Perplexity Agent provider fails with `unknown field "store"` on `/v1/responses`

[asakura42]

Description

The built-in perplexity-agent provider is currently failing on Opencode 1.17.4.

Any request to a Perplexity Agent model fails with:

AI_APICallError: invalid request body: json: unknown field "store"

I verified that the Perplexity Agent /v1/responses endpoint works if OpenAI-specific fields are omitted, but fails when fields such as store, temperature, include, or tool_choice are present.

The built-in provider appears to use the OpenAI AI SDK adapter:

provider: perplexity-agent
api.package: @ai-sdk/openai
api.url: https://api.perplexity.ai/v1

That adapter sends OpenAI Responses API fields that Perplexity Agent API now rejects.

I have now local workaround only: a custom plugin that strips unsupported fields from requests to https://api.perplexity.ai/v1/responses makes the provider work again, but this should be fixed upstream:

const unsupportedFields = ["store", "temperature", "include", "tool_choice"]

function sanitizeBody(body: unknown) {
  if (typeof body !== "string") return body

  try {
    const json = JSON.parse(body)
    for (const field of unsupportedFields) delete json[field]
    return JSON.stringify(json)
  } catch {
    return body
  }
}

export default async () => {
  const fetchKey = Symbol.for("opencode.perplexityAgentSanitizeFetch")
  const global = globalThis as typeof globalThis & { [fetchKey]?: true }

  if (!global[fetchKey]) {
    const originalFetch = globalThis.fetch.bind(globalThis)
    globalThis.fetch = async (input, init) => {
      const url = typeof input === "string" || input instanceof URL ? input.toString() : input.url
      if (!url.startsWith("https://api.perplexity.ai/v1/responses")) {
        return originalFetch(input, init)
      }

      if (init?.body) {
        return originalFetch(input, { ...init, body: sanitizeBody(init.body) as BodyInit })
      }

      if (input instanceof Request) {
        const body = sanitizeBody(await input.clone().text())
        return originalFetch(new Request(input, { body: body as BodyInit }), init)
      }

      return originalFetch(input, init)
    }
    global[fetchKey] = true
  }

  return {}
}

Plugins

None relevant. I also reproduced this with plugins disabled / without my local workaround.

OpenCode version

1.17.4

Steps to reproduce

1. Configure/authenticate the built-in perplexity-agent provider.
2. Run:

opencode run "Reply with exactly: ok" \
  --model "perplexity-agent/anthropic/claude-opus-4-6" \
  --print-logs \
  --log-level DEBUG

3. Observe the failure:
   AI_APICallError: invalid request body: json: unknown field "store"
   Additional direct API check:
   This succeeds:

curl -sS -X POST "https://api.perplexity.ai/v1/responses" \
  -H "Authorization: Bearer $PERPLEXITY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-opus-4-6",
    "input": [
      {
        "role": "user",
        "content": [
          {
            "type": "input_text",
            "text": "Reply exactly: ok"
          }
        ]
      }
    ],
    "stream": false,
    "max_output_tokens": 16
  }'

This fails:

curl -sS -X POST "https://api.perplexity.ai/v1/responses" \
  -H "Authorization: Bearer $PERPLEXITY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "anthropic/claude-opus-4-6",
    "input": [
      {
        "role": "user",
        "content": [
          {
            "type": "input_text",
            "text": "Reply exactly: ok"
          }
        ]
      }
    ],
    "stream": false,
    "max_output_tokens": 16,
    "store": false
  }'

Response:

{
  "error": {
    "message": "invalid request body: json: unknown field \"store\"",
    "type": "invalid_request",
    "code": 400,
    "param": "store"
  }
}

I also observed the same class of error for:
temperature
include
tool_choice

Expected behavior: perplexity-agent should not send OpenAI-specific Responses fields that Perplexity Agent API rejects.

Screenshot and/or share link

N/A

Operating System

Arch

Terminal

Konsole

[samuelsennev]

Same here...