api.getplexa.com

Name: api.getplexa.com
Price: 0.02 USDC
Availability: InStock

Plexa is an x402-native, pay-per-call API on Base, Polygon and Arbitrum giving AI trading agents decision-grade execution economics: executable quotes and pre-trade safety verdicts.

SearchLiveeip155:8453Exactvia cdp

https://api.getplexa.com/v1/quote

Calls · 30d

73↑ 35%

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.

$7.56

Verified settled volume

210 settlements proven x402 by their on-chain EIP-3009 marker.

$0.020

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-09-21 17:41Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xd993eAfBA87cFfa2ca2CFF5A56EF89034575A7ef

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.02USDC≈ $0.02 USD

on Base · exact scheme

Pay 0.02 USDC on Base to 0xd993…5A7ef. The signed payment is good for 5 minutes.

Paid to: 0xd993…5A7ef
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 20000 smallest units

20000units

on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xd993…5A7ef
Token contract: 0x3c49…c3359
Payment window: 5 minutes

20000units

on Arbitrum · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 0xd993…5A7ef
Token contract: 0xaf88…e5831
Payment window: 5 minutes

20000units

on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: D6FqEy…kVLor
Token contract: EPjFWd…TDt1v
Payment window: 5 minutes

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xd993eAfBA87cFfa2ca2CFF5A56EF89034575A7ef",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xd993eAfBA87cFfa2ca2CFF5A56EF89034575A7ef",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xd993eAfBA87cFfa2ca2CFF5A56EF89034575A7ef",
    "amount": "20000",
    "scheme": "exact",
    "network": "eip155:42161",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
    },
    "payTo": "D6FqEyoFvkgGy4PpJjckHc3xRXhzL6mWQ25gz4rkVLor",
    "amount": "20000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "chain": "base",
          "sizeUSD": "5000",
          "tokenIn": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
          "tokenOut": "0x4200000000000000000000000000000000000006"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "ts": 1786022127490,
          "route": {
            "dex": "univ3",
            "legs": [
              {
                "dex": "univ3",
                "pool": "0xd0b53D9277642d899DF5C87A3966A349A798F224",
                "venue": "uniswap-v3",
                "feePips": 500
              }
            ]
          },
          "confidence": "high",
          "validUntil": 1786022130490,
          "depthAtSize": 2.6386839328112384,
          "priceImpactBps": 0,
          "executablePrice": 0.0005277367865622476,
          "worstCaseSlippageBps": 0
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "anyOf": [
                {
                  "required": [
                    "sizeIn"
                  ]
                },
                {
                  "required": [
                    "sizeUSD"
                  ]
                }
              ],
              "examples": [
                {
                  "chain": "base",
                  "sizeUSD": "5000",
                  "tokenIn": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                  "tokenOut": "0x4200000000000000000000000000000000000006"
                }
              ],
              "required": [
                "tokenIn",
                "tokenOut"
              ],
              "properties": {
                "chain": {
                  "enum": [
                    "base",
                    "polygon",
                    "matic",
                    "arbitrum",
                    "arbitrum-one",
                    "arb",
                    "eip155:8453",
                    "eip155:137",
                    "eip155:42161"
                  ],
                  "type": "string",
                  "description": "Optional, default \"base\". One of: base | polygon | matic | arbitrum | arbitrum-one | arb | eip155:8453 | eip155:137 | eip155:42161 — case-sensitive (see `enum`). This is the chain the QUOTE is computed on; the networks you may PAY on (including Solana) are a separate list in `accepts[]`."
                },
                "sizeIn": {
                  "type": "string",
                  "pattern": "^(?:0\\.\\d*[1-9]\\d*|[1-9]\\d*(?:\\.\\d+)?)$",
                  "maxLength": 78,
                  "description": "Trade size as a human amount of tokenIn, e.g. \"1.5\" for 1.5 WETH. A STRING, not a number. At least one of sizeIn / sizeUSD is required; if BOTH are sent, sizeUSD wins and sizeIn is ignored."
                },
                "sizeUSD": {
                  "type": "string",
                  "pattern": "^(?:0\\.\\d*[1-9]\\d*|[1-9]\\d*(?:\\.\\d+)?)$",
                  "maxLength": 78,
                  "description": "Trade size as a USD notional, e.g. \"5000\". A STRING, not a number; positive, no thousands separator (\"5,000\" is rejected) and no exponent (\"5e3\" is rejected) — see `pattern`. At least one of sizeIn / sizeUSD is required; if BOTH are sent, sizeUSD wins."
                },
                "tokenIn": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{40}$",
                  "description": "ERC-20 being SOLD. 0x + 40 hex (see `pattern`) — a symbol like \"USDC\" is rejected with 400."
                },
                "tokenOut": {
                  "type": "string",
                  "pattern": "^0x[0-9a-fA-F]{40}$",
                  "description": "ERC-20 being BOUGHT. 0x + 40 hex (see `pattern`) — a symbol like \"WETH\" is rejected with 400."
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "route": {
                  "type": "object",
                  "description": "Per-leg execution route (dex / pool / fee tier)"
                },
                "confidence": {
                  "type": "string",
                  "description": "Engine confidence: high | medium | low"
                },
                "depthAtSize": {
                  "type": "number",
                  "description": "Realizable output at the requested size, in human units of tokenOut (NOT USD)"
                },
                "priceImpactBps": {
                  "type": [
                    "number",
                    "null"
                  ],
                  "description": "Price impact at this size, in basis points. Null when no defensible mid exists (P16) — impact is derived from the mid."
                },
                "executablePrice": {
                  "type": "number",
                  "description": "REALIZABLE fill price for the full requested size — the price the swap actually executes at after price impact, NOT a mid/spot price feed. This is Plexa's core difference from a price oracle. Units: tokenOut PER tokenIn (for USDC→WETH it is WETH per 1 USDC, a small number — not the reciprocal)."
                },
                "worstCaseSlippageBps": {
                  "type": [
                    "number",
                    "null"
                  ],
                  "description": "Worst-case slippage, in basis points. Null when no defensible mid exists (P16)."
                }
              }
            }
          }
        }
      }
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_g9x4yzn7"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "a": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "App builder code"
        },
        "s": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$"
          },
          "description": "Service builder codes"
        },
        "w": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "Wallet builder code"
        }
      },
      "additionalProperties": false
    }
  }
}

Provenance

Seen in the source catalog: 2026-09-21 17:40Z
Last indexed by Roundhouse: 2026-09-24 14:50Z
Last enriched (probe, favicon, geo): 2026-09-10 07:45Z
x402 version: 2
Max timeout: 300s
Liveness probe: HTTP 405

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service api.getplexa.com and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=api.getplexa.com'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://api.getplexa.com/v1/quote, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.