GrantIQ MCP

A paid MCP server that gives AI agents instant, structured access to every open US federal grant and contract opportunity. Backed by Grants.gov + SAM.gov, with 24-hour SQLite caching, per-key daily limits, and a Stripe-friendly upgrade hook.

https://mcp-grantiq.up.railway.app/mcp

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MCPize listing copy

Title: GrantIQ MCP — US Federal Grants & Contracts for AI Agents

Subtitle: Search, match, and monitor every open SAM.gov and Grants.gov opportunity from any LLM, in one tool call.

GrantIQ MCP turns the messy world of US government funding into a clean, agent-ready API. Eight typed tools cover everything from broad keyword search and NAICS-coded contract discovery to deadline radar and historical award lookups. Responses are normalized across both data sources, returned as plain JSON, and cached for 24 hours so repeat queries don't burn rate limit on the upstream agencies.

Built for procurement copilots, grant-finder agents, and B2G sales tools, GrantIQ MCP ships with a free tier (50 calls/day) that any developer can drop into Claude or Cursor in 15 seconds. Upgrade to Pro for $19/mo for unlimited calls, or pay $0.02 per call for bursty workloads — billing flips a key from free to pro via a single webhook, with no app rewrites required.

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Pricing

Tier	Price	Limit
Free	$0	50 calls / day / key
Pro	$19 / month	Unlimited
Pay-as-you-go	$0.02 / call	Unlimited

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Install

claude mcp add grantiq-mcp --url https://mcp-grantiq.up.railway.app/mcp

Then add the API key Claude should use:

claude mcp env grantiq-mcp X-API-Key=grantiq-dev-key-001

The dev key grantiq-dev-key-001 is seeded automatically and capped at 50 calls/day. Mint your own with the admin endpoint below.

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Tool reference

Tool	Args	Returns
search_grants	keyword, agency, amount_min, amount_max, status, limit	List of matching grants
get_grant_details	opportunity_id	Full grant object
search_contracts	keyword, naics_code, agency, set_aside, limit	List of SAM contracts
get_contract_details	notice_id	Full contract object
match_opportunities	org_description, org_type, focus_areas	Top 10 matched opps (grants + contracts)
get_agencies	type (grants / contracts / both)	Agencies with open opps, ranked by volume
get_deadlines	days_ahead	Opportunities closing within N days
search_awards	recipient_name, agency, year	Past SAM award history

Every tool returns either:

{ "success": true,  "cached": false, "data": { ... } }

or, on failure:

{ "success": false, "error": "..." }

When the daily limit is hit, the HTTP layer returns 429 with body:

{ "error": "Limit reached. Upgrade at mcpize.com/grantiq-mcp" }

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curl examples

The MCP endpoint speaks the JSON-RPC streamable-HTTP protocol and is best used through an MCP client. For convenience, every tool also has a REST mirror at /tools/<tool>.

# Search grants
curl -s https://mcp-grantiq.up.railway.app/tools/search_grants \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: grantiq-dev-key-001' \
  -d '{"keyword":"renewable energy","limit":5}'

# Get grant details
curl -s https://mcp-grantiq.up.railway.app/tools/get_grant_details \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: grantiq-dev-key-001' \
  -d '{"opportunity_id":"345678"}'

# Search SAM.gov contracts (cyber, small-business set-aside)
curl -s https://mcp-grantiq.up.railway.app/tools/search_contracts \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: grantiq-dev-key-001' \
  -d '{"keyword":"cybersecurity","set_aside":"SBA","limit":5}'

# Get contract details
curl -s https://mcp-grantiq.up.railway.app/tools/get_contract_details \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: grantiq-dev-key-001' \
  -d '{"notice_id":"abc123"}'

# Match opportunities to an org profile
curl -s https://mcp-grantiq.up.railway.app/tools/match_opportunities \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: grantiq-dev-key-001' \
  -d '{"org_description":"Battery storage R&D startup","org_type":"for-profit","focus_areas":["energy","battery","storage"]}'

# Top agencies right now
curl -s https://mcp-grantiq.up.railway.app/tools/get_agencies \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: grantiq-dev-key-001' \
  -d '{"type":"both"}'

# Deadlines in the next 14 days
curl -s https://mcp-grantiq.up.railway.app/tools/get_deadlines \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: grantiq-dev-key-001' \
  -d '{"days_ahead":14}'

# Past award history
curl -s https://mcp-grantiq.up.railway.app/tools/search_awards \
  -H 'Content-Type: application/json' \
  -H 'X-API-Key: grantiq-dev-key-001' \
  -d '{"recipient_name":"Acme Corp","year":2025}'

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Operator endpoints

Mint a fresh key (free or pro):

curl -s https://mcp-grantiq.up.railway.app/admin/keys \
  -H 'X-Admin-Token: $GRANTIQ_ADMIN_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '{"tier":"free","daily_limit":50}'

Promote a free key to pro (called from the Stripe checkout success webhook):

curl -s https://mcp-grantiq.up.railway.app/billing/upgrade \
  -H 'X-Admin-Token: $GRANTIQ_ADMIN_TOKEN' \
  -H 'Content-Type: application/json' \
  -d '{"key":"grantiq_xxxxx"}'

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Local dev

python -m venv .venv && source .venv/bin/activate
pip install -r requirements.txt
cp .env.example .env
python server.py        # http://localhost:8000
pytest -v               # 22 tests, hermetic with respx mocks

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Deploy to Railway

The repo includes nixpacks.toml. After railway init, just railway up. The start command is python server.py (not uvicorn ...) because Railway exec's [start].cmd without a shell — server.py reads $PORT via os.getenv and starts uvicorn programmatically.

Set these on the Railway service:

• SAM_API_KEY — your SAM.gov key
• GRANTIQ_ADMIN_TOKEN — long random string
• GRANTIQ_DB_PATH — /data/grantiq.db if you mount a Volume (recommended so cache + keys survive deploys)

A ready-to-run deploy.sh is in this directory.

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Caveats

• SAM.gov award history is exposed via the opportunities API filtered to ptype=a (Award Notice). For deeper award analytics (CFDA-level totals, recipient rollups), USAspending.gov is more appropriate and would be a v2 add.
• Cache TTL is global (24h). For deadline-sensitive flows the agent should pass distinct query args or call /admin/keys to mint a key that bypasses cache (not yet exposed — see TODO).
• Match scoring is deterministic Jaccard over title + agency tokens. It's fast and free; an LLM rerank can be added behind the same interface.
• Stripe wiring is one-way (/billing/upgrade). The MCP server doesn't host the checkout page itself — that lives on the marketing site.