research.author

Resolve a researcher by ORCID iD. Pass orcid (e.g. 0000-0002-1825-0097, with or without the https://orcid.org/ prefix). Returns the researcher name, affiliations (employments and educations with organization, role, department, years, and a current flag), a total works count, and a works summary (title, type, year, DOI when present). Data: ORCID Public API, free and keyless; per-record visibility is set by the record holder. The canonical author key in scholarly metadata — pair with /api/papers/search, /api/paper/doi-lookup, and /api/research/org (ROR institutions). Use to verify an author identity, current institution, or publication record before citing.

price

$0.0012 USDC per call

method

GET/api/research/author

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
`orcid`required	string	ORCID iD, e.g. 0000-0002-1825-0097. min 16 chars · max 60 chars
`worksLimit`	integer	min 1 · max 50

Code samples

cURLbash

# 1. Probe with no auth → 402 envelope with PaymentRequirements
curl -sS 'https://2s.io/api/research/author?orcid=xxxxxxxxxxxxxxxx&worksLimit=20'

# 2. Sign + retry with PAYMENT-SIGNATURE:
curl -sS 'https://2s.io/api/research/author?orcid=xxxxxxxxxxxxxxxx&worksLimit=20' \
  -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/research/author?orcid=xxxxxxxxxxxxxxxx&worksLimit=20'

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.research.author({
  "orcid": "xxxxxxxxxxxxxxxx",
  "worksLimit": 20
})

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.research.author(orcid="xxxxxxxxxxxxxxxx", worksLimit=20)

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": "research.author",
    "arguments": {
      "orcid": "xxxxxxxxxxxxxxxx",
      "worksLimit": 20
    }
  }
}

Response

Field	Type	Description
`orcid`	string
`url`	string
`name`	object
`affiliations`	array
`worksCount`	number
`works`	array
`sources`	array

Example response datajson

{
  "orcid": "example",
  "url": "example",
  "name": {
    "given": "example",
    "family": "example",
    "credit": "example"
  },
  "affiliations": [
    {
      "type": "employment",
      "organization": "example",
      "roleTitle": "example",
      "department": "example",
      "startYear": 1,
      "endYear": 1,
      "current": false,
      "country": "example"
    }
  ],
  "worksCount": 1,
  "works": [
    {
      "title": "example",
      "type": "example",
      "year": 1,
      "doi": "example"
    }
  ],
  "sources": [
    {
      "provider": "example",
      "url": "example",
      "license": "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.