edu.college-scorecard

Search US colleges + universities via the Department of Education College Scorecard API. Filter by free-text name (q), OPE/IPEDS school id, state, city, zip, ownership (1=Public | 2=Private nonprofit | 3=Private for-profit), predominant degree level (0=Not classified | 1=Certificate | 2=Associate | 3=Bachelor | 4=Graduate), enrollment range. Returns a curated field set per school: identity (name, alias, URL, location), classification (Carnegie, locale, religious affiliation, minority-serving designation), latest admissions (admit rate, SAT/ACT midpoints), cost (in-state + out-of-state tuition, total cost of attendance), aid (median debt, federal-loan rate, Pell rate), completion rate, 10-year median earnings, repayment rate, lat/lon. Every accredited US institution. Use perPage + page for pagination; page is 0-indexed.

price

$0.0012 USDC per call

method

GET/api/edu/college-scorecard

payment

x402 v2 · USDC on Base (EIP-3009) or Solana (SPL transfer)

auth

None. Sign the payment, retry with PAYMENT-SIGNATURE.

tier

Tier 0 — no paid upstream

Parameters

Name	Type	Description
`q`	string	min 1 chars · max 120 chars
`schoolId`	integer	min 1
`state`	string	min 2 chars · max 2 chars · match ^[A-Za-z]{2}$
`city`	string	min 2 chars · max 80 chars
`zip`	string	match ^\d{5}$
`ownership`	integer
`degreePredominant`	integer
`minEnrollment`	integer	min 0
`maxEnrollment`	integer	min 1
`perPage`	integer	min 1 · max 100
`page`	integer	min 0
`fields`	string	max 2000 chars

Code samples

cURLbash

# 1. Probe with no auth → 402 envelope with PaymentRequirements
curl -sS 'https://2s.io/api/edu/college-scorecard?q=example&schoolId=1&state=xx&city=xx&zip=12345&ownership=1&degreePredominant=1&minEnrollment=0&maxEnrollment=1&perPage=20&page=0&fields=example'

# 2. Sign + retry with PAYMENT-SIGNATURE:
curl -sS 'https://2s.io/api/edu/college-scorecard?q=example&schoolId=1&state=xx&city=xx&zip=12345&ownership=1&degreePredominant=1&minEnrollment=0&maxEnrollment=1&perPage=20&page=0&fields=example' \
  -H 'PAYMENT-SIGNATURE: <base64-json-payload>'

# Or use the canonical runner (handles probe → sign → retry):
#   EVM_PRIVATE_KEY=0x... node --env-file=.env.local \
#     --experimental-strip-types scripts/x402-pay.ts \
#     'https://2s.io/api/edu/college-scorecard?q=example&schoolId=1&state=xx&city=xx&zip=12345&ownership=1&degreePredominant=1&minEnrollment=0&maxEnrollment=1&perPage=20&page=0&fields=example'

TypeScript / Node — @2sio/sdktypescript

import { TwoS } from '@2sio/sdk'

const client = new TwoS({
  privateKey: process.env.EVM_PRIVATE_KEY as `0x${string}`,
})

const result = await client.edu.collegeScorecard({
  "q": "example",
  "schoolId": 1,
  "state": "xx",
  "city": "xx",
  "zip": "12345",
  "ownership": 1,
  "degreePredominant": 1,
  "minEnrollment": 0,
  "maxEnrollment": 1,
  "perPage": 20,
  "page": 0,
  "fields": "example"
})

console.log('endpoint:', result.endpoint)
console.log('cost:', result.costUsd, 'USDC')
console.log('tx:', result.settlement?.txHash)
console.log('data:', result.data)

Python — 2siopython

import os
from twosio import TwoS

client = TwoS(private_key=os.environ["EVM_PRIVATE_KEY"])

result = client.edu.college_scorecard(q="example", schoolId=1, state="xx", city="xx", zip="12345", ownership=1, degreePredominant=1, minEnrollment=0, maxEnrollment=1, perPage=20, page=0, fields="example")

print("endpoint:", result.endpoint)
print("cost:", result.cost_usd, "USDC")
print("tx:", (result.settlement or {}).get("tx_hash"))
print("data:", result.data)

MCP — Claude Desktop / AgentKit / any MCP hostjson

// 1. Add @2sio/mcp to your MCP host config (Claude Desktop example below).
//    EVM_PRIVATE_KEY funds x402 payments per call.

// claude_desktop_config.json
{
  "mcpServers": {
    "2sio": {
      "command": "npx",
      "args": ["-y", "@2sio/mcp"],
      "env": { "EVM_PRIVATE_KEY": "0x..." }
    }
  }
}

// 2. Once the server is running, agents call this tool via standard MCP:

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "edu.college-scorecard",
    "arguments": {
      "q": "example",
      "schoolId": 1,
      "state": "xx",
      "city": "xx",
      "zip": "12345",
      "ownership": 1,
      "degreePredominant": 1,
      "minEnrollment": 0,
      "maxEnrollment": 1,
      "perPage": 20,
      "page": 0,
      "fields": "example"
    }
  }
}

Discovery

/api/directory — full catalog of every endpoint
/openapi.json — OpenAPI 3.1 spec (per-op x-payment-info, x402Payment security)
/.well-known/x402 — machine-readable service descriptor for x402-aware crawlers
/.well-known/mcp/server-card.json — MCP SEP-1649 server card
/llms.txt — plain-text manifest for LLM ingestion

2s.io is x402-native. Every call is paid per-request from a USDC-funded EVM wallet on Base — no signup, no API keys, no monthly fees. Source code: github.com/2s-io/sdk.