text-embeddings-vector-api

Text embeddings over x402 — nomic-embed-text (768-dim) on OUR OWN GPU, never forwarded to a third-party API. OpenAI-shaped data[{index, embedding}] response; batch up to 16 texts in ONE flat-price call. For RAG, semantic search, dedup and memory pipelines. No API key, no account. GET ?text= or POST {input:[...]}. Free: GET /v1/ai/embed/preview. Cryptographically signed (Ed25519) — every response is independently verifiable via /.well-known/obol-pubkey.

Searchoffline · HTTP 530eip155:8453Exactvia cdp

https://obol-x402.fly.dev/v1/ai/embed

Text-embeddingsEmbedding-vectorRagSemantic-searchNomic-embed

Activity

—

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.

$16.17

Verified settled volume

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

$0.0020

Listed price

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

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Calls · 30d

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

—

Unique payers · 30d

Last called 2026-07-25 19:03Z

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Upstream on-chain volume

Reported by the source catalog.

Paid to

0x215f0C5e62735A54185f253B6245A630b744a7Ce

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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "PAYMENT-SIGNATURE header required",
  "usage": {
    "call": "https://obol-x402.fly.dev/v1/ai/embed?text=YOUR+TEXT",
    "params": {
      "text": "string to embed (required)",
      "input": "POST string[] for batch (max 16)"
    },
    "returns": "768-dim embedding vectors, OpenAI-shaped data[]",
    "free_preview": "https://obol-x402.fly.dev/v1/ai/embed/preview"
  },
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x215f0C5e62735A54185f253B6245A630b744a7Ce",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://obol-x402.fly.dev/v1/ai/embed",
    "tags": [
      "text-embeddings",
      "embedding-vector",
      "rag",
      "semantic-search",
      "nomic-embed"
    ],
    "mimeType": "application/json",
    "description": "Text embeddings over x402 — nomic-embed-text (768-dim) on OUR OWN GPU, never forwarded to a third-party API. OpenAI-shaped data[{index, embedding}] response; batch up to 16 texts in ONE flat-price call. For RAG, semantic search, dedup and memory pipelines. No API key, no account. GET ?text= or POST {input:[...]}. Free: GET /v1/ai/embed/preview. Cryptographically signed (Ed25519) — every response is independently verifiable via /.well-known/obol-pubkey.",
    "serviceName": "text-embeddings-vector-api"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET"
        },
        "output": {
          "type": "json",
          "example": {
            "data": [
              {
                "index": 0,
                "object": "embedding",
                "embedding": [
                  0.0123,
                  "…"
                ]
              }
            ],
            "model": "nomic-embed-text",
            "object": "list"
          }
        },
        "discoverable": true
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "text"
                ],
                "properties": {
                  "text": {
                    "type": "string",
                    "description": "string to embed (GET ?text=… — or POST input as string[] for batch, max 16)"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "x402Version": 2
}

Accepts

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

0.002USDC≈ $0.002 USD

on Base · exact scheme

Pay 0.002 USDC on Base to 0x215f…4a7Ce. The signed payment is good for 5 minutes.

Paid to: 0x215f…4a7Ce
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 2000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x215f0C5e62735A54185f253B6245A630b744a7Ce",
    "amount": "2000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET"
      },
      "output": {
        "type": "json",
        "example": {
          "data": [
            {
              "index": 0,
              "object": "embedding",
              "embedding": [
                0.0123,
                "…"
              ]
            }
          ],
          "model": "nomic-embed-text",
          "object": "list"
        }
      },
      "discoverable": true
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "text"
              ],
              "properties": {
                "text": {
                  "type": "string",
                  "description": "string to embed (GET ?text=… — or POST input as string[] for batch, max 16)"
                }
              }
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-07-25 19:03Z
Last indexed by Roundhouse: 2026-07-26 00:20Z
Last enriched (probe, favicon, geo): 2026-09-02 20:15Z
x402 version: 2
Max timeout: 300s
Liveness probe: HTTP 530

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

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. 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 text-embeddings-vector-api 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=text-embeddings-vector-api'
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://obol-x402.fly.dev/v1/ai/embed, 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://app.roundhouseai.io/dashboard/team.

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