💰 Paid API

api.businesschanges.dev

api.businesschanges.dev · api.businesschanges.dev

Poll a compact, stable delta feed of events first observed since a timestamp or prior cursor, including superseded and retracted events. Use for recurring research and monitoring agents.

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Verify the domain api.businesschanges.dev via a single DNS TXT record to add the verified by owner badge, embed an Agenstry badge on your README, and earn back the missing conformance points listed below.

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🔔 Watch this agent. Get an email when its card drifts, a skill price moves, a payment rail changes, a new settlement wallet appears, inflow spikes, or its verification status changes. Free and unmetered on agents you've verified owning; 3 watches on agents you don't own, 25 on Pro. Sign in to watch

Our probe of this card is currently failing — 404 not found

We tried /.well-known/agent-card.json and got a 404. Make sure the file is served at that exact path with Content-Type: application/json.

      
        Last attempt: 2026-08-19 06:15
      
        Last success: 2026-08-19
      
        Status: 404

Raw error

HTTP 404

Trust score

34/100

grade F · 9 criteria

Uptime

accumulating

2/5 direct probes · 30d

Observed inflow · 30d

$0.00

wallet active · no inflow

Dispute or improve this rating

F

Conformance score: 34/100

F-grade: card is reachable but fails most operational signals.

click to expand breakdown ▾ click to collapse breakdown ▴

pass Valid AgentCard 10/10

Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).

partial Live JSON-RPC 15/25

Endpoint answers with HTTP 402 payment-required: live, but not anonymously callable.

            How to earn +10 points
          

Respond live on JSON-RPC

Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload.

Docs →

fail Protocol version 0/10

No protocolVersion in card.

            How to earn +10 points
          

Declare protocolVersion

Add `"protocolVersion": "1.0"` to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.

Docs →

info JWS signature 0/10

Card is unsigned (most published agents are).

info Uptime track record 0/15

Only 2 probes so far, need ≥5 for an uptime grade.

fail Skill declaration 0/10

No skills declared in card. Hard to route to.

            How to earn +10 points
          

Declare your skills

Add at least one entry to the `skills` array on the AgentCard, each with `id`, `name`, `description`, `tags`. We canonicalise these into the global skill taxonomy on next probe.

Docs →

partial Verified Identity 5/10

Provider declared: api.businesschanges.dev (https://api.businesschanges.dev). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.

            How to earn +5 points
          

Verify your domain ownership

Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.

Docs →

pass Freshness + modern flags 4/5

seen in upstream source within 0d

info Security declaration 0/5

Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.

⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Uptime

0.0%

2 direct probes · 30d

Response

—

last direct probe

Skills

declared

Streaming

—

SSE-capable

Endpoints

Pricing x402 on Base per call USDC Facilitator feed Dispute or improve this rating

From $0.0200 per call

Endpoint	Price	Currency
`https://api.businesschanges.dev/v1/changes`	0.05	USDC
`https://api.businesschanges.dev/v1/events/evidence`	0.02	USDC
`https://api.businesschanges.dev/v1/events/search`	0.1	USDC
`https://api.businesschanges.dev/v1/locations/timeline`	0.03	USDC

Try it ↗ Opens the operator's playground / docs in a new tab.

Settlement wallet: 0x4dbd0d9be6171c212617b8adc4d35152f9f23115 · basescan ↗

Observed on-chain inflow verified on-chain

Last 7d

                  $0.00
                

0 calls

Last 30d

                  $0.00
                

0 calls

USDC inflows on Base. Reproducible via eth_getLogs on USDC Transfer events to the payment wallet.

Daily 30-day observed-inflow history

2026-08-08 2026-08-19

Peak day: $0.00 Data points: 12 Total tx (30d window): 0

Agent card	`https://api.businesschanges.dev/.well-known/agent-card.json`
Provider	https://api.businesschanges.dev
Docs	https://api.businesschanges.dev

Discovered via

agentic_market recrawl_hot recrawl_warm cdp_discovery

Health · last 2 probes

When	HTTP	Live JSON-RPC	Latency
2026-07-31 12:42:23	404	—	—
2026-07-29 09:14:26	404	—	—

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Markdown / HTML snippets

[![Agenstry grade](https://agenstry.com/badge/api.businesschanges.dev.svg)](https://agenstry.com/agents/api.businesschanges.dev)
[![Verified Business](https://agenstry.com/badge/api.businesschanges.dev/identity.svg)](https://agenstry.com/agents/api.businesschanges.dev)
[![Uptime](https://agenstry.com/badge/api.businesschanges.dev/uptime.svg)](https://agenstry.com/agents/api.businesschanges.dev)
[![A2A version](https://agenstry.com/badge/api.businesschanges.dev/protocol.svg)](https://agenstry.com/agents/api.businesschanges.dev)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history

Raw agent card JSON

{
  "_source": "agentic.market",
  "service": {
    "id": "api-businesschanges-dev",
    "name": "api.businesschanges.dev",
    "description": "",
    "domain": "api.businesschanges.dev",
    "provider": "api.businesschanges.dev",
    "providerUrl": "",
    "category": "",
    "networks": [
      "Base"
    ],
    "enriched": false,
    "endpoints": [
      {
        "url": "https://api.businesschanges.dev/v1/changes",
        "description": "Poll a compact, stable delta feed of events first observed since a timestamp or prior cursor, including superseded and retracted events. Use for recurring research and monitoring agents.",
        "pricing": {
          "amount": "0.05",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "limit",
            "type": "number",
            "description": "",
            "example": 50,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "minClassificationConfidence",
            "type": "number",
            "description": "",
            "example": 0.75,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "minEvidenceStrength",
            "type": "string",
            "description": "",
            "example": "strong",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "observedAfter",
            "type": "string",
            "description": "",
            "example": "2026-07-01T00:00:00.000Z",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "projection",
            "type": "string",
            "description": "",
            "example": "compact",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Business Change Intelligence API",
        "tags": [
          "business-changes",
          "change-feed",
          "monitoring",
          "research"
        ],
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "2"
        }
      },
      {
        "url": "https://api.businesschanges.dev/v1/events/evidence",
        "description": "Expand selected business event IDs into dated, versioned primary-source evidence. Use after lead search to verify a small set of results before citing or acting on them.",
        "pricing": {
          "amount": "0.02",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "eventIds",
            "type": "array",
            "description": "",
            "example": [],
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Business Change Intelligence API",
        "tags": [
          "business-changes",
          "evidence",
          "public-records",
          "verification"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        }
      },
      {
        "url": "https://api.businesschanges.dev/v1/events/search",
        "description": "Find previously unknown businesses or locations with recent license, permit, inspection, ownership, opening, closure, or tenant-transition signals. Use for market research, sales prospecting, expansion tracking, and location intelligence. Results are compact by default and always distinguish regulatory leads from confirmed public status.",
        "pricing": {
          "amount": "0.1",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "geography",
            "type": "object",
            "description": "",
            "example": null,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "industries",
            "type": "array",
            "description": "",
            "example": [],
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "intents",
            "type": "array",
            "description": "",
            "example": [],
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "jurisdictions",
            "type": "array",
            "description": "",
            "example": [],
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "limit",
            "type": "number",
            "description": "",
            "example": 25,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "minClassificationConfidence",
            "type": "number",
            "description": "",
            "example": 0.75,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "minEvidenceStrength",
            "type": "string",
            "description": "",
            "example": "strong",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "projection",
            "type": "string",
            "description": "",
            "example": "compact",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Business Change Intelligence API",
        "tags": [
          "business-changes",
          "sales-intelligence",
          "public-records",
          "location-intelligence",
          "research"
        ],
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "1"
        }
      },
      {
        "url": "https://api.businesschanges.dev/v1/locations/timeline",
        "description": "Retrieve chronological business-change events for an exact premises or, when explicitly requested, its parent building. The response discloses match scope and preserves suite identity.",
        "pricing": {
          "amount": "0.03",
          "currency": "USDC",
          "network": "eip155:8453",
          "scheme": "exact",
          "maxAmount": "",
          "minAmount": ""
        },
        "method": "POST",
        "providerName": "",
        "parameters": [
          {
            "group": "body",
            "name": "address",
            "type": "string",
            "description": "",
            "example": "5959 Lake Nona Blvd Ste 115",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "city",
            "type": "string",
            "description": "",
            "example": "Orlando",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "limit",
            "type": "number",
            "description": "",
            "example": 50,
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "matchScope",
            "type": "string",
            "description": "",
            "example": "exact_premise",
            "enumValues": [],
            "default": null,
            "required": false
          },
          {
            "group": "body",
            "name": "regionCode",
            "type": "string",
            "description": "",
            "example": "FL",
            "enumValues": [],
            "default": null,
            "required": false
          }
        ],
        "serviceName": "Business Change Intelligence API",
        "tags": [
          "business-changes",
          "location-intelligence",
          "timelines",
          "public-records"
        ],
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "2"
        }
      }
    ],
    "integrationType": "",
    "isNew": false,
    "priceSummary": {
      "minAmount": "0.02",
      "maxAmount": "0.1",
      "avgCostPerTransaction": "0.05",
      "avgCostBasis": "exact",
      "currency": "USDC"
    },
    "serviceName": "Business Change Intelligence API",
    "tags": [
      "business-changes",
      "change-feed",
      "monitoring",
      "research",
      "evidence",
      "public-records",
      "verification",
      "sales-intelligence",
      "location-intelligence",
      "timelines"
    ],
    "iconUrl": ""
  }
}

Activity (audit trail)

Endpoints

Health · last 2 probes

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