Orthogonal

Orthogonal Signalbase API

The Signalbase API from Orthogonal — 9 operation(s) for signalbase.

Documentation GitHub OpenAPI

Operations 9

GET /signalbase/signals/funding Fetch funding signals with filtering by date, country, round type, amount… #

POST /signalbase/csv-enrichment Submit companies for batch enrichment with funding, acquisition, hiring, job… #

GET /signalbase/csv-enrichment/{jobId} Poll enrichment job status and retrieve completed results. #

GET /signalbase/signals/hiring Fetch hiring signals (open job postings) with position, department, seniority… #

GET /signalbase/signals/investors Fetch investor data including VCs, angels, PE firms, corporate investors… #

GET /signalbase/companies Browse and search companies with filtering by industry, size, location, and… #

GET /signalbase/signals/job-changes Fetch job change signals with role, department, seniority, and LinkedIn filters. #

GET /signalbase/signals/acquisitions Fetch acquisition signals with filtering by date, country, deal amount, and… #

GET /signalbase/people Discover people across employees and job-change subjects, filtered by title… #

Specifications

⚙

OpenAPI

https://raw.githubusercontent.com/api-evangelist/orthogonal/refs/heads/main/openapi/orthogonal-signalbase-api-openapi.yml

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this

find_apisBrowse and filter every API in the catalog.
get_api_artifactsOne API's artifacts, grouped by type.
get_openapiThe primary OpenAPI for this API.
find_similar_apisAPIs that look like this one.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This API

curl "https://apis.io/api/v1/apis/orthogonal-signalbase-api"

All apis

curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

openapi: 3.2.0
info:
  title: Orthogonal API Marketplace Signalbase API
  version: 1.0.0
  description: Discoverable APIs payable over MPP (Machine Payments Protocol / Tempo), x402, and np (Circle Gateway Nanopayments, x402 v2).
servers:
- url: https://mpp.orthogonal.com
  description: MPP (Tempo) rail
- url: https://x402.orthogonal.com
  description: x402 rail
- url: https://np.orthogonal.com
  description: np (Circle Gateway, x402 v2) rail
tags:
- name: Signalbase
paths:
  /signalbase/signals/funding:
    get:
      operationId: signalbase_GET__signals_funding
      summary: Fetch funding signals with filtering by date, country, round type, amount…
      tags:
      - Signalbase
      responses:
        '200':
          description: Successful response
        '402':
          description: Payment Required (x402 / MPP / np)
      x-payment-info:
        price: 0.08
        offers:
        - method: mpp
          intent: charge
          rail: tempo
          currency: USDC.e
          url: https://mpp.orthogonal.com/signalbase/signals/funding
        - method: x402
          intent: charge
          rail: base
          currency: USDC
          url: https://x402.orthogonal.com/signalbase/signals/funding
        - method: np
          intent: charge
          rail: base
          currency: USDC
          settlement: circle-gateway
          version: x402-v2
          url: https://np.orthogonal.com/signalbase/signals/funding
  /signalbase/csv-enrichment:
    post:
      operationId: signalbase_POST__csv_enrichment
      summary: Submit companies for batch enrichment with funding, acquisition, hiring, job…
      tags:
      - Signalbase
      responses:
        '200':
          description: Successful response
        '402':
          description: Payment Required (x402 / MPP / np)
      x-payment-info:
        price: 0.08
        offers:
        - method: mpp
          intent: charge
          rail: tempo
          currency: USDC.e
          url: https://mpp.orthogonal.com/signalbase/csv-enrichment
        - method: x402
          intent: charge
          rail: base
          currency: USDC
          url: https://x402.orthogonal.com/signalbase/csv-enrichment
        - method: np
          intent: charge
          rail: base
          currency: USDC
          settlement: circle-gateway
          version: x402-v2
          url: https://np.orthogonal.com/signalbase/csv-enrichment
  /signalbase/csv-enrichment/{jobId}:
    get:
      operationId: signalbase_GET__csv_enrichment_jobId_
      summary: Poll enrichment job status and retrieve completed results.
      tags:
      - Signalbase
      responses:
        '200':
          description: Successful response
        '402':
          description: Payment Required (x402 / MPP / np)
      x-payment-info:
        price: 0.08
        offers:
        - method: mpp
          intent: charge
          rail: tempo
          currency: USDC.e
          url: https://mpp.orthogonal.com/signalbase/csv-enrichment/{jobId}
        - method: x402
          intent: charge
          rail: base
          currency: USDC
          url: https://x402.orthogonal.com/signalbase/csv-enrichment/{jobId}
        - method: np
          intent: charge
          rail: base
          currency: USDC
          settlement: circle-gateway
          version: x402-v2
          url: https://np.orthogonal.com/signalbase/csv-enrichment/{jobId}
  /signalbase/signals/hiring:
    get:
      operationId: signalbase_GET__signals_hiring
      summary: Fetch hiring signals (open job postings) with position, department, seniority…
      tags:
      - Signalbase
      responses:
        '200':
          description: Successful response
        '402':
          description: Payment Required (x402 / MPP / np)
      x-payment-info:
        price: 0.08
        offers:
        - method: mpp
          intent: charge
          rail: tempo
          currency: USDC.e
          url: https://mpp.orthogonal.com/signalbase/signals/hiring
        - method: x402
          intent: charge
          rail: base
          currency: USDC
          url: https://x402.orthogonal.com/signalbase/signals/hiring
        - method: np
          intent: charge
          rail: base
          currency: USDC
          settlement: circle-gateway
          version: x402-v2
          url: https://np.orthogonal.com/signalbase/signals/hiring
  /signalbase/signals/investors:
    get:
      operationId: signalbase_GET__signals_investors
      summary: Fetch investor data including VCs, angels, PE firms, corporate investors…
      tags:
      - Signalbase
      responses:
        '200':
          description: Successful response
        '402':
          description: Payment Required (x402 / MPP / np)
      x-payment-info:
        price: 0.08
        offers:
        - method: mpp
          intent: charge
          rail: tempo
          currency: USDC.e
          url: https://mpp.orthogonal.com/signalbase/signals/investors
        - method: x402
          intent: charge
          rail: base
          currency: USDC
          url: https://x402.orthogonal.com/signalbase/signals/investors
        - method: np
          intent: charge
          rail: base
          currency: USDC
          settlement: circle-gateway
          version: x402-v2
          url: https://np.orthogonal.com/signalbase/signals/investors
  /signalbase/companies:
    get:
      operationId: signalbase_GET__companies
      summary: Browse and search companies with filtering by industry, size, location, and…
      tags:
      - Signalbase
      responses:
        '200':
          description: Successful response
        '402':
          description: Payment Required (x402 / MPP / np)
      x-payment-info:
        price: 0.08
        offers:
        - method: mpp
          intent: charge
          rail: tempo
          currency: USDC.e
          url: https://mpp.orthogonal.com/signalbase/companies
        - method: x402
          intent: charge
          rail: base
          currency: USDC
          url: https://x402.orthogonal.com/signalbase/companies
        - method: np
          intent: charge
          rail: base
          currency: USDC
          settlement: circle-gateway
          version: x402-v2
          url: https://np.orthogonal.com/signalbase/companies
  /signalbase/signals/job-changes:
    get:
      operationId: signalbase_GET__signals_job_changes
      summary: Fetch job change signals with role, department, seniority, and LinkedIn filters.
      tags:
      - Signalbase
      responses:
        '200':
          description: Successful response
        '402':
          description: Payment Required (x402 / MPP / np)
      x-payment-info:
        price: 0.08
        offers:
        - method: mpp
          intent: charge
          rail: tempo
          currency: USDC.e
          url: https://mpp.orthogonal.com/signalbase/signals/job-changes
        - method: x402
          intent: charge
          rail: base
          currency: USDC
          url: https://x402.orthogonal.com/signalbase/signals/job-changes
        - method: np
          intent: charge
          rail: base
          currency: USDC
          settlement: circle-gateway
          version: x402-v2
          url: https://np.orthogonal.com/signalbase/signals/job-changes
  /signalbase/signals/acquisitions:
    get:
      operationId: signalbase_GET__signals_acquisitions
      summary: Fetch acquisition signals with filtering by date, country, deal amount, and…
      tags:
      - Signalbase
      responses:
        '200':
          description: Successful response
        '402':
          description: Payment Required (x402 / MPP / np)
      x-payment-info:
        price: 0.08
        offers:
        - method: mpp
          intent: charge
          rail: tempo
          currency: USDC.e
          url: https://mpp.orthogonal.com/signalbase/signals/acquisitions
        - method: x402
          intent: charge
          rail: base
          currency: USDC
          url: https://x402.orthogonal.com/signalbase/signals/acquisitions
        - method: np
          intent: charge
          rail: base
          currency: USDC
          settlement: circle-gateway
          version: x402-v2
          url: https://np.orthogonal.com/signalbase/signals/acquisitions
  /signalbase/people:
    get:
      operationId: signalbase_GET__people
      summary: Discover people across employees and job-change subjects, filtered by title…
      tags:
      - Signalbase
      responses:
        '200':
          description: Successful response
        '402':
          description: Payment Required (x402 / MPP / np)
      x-payment-info:
        price: 0.08
        offers:
        - method: mpp
          intent: charge
          rail: tempo
          currency: USDC.e
          url: https://mpp.orthogonal.com/signalbase/people
        - method: x402
          intent: charge
          rail: base
          currency: USDC
          url: https://x402.orthogonal.com/signalbase/people
        - method: np
          intent: charge
          rail: base
          currency: USDC
          settlement: circle-gateway
          version: x402-v2
          url: https://np.orthogonal.com/signalbase/people
x-service-info:
  name: Orthogonal
  docs:
    llms: https://api.orthogonal.com/llms.txt
  protocols:
  - mpp
  - x402
  - np