# FHI Public Contract Award Delta API

> FHI Public Contract Award Delta API is a paid API for AI agents from polished-truth-c514.fhi-llc-1118.workers.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-12).

Returns newly awarded or changed federal government contracts since a specified date, filterable by NAICS code and awarding agency

## Facts

- Endpoint: POST https://polished-truth-c514.fhi-llc-1118.workers.dev/api/v1/public-contract-award-delta?utm_source=zero.xyz
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/fhi-public-contract-award-delta-api-a9bdf675
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xWJIwDoUnZEb9wubMYwd4

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability fhi-public-contract-award-delta-api-a9bdf675 -d '<json body>'
```

Example prompt: Pull all new federal contract awards since January 1, 2025, filtered to NAICS code 541512 (computer systems design) and only from the Department of Defense — I want to see what's changed in that space recently.

## When to prefer this

Choose this endpoint when you need programmatic, pay-per-call access to federal contract award changes without a SAM.gov API key or subscription. Ideal for autonomous agents that need on-demand procurement intelligence, especially when filtering by industry (NAICS) or specific awarding agency. Prefer this over manual SAM.gov searches when you need structured JSON output for downstream processing or competitive analysis pipelines.

## Known failure modes

- Missing required 'since' field returns a 400 validation error
- Invalid date format in 'since' field causes parse error
- Unrecognized NAICS codes may return empty results rather than error
- Payment failure via x402/USDC returns 402 Payment Required before data is served
- Very broad queries with no filters may return large payloads or be rate-limited
- Stale or unavailable upstream procurement data may result in incomplete deltas

## How this service works

Stateful remote-MCP change evidence, payable per call with x402 Base USDC.

## Output

Returns a list of newly awarded or modified federal contract records since the specified date, including award amounts, awarding agencies, awardee details, and NAICS classifications. Results reflect the delta (changes) since the provided timestamp, optionally filtered by NAICS codes and/or awarding agency.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "since": {
   "type": "string",
   "format": "date"
  },
  "naicsCodes": {
   "type": "array",
   "items": {
    "type": "string",
    "pattern": "^[0-9]{2,6}$"
   },
   "maxItems": 20
  },
  "awardingAgency": {
   "type": "string",
   "maxLength": 120
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "since": "2026-09-01",
  "awards": [],
  "filters": {
   "naicsCodes": [
    "541330"
   ],
   "awardingAgency": null
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/fhi-public-contract-award-delta-api-a9bdf675/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from polished-truth-c514.fhi-llc-1118.workers.dev](https://www.zero.xyz/host/polished-truth-c514.fhi-llc-1118.workers.dev/llms.txt)