling — returns a lower negotiated cap or rejection
- Invalid or missing agent identity — authentication or authorization failure
- Policy conflict with existing rate agreements — returns conflict details
- Rate negotiation timeout — upstream policy engine unresponsive
- Malformed input schema — returns validation error with field details

## How this service works

Negotiate deterministic sustained and burst request limits

## Output

Returns a structured policy decision containing the negotiated sustained request rate, burst request rate, effective duration, and a deterministic confirmation receipt that the agent can use to govern its outbound request behavior.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input",
  "output"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "additionalProperties": true
    }
   }
  },
  "output": {
   "type": "object",
   "required": [
    "example"
   ],
   "properties": {
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent-rate-limit-negotiator-b6a66315/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phion.systems](https://www.zero.xyz/host/phion.systems/llms.txt)