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BTCFi API

aiindigo925/btcfi-api
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Install to Claude Code

This server doesn't publish a one-line install command. Follow the setup in the source repository.

Summary

Bitcoin data for AI agents. 27 tools with x402 micropayments.

README.md

BTCFi API

Bitcoin Intelligence API for AI Agents

![License: MIT](LICENSE) ![Version](https://github.com/aiindigo925/btcfi-api)

Live at btcfi.aiindigo.com · Built by AI Indigo · GitHub

---

BTCFi API is an agent-native Bitcoin intelligence platform providing 80+ endpoints across Bitcoin, Ethereum, Solana, Lightning Network, Runes, and Taproot Assets. Powered by x402 micropayments — pay $0.01–$0.05 per query in USDC, no API keys or subscriptions required. CoinGecko integration provides multi-currency pricing (38 fiat currencies). AI agents discover endpoints at /llms.txt and integrate via MCP, SDK, or raw HTTP.

Free Tier

100 calls/day per IP — no signup, no API keys, just make a request:

curl https://btcfi.aiindigo.com/api/v1/fees
{
  "fastest": 12,
  "30min": 8,
  "1hr": 5,
  "economy": 3,
  "fastestUSD": "$2.40",
  "recommended": "8 sat/vB"
}

Quick Start

AI Agents (MCP): ``bash npx @aiindigo/btcfi-mcp ``

SDK: ``bash npm install @aiindigo/btcfi ``

import { BTCFi } from "@aiindigo/btcfi";

const btcfi = new BTCFi({ network: "base" });
const fees = await btcfi.fees();
const risk = await btcfi.intelligence.risk("bc1q...");

Raw HTTP: ```bash

Free endpoint — no auth needed

curl https://btcfi.aiindigo.com/api/v1/mempool

Paid endpoint — requires x402 micropayment

curl -X GET https://btcfi.aiindigo.com/api/v1/intelligence/whales \ -H "X-Payment: <x402-payment-proof>" ```

OpenAPI Spec: `` https://btcfi.aiindigo.com/openapi.json ``

API Reference

Core Bitcoin Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/fees | Fee estimates (fastest, 30min, 1hr, economy) with USD values | $0.01 | | GET /api/v1/mempool | Mempool summary, tx count, size, fee histogram | $0.01 | | GET /api/v1/address/{addr} | Address balance, tx count, funded/spent stats | $0.01 | | GET /api/v1/address/{addr}/utxos | Unspent transaction outputs | $0.01 | | GET /api/v1/address/{addr}/txs | Transaction history | $0.01 | | GET /api/v1/tx/{txid} | Full transaction details | $0.01 | | GET /api/v1/tx/{txid}/status | Confirmation status | $0.01 | | POST /api/v1/tx/broadcast | Broadcast signed transaction | $0.05 | | GET /api/v1/block/latest | Latest blocks with details | $0.01 | | GET /api/v1/block/{id} | Block by height or hash | $0.01 |

Intelligence Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/intelligence/fees | AI fee prediction (1h, 6h, 24h windows) | $0.02 | | GET /api/v1/intelligence/whales | Large transaction detection | $0.02 | | GET /api/v1/intelligence/risk/{addr} | Address risk scoring | $0.02 | | GET /api/v1/intelligence/network | Hashrate, difficulty, congestion | $0.02 | | GET /api/v1/intelligence/consolidate/{addr} | UTXO consolidation advice | $0.02 | | GET /api/v1/intelligence/mvrv | MVRV ratio | $0.02 | | GET /api/v1/intelligence/sopr | SOPR (Spent Output Profit Ratio) | $0.02 | | GET /api/v1/intelligence/nupl | NUPL (Net Unrealized Profit/Loss) | $0.02 | | GET /api/v1/intelligence/hodl-waves | HODL wave distribution | $0.02 |

Security Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/security/threat/{addr} | YARA-pattern threat analysis (8 patterns) | $0.02 |

ZK Proof Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | POST /api/v1/zk/balance-proof | Prove balance ≥ threshold | $0.03 | | POST /api/v1/zk/age-proof | Prove UTXO age ≥ N blocks | $0.03 | | POST /api/v1/zk/membership | Prove set membership | $0.03 | | POST /api/v1/zk/verify | Verify any ZK proof | $0.01 |

Solv Protocol Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/solv/reserves | SolvBTC supply, backing ratio, TVL | $0.02 | | GET /api/v1/solv/yield | xSolvBTC APY, yield strategies | $0.02 | | GET /api/v1/solv/liquidity | Cross-chain SolvBTC distribution | $0.02 | | GET /api/v1/solv/risk | Multi-factor risk assessment | $0.02 |

Cross-Chain Endpoints

Ethereum ($0.01): | Endpoint | Description | |----------|-------------| | GET /api/v1/eth/gas | ETH gas prices | | GET /api/v1/eth/address/{addr} | ETH address balance | | GET /api/v1/eth/tx/{hash} | ETH transaction details |

Solana ($0.01): | Endpoint | Description | |----------|-------------| | GET /api/v1/sol/fees | SOL priority fees | | GET /api/v1/sol/address/{addr} | SOL address balance |

Runes Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/runes | List all Bitcoin Runes tokens | $0.02 | | GET /api/v1/runes/trending | Trending Runes by 24h activity | $0.02 | | GET /api/v1/runes/{ticker} | Runes token details | $0.02 | | GET /api/v1/runes/{ticker}/holders | Holder distribution | $0.02 | | GET /api/v1/runes/{ticker}/transfers | Recent transfers | $0.02 |

Taproot Assets Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/taproot/assets/{addr} | Taproot Assets held by address | $0.02 | | GET /api/v1/taproot/assets/{addr}/{assetId} | Taproot Asset details | $0.02 |

Lightning Network Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/lightning/node/{pubkey} | Lightning node info | $0.02 | | GET /api/v1/lightning/channels/{chanId} | Channel details | $0.02 | | GET /api/v1/lightning/routing-fee | Routing fee estimate | $0.02 | | GET /api/v1/intelligence/lightning | Lightning network intelligence | $0.02 |

Portfolio Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/portfolio | List portfolios | $0.01 | | GET /api/v1/portfolio/{userId} | Get user portfolio | $0.01 | | GET /api/v1/portfolio/{userId}/analytics | Portfolio analytics | $0.02 | | GET /api/v1/intelligence/portfolio/{addr} | Address portfolio analysis | $0.02 |

Alerts Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/alerts | List alert rules | Free | | GET /api/v1/alerts/rules | Manage alert rules | Free | | DELETE /api/v1/alerts/rules/{id} | Delete alert rule | Free | | GET /api/v1/alerts/history | Alert trigger history | Free | | POST /api/v1/alerts/evaluate | Evaluate alert conditions | Free |

Price Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/price | BTC price (CoinGecko: 38 fiat currencies) | Free |

Real-Time Streams

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/v1/stream | SSE: new blocks, fee changes, mempool surges | $0.01 | | GET /api/v1/stream/whales | SSE: whale transaction alerts (?min=100 BTC) | $0.01 |

Agent Integration

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/mcp | MCP server info and tools | Free | | GET /llms.txt | AI agent discovery file | Free | | GET /api/v1/agent-skills | Agent skill registry | Free |

System Endpoints

| Endpoint | Description | Price | |----------|-------------|-------| | GET /api/health | System health check | Free | | GET /api/v1/staking/status | Staking tier and rate limit status | Free |

Pricing

| Category | Price (USDC) | |----------|-------------| | Core Bitcoin (fees, mempool, address, tx, block) | $0.01 | | Intelligence (whales, risk, MVRV, SOPR, NUPL, HODL waves, cluster, graph) | $0.02 | | Security (threat analysis) | $0.02 | | Solv Protocol (reserves, yield, liquidity, risk) | $0.02 | | Runes (tokens, holders, transfers, trending) | $0.02 | | Taproot Assets (asset list, asset details) | $0.02 | | Lightning Network (nodes, channels, routing fees) | $0.02 | | Portfolio (addresses, analytics) | $0.01–$0.02 | | ZK Proofs (balance, age, membership) | $0.03 | | Transaction broadcast | $0.05 | | Ethereum / Solana | $0.01 | | Streams (SSE) | $0.01 | | Price (CoinGecko multi-currency) | Free | | Alerts (rules, history, evaluate) | Free | | System (health, status) | Free | | Agent Discovery (/llms.txt, /api/mcp) | Free |

Free Tier: 100 calls/day per IP, no signup required.

Authentication

BTCFi API uses x402 micropayments — no API keys, no OAuth, no subscriptions.

  1. Free endpoints — No authentication. Just make a request.
  2. Paid endpoints — Include an X-Payment header with a USDC micropayment proof.
  3. Payment networks:
  • Base (EVM L2) — Coinbase facilitator, zero fees, ERC-3009
  • Solana — NLx402 by PCEF (nonprofit), zero fees

Request signing (optional, for higher rate limits):

  • Wallet-based signing with Ed25519 (Solana) or secp256k1 (EVM)
  • Headers: X-Signature, X-Nonce, X-Signer, X-Timestamp

Free for Humans

Completely free — no signup, no API keys, no secrets. This is a PUBLIC repository. Just open Telegram:

/start /help /price /whale /fear /hash /mempool /halving /etf /funding /dominance /mining /lightning /signal /l2 /block /mvrv /sopr /nupl /entity /portfolio /staking /threat /eth_addr /sol_addr /digest /alerts /watch /unwatch /watchlist /runes /ordinals /taproot /cluster /graph /batch /webhooks /premium

  • @BTCFi_Whales — Real-time whale transaction alerts, auto-posted every 15 min
  • Web Dashboard — Live BTC price, fees, mempool, address lookup, whale watch

Security

  • Wallet-based request signing (Ed25519 + secp256k1)
  • Encrypted responses (Curve25519 + XSalsa20-Poly1305)
  • Zero-knowledge proofs (Groth16)
  • 8 YARA-style threat detection patterns
  • Nonce replay protection
  • PEAC Protocol cryptographic receipts
  • Tiered rate limiting (free: 100/min, signed: 500/min, paid: unlimited)

Report vulnerabilities: security@aiindigo.com

Self-Hosted

Run the API locally for development or private deployment:

git clone https://github.com/aiindigo925/btcfi-api.git
cd btcfi-api
npm install
cp .env.example .env    # Configure environment variables
npm run dev              # Start on port 3001

Required environment variables:

  • UPSTASH_REDIS_REST_URL — Redis connection for caching
  • UPSTASH_REDIS_REST_TOKEN — Redis auth token
  • X402_NETWORK — Payment network (base or solana)
  • X402_FACILITATOR_URL — x402 facilitator endpoint

Documentation

| Doc | Description | |-----|-------------| | docs/ROADMAP.md | Project history and future plans | | docs/ARCHITECTURE.md | System design and endpoint reference | | docs/SECURITY.md | Security model and features | | docs/CHANGELOG.md | Version history |

Packages & Distribution

| Package | Description | |---------|-------------| | @aiindigo/btcfi | TypeScript SDK — 28 methods | | @aiindigo/btcfi-mcp | MCP Server — 45 tools for Claude, ChatGPT, Gemini | | MCP Registry | io.github.aiindigo925/btcfi | | Glama | Indexed — searchable MCP directory | | @BTC_Fi_Bot | Telegram bot — 28 commands + inline mode |

Contributing

We welcome contributions! See CONTRIBUTING.md for guidelines.

License

MIT — Copyright © 2026 AI Indigo

---

No token. No API keys. Just Bitcoin data. Ship > talk. 🚀

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